diff options
Diffstat (limited to 'fs/f2fs/super.c')
| -rw-r--r-- | fs/f2fs/super.c | 5423 |
1 files changed, 5090 insertions, 333 deletions
diff --git a/fs/f2fs/super.c b/fs/f2fs/super.c index 75c7dc363e92..c4c225e09dc4 100644 --- a/fs/f2fs/super.c +++ b/fs/f2fs/super.c @@ -1,163 +1,1744 @@ +// SPDX-License-Identifier: GPL-2.0 /* * fs/f2fs/super.c * * Copyright (c) 2012 Samsung Electronics Co., Ltd. * http://www.samsung.com/ - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. */ #include <linux/module.h> #include <linux/init.h> #include <linux/fs.h> +#include <linux/fs_context.h> +#include <linux/sched/mm.h> #include <linux/statfs.h> -#include <linux/buffer_head.h> -#include <linux/backing-dev.h> #include <linux/kthread.h> #include <linux/parser.h> #include <linux/mount.h> #include <linux/seq_file.h> +#include <linux/proc_fs.h> #include <linux/random.h> #include <linux/exportfs.h> #include <linux/blkdev.h> +#include <linux/quotaops.h> #include <linux/f2fs_fs.h> +#include <linux/sysfs.h> +#include <linux/quota.h> +#include <linux/unicode.h> +#include <linux/part_stat.h> +#include <linux/zstd.h> +#include <linux/lz4.h> +#include <linux/ctype.h> +#include <linux/fs_parser.h> #include "f2fs.h" #include "node.h" #include "segment.h" #include "xattr.h" +#include "gc.h" +#include "iostat.h" #define CREATE_TRACE_POINTS #include <trace/events/f2fs.h> static struct kmem_cache *f2fs_inode_cachep; +#ifdef CONFIG_F2FS_FAULT_INJECTION + +const char *f2fs_fault_name[FAULT_MAX] = { + [FAULT_KMALLOC] = "kmalloc", + [FAULT_KVMALLOC] = "kvmalloc", + [FAULT_PAGE_ALLOC] = "page alloc", + [FAULT_PAGE_GET] = "page get", + [FAULT_ALLOC_BIO] = "alloc bio(obsolete)", + [FAULT_ALLOC_NID] = "alloc nid", + [FAULT_ORPHAN] = "orphan", + [FAULT_BLOCK] = "no more block", + [FAULT_DIR_DEPTH] = "too big dir depth", + [FAULT_EVICT_INODE] = "evict_inode fail", + [FAULT_TRUNCATE] = "truncate fail", + [FAULT_READ_IO] = "read IO error", + [FAULT_CHECKPOINT] = "checkpoint error", + [FAULT_DISCARD] = "discard error", + [FAULT_WRITE_IO] = "write IO error", + [FAULT_SLAB_ALLOC] = "slab alloc", + [FAULT_DQUOT_INIT] = "dquot initialize", + [FAULT_LOCK_OP] = "lock_op", + [FAULT_BLKADDR_VALIDITY] = "invalid blkaddr", + [FAULT_BLKADDR_CONSISTENCE] = "inconsistent blkaddr", + [FAULT_NO_SEGMENT] = "no free segment", + [FAULT_INCONSISTENT_FOOTER] = "inconsistent footer", + [FAULT_TIMEOUT] = "timeout", + [FAULT_VMALLOC] = "vmalloc", +}; + +int f2fs_build_fault_attr(struct f2fs_sb_info *sbi, unsigned long rate, + unsigned long type, enum fault_option fo) +{ + struct f2fs_fault_info *ffi = &F2FS_OPTION(sbi).fault_info; + + if (fo & FAULT_ALL) { + memset(ffi, 0, sizeof(struct f2fs_fault_info)); + return 0; + } + + if (fo & FAULT_RATE) { + if (rate > INT_MAX) + return -EINVAL; + atomic_set(&ffi->inject_ops, 0); + ffi->inject_rate = (int)rate; + f2fs_info(sbi, "build fault injection rate: %lu", rate); + } + + if (fo & FAULT_TYPE) { + if (type >= BIT(FAULT_MAX)) + return -EINVAL; + ffi->inject_type = (unsigned int)type; + f2fs_info(sbi, "build fault injection type: 0x%lx", type); + } + + return 0; +} +#endif + +/* f2fs-wide shrinker description */ +static struct shrinker *f2fs_shrinker_info; + +static int __init f2fs_init_shrinker(void) +{ + f2fs_shrinker_info = shrinker_alloc(0, "f2fs-shrinker"); + if (!f2fs_shrinker_info) + return -ENOMEM; + + f2fs_shrinker_info->count_objects = f2fs_shrink_count; + f2fs_shrinker_info->scan_objects = f2fs_shrink_scan; + + shrinker_register(f2fs_shrinker_info); + + return 0; +} + +static void f2fs_exit_shrinker(void) +{ + shrinker_free(f2fs_shrinker_info); +} + enum { Opt_gc_background, Opt_disable_roll_forward, + Opt_norecovery, Opt_discard, Opt_noheap, - Opt_nouser_xattr, - Opt_noacl, + Opt_heap, + Opt_user_xattr, + Opt_acl, Opt_active_logs, Opt_disable_ext_identify, + Opt_inline_xattr, + Opt_inline_xattr_size, + Opt_inline_data, + Opt_inline_dentry, + Opt_flush_merge, + Opt_barrier, + Opt_fastboot, + Opt_extent_cache, + Opt_data_flush, + Opt_reserve_root, + Opt_reserve_node, + Opt_resgid, + Opt_resuid, + Opt_mode, + Opt_fault_injection, + Opt_fault_type, + Opt_lazytime, + Opt_quota, + Opt_usrquota, + Opt_grpquota, + Opt_prjquota, + Opt_usrjquota, + Opt_grpjquota, + Opt_prjjquota, + Opt_alloc, + Opt_fsync, + Opt_test_dummy_encryption, + Opt_inlinecrypt, + Opt_checkpoint_disable, + Opt_checkpoint_disable_cap, + Opt_checkpoint_disable_cap_perc, + Opt_checkpoint_enable, + Opt_checkpoint_merge, + Opt_compress_algorithm, + Opt_compress_log_size, + Opt_nocompress_extension, + Opt_compress_extension, + Opt_compress_chksum, + Opt_compress_mode, + Opt_compress_cache, + Opt_atgc, + Opt_gc_merge, + Opt_discard_unit, + Opt_memory_mode, + Opt_age_extent_cache, + Opt_errors, + Opt_nat_bits, + Opt_jqfmt, + Opt_checkpoint, + Opt_lookup_mode, Opt_err, }; -static match_table_t f2fs_tokens = { - {Opt_gc_background, "background_gc=%s"}, - {Opt_disable_roll_forward, "disable_roll_forward"}, - {Opt_discard, "discard"}, - {Opt_noheap, "no_heap"}, - {Opt_nouser_xattr, "nouser_xattr"}, - {Opt_noacl, "noacl"}, - {Opt_active_logs, "active_logs=%u"}, - {Opt_disable_ext_identify, "disable_ext_identify"}, +static const struct constant_table f2fs_param_background_gc[] = { + {"on", BGGC_MODE_ON}, + {"off", BGGC_MODE_OFF}, + {"sync", BGGC_MODE_SYNC}, + {} +}; + +static const struct constant_table f2fs_param_mode[] = { + {"adaptive", FS_MODE_ADAPTIVE}, + {"lfs", FS_MODE_LFS}, + {"fragment:segment", FS_MODE_FRAGMENT_SEG}, + {"fragment:block", FS_MODE_FRAGMENT_BLK}, + {} +}; + +static const struct constant_table f2fs_param_jqfmt[] = { + {"vfsold", QFMT_VFS_OLD}, + {"vfsv0", QFMT_VFS_V0}, + {"vfsv1", QFMT_VFS_V1}, + {} +}; + +static const struct constant_table f2fs_param_alloc_mode[] = { + {"default", ALLOC_MODE_DEFAULT}, + {"reuse", ALLOC_MODE_REUSE}, + {} +}; +static const struct constant_table f2fs_param_fsync_mode[] = { + {"posix", FSYNC_MODE_POSIX}, + {"strict", FSYNC_MODE_STRICT}, + {"nobarrier", FSYNC_MODE_NOBARRIER}, + {} +}; + +static const struct constant_table f2fs_param_compress_mode[] = { + {"fs", COMPR_MODE_FS}, + {"user", COMPR_MODE_USER}, + {} +}; + +static const struct constant_table f2fs_param_discard_unit[] = { + {"block", DISCARD_UNIT_BLOCK}, + {"segment", DISCARD_UNIT_SEGMENT}, + {"section", DISCARD_UNIT_SECTION}, + {} +}; + +static const struct constant_table f2fs_param_memory_mode[] = { + {"normal", MEMORY_MODE_NORMAL}, + {"low", MEMORY_MODE_LOW}, + {} +}; + +static const struct constant_table f2fs_param_errors[] = { + {"remount-ro", MOUNT_ERRORS_READONLY}, + {"continue", MOUNT_ERRORS_CONTINUE}, + {"panic", MOUNT_ERRORS_PANIC}, + {} +}; + +static const struct constant_table f2fs_param_lookup_mode[] = { + {"perf", LOOKUP_PERF}, + {"compat", LOOKUP_COMPAT}, + {"auto", LOOKUP_AUTO}, + {} +}; + +static const struct fs_parameter_spec f2fs_param_specs[] = { + fsparam_enum("background_gc", Opt_gc_background, f2fs_param_background_gc), + fsparam_flag("disable_roll_forward", Opt_disable_roll_forward), + fsparam_flag("norecovery", Opt_norecovery), + fsparam_flag_no("discard", Opt_discard), + fsparam_flag("no_heap", Opt_noheap), + fsparam_flag("heap", Opt_heap), + fsparam_flag_no("user_xattr", Opt_user_xattr), + fsparam_flag_no("acl", Opt_acl), + fsparam_s32("active_logs", Opt_active_logs), + fsparam_flag("disable_ext_identify", Opt_disable_ext_identify), + fsparam_flag_no("inline_xattr", Opt_inline_xattr), + fsparam_s32("inline_xattr_size", Opt_inline_xattr_size), + fsparam_flag_no("inline_data", Opt_inline_data), + fsparam_flag_no("inline_dentry", Opt_inline_dentry), + fsparam_flag_no("flush_merge", Opt_flush_merge), + fsparam_flag_no("barrier", Opt_barrier), + fsparam_flag("fastboot", Opt_fastboot), + fsparam_flag_no("extent_cache", Opt_extent_cache), + fsparam_flag("data_flush", Opt_data_flush), + fsparam_u32("reserve_root", Opt_reserve_root), + fsparam_u32("reserve_node", Opt_reserve_node), + fsparam_gid("resgid", Opt_resgid), + fsparam_uid("resuid", Opt_resuid), + fsparam_enum("mode", Opt_mode, f2fs_param_mode), + fsparam_s32("fault_injection", Opt_fault_injection), + fsparam_u32("fault_type", Opt_fault_type), + fsparam_flag_no("lazytime", Opt_lazytime), + fsparam_flag_no("quota", Opt_quota), + fsparam_flag("usrquota", Opt_usrquota), + fsparam_flag("grpquota", Opt_grpquota), + fsparam_flag("prjquota", Opt_prjquota), + fsparam_string_empty("usrjquota", Opt_usrjquota), + fsparam_string_empty("grpjquota", Opt_grpjquota), + fsparam_string_empty("prjjquota", Opt_prjjquota), + fsparam_flag("nat_bits", Opt_nat_bits), + fsparam_enum("jqfmt", Opt_jqfmt, f2fs_param_jqfmt), + fsparam_enum("alloc_mode", Opt_alloc, f2fs_param_alloc_mode), + fsparam_enum("fsync_mode", Opt_fsync, f2fs_param_fsync_mode), + fsparam_string("test_dummy_encryption", Opt_test_dummy_encryption), + fsparam_flag("test_dummy_encryption", Opt_test_dummy_encryption), + fsparam_flag("inlinecrypt", Opt_inlinecrypt), + fsparam_string("checkpoint", Opt_checkpoint), + fsparam_flag_no("checkpoint_merge", Opt_checkpoint_merge), + fsparam_string("compress_algorithm", Opt_compress_algorithm), + fsparam_u32("compress_log_size", Opt_compress_log_size), + fsparam_string("compress_extension", Opt_compress_extension), + fsparam_string("nocompress_extension", Opt_nocompress_extension), + fsparam_flag("compress_chksum", Opt_compress_chksum), + fsparam_enum("compress_mode", Opt_compress_mode, f2fs_param_compress_mode), + fsparam_flag("compress_cache", Opt_compress_cache), + fsparam_flag("atgc", Opt_atgc), + fsparam_flag_no("gc_merge", Opt_gc_merge), + fsparam_enum("discard_unit", Opt_discard_unit, f2fs_param_discard_unit), + fsparam_enum("memory", Opt_memory_mode, f2fs_param_memory_mode), + fsparam_flag("age_extent_cache", Opt_age_extent_cache), + fsparam_enum("errors", Opt_errors, f2fs_param_errors), + fsparam_enum("lookup_mode", Opt_lookup_mode, f2fs_param_lookup_mode), + {} +}; + +/* Resort to a match_table for this interestingly formatted option */ +static match_table_t f2fs_checkpoint_tokens = { + {Opt_checkpoint_disable, "disable"}, + {Opt_checkpoint_disable_cap, "disable:%u"}, + {Opt_checkpoint_disable_cap_perc, "disable:%u%%"}, + {Opt_checkpoint_enable, "enable"}, {Opt_err, NULL}, }; -void f2fs_msg(struct super_block *sb, const char *level, const char *fmt, ...) +#define F2FS_SPEC_background_gc (1 << 0) +#define F2FS_SPEC_inline_xattr_size (1 << 1) +#define F2FS_SPEC_active_logs (1 << 2) +#define F2FS_SPEC_reserve_root (1 << 3) +#define F2FS_SPEC_resgid (1 << 4) +#define F2FS_SPEC_resuid (1 << 5) +#define F2FS_SPEC_mode (1 << 6) +#define F2FS_SPEC_fault_injection (1 << 7) +#define F2FS_SPEC_fault_type (1 << 8) +#define F2FS_SPEC_jqfmt (1 << 9) +#define F2FS_SPEC_alloc_mode (1 << 10) +#define F2FS_SPEC_fsync_mode (1 << 11) +#define F2FS_SPEC_checkpoint_disable_cap (1 << 12) +#define F2FS_SPEC_checkpoint_disable_cap_perc (1 << 13) +#define F2FS_SPEC_compress_level (1 << 14) +#define F2FS_SPEC_compress_algorithm (1 << 15) +#define F2FS_SPEC_compress_log_size (1 << 16) +#define F2FS_SPEC_compress_extension (1 << 17) +#define F2FS_SPEC_nocompress_extension (1 << 18) +#define F2FS_SPEC_compress_chksum (1 << 19) +#define F2FS_SPEC_compress_mode (1 << 20) +#define F2FS_SPEC_discard_unit (1 << 21) +#define F2FS_SPEC_memory_mode (1 << 22) +#define F2FS_SPEC_errors (1 << 23) +#define F2FS_SPEC_lookup_mode (1 << 24) +#define F2FS_SPEC_reserve_node (1 << 25) + +struct f2fs_fs_context { + struct f2fs_mount_info info; + unsigned long long opt_mask; /* Bits changed */ + unsigned int spec_mask; + unsigned short qname_mask; +}; + +#define F2FS_CTX_INFO(ctx) ((ctx)->info) + +static inline void ctx_set_opt(struct f2fs_fs_context *ctx, + enum f2fs_mount_opt flag) +{ + ctx->info.opt |= BIT(flag); + ctx->opt_mask |= BIT(flag); +} + +static inline void ctx_clear_opt(struct f2fs_fs_context *ctx, + enum f2fs_mount_opt flag) +{ + ctx->info.opt &= ~BIT(flag); + ctx->opt_mask |= BIT(flag); +} + +static inline bool ctx_test_opt(struct f2fs_fs_context *ctx, + enum f2fs_mount_opt flag) +{ + return ctx->info.opt & BIT(flag); +} + +void f2fs_printk(struct f2fs_sb_info *sbi, bool limit_rate, + const char *fmt, ...) { struct va_format vaf; va_list args; + int level; va_start(args, fmt); - vaf.fmt = fmt; + + level = printk_get_level(fmt); + vaf.fmt = printk_skip_level(fmt); vaf.va = &args; - printk("%sF2FS-fs (%s): %pV\n", level, sb->s_id, &vaf); + if (limit_rate) + if (sbi) + printk_ratelimited("%c%cF2FS-fs (%s): %pV\n", + KERN_SOH_ASCII, level, sbi->sb->s_id, &vaf); + else + printk_ratelimited("%c%cF2FS-fs: %pV\n", + KERN_SOH_ASCII, level, &vaf); + else + if (sbi) + printk("%c%cF2FS-fs (%s): %pV\n", + KERN_SOH_ASCII, level, sbi->sb->s_id, &vaf); + else + printk("%c%cF2FS-fs: %pV\n", + KERN_SOH_ASCII, level, &vaf); + va_end(args); } +#if IS_ENABLED(CONFIG_UNICODE) +static const struct f2fs_sb_encodings { + __u16 magic; + char *name; + unsigned int version; +} f2fs_sb_encoding_map[] = { + {F2FS_ENC_UTF8_12_1, "utf8", UNICODE_AGE(12, 1, 0)}, +}; + +static const struct f2fs_sb_encodings * +f2fs_sb_read_encoding(const struct f2fs_super_block *sb) +{ + __u16 magic = le16_to_cpu(sb->s_encoding); + int i; + + for (i = 0; i < ARRAY_SIZE(f2fs_sb_encoding_map); i++) + if (magic == f2fs_sb_encoding_map[i].magic) + return &f2fs_sb_encoding_map[i]; + + return NULL; +} + +struct kmem_cache *f2fs_cf_name_slab; +static int __init f2fs_create_casefold_cache(void) +{ + f2fs_cf_name_slab = f2fs_kmem_cache_create("f2fs_casefolded_name", + F2FS_NAME_LEN); + return f2fs_cf_name_slab ? 0 : -ENOMEM; +} + +static void f2fs_destroy_casefold_cache(void) +{ + kmem_cache_destroy(f2fs_cf_name_slab); +} +#else +static int __init f2fs_create_casefold_cache(void) { return 0; } +static void f2fs_destroy_casefold_cache(void) { } +#endif + +static inline void limit_reserve_root(struct f2fs_sb_info *sbi) +{ + block_t block_limit = min((sbi->user_block_count >> 3), + sbi->user_block_count - sbi->reserved_blocks); + block_t node_limit = sbi->total_node_count >> 3; + + /* limit is 12.5% */ + if (test_opt(sbi, RESERVE_ROOT) && + F2FS_OPTION(sbi).root_reserved_blocks > block_limit) { + F2FS_OPTION(sbi).root_reserved_blocks = block_limit; + f2fs_info(sbi, "Reduce reserved blocks for root = %u", + F2FS_OPTION(sbi).root_reserved_blocks); + } + if (test_opt(sbi, RESERVE_NODE) && + F2FS_OPTION(sbi).root_reserved_nodes > node_limit) { + F2FS_OPTION(sbi).root_reserved_nodes = node_limit; + f2fs_info(sbi, "Reduce reserved nodes for root = %u", + F2FS_OPTION(sbi).root_reserved_nodes); + } + if (!test_opt(sbi, RESERVE_ROOT) && !test_opt(sbi, RESERVE_NODE) && + (!uid_eq(F2FS_OPTION(sbi).s_resuid, + make_kuid(&init_user_ns, F2FS_DEF_RESUID)) || + !gid_eq(F2FS_OPTION(sbi).s_resgid, + make_kgid(&init_user_ns, F2FS_DEF_RESGID)))) + f2fs_info(sbi, "Ignore s_resuid=%u, s_resgid=%u w/o reserve_root" + " and reserve_node", + from_kuid_munged(&init_user_ns, + F2FS_OPTION(sbi).s_resuid), + from_kgid_munged(&init_user_ns, + F2FS_OPTION(sbi).s_resgid)); +} + +static inline void adjust_unusable_cap_perc(struct f2fs_sb_info *sbi) +{ + if (!F2FS_OPTION(sbi).unusable_cap_perc) + return; + + if (F2FS_OPTION(sbi).unusable_cap_perc == 100) + F2FS_OPTION(sbi).unusable_cap = sbi->user_block_count; + else + F2FS_OPTION(sbi).unusable_cap = (sbi->user_block_count / 100) * + F2FS_OPTION(sbi).unusable_cap_perc; + + f2fs_info(sbi, "Adjust unusable cap for checkpoint=disable = %u / %u%%", + F2FS_OPTION(sbi).unusable_cap, + F2FS_OPTION(sbi).unusable_cap_perc); +} + static void init_once(void *foo) { struct f2fs_inode_info *fi = (struct f2fs_inode_info *) foo; inode_init_once(&fi->vfs_inode); +#ifdef CONFIG_FS_ENCRYPTION + fi->i_crypt_info = NULL; +#endif +#ifdef CONFIG_FS_VERITY + fi->i_verity_info = NULL; +#endif } -static int parse_options(struct super_block *sb, char *options) +#ifdef CONFIG_QUOTA +static const char * const quotatypes[] = INITQFNAMES; +#define QTYPE2NAME(t) (quotatypes[t]) +/* + * Note the name of the specified quota file. + */ +static int f2fs_note_qf_name(struct fs_context *fc, int qtype, + struct fs_parameter *param) { - struct f2fs_sb_info *sbi = F2FS_SB(sb); - substring_t args[MAX_OPT_ARGS]; - char *p, *name; - int arg = 0; + struct f2fs_fs_context *ctx = fc->fs_private; + char *qname; - if (!options) + if (param->size < 1) { + f2fs_err(NULL, "Missing quota name"); + return -EINVAL; + } + if (strchr(param->string, '/')) { + f2fs_err(NULL, "quotafile must be on filesystem root"); + return -EINVAL; + } + if (ctx->info.s_qf_names[qtype]) { + if (strcmp(ctx->info.s_qf_names[qtype], param->string) != 0) { + f2fs_err(NULL, "Quota file already specified"); + return -EINVAL; + } return 0; + } + + qname = kmemdup_nul(param->string, param->size, GFP_KERNEL); + if (!qname) { + f2fs_err(NULL, "Not enough memory for storing quotafile name"); + return -ENOMEM; + } + F2FS_CTX_INFO(ctx).s_qf_names[qtype] = qname; + ctx->qname_mask |= 1 << qtype; + return 0; +} + +/* + * Clear the name of the specified quota file. + */ +static int f2fs_unnote_qf_name(struct fs_context *fc, int qtype) +{ + struct f2fs_fs_context *ctx = fc->fs_private; + + kfree(ctx->info.s_qf_names[qtype]); + ctx->info.s_qf_names[qtype] = NULL; + ctx->qname_mask |= 1 << qtype; + return 0; +} + +static void f2fs_unnote_qf_name_all(struct fs_context *fc) +{ + int i; - while ((p = strsep(&options, ",")) != NULL) { - int token; - if (!*p) + for (i = 0; i < MAXQUOTAS; i++) + f2fs_unnote_qf_name(fc, i); +} +#endif + +static int f2fs_parse_test_dummy_encryption(const struct fs_parameter *param, + struct f2fs_fs_context *ctx) +{ + int err; + + if (!IS_ENABLED(CONFIG_FS_ENCRYPTION)) { + f2fs_warn(NULL, "test_dummy_encryption option not supported"); + return -EINVAL; + } + err = fscrypt_parse_test_dummy_encryption(param, + &ctx->info.dummy_enc_policy); + if (err) { + if (err == -EINVAL) + f2fs_warn(NULL, "Value of option \"%s\" is unrecognized", + param->key); + else if (err == -EEXIST) + f2fs_warn(NULL, "Conflicting test_dummy_encryption options"); + else + f2fs_warn(NULL, "Error processing option \"%s\" [%d]", + param->key, err); + return -EINVAL; + } + return 0; +} + +#ifdef CONFIG_F2FS_FS_COMPRESSION +static bool is_compress_extension_exist(struct f2fs_mount_info *info, + const char *new_ext, bool is_ext) +{ + unsigned char (*ext)[F2FS_EXTENSION_LEN]; + int ext_cnt; + int i; + + if (is_ext) { + ext = info->extensions; + ext_cnt = info->compress_ext_cnt; + } else { + ext = info->noextensions; + ext_cnt = info->nocompress_ext_cnt; + } + + for (i = 0; i < ext_cnt; i++) { + if (!strcasecmp(new_ext, ext[i])) + return true; + } + + return false; +} + +/* + * 1. The same extension name cannot not appear in both compress and non-compress extension + * at the same time. + * 2. If the compress extension specifies all files, the types specified by the non-compress + * extension will be treated as special cases and will not be compressed. + * 3. Don't allow the non-compress extension specifies all files. + */ +static int f2fs_test_compress_extension(unsigned char (*noext)[F2FS_EXTENSION_LEN], + int noext_cnt, + unsigned char (*ext)[F2FS_EXTENSION_LEN], + int ext_cnt) +{ + int index = 0, no_index = 0; + + if (!noext_cnt) + return 0; + + for (no_index = 0; no_index < noext_cnt; no_index++) { + if (strlen(noext[no_index]) == 0) continue; + if (!strcasecmp("*", noext[no_index])) { + f2fs_info(NULL, "Don't allow the nocompress extension specifies all files"); + return -EINVAL; + } + for (index = 0; index < ext_cnt; index++) { + if (strlen(ext[index]) == 0) + continue; + if (!strcasecmp(ext[index], noext[no_index])) { + f2fs_info(NULL, "Don't allow the same extension %s appear in both compress and nocompress extension", + ext[index]); + return -EINVAL; + } + } + } + return 0; +} + +#ifdef CONFIG_F2FS_FS_LZ4 +static int f2fs_set_lz4hc_level(struct f2fs_fs_context *ctx, const char *str) +{ +#ifdef CONFIG_F2FS_FS_LZ4HC + unsigned int level; + + if (strlen(str) == 3) { + F2FS_CTX_INFO(ctx).compress_level = 0; + ctx->spec_mask |= F2FS_SPEC_compress_level; + return 0; + } + + str += 3; + + if (str[0] != ':') { + f2fs_info(NULL, "wrong format, e.g. <alg_name>:<compr_level>"); + return -EINVAL; + } + if (kstrtouint(str + 1, 10, &level)) + return -EINVAL; + + if (!f2fs_is_compress_level_valid(COMPRESS_LZ4, level)) { + f2fs_info(NULL, "invalid lz4hc compress level: %d", level); + return -EINVAL; + } + + F2FS_CTX_INFO(ctx).compress_level = level; + ctx->spec_mask |= F2FS_SPEC_compress_level; + return 0; +#else + if (strlen(str) == 3) { + F2FS_CTX_INFO(ctx).compress_level = 0; + ctx->spec_mask |= F2FS_SPEC_compress_level; + return 0; + } + f2fs_info(NULL, "kernel doesn't support lz4hc compression"); + return -EINVAL; +#endif +} +#endif + +#ifdef CONFIG_F2FS_FS_ZSTD +static int f2fs_set_zstd_level(struct f2fs_fs_context *ctx, const char *str) +{ + int level; + int len = 4; + + if (strlen(str) == len) { + F2FS_CTX_INFO(ctx).compress_level = F2FS_ZSTD_DEFAULT_CLEVEL; + ctx->spec_mask |= F2FS_SPEC_compress_level; + return 0; + } + + str += len; + + if (str[0] != ':') { + f2fs_info(NULL, "wrong format, e.g. <alg_name>:<compr_level>"); + return -EINVAL; + } + if (kstrtoint(str + 1, 10, &level)) + return -EINVAL; + + /* f2fs does not support negative compress level now */ + if (level < 0) { + f2fs_info(NULL, "do not support negative compress level: %d", level); + return -ERANGE; + } + + if (!f2fs_is_compress_level_valid(COMPRESS_ZSTD, level)) { + f2fs_info(NULL, "invalid zstd compress level: %d", level); + return -EINVAL; + } + + F2FS_CTX_INFO(ctx).compress_level = level; + ctx->spec_mask |= F2FS_SPEC_compress_level; + return 0; +} +#endif +#endif + +static int f2fs_parse_param(struct fs_context *fc, struct fs_parameter *param) +{ + struct f2fs_fs_context *ctx = fc->fs_private; +#ifdef CONFIG_F2FS_FS_COMPRESSION + unsigned char (*ext)[F2FS_EXTENSION_LEN]; + unsigned char (*noext)[F2FS_EXTENSION_LEN]; + int ext_cnt, noext_cnt; + char *name; +#endif + substring_t args[MAX_OPT_ARGS]; + struct fs_parse_result result; + int token, ret, arg; + + token = fs_parse(fc, f2fs_param_specs, param, &result); + if (token < 0) + return token; + + switch (token) { + case Opt_gc_background: + F2FS_CTX_INFO(ctx).bggc_mode = result.uint_32; + ctx->spec_mask |= F2FS_SPEC_background_gc; + break; + case Opt_disable_roll_forward: + ctx_set_opt(ctx, F2FS_MOUNT_DISABLE_ROLL_FORWARD); + break; + case Opt_norecovery: + /* requires ro mount, checked in f2fs_validate_options */ + ctx_set_opt(ctx, F2FS_MOUNT_NORECOVERY); + break; + case Opt_discard: + if (result.negated) + ctx_clear_opt(ctx, F2FS_MOUNT_DISCARD); + else + ctx_set_opt(ctx, F2FS_MOUNT_DISCARD); + break; + case Opt_noheap: + case Opt_heap: + f2fs_warn(NULL, "heap/no_heap options were deprecated"); + break; +#ifdef CONFIG_F2FS_FS_XATTR + case Opt_user_xattr: + if (result.negated) + ctx_clear_opt(ctx, F2FS_MOUNT_XATTR_USER); + else + ctx_set_opt(ctx, F2FS_MOUNT_XATTR_USER); + break; + case Opt_inline_xattr: + if (result.negated) + ctx_clear_opt(ctx, F2FS_MOUNT_INLINE_XATTR); + else + ctx_set_opt(ctx, F2FS_MOUNT_INLINE_XATTR); + break; + case Opt_inline_xattr_size: + if (result.int_32 < MIN_INLINE_XATTR_SIZE || + result.int_32 > MAX_INLINE_XATTR_SIZE) { + f2fs_err(NULL, "inline xattr size is out of range: %u ~ %u", + (u32)MIN_INLINE_XATTR_SIZE, (u32)MAX_INLINE_XATTR_SIZE); + return -EINVAL; + } + ctx_set_opt(ctx, F2FS_MOUNT_INLINE_XATTR_SIZE); + F2FS_CTX_INFO(ctx).inline_xattr_size = result.int_32; + ctx->spec_mask |= F2FS_SPEC_inline_xattr_size; + break; +#else + case Opt_user_xattr: + case Opt_inline_xattr: + case Opt_inline_xattr_size: + f2fs_info(NULL, "%s options not supported", param->key); + break; +#endif +#ifdef CONFIG_F2FS_FS_POSIX_ACL + case Opt_acl: + if (result.negated) + ctx_clear_opt(ctx, F2FS_MOUNT_POSIX_ACL); + else + ctx_set_opt(ctx, F2FS_MOUNT_POSIX_ACL); + break; +#else + case Opt_acl: + f2fs_info(NULL, "%s options not supported", param->key); + break; +#endif + case Opt_active_logs: + if (result.int_32 != 2 && result.int_32 != 4 && + result.int_32 != NR_CURSEG_PERSIST_TYPE) + return -EINVAL; + ctx->spec_mask |= F2FS_SPEC_active_logs; + F2FS_CTX_INFO(ctx).active_logs = result.int_32; + break; + case Opt_disable_ext_identify: + ctx_set_opt(ctx, F2FS_MOUNT_DISABLE_EXT_IDENTIFY); + break; + case Opt_inline_data: + if (result.negated) + ctx_clear_opt(ctx, F2FS_MOUNT_INLINE_DATA); + else + ctx_set_opt(ctx, F2FS_MOUNT_INLINE_DATA); + break; + case Opt_inline_dentry: + if (result.negated) + ctx_clear_opt(ctx, F2FS_MOUNT_INLINE_DENTRY); + else + ctx_set_opt(ctx, F2FS_MOUNT_INLINE_DENTRY); + break; + case Opt_flush_merge: + if (result.negated) + ctx_clear_opt(ctx, F2FS_MOUNT_FLUSH_MERGE); + else + ctx_set_opt(ctx, F2FS_MOUNT_FLUSH_MERGE); + break; + case Opt_barrier: + if (result.negated) + ctx_set_opt(ctx, F2FS_MOUNT_NOBARRIER); + else + ctx_clear_opt(ctx, F2FS_MOUNT_NOBARRIER); + break; + case Opt_fastboot: + ctx_set_opt(ctx, F2FS_MOUNT_FASTBOOT); + break; + case Opt_extent_cache: + if (result.negated) + ctx_clear_opt(ctx, F2FS_MOUNT_READ_EXTENT_CACHE); + else + ctx_set_opt(ctx, F2FS_MOUNT_READ_EXTENT_CACHE); + break; + case Opt_data_flush: + ctx_set_opt(ctx, F2FS_MOUNT_DATA_FLUSH); + break; + case Opt_reserve_root: + ctx_set_opt(ctx, F2FS_MOUNT_RESERVE_ROOT); + F2FS_CTX_INFO(ctx).root_reserved_blocks = result.uint_32; + ctx->spec_mask |= F2FS_SPEC_reserve_root; + break; + case Opt_reserve_node: + ctx_set_opt(ctx, F2FS_MOUNT_RESERVE_NODE); + F2FS_CTX_INFO(ctx).root_reserved_nodes = result.uint_32; + ctx->spec_mask |= F2FS_SPEC_reserve_node; + break; + case Opt_resuid: + F2FS_CTX_INFO(ctx).s_resuid = result.uid; + ctx->spec_mask |= F2FS_SPEC_resuid; + break; + case Opt_resgid: + F2FS_CTX_INFO(ctx).s_resgid = result.gid; + ctx->spec_mask |= F2FS_SPEC_resgid; + break; + case Opt_mode: + F2FS_CTX_INFO(ctx).fs_mode = result.uint_32; + ctx->spec_mask |= F2FS_SPEC_mode; + break; +#ifdef CONFIG_F2FS_FAULT_INJECTION + case Opt_fault_injection: + F2FS_CTX_INFO(ctx).fault_info.inject_rate = result.int_32; + ctx->spec_mask |= F2FS_SPEC_fault_injection; + ctx_set_opt(ctx, F2FS_MOUNT_FAULT_INJECTION); + break; + + case Opt_fault_type: + if (result.uint_32 > BIT(FAULT_MAX)) + return -EINVAL; + F2FS_CTX_INFO(ctx).fault_info.inject_type = result.uint_32; + ctx->spec_mask |= F2FS_SPEC_fault_type; + ctx_set_opt(ctx, F2FS_MOUNT_FAULT_INJECTION); + break; +#else + case Opt_fault_injection: + case Opt_fault_type: + f2fs_info(NULL, "%s options not supported", param->key); + break; +#endif + case Opt_lazytime: + if (result.negated) + ctx_clear_opt(ctx, F2FS_MOUNT_LAZYTIME); + else + ctx_set_opt(ctx, F2FS_MOUNT_LAZYTIME); + break; +#ifdef CONFIG_QUOTA + case Opt_quota: + if (result.negated) { + ctx_clear_opt(ctx, F2FS_MOUNT_QUOTA); + ctx_clear_opt(ctx, F2FS_MOUNT_USRQUOTA); + ctx_clear_opt(ctx, F2FS_MOUNT_GRPQUOTA); + ctx_clear_opt(ctx, F2FS_MOUNT_PRJQUOTA); + } else + ctx_set_opt(ctx, F2FS_MOUNT_USRQUOTA); + break; + case Opt_usrquota: + ctx_set_opt(ctx, F2FS_MOUNT_USRQUOTA); + break; + case Opt_grpquota: + ctx_set_opt(ctx, F2FS_MOUNT_GRPQUOTA); + break; + case Opt_prjquota: + ctx_set_opt(ctx, F2FS_MOUNT_PRJQUOTA); + break; + case Opt_usrjquota: + if (!*param->string) + ret = f2fs_unnote_qf_name(fc, USRQUOTA); + else + ret = f2fs_note_qf_name(fc, USRQUOTA, param); + if (ret) + return ret; + break; + case Opt_grpjquota: + if (!*param->string) + ret = f2fs_unnote_qf_name(fc, GRPQUOTA); + else + ret = f2fs_note_qf_name(fc, GRPQUOTA, param); + if (ret) + return ret; + break; + case Opt_prjjquota: + if (!*param->string) + ret = f2fs_unnote_qf_name(fc, PRJQUOTA); + else + ret = f2fs_note_qf_name(fc, PRJQUOTA, param); + if (ret) + return ret; + break; + case Opt_jqfmt: + F2FS_CTX_INFO(ctx).s_jquota_fmt = result.int_32; + ctx->spec_mask |= F2FS_SPEC_jqfmt; + break; +#else + case Opt_quota: + case Opt_usrquota: + case Opt_grpquota: + case Opt_prjquota: + case Opt_usrjquota: + case Opt_grpjquota: + case Opt_prjjquota: + f2fs_info(NULL, "quota operations not supported"); + break; +#endif + case Opt_alloc: + F2FS_CTX_INFO(ctx).alloc_mode = result.uint_32; + ctx->spec_mask |= F2FS_SPEC_alloc_mode; + break; + case Opt_fsync: + F2FS_CTX_INFO(ctx).fsync_mode = result.uint_32; + ctx->spec_mask |= F2FS_SPEC_fsync_mode; + break; + case Opt_test_dummy_encryption: + ret = f2fs_parse_test_dummy_encryption(param, ctx); + if (ret) + return ret; + break; + case Opt_inlinecrypt: +#ifdef CONFIG_FS_ENCRYPTION_INLINE_CRYPT + ctx_set_opt(ctx, F2FS_MOUNT_INLINECRYPT); +#else + f2fs_info(NULL, "inline encryption not supported"); +#endif + break; + case Opt_checkpoint: /* * Initialize args struct so we know whether arg was * found; some options take optional arguments. */ - args[0].to = args[0].from = NULL; - token = match_token(p, f2fs_tokens, args); + args[0].from = args[0].to = NULL; + arg = 0; + /* revert to match_table for checkpoint= options */ + token = match_token(param->string, f2fs_checkpoint_tokens, args); switch (token) { - case Opt_gc_background: - name = match_strdup(&args[0]); - - if (!name) - return -ENOMEM; - if (!strncmp(name, "on", 2)) - set_opt(sbi, BG_GC); - else if (!strncmp(name, "off", 3)) - clear_opt(sbi, BG_GC); - else { - kfree(name); + case Opt_checkpoint_disable_cap_perc: + if (args->from && match_int(args, &arg)) return -EINVAL; - } - kfree(name); - break; - case Opt_disable_roll_forward: - set_opt(sbi, DISABLE_ROLL_FORWARD); + if (arg < 0 || arg > 100) + return -EINVAL; + F2FS_CTX_INFO(ctx).unusable_cap_perc = arg; + ctx->spec_mask |= F2FS_SPEC_checkpoint_disable_cap_perc; + ctx_set_opt(ctx, F2FS_MOUNT_DISABLE_CHECKPOINT); break; - case Opt_discard: - set_opt(sbi, DISCARD); + case Opt_checkpoint_disable_cap: + if (args->from && match_int(args, &arg)) + return -EINVAL; + F2FS_CTX_INFO(ctx).unusable_cap = arg; + ctx->spec_mask |= F2FS_SPEC_checkpoint_disable_cap; + ctx_set_opt(ctx, F2FS_MOUNT_DISABLE_CHECKPOINT); break; - case Opt_noheap: - set_opt(sbi, NOHEAP); + case Opt_checkpoint_disable: + ctx_set_opt(ctx, F2FS_MOUNT_DISABLE_CHECKPOINT); break; -#ifdef CONFIG_F2FS_FS_XATTR - case Opt_nouser_xattr: - clear_opt(sbi, XATTR_USER); + case Opt_checkpoint_enable: + F2FS_CTX_INFO(ctx).unusable_cap_perc = 0; + ctx->spec_mask |= F2FS_SPEC_checkpoint_disable_cap_perc; + F2FS_CTX_INFO(ctx).unusable_cap = 0; + ctx->spec_mask |= F2FS_SPEC_checkpoint_disable_cap; + ctx_clear_opt(ctx, F2FS_MOUNT_DISABLE_CHECKPOINT); break; + default: + return -EINVAL; + } + break; + case Opt_checkpoint_merge: + if (result.negated) + ctx_clear_opt(ctx, F2FS_MOUNT_MERGE_CHECKPOINT); + else + ctx_set_opt(ctx, F2FS_MOUNT_MERGE_CHECKPOINT); + break; +#ifdef CONFIG_F2FS_FS_COMPRESSION + case Opt_compress_algorithm: + name = param->string; + if (!strcmp(name, "lzo")) { +#ifdef CONFIG_F2FS_FS_LZO + F2FS_CTX_INFO(ctx).compress_level = 0; + F2FS_CTX_INFO(ctx).compress_algorithm = COMPRESS_LZO; + ctx->spec_mask |= F2FS_SPEC_compress_level; + ctx->spec_mask |= F2FS_SPEC_compress_algorithm; #else - case Opt_nouser_xattr: - f2fs_msg(sb, KERN_INFO, - "nouser_xattr options not supported"); - break; + f2fs_info(NULL, "kernel doesn't support lzo compression"); #endif -#ifdef CONFIG_F2FS_FS_POSIX_ACL - case Opt_noacl: - clear_opt(sbi, POSIX_ACL); - break; + } else if (!strncmp(name, "lz4", 3)) { +#ifdef CONFIG_F2FS_FS_LZ4 + ret = f2fs_set_lz4hc_level(ctx, name); + if (ret) + return -EINVAL; + F2FS_CTX_INFO(ctx).compress_algorithm = COMPRESS_LZ4; + ctx->spec_mask |= F2FS_SPEC_compress_algorithm; #else - case Opt_noacl: - f2fs_msg(sb, KERN_INFO, "noacl options not supported"); - break; + f2fs_info(NULL, "kernel doesn't support lz4 compression"); #endif - case Opt_active_logs: - if (args->from && match_int(args, &arg)) - return -EINVAL; - if (arg != 2 && arg != 4 && arg != NR_CURSEG_TYPE) + } else if (!strncmp(name, "zstd", 4)) { +#ifdef CONFIG_F2FS_FS_ZSTD + ret = f2fs_set_zstd_level(ctx, name); + if (ret) return -EINVAL; - sbi->active_logs = arg; + F2FS_CTX_INFO(ctx).compress_algorithm = COMPRESS_ZSTD; + ctx->spec_mask |= F2FS_SPEC_compress_algorithm; +#else + f2fs_info(NULL, "kernel doesn't support zstd compression"); +#endif + } else if (!strcmp(name, "lzo-rle")) { +#ifdef CONFIG_F2FS_FS_LZORLE + F2FS_CTX_INFO(ctx).compress_level = 0; + F2FS_CTX_INFO(ctx).compress_algorithm = COMPRESS_LZORLE; + ctx->spec_mask |= F2FS_SPEC_compress_level; + ctx->spec_mask |= F2FS_SPEC_compress_algorithm; +#else + f2fs_info(NULL, "kernel doesn't support lzorle compression"); +#endif + } else + return -EINVAL; + break; + case Opt_compress_log_size: + if (result.uint_32 < MIN_COMPRESS_LOG_SIZE || + result.uint_32 > MAX_COMPRESS_LOG_SIZE) { + f2fs_err(NULL, + "Compress cluster log size is out of range"); + return -EINVAL; + } + F2FS_CTX_INFO(ctx).compress_log_size = result.uint_32; + ctx->spec_mask |= F2FS_SPEC_compress_log_size; + break; + case Opt_compress_extension: + name = param->string; + ext = F2FS_CTX_INFO(ctx).extensions; + ext_cnt = F2FS_CTX_INFO(ctx).compress_ext_cnt; + + if (strlen(name) >= F2FS_EXTENSION_LEN || + ext_cnt >= COMPRESS_EXT_NUM) { + f2fs_err(NULL, "invalid extension length/number"); + return -EINVAL; + } + + if (is_compress_extension_exist(&ctx->info, name, true)) break; - case Opt_disable_ext_identify: - set_opt(sbi, DISABLE_EXT_IDENTIFY); + + ret = strscpy(ext[ext_cnt], name, F2FS_EXTENSION_LEN); + if (ret < 0) + return ret; + F2FS_CTX_INFO(ctx).compress_ext_cnt++; + ctx->spec_mask |= F2FS_SPEC_compress_extension; + break; + case Opt_nocompress_extension: + name = param->string; + noext = F2FS_CTX_INFO(ctx).noextensions; + noext_cnt = F2FS_CTX_INFO(ctx).nocompress_ext_cnt; + + if (strlen(name) >= F2FS_EXTENSION_LEN || + noext_cnt >= COMPRESS_EXT_NUM) { + f2fs_err(NULL, "invalid extension length/number"); + return -EINVAL; + } + + if (is_compress_extension_exist(&ctx->info, name, false)) break; - default: - f2fs_msg(sb, KERN_ERR, - "Unrecognized mount option \"%s\" or missing value", - p); + + ret = strscpy(noext[noext_cnt], name, F2FS_EXTENSION_LEN); + if (ret < 0) + return ret; + F2FS_CTX_INFO(ctx).nocompress_ext_cnt++; + ctx->spec_mask |= F2FS_SPEC_nocompress_extension; + break; + case Opt_compress_chksum: + F2FS_CTX_INFO(ctx).compress_chksum = true; + ctx->spec_mask |= F2FS_SPEC_compress_chksum; + break; + case Opt_compress_mode: + F2FS_CTX_INFO(ctx).compress_mode = result.uint_32; + ctx->spec_mask |= F2FS_SPEC_compress_mode; + break; + case Opt_compress_cache: + ctx_set_opt(ctx, F2FS_MOUNT_COMPRESS_CACHE); + break; +#else + case Opt_compress_algorithm: + case Opt_compress_log_size: + case Opt_compress_extension: + case Opt_nocompress_extension: + case Opt_compress_chksum: + case Opt_compress_mode: + case Opt_compress_cache: + f2fs_info(NULL, "compression options not supported"); + break; +#endif + case Opt_atgc: + ctx_set_opt(ctx, F2FS_MOUNT_ATGC); + break; + case Opt_gc_merge: + if (result.negated) + ctx_clear_opt(ctx, F2FS_MOUNT_GC_MERGE); + else + ctx_set_opt(ctx, F2FS_MOUNT_GC_MERGE); + break; + case Opt_discard_unit: + F2FS_CTX_INFO(ctx).discard_unit = result.uint_32; + ctx->spec_mask |= F2FS_SPEC_discard_unit; + break; + case Opt_memory_mode: + F2FS_CTX_INFO(ctx).memory_mode = result.uint_32; + ctx->spec_mask |= F2FS_SPEC_memory_mode; + break; + case Opt_age_extent_cache: + ctx_set_opt(ctx, F2FS_MOUNT_AGE_EXTENT_CACHE); + break; + case Opt_errors: + F2FS_CTX_INFO(ctx).errors = result.uint_32; + ctx->spec_mask |= F2FS_SPEC_errors; + break; + case Opt_nat_bits: + ctx_set_opt(ctx, F2FS_MOUNT_NAT_BITS); + break; + case Opt_lookup_mode: + F2FS_CTX_INFO(ctx).lookup_mode = result.uint_32; + ctx->spec_mask |= F2FS_SPEC_lookup_mode; + break; + } + return 0; +} + +/* + * Check quota settings consistency. + */ +static int f2fs_check_quota_consistency(struct fs_context *fc, + struct super_block *sb) +{ + struct f2fs_sb_info *sbi = F2FS_SB(sb); + #ifdef CONFIG_QUOTA + struct f2fs_fs_context *ctx = fc->fs_private; + bool quota_feature = f2fs_sb_has_quota_ino(sbi); + bool quota_turnon = sb_any_quota_loaded(sb); + char *old_qname, *new_qname; + bool usr_qf_name, grp_qf_name, prj_qf_name, usrquota, grpquota, prjquota; + int i; + + /* + * We do the test below only for project quotas. 'usrquota' and + * 'grpquota' mount options are allowed even without quota feature + * to support legacy quotas in quota files. + */ + if (ctx_test_opt(ctx, F2FS_MOUNT_PRJQUOTA) && + !f2fs_sb_has_project_quota(sbi)) { + f2fs_err(sbi, "Project quota feature not enabled. Cannot enable project quota enforcement."); + return -EINVAL; + } + + if (ctx->qname_mask) { + for (i = 0; i < MAXQUOTAS; i++) { + if (!(ctx->qname_mask & (1 << i))) + continue; + + old_qname = F2FS_OPTION(sbi).s_qf_names[i]; + new_qname = F2FS_CTX_INFO(ctx).s_qf_names[i]; + if (quota_turnon && + !!old_qname != !!new_qname) + goto err_jquota_change; + + if (old_qname) { + if (!new_qname) { + f2fs_info(sbi, "remove qf_name %s", + old_qname); + continue; + } else if (strcmp(old_qname, new_qname) == 0) { + ctx->qname_mask &= ~(1 << i); + continue; + } + goto err_jquota_specified; + } + + if (quota_feature) { + f2fs_info(sbi, "QUOTA feature is enabled, so ignore qf_name"); + ctx->qname_mask &= ~(1 << i); + kfree(F2FS_CTX_INFO(ctx).s_qf_names[i]); + F2FS_CTX_INFO(ctx).s_qf_names[i] = NULL; + } + } + } + + /* Make sure we don't mix old and new quota format */ + usr_qf_name = F2FS_OPTION(sbi).s_qf_names[USRQUOTA] || + F2FS_CTX_INFO(ctx).s_qf_names[USRQUOTA]; + grp_qf_name = F2FS_OPTION(sbi).s_qf_names[GRPQUOTA] || + F2FS_CTX_INFO(ctx).s_qf_names[GRPQUOTA]; + prj_qf_name = F2FS_OPTION(sbi).s_qf_names[PRJQUOTA] || + F2FS_CTX_INFO(ctx).s_qf_names[PRJQUOTA]; + usrquota = test_opt(sbi, USRQUOTA) || + ctx_test_opt(ctx, F2FS_MOUNT_USRQUOTA); + grpquota = test_opt(sbi, GRPQUOTA) || + ctx_test_opt(ctx, F2FS_MOUNT_GRPQUOTA); + prjquota = test_opt(sbi, PRJQUOTA) || + ctx_test_opt(ctx, F2FS_MOUNT_PRJQUOTA); + + if (usr_qf_name) { + ctx_clear_opt(ctx, F2FS_MOUNT_USRQUOTA); + usrquota = false; + } + if (grp_qf_name) { + ctx_clear_opt(ctx, F2FS_MOUNT_GRPQUOTA); + grpquota = false; + } + if (prj_qf_name) { + ctx_clear_opt(ctx, F2FS_MOUNT_PRJQUOTA); + prjquota = false; + } + if (usr_qf_name || grp_qf_name || prj_qf_name) { + if (grpquota || usrquota || prjquota) { + f2fs_err(sbi, "old and new quota format mixing"); + return -EINVAL; + } + if (!(ctx->spec_mask & F2FS_SPEC_jqfmt || + F2FS_OPTION(sbi).s_jquota_fmt)) { + f2fs_err(sbi, "journaled quota format not specified"); + return -EINVAL; + } + } + return 0; + +err_jquota_change: + f2fs_err(sbi, "Cannot change journaled quota options when quota turned on"); + return -EINVAL; +err_jquota_specified: + f2fs_err(sbi, "%s quota file already specified", + QTYPE2NAME(i)); + return -EINVAL; + +#else + if (f2fs_readonly(sbi->sb)) + return 0; + if (f2fs_sb_has_quota_ino(sbi)) { + f2fs_info(sbi, "Filesystem with quota feature cannot be mounted RDWR without CONFIG_QUOTA"); + return -EINVAL; + } + if (f2fs_sb_has_project_quota(sbi)) { + f2fs_err(sbi, "Filesystem with project quota feature cannot be mounted RDWR without CONFIG_QUOTA"); + return -EINVAL; + } + + return 0; +#endif +} + +static int f2fs_check_test_dummy_encryption(struct fs_context *fc, + struct super_block *sb) +{ + struct f2fs_fs_context *ctx = fc->fs_private; + struct f2fs_sb_info *sbi = F2FS_SB(sb); + + if (!fscrypt_is_dummy_policy_set(&F2FS_CTX_INFO(ctx).dummy_enc_policy)) + return 0; + + if (!f2fs_sb_has_encrypt(sbi)) { + f2fs_err(sbi, "Encrypt feature is off"); + return -EINVAL; + } + + /* + * This mount option is just for testing, and it's not worthwhile to + * implement the extra complexity (e.g. RCU protection) that would be + * needed to allow it to be set or changed during remount. We do allow + * it to be specified during remount, but only if there is no change. + */ + if (fc->purpose == FS_CONTEXT_FOR_RECONFIGURE) { + if (fscrypt_dummy_policies_equal(&F2FS_OPTION(sbi).dummy_enc_policy, + &F2FS_CTX_INFO(ctx).dummy_enc_policy)) + return 0; + f2fs_warn(sbi, "Can't set or change test_dummy_encryption on remount"); + return -EINVAL; + } + return 0; +} + +static inline bool test_compression_spec(unsigned int mask) +{ + return mask & (F2FS_SPEC_compress_algorithm + | F2FS_SPEC_compress_log_size + | F2FS_SPEC_compress_extension + | F2FS_SPEC_nocompress_extension + | F2FS_SPEC_compress_chksum + | F2FS_SPEC_compress_mode); +} + +static inline void clear_compression_spec(struct f2fs_fs_context *ctx) +{ + ctx->spec_mask &= ~(F2FS_SPEC_compress_algorithm + | F2FS_SPEC_compress_log_size + | F2FS_SPEC_compress_extension + | F2FS_SPEC_nocompress_extension + | F2FS_SPEC_compress_chksum + | F2FS_SPEC_compress_mode); +} + +static int f2fs_check_compression(struct fs_context *fc, + struct super_block *sb) +{ +#ifdef CONFIG_F2FS_FS_COMPRESSION + struct f2fs_fs_context *ctx = fc->fs_private; + struct f2fs_sb_info *sbi = F2FS_SB(sb); + int i, cnt; + + if (!f2fs_sb_has_compression(sbi)) { + if (test_compression_spec(ctx->spec_mask) || + ctx_test_opt(ctx, F2FS_MOUNT_COMPRESS_CACHE)) + f2fs_info(sbi, "Image doesn't support compression"); + clear_compression_spec(ctx); + ctx->opt_mask &= ~BIT(F2FS_MOUNT_COMPRESS_CACHE); + return 0; + } + if (ctx->spec_mask & F2FS_SPEC_compress_extension) { + cnt = F2FS_CTX_INFO(ctx).compress_ext_cnt; + for (i = 0; i < F2FS_CTX_INFO(ctx).compress_ext_cnt; i++) { + if (is_compress_extension_exist(&F2FS_OPTION(sbi), + F2FS_CTX_INFO(ctx).extensions[i], true)) { + F2FS_CTX_INFO(ctx).extensions[i][0] = '\0'; + cnt--; + } + } + if (F2FS_OPTION(sbi).compress_ext_cnt + cnt > COMPRESS_EXT_NUM) { + f2fs_err(sbi, "invalid extension length/number"); return -EINVAL; } } + if (ctx->spec_mask & F2FS_SPEC_nocompress_extension) { + cnt = F2FS_CTX_INFO(ctx).nocompress_ext_cnt; + for (i = 0; i < F2FS_CTX_INFO(ctx).nocompress_ext_cnt; i++) { + if (is_compress_extension_exist(&F2FS_OPTION(sbi), + F2FS_CTX_INFO(ctx).noextensions[i], false)) { + F2FS_CTX_INFO(ctx).noextensions[i][0] = '\0'; + cnt--; + } + } + if (F2FS_OPTION(sbi).nocompress_ext_cnt + cnt > COMPRESS_EXT_NUM) { + f2fs_err(sbi, "invalid noextension length/number"); + return -EINVAL; + } + } + + if (f2fs_test_compress_extension(F2FS_CTX_INFO(ctx).noextensions, + F2FS_CTX_INFO(ctx).nocompress_ext_cnt, + F2FS_CTX_INFO(ctx).extensions, + F2FS_CTX_INFO(ctx).compress_ext_cnt)) { + f2fs_err(sbi, "new noextensions conflicts with new extensions"); + return -EINVAL; + } + if (f2fs_test_compress_extension(F2FS_CTX_INFO(ctx).noextensions, + F2FS_CTX_INFO(ctx).nocompress_ext_cnt, + F2FS_OPTION(sbi).extensions, + F2FS_OPTION(sbi).compress_ext_cnt)) { + f2fs_err(sbi, "new noextensions conflicts with old extensions"); + return -EINVAL; + } + if (f2fs_test_compress_extension(F2FS_OPTION(sbi).noextensions, + F2FS_OPTION(sbi).nocompress_ext_cnt, + F2FS_CTX_INFO(ctx).extensions, + F2FS_CTX_INFO(ctx).compress_ext_cnt)) { + f2fs_err(sbi, "new extensions conflicts with old noextensions"); + return -EINVAL; + } +#endif + return 0; +} + +static int f2fs_check_opt_consistency(struct fs_context *fc, + struct super_block *sb) +{ + struct f2fs_fs_context *ctx = fc->fs_private; + struct f2fs_sb_info *sbi = F2FS_SB(sb); + int err; + + if (ctx_test_opt(ctx, F2FS_MOUNT_NORECOVERY) && !f2fs_readonly(sb)) + return -EINVAL; + + if (f2fs_hw_should_discard(sbi) && + (ctx->opt_mask & BIT(F2FS_MOUNT_DISCARD)) && + !ctx_test_opt(ctx, F2FS_MOUNT_DISCARD)) { + f2fs_warn(sbi, "discard is required for zoned block devices"); + return -EINVAL; + } + + if (!f2fs_hw_support_discard(sbi) && + (ctx->opt_mask & BIT(F2FS_MOUNT_DISCARD)) && + ctx_test_opt(ctx, F2FS_MOUNT_DISCARD)) { + f2fs_warn(sbi, "device does not support discard"); + ctx_clear_opt(ctx, F2FS_MOUNT_DISCARD); + ctx->opt_mask &= ~BIT(F2FS_MOUNT_DISCARD); + } + + if (f2fs_sb_has_device_alias(sbi) && + (ctx->opt_mask & BIT(F2FS_MOUNT_READ_EXTENT_CACHE)) && + !ctx_test_opt(ctx, F2FS_MOUNT_READ_EXTENT_CACHE)) { + f2fs_err(sbi, "device aliasing requires extent cache"); + return -EINVAL; + } + + if (test_opt(sbi, RESERVE_ROOT) && + (ctx->opt_mask & BIT(F2FS_MOUNT_RESERVE_ROOT)) && + ctx_test_opt(ctx, F2FS_MOUNT_RESERVE_ROOT)) { + f2fs_info(sbi, "Preserve previous reserve_root=%u", + F2FS_OPTION(sbi).root_reserved_blocks); + ctx_clear_opt(ctx, F2FS_MOUNT_RESERVE_ROOT); + ctx->opt_mask &= ~BIT(F2FS_MOUNT_RESERVE_ROOT); + } + if (test_opt(sbi, RESERVE_NODE) && + (ctx->opt_mask & BIT(F2FS_MOUNT_RESERVE_NODE)) && + ctx_test_opt(ctx, F2FS_MOUNT_RESERVE_NODE)) { + f2fs_info(sbi, "Preserve previous reserve_node=%u", + F2FS_OPTION(sbi).root_reserved_nodes); + ctx_clear_opt(ctx, F2FS_MOUNT_RESERVE_NODE); + ctx->opt_mask &= ~BIT(F2FS_MOUNT_RESERVE_NODE); + } + + err = f2fs_check_test_dummy_encryption(fc, sb); + if (err) + return err; + + err = f2fs_check_compression(fc, sb); + if (err) + return err; + + err = f2fs_check_quota_consistency(fc, sb); + if (err) + return err; + + if (!IS_ENABLED(CONFIG_UNICODE) && f2fs_sb_has_casefold(sbi)) { + f2fs_err(sbi, + "Filesystem with casefold feature cannot be mounted without CONFIG_UNICODE"); + return -EINVAL; + } + + /* + * The BLKZONED feature indicates that the drive was formatted with + * zone alignment optimization. This is optional for host-aware + * devices, but mandatory for host-managed zoned block devices. + */ + if (f2fs_sb_has_blkzoned(sbi)) { + if (F2FS_CTX_INFO(ctx).bggc_mode == BGGC_MODE_OFF) { + f2fs_warn(sbi, "zoned devices need bggc"); + return -EINVAL; + } +#ifdef CONFIG_BLK_DEV_ZONED + if ((ctx->spec_mask & F2FS_SPEC_discard_unit) && + F2FS_CTX_INFO(ctx).discard_unit != DISCARD_UNIT_SECTION) { + f2fs_info(sbi, "Zoned block device doesn't need small discard, set discard_unit=section by default"); + F2FS_CTX_INFO(ctx).discard_unit = DISCARD_UNIT_SECTION; + } + + if ((ctx->spec_mask & F2FS_SPEC_mode) && + F2FS_CTX_INFO(ctx).fs_mode != FS_MODE_LFS) { + f2fs_info(sbi, "Only lfs mode is allowed with zoned block device feature"); + return -EINVAL; + } +#else + f2fs_err(sbi, "Zoned block device support is not enabled"); + return -EINVAL; +#endif + } + + if (ctx_test_opt(ctx, F2FS_MOUNT_INLINE_XATTR_SIZE)) { + if (!f2fs_sb_has_extra_attr(sbi) || + !f2fs_sb_has_flexible_inline_xattr(sbi)) { + f2fs_err(sbi, "extra_attr or flexible_inline_xattr feature is off"); + return -EINVAL; + } + if (!ctx_test_opt(ctx, F2FS_MOUNT_INLINE_XATTR) && !test_opt(sbi, INLINE_XATTR)) { + f2fs_err(sbi, "inline_xattr_size option should be set with inline_xattr option"); + return -EINVAL; + } + } + + if (ctx_test_opt(ctx, F2FS_MOUNT_ATGC) && + F2FS_CTX_INFO(ctx).fs_mode == FS_MODE_LFS) { + f2fs_err(sbi, "LFS is not compatible with ATGC"); + return -EINVAL; + } + + if (f2fs_is_readonly(sbi) && ctx_test_opt(ctx, F2FS_MOUNT_FLUSH_MERGE)) { + f2fs_err(sbi, "FLUSH_MERGE not compatible with readonly mode"); + return -EINVAL; + } + + if (f2fs_sb_has_readonly(sbi) && !f2fs_readonly(sbi->sb)) { + f2fs_err(sbi, "Allow to mount readonly mode only"); + return -EROFS; + } + return 0; +} + +static void f2fs_apply_quota_options(struct fs_context *fc, + struct super_block *sb) +{ +#ifdef CONFIG_QUOTA + struct f2fs_fs_context *ctx = fc->fs_private; + struct f2fs_sb_info *sbi = F2FS_SB(sb); + bool quota_feature = f2fs_sb_has_quota_ino(sbi); + char *qname; + int i; + + if (quota_feature) + return; + + for (i = 0; i < MAXQUOTAS; i++) { + if (!(ctx->qname_mask & (1 << i))) + continue; + + qname = F2FS_CTX_INFO(ctx).s_qf_names[i]; + if (qname) { + qname = kstrdup(F2FS_CTX_INFO(ctx).s_qf_names[i], + GFP_KERNEL | __GFP_NOFAIL); + set_opt(sbi, QUOTA); + } + F2FS_OPTION(sbi).s_qf_names[i] = qname; + } + + if (ctx->spec_mask & F2FS_SPEC_jqfmt) + F2FS_OPTION(sbi).s_jquota_fmt = F2FS_CTX_INFO(ctx).s_jquota_fmt; + + if (quota_feature && F2FS_OPTION(sbi).s_jquota_fmt) { + f2fs_info(sbi, "QUOTA feature is enabled, so ignore jquota_fmt"); + F2FS_OPTION(sbi).s_jquota_fmt = 0; + } +#endif +} + +static void f2fs_apply_test_dummy_encryption(struct fs_context *fc, + struct super_block *sb) +{ + struct f2fs_fs_context *ctx = fc->fs_private; + struct f2fs_sb_info *sbi = F2FS_SB(sb); + + if (!fscrypt_is_dummy_policy_set(&F2FS_CTX_INFO(ctx).dummy_enc_policy) || + /* if already set, it was already verified to be the same */ + fscrypt_is_dummy_policy_set(&F2FS_OPTION(sbi).dummy_enc_policy)) + return; + swap(F2FS_OPTION(sbi).dummy_enc_policy, F2FS_CTX_INFO(ctx).dummy_enc_policy); + f2fs_warn(sbi, "Test dummy encryption mode enabled"); +} + +static void f2fs_apply_compression(struct fs_context *fc, + struct super_block *sb) +{ +#ifdef CONFIG_F2FS_FS_COMPRESSION + struct f2fs_fs_context *ctx = fc->fs_private; + struct f2fs_sb_info *sbi = F2FS_SB(sb); + unsigned char (*ctx_ext)[F2FS_EXTENSION_LEN]; + unsigned char (*sbi_ext)[F2FS_EXTENSION_LEN]; + int ctx_cnt, sbi_cnt, i; + + if (ctx->spec_mask & F2FS_SPEC_compress_level) + F2FS_OPTION(sbi).compress_level = + F2FS_CTX_INFO(ctx).compress_level; + if (ctx->spec_mask & F2FS_SPEC_compress_algorithm) + F2FS_OPTION(sbi).compress_algorithm = + F2FS_CTX_INFO(ctx).compress_algorithm; + if (ctx->spec_mask & F2FS_SPEC_compress_log_size) + F2FS_OPTION(sbi).compress_log_size = + F2FS_CTX_INFO(ctx).compress_log_size; + if (ctx->spec_mask & F2FS_SPEC_compress_chksum) + F2FS_OPTION(sbi).compress_chksum = + F2FS_CTX_INFO(ctx).compress_chksum; + if (ctx->spec_mask & F2FS_SPEC_compress_mode) + F2FS_OPTION(sbi).compress_mode = + F2FS_CTX_INFO(ctx).compress_mode; + if (ctx->spec_mask & F2FS_SPEC_compress_extension) { + ctx_ext = F2FS_CTX_INFO(ctx).extensions; + ctx_cnt = F2FS_CTX_INFO(ctx).compress_ext_cnt; + sbi_ext = F2FS_OPTION(sbi).extensions; + sbi_cnt = F2FS_OPTION(sbi).compress_ext_cnt; + for (i = 0; i < ctx_cnt; i++) { + if (strlen(ctx_ext[i]) == 0) + continue; + strscpy(sbi_ext[sbi_cnt], ctx_ext[i]); + sbi_cnt++; + } + F2FS_OPTION(sbi).compress_ext_cnt = sbi_cnt; + } + if (ctx->spec_mask & F2FS_SPEC_nocompress_extension) { + ctx_ext = F2FS_CTX_INFO(ctx).noextensions; + ctx_cnt = F2FS_CTX_INFO(ctx).nocompress_ext_cnt; + sbi_ext = F2FS_OPTION(sbi).noextensions; + sbi_cnt = F2FS_OPTION(sbi).nocompress_ext_cnt; + for (i = 0; i < ctx_cnt; i++) { + if (strlen(ctx_ext[i]) == 0) + continue; + strscpy(sbi_ext[sbi_cnt], ctx_ext[i]); + sbi_cnt++; + } + F2FS_OPTION(sbi).nocompress_ext_cnt = sbi_cnt; + } +#endif +} + +static void f2fs_apply_options(struct fs_context *fc, struct super_block *sb) +{ + struct f2fs_fs_context *ctx = fc->fs_private; + struct f2fs_sb_info *sbi = F2FS_SB(sb); + + F2FS_OPTION(sbi).opt &= ~ctx->opt_mask; + F2FS_OPTION(sbi).opt |= F2FS_CTX_INFO(ctx).opt; + + if (ctx->spec_mask & F2FS_SPEC_background_gc) + F2FS_OPTION(sbi).bggc_mode = F2FS_CTX_INFO(ctx).bggc_mode; + if (ctx->spec_mask & F2FS_SPEC_inline_xattr_size) + F2FS_OPTION(sbi).inline_xattr_size = + F2FS_CTX_INFO(ctx).inline_xattr_size; + if (ctx->spec_mask & F2FS_SPEC_active_logs) + F2FS_OPTION(sbi).active_logs = F2FS_CTX_INFO(ctx).active_logs; + if (ctx->spec_mask & F2FS_SPEC_reserve_root) + F2FS_OPTION(sbi).root_reserved_blocks = + F2FS_CTX_INFO(ctx).root_reserved_blocks; + if (ctx->spec_mask & F2FS_SPEC_reserve_node) + F2FS_OPTION(sbi).root_reserved_nodes = + F2FS_CTX_INFO(ctx).root_reserved_nodes; + if (ctx->spec_mask & F2FS_SPEC_resgid) + F2FS_OPTION(sbi).s_resgid = F2FS_CTX_INFO(ctx).s_resgid; + if (ctx->spec_mask & F2FS_SPEC_resuid) + F2FS_OPTION(sbi).s_resuid = F2FS_CTX_INFO(ctx).s_resuid; + if (ctx->spec_mask & F2FS_SPEC_mode) + F2FS_OPTION(sbi).fs_mode = F2FS_CTX_INFO(ctx).fs_mode; +#ifdef CONFIG_F2FS_FAULT_INJECTION + if (ctx->spec_mask & F2FS_SPEC_fault_injection) + (void)f2fs_build_fault_attr(sbi, + F2FS_CTX_INFO(ctx).fault_info.inject_rate, 0, FAULT_RATE); + if (ctx->spec_mask & F2FS_SPEC_fault_type) + (void)f2fs_build_fault_attr(sbi, 0, + F2FS_CTX_INFO(ctx).fault_info.inject_type, FAULT_TYPE); +#endif + if (ctx->spec_mask & F2FS_SPEC_alloc_mode) + F2FS_OPTION(sbi).alloc_mode = F2FS_CTX_INFO(ctx).alloc_mode; + if (ctx->spec_mask & F2FS_SPEC_fsync_mode) + F2FS_OPTION(sbi).fsync_mode = F2FS_CTX_INFO(ctx).fsync_mode; + if (ctx->spec_mask & F2FS_SPEC_checkpoint_disable_cap) + F2FS_OPTION(sbi).unusable_cap = F2FS_CTX_INFO(ctx).unusable_cap; + if (ctx->spec_mask & F2FS_SPEC_checkpoint_disable_cap_perc) + F2FS_OPTION(sbi).unusable_cap_perc = + F2FS_CTX_INFO(ctx).unusable_cap_perc; + if (ctx->spec_mask & F2FS_SPEC_discard_unit) + F2FS_OPTION(sbi).discard_unit = F2FS_CTX_INFO(ctx).discard_unit; + if (ctx->spec_mask & F2FS_SPEC_memory_mode) + F2FS_OPTION(sbi).memory_mode = F2FS_CTX_INFO(ctx).memory_mode; + if (ctx->spec_mask & F2FS_SPEC_errors) + F2FS_OPTION(sbi).errors = F2FS_CTX_INFO(ctx).errors; + if (ctx->spec_mask & F2FS_SPEC_lookup_mode) + F2FS_OPTION(sbi).lookup_mode = F2FS_CTX_INFO(ctx).lookup_mode; + + f2fs_apply_compression(fc, sb); + f2fs_apply_test_dummy_encryption(fc, sb); + f2fs_apply_quota_options(fc, sb); +} + +static int f2fs_sanity_check_options(struct f2fs_sb_info *sbi, bool remount) +{ + if (f2fs_sb_has_device_alias(sbi) && + !test_opt(sbi, READ_EXTENT_CACHE)) { + f2fs_err(sbi, "device aliasing requires extent cache"); + return -EINVAL; + } + + if (!remount) + return 0; + +#ifdef CONFIG_BLK_DEV_ZONED + if (f2fs_sb_has_blkzoned(sbi) && + sbi->max_open_zones < F2FS_OPTION(sbi).active_logs) { + f2fs_err(sbi, + "zoned: max open zones %u is too small, need at least %u open zones", + sbi->max_open_zones, F2FS_OPTION(sbi).active_logs); + return -EINVAL; + } +#endif + if (f2fs_lfs_mode(sbi) && !IS_F2FS_IPU_DISABLE(sbi)) { + f2fs_warn(sbi, "LFS is not compatible with IPU"); + return -EINVAL; + } return 0; } @@ -165,26 +1746,52 @@ static struct inode *f2fs_alloc_inode(struct super_block *sb) { struct f2fs_inode_info *fi; - fi = kmem_cache_alloc(f2fs_inode_cachep, GFP_NOFS | __GFP_ZERO); + if (time_to_inject(F2FS_SB(sb), FAULT_SLAB_ALLOC)) + return NULL; + + fi = alloc_inode_sb(sb, f2fs_inode_cachep, GFP_F2FS_ZERO); if (!fi) return NULL; init_once((void *) fi); /* Initialize f2fs-specific inode info */ - fi->vfs_inode.i_version = 1; - atomic_set(&fi->dirty_dents, 0); - fi->i_current_depth = 1; - fi->i_advise = 0; - rwlock_init(&fi->ext.ext_lock); + atomic_set(&fi->dirty_pages, 0); + atomic_set(&fi->i_compr_blocks, 0); + atomic_set(&fi->open_count, 0); + atomic_set(&fi->writeback, 0); + init_f2fs_rwsem(&fi->i_sem); + spin_lock_init(&fi->i_size_lock); + INIT_LIST_HEAD(&fi->dirty_list); + INIT_LIST_HEAD(&fi->gdirty_list); + INIT_LIST_HEAD(&fi->gdonate_list); + init_f2fs_rwsem(&fi->i_gc_rwsem[READ]); + init_f2fs_rwsem(&fi->i_gc_rwsem[WRITE]); + init_f2fs_rwsem(&fi->i_xattr_sem); - set_inode_flag(fi, FI_NEW_INODE); + /* Will be used by directory only */ + fi->i_dir_level = F2FS_SB(sb)->dir_level; return &fi->vfs_inode; } static int f2fs_drop_inode(struct inode *inode) { + struct f2fs_sb_info *sbi = F2FS_I_SB(inode); + int ret; + + /* + * during filesystem shutdown, if checkpoint is disabled, + * drop useless meta/node dirty pages. + */ + if (unlikely(is_sbi_flag_set(sbi, SBI_CP_DISABLED))) { + if (inode->i_ino == F2FS_NODE_INO(sbi) || + inode->i_ino == F2FS_META_INO(sbi)) { + trace_f2fs_drop_inode(inode, 1); + return 1; + } + } + /* * This is to avoid a deadlock condition like below. * writeback_single_inode(inode) @@ -192,9 +1799,84 @@ static int f2fs_drop_inode(struct inode *inode) * - f2fs_gc -> iput -> evict * - inode_wait_for_writeback(inode) */ - if (!inode_unhashed(inode) && inode->i_state & I_SYNC) + if ((!inode_unhashed(inode) && inode_state_read(inode) & I_SYNC)) { + if (!inode->i_nlink && !is_bad_inode(inode)) { + /* to avoid evict_inode call simultaneously */ + __iget(inode); + spin_unlock(&inode->i_lock); + + /* should remain fi->extent_tree for writepage */ + f2fs_destroy_extent_node(inode); + + sb_start_intwrite(inode->i_sb); + f2fs_i_size_write(inode, 0); + + f2fs_submit_merged_write_cond(F2FS_I_SB(inode), + inode, NULL, 0, DATA); + truncate_inode_pages_final(inode->i_mapping); + + if (F2FS_HAS_BLOCKS(inode)) + f2fs_truncate(inode); + + sb_end_intwrite(inode->i_sb); + + spin_lock(&inode->i_lock); + atomic_dec(&inode->i_count); + } + trace_f2fs_drop_inode(inode, 0); return 0; - return generic_drop_inode(inode); + } + ret = inode_generic_drop(inode); + if (!ret) + ret = fscrypt_drop_inode(inode); + trace_f2fs_drop_inode(inode, ret); + return ret; +} + +int f2fs_inode_dirtied(struct inode *inode, bool sync) +{ + struct f2fs_sb_info *sbi = F2FS_I_SB(inode); + int ret = 0; + + spin_lock(&sbi->inode_lock[DIRTY_META]); + if (is_inode_flag_set(inode, FI_DIRTY_INODE)) { + ret = 1; + } else { + set_inode_flag(inode, FI_DIRTY_INODE); + stat_inc_dirty_inode(sbi, DIRTY_META); + } + if (sync && list_empty(&F2FS_I(inode)->gdirty_list)) { + list_add_tail(&F2FS_I(inode)->gdirty_list, + &sbi->inode_list[DIRTY_META]); + inc_page_count(sbi, F2FS_DIRTY_IMETA); + } + spin_unlock(&sbi->inode_lock[DIRTY_META]); + + /* if atomic write is not committed, set inode w/ atomic dirty */ + if (!ret && f2fs_is_atomic_file(inode) && + !is_inode_flag_set(inode, FI_ATOMIC_COMMITTED)) + set_inode_flag(inode, FI_ATOMIC_DIRTIED); + + return ret; +} + +void f2fs_inode_synced(struct inode *inode) +{ + struct f2fs_sb_info *sbi = F2FS_I_SB(inode); + + spin_lock(&sbi->inode_lock[DIRTY_META]); + if (!is_inode_flag_set(inode, FI_DIRTY_INODE)) { + spin_unlock(&sbi->inode_lock[DIRTY_META]); + return; + } + if (!list_empty(&F2FS_I(inode)->gdirty_list)) { + list_del_init(&F2FS_I(inode)->gdirty_list); + dec_page_count(sbi, F2FS_DIRTY_IMETA); + } + clear_inode_flag(inode, FI_DIRTY_INODE); + clear_inode_flag(inode, FI_AUTO_RECOVER); + stat_dec_dirty_inode(F2FS_I_SB(inode), DIRTY_META); + spin_unlock(&sbi->inode_lock[DIRTY_META]); } /* @@ -204,127 +1886,475 @@ static int f2fs_drop_inode(struct inode *inode) */ static void f2fs_dirty_inode(struct inode *inode, int flags) { - set_inode_flag(F2FS_I(inode), FI_DIRTY_INODE); - return; + struct f2fs_sb_info *sbi = F2FS_I_SB(inode); + + if (inode->i_ino == F2FS_NODE_INO(sbi) || + inode->i_ino == F2FS_META_INO(sbi)) + return; + + if (is_inode_flag_set(inode, FI_AUTO_RECOVER)) + clear_inode_flag(inode, FI_AUTO_RECOVER); + + f2fs_inode_dirtied(inode, false); } -static void f2fs_i_callback(struct rcu_head *head) +static void f2fs_free_inode(struct inode *inode) { - struct inode *inode = container_of(head, struct inode, i_rcu); + fscrypt_free_inode(inode); kmem_cache_free(f2fs_inode_cachep, F2FS_I(inode)); } -static void f2fs_destroy_inode(struct inode *inode) +static void destroy_percpu_info(struct f2fs_sb_info *sbi) +{ + percpu_counter_destroy(&sbi->total_valid_inode_count); + percpu_counter_destroy(&sbi->rf_node_block_count); + percpu_counter_destroy(&sbi->alloc_valid_block_count); +} + +static void destroy_device_list(struct f2fs_sb_info *sbi) { - call_rcu(&inode->i_rcu, f2fs_i_callback); + int i; + + for (i = 0; i < sbi->s_ndevs; i++) { + if (i > 0) + bdev_fput(FDEV(i).bdev_file); +#ifdef CONFIG_BLK_DEV_ZONED + kvfree(FDEV(i).blkz_seq); +#endif + } + kvfree(sbi->devs); } static void f2fs_put_super(struct super_block *sb) { struct f2fs_sb_info *sbi = F2FS_SB(sb); + int i; + int err = 0; + bool done; - f2fs_destroy_stats(sbi); - stop_gc_thread(sbi); + /* unregister procfs/sysfs entries in advance to avoid race case */ + f2fs_unregister_sysfs(sbi); + + f2fs_quota_off_umount(sb); + + /* prevent remaining shrinker jobs */ + mutex_lock(&sbi->umount_mutex); + + /* + * flush all issued checkpoints and stop checkpoint issue thread. + * after then, all checkpoints should be done by each process context. + */ + f2fs_stop_ckpt_thread(sbi); + + /* + * We don't need to do checkpoint when superblock is clean. + * But, the previous checkpoint was not done by umount, it needs to do + * clean checkpoint again. + */ + if ((is_sbi_flag_set(sbi, SBI_IS_DIRTY) || + !is_set_ckpt_flags(sbi, CP_UMOUNT_FLAG))) { + struct cp_control cpc = { + .reason = CP_UMOUNT, + }; + stat_inc_cp_call_count(sbi, TOTAL_CALL); + err = f2fs_write_checkpoint(sbi, &cpc); + } + + /* be sure to wait for any on-going discard commands */ + done = f2fs_issue_discard_timeout(sbi); + if (f2fs_realtime_discard_enable(sbi) && !sbi->discard_blks && done) { + struct cp_control cpc = { + .reason = CP_UMOUNT | CP_TRIMMED, + }; + stat_inc_cp_call_count(sbi, TOTAL_CALL); + err = f2fs_write_checkpoint(sbi, &cpc); + } + + /* + * normally superblock is clean, so we need to release this. + * In addition, EIO will skip do checkpoint, we need this as well. + */ + f2fs_release_ino_entry(sbi, true); + + f2fs_leave_shrinker(sbi); + mutex_unlock(&sbi->umount_mutex); + + /* our cp_error case, we can wait for any writeback page */ + f2fs_flush_merged_writes(sbi); + + f2fs_wait_on_all_pages(sbi, F2FS_WB_CP_DATA); + + if (err || f2fs_cp_error(sbi)) { + truncate_inode_pages_final(NODE_MAPPING(sbi)); + truncate_inode_pages_final(META_MAPPING(sbi)); + } + + f2fs_bug_on(sbi, sbi->fsync_node_num); - write_checkpoint(sbi, true); + f2fs_destroy_compress_inode(sbi); iput(sbi->node_inode); + sbi->node_inode = NULL; + iput(sbi->meta_inode); + sbi->meta_inode = NULL; + + /* Should check the page counts after dropping all node/meta pages */ + for (i = 0; i < NR_COUNT_TYPE; i++) { + if (!get_pages(sbi, i)) + continue; + f2fs_err(sbi, "detect filesystem reference count leak during " + "umount, type: %d, count: %lld", i, get_pages(sbi, i)); + f2fs_bug_on(sbi, 1); + } + + /* + * iput() can update stat information, if f2fs_write_checkpoint() + * above failed with error. + */ + f2fs_destroy_stats(sbi); /* destroy f2fs internal modules */ - destroy_node_manager(sbi); - destroy_segment_manager(sbi); + f2fs_destroy_node_manager(sbi); + f2fs_destroy_segment_manager(sbi); - kfree(sbi->ckpt); + /* flush s_error_work before sbi destroy */ + flush_work(&sbi->s_error_work); - sb->s_fs_info = NULL; - brelse(sbi->raw_super_buf); - kfree(sbi); + f2fs_destroy_post_read_wq(sbi); + + kvfree(sbi->ckpt); + + kfree(sbi->raw_super); + + f2fs_destroy_page_array_cache(sbi); +#ifdef CONFIG_QUOTA + for (i = 0; i < MAXQUOTAS; i++) + kfree(F2FS_OPTION(sbi).s_qf_names[i]); +#endif + fscrypt_free_dummy_policy(&F2FS_OPTION(sbi).dummy_enc_policy); + destroy_percpu_info(sbi); + f2fs_destroy_iostat(sbi); + for (i = 0; i < NR_PAGE_TYPE; i++) + kfree(sbi->write_io[i]); +#if IS_ENABLED(CONFIG_UNICODE) + utf8_unload(sb->s_encoding); +#endif } int f2fs_sync_fs(struct super_block *sb, int sync) { struct f2fs_sb_info *sbi = F2FS_SB(sb); + int err = 0; + + if (unlikely(f2fs_cp_error(sbi))) + return 0; + if (unlikely(is_sbi_flag_set(sbi, SBI_CP_DISABLED))) + return 0; trace_f2fs_sync_fs(sb, sync); - if (!sbi->s_dirty && !get_pages(sbi, F2FS_DIRTY_NODES)) - return 0; + if (unlikely(is_sbi_flag_set(sbi, SBI_POR_DOING))) + return -EAGAIN; if (sync) { - mutex_lock(&sbi->gc_mutex); - write_checkpoint(sbi, false); - mutex_unlock(&sbi->gc_mutex); - } else { - f2fs_balance_fs(sbi); + stat_inc_cp_call_count(sbi, TOTAL_CALL); + err = f2fs_issue_checkpoint(sbi); } - return 0; + return err; } static int f2fs_freeze(struct super_block *sb) { - int err; + struct f2fs_sb_info *sbi = F2FS_SB(sb); if (f2fs_readonly(sb)) return 0; - err = f2fs_sync_fs(sb, 1); - return err; + /* IO error happened before */ + if (unlikely(f2fs_cp_error(sbi))) + return -EIO; + + /* must be clean, since sync_filesystem() was already called */ + if (is_sbi_flag_set(sbi, SBI_IS_DIRTY)) + return -EINVAL; + + sbi->umount_lock_holder = current; + + /* Let's flush checkpoints and stop the thread. */ + f2fs_flush_ckpt_thread(sbi); + + sbi->umount_lock_holder = NULL; + + /* to avoid deadlock on f2fs_evict_inode->SB_FREEZE_FS */ + set_sbi_flag(sbi, SBI_IS_FREEZING); + return 0; } static int f2fs_unfreeze(struct super_block *sb) { + struct f2fs_sb_info *sbi = F2FS_SB(sb); + + /* + * It will update discard_max_bytes of mounted lvm device to zero + * after creating snapshot on this lvm device, let's drop all + * remained discards. + * We don't need to disable real-time discard because discard_max_bytes + * will recover after removal of snapshot. + */ + if (test_opt(sbi, DISCARD) && !f2fs_hw_support_discard(sbi)) + f2fs_issue_discard_timeout(sbi); + + clear_sbi_flag(F2FS_SB(sb), SBI_IS_FREEZING); + return 0; +} + +#ifdef CONFIG_QUOTA +static int f2fs_statfs_project(struct super_block *sb, + kprojid_t projid, struct kstatfs *buf) +{ + struct kqid qid; + struct dquot *dquot; + u64 limit; + u64 curblock; + + qid = make_kqid_projid(projid); + dquot = dqget(sb, qid); + if (IS_ERR(dquot)) + return PTR_ERR(dquot); + spin_lock(&dquot->dq_dqb_lock); + + limit = min_not_zero(dquot->dq_dqb.dqb_bsoftlimit, + dquot->dq_dqb.dqb_bhardlimit); + limit >>= sb->s_blocksize_bits; + + if (limit) { + uint64_t remaining = 0; + + curblock = (dquot->dq_dqb.dqb_curspace + + dquot->dq_dqb.dqb_rsvspace) >> sb->s_blocksize_bits; + if (limit > curblock) + remaining = limit - curblock; + + buf->f_blocks = min(buf->f_blocks, limit); + buf->f_bfree = min(buf->f_bfree, remaining); + buf->f_bavail = min(buf->f_bavail, remaining); + } + + limit = min_not_zero(dquot->dq_dqb.dqb_isoftlimit, + dquot->dq_dqb.dqb_ihardlimit); + + if (limit) { + uint64_t remaining = 0; + + if (limit > dquot->dq_dqb.dqb_curinodes) + remaining = limit - dquot->dq_dqb.dqb_curinodes; + + buf->f_files = min(buf->f_files, limit); + buf->f_ffree = min(buf->f_ffree, remaining); + } + + spin_unlock(&dquot->dq_dqb_lock); + dqput(dquot); return 0; } +#endif static int f2fs_statfs(struct dentry *dentry, struct kstatfs *buf) { struct super_block *sb = dentry->d_sb; struct f2fs_sb_info *sbi = F2FS_SB(sb); u64 id = huge_encode_dev(sb->s_bdev->bd_dev); - block_t total_count, user_block_count, start_count, ovp_count; + block_t total_count, user_block_count, start_count; + u64 avail_node_count; + unsigned int total_valid_node_count; total_count = le64_to_cpu(sbi->raw_super->block_count); - user_block_count = sbi->user_block_count; start_count = le32_to_cpu(sbi->raw_super->segment0_blkaddr); - ovp_count = SM_I(sbi)->ovp_segments << sbi->log_blocks_per_seg; buf->f_type = F2FS_SUPER_MAGIC; buf->f_bsize = sbi->blocksize; buf->f_blocks = total_count - start_count; - buf->f_bfree = buf->f_blocks - valid_user_blocks(sbi) - ovp_count; - buf->f_bavail = user_block_count - valid_user_blocks(sbi); - buf->f_files = sbi->total_node_count; - buf->f_ffree = sbi->total_node_count - valid_inode_count(sbi); + spin_lock(&sbi->stat_lock); + if (sbi->carve_out) + buf->f_blocks -= sbi->current_reserved_blocks; + user_block_count = sbi->user_block_count; + total_valid_node_count = valid_node_count(sbi); + avail_node_count = sbi->total_node_count - F2FS_RESERVED_NODE_NUM; + buf->f_bfree = user_block_count - valid_user_blocks(sbi) - + sbi->current_reserved_blocks; + + if (unlikely(buf->f_bfree <= sbi->unusable_block_count)) + buf->f_bfree = 0; + else + buf->f_bfree -= sbi->unusable_block_count; + spin_unlock(&sbi->stat_lock); + + if (buf->f_bfree > F2FS_OPTION(sbi).root_reserved_blocks) + buf->f_bavail = buf->f_bfree - + F2FS_OPTION(sbi).root_reserved_blocks; + else + buf->f_bavail = 0; + + if (avail_node_count > user_block_count) { + buf->f_files = user_block_count; + buf->f_ffree = buf->f_bavail; + } else { + buf->f_files = avail_node_count; + buf->f_ffree = min(avail_node_count - total_valid_node_count, + buf->f_bavail); + } buf->f_namelen = F2FS_NAME_LEN; - buf->f_fsid.val[0] = (u32)id; - buf->f_fsid.val[1] = (u32)(id >> 32); + buf->f_fsid = u64_to_fsid(id); +#ifdef CONFIG_QUOTA + if (is_inode_flag_set(d_inode(dentry), FI_PROJ_INHERIT) && + sb_has_quota_limits_enabled(sb, PRJQUOTA)) { + f2fs_statfs_project(sb, F2FS_I(d_inode(dentry))->i_projid, buf); + } +#endif return 0; } +static inline void f2fs_show_quota_options(struct seq_file *seq, + struct super_block *sb) +{ +#ifdef CONFIG_QUOTA + struct f2fs_sb_info *sbi = F2FS_SB(sb); + + if (F2FS_OPTION(sbi).s_jquota_fmt) { + char *fmtname = ""; + + switch (F2FS_OPTION(sbi).s_jquota_fmt) { + case QFMT_VFS_OLD: + fmtname = "vfsold"; + break; + case QFMT_VFS_V0: + fmtname = "vfsv0"; + break; + case QFMT_VFS_V1: + fmtname = "vfsv1"; + break; + } + seq_printf(seq, ",jqfmt=%s", fmtname); + } + + if (F2FS_OPTION(sbi).s_qf_names[USRQUOTA]) + seq_show_option(seq, "usrjquota", + F2FS_OPTION(sbi).s_qf_names[USRQUOTA]); + + if (F2FS_OPTION(sbi).s_qf_names[GRPQUOTA]) + seq_show_option(seq, "grpjquota", + F2FS_OPTION(sbi).s_qf_names[GRPQUOTA]); + + if (F2FS_OPTION(sbi).s_qf_names[PRJQUOTA]) + seq_show_option(seq, "prjjquota", + F2FS_OPTION(sbi).s_qf_names[PRJQUOTA]); +#endif +} + +#ifdef CONFIG_F2FS_FS_COMPRESSION +static inline void f2fs_show_compress_options(struct seq_file *seq, + struct super_block *sb) +{ + struct f2fs_sb_info *sbi = F2FS_SB(sb); + char *algtype = ""; + int i; + + if (!f2fs_sb_has_compression(sbi)) + return; + + switch (F2FS_OPTION(sbi).compress_algorithm) { + case COMPRESS_LZO: + algtype = "lzo"; + break; + case COMPRESS_LZ4: + algtype = "lz4"; + break; + case COMPRESS_ZSTD: + algtype = "zstd"; + break; + case COMPRESS_LZORLE: + algtype = "lzo-rle"; + break; + } + seq_printf(seq, ",compress_algorithm=%s", algtype); + + if (F2FS_OPTION(sbi).compress_level) + seq_printf(seq, ":%d", F2FS_OPTION(sbi).compress_level); + + seq_printf(seq, ",compress_log_size=%u", + F2FS_OPTION(sbi).compress_log_size); + + for (i = 0; i < F2FS_OPTION(sbi).compress_ext_cnt; i++) { + seq_printf(seq, ",compress_extension=%s", + F2FS_OPTION(sbi).extensions[i]); + } + + for (i = 0; i < F2FS_OPTION(sbi).nocompress_ext_cnt; i++) { + seq_printf(seq, ",nocompress_extension=%s", + F2FS_OPTION(sbi).noextensions[i]); + } + + if (F2FS_OPTION(sbi).compress_chksum) + seq_puts(seq, ",compress_chksum"); + + if (F2FS_OPTION(sbi).compress_mode == COMPR_MODE_FS) + seq_printf(seq, ",compress_mode=%s", "fs"); + else if (F2FS_OPTION(sbi).compress_mode == COMPR_MODE_USER) + seq_printf(seq, ",compress_mode=%s", "user"); + + if (test_opt(sbi, COMPRESS_CACHE)) + seq_puts(seq, ",compress_cache"); +} +#endif + static int f2fs_show_options(struct seq_file *seq, struct dentry *root) { struct f2fs_sb_info *sbi = F2FS_SB(root->d_sb); - if (!(root->d_sb->s_flags & MS_RDONLY) && test_opt(sbi, BG_GC)) + if (F2FS_OPTION(sbi).bggc_mode == BGGC_MODE_SYNC) + seq_printf(seq, ",background_gc=%s", "sync"); + else if (F2FS_OPTION(sbi).bggc_mode == BGGC_MODE_ON) seq_printf(seq, ",background_gc=%s", "on"); - else + else if (F2FS_OPTION(sbi).bggc_mode == BGGC_MODE_OFF) seq_printf(seq, ",background_gc=%s", "off"); + + if (test_opt(sbi, GC_MERGE)) + seq_puts(seq, ",gc_merge"); + else + seq_puts(seq, ",nogc_merge"); + if (test_opt(sbi, DISABLE_ROLL_FORWARD)) seq_puts(seq, ",disable_roll_forward"); - if (test_opt(sbi, DISCARD)) + if (test_opt(sbi, NORECOVERY)) + seq_puts(seq, ",norecovery"); + if (test_opt(sbi, DISCARD)) { seq_puts(seq, ",discard"); - if (test_opt(sbi, NOHEAP)) - seq_puts(seq, ",no_heap_alloc"); + if (F2FS_OPTION(sbi).discard_unit == DISCARD_UNIT_BLOCK) + seq_printf(seq, ",discard_unit=%s", "block"); + else if (F2FS_OPTION(sbi).discard_unit == DISCARD_UNIT_SEGMENT) + seq_printf(seq, ",discard_unit=%s", "segment"); + else if (F2FS_OPTION(sbi).discard_unit == DISCARD_UNIT_SECTION) + seq_printf(seq, ",discard_unit=%s", "section"); + } else { + seq_puts(seq, ",nodiscard"); + } #ifdef CONFIG_F2FS_FS_XATTR if (test_opt(sbi, XATTR_USER)) seq_puts(seq, ",user_xattr"); else seq_puts(seq, ",nouser_xattr"); + if (test_opt(sbi, INLINE_XATTR)) + seq_puts(seq, ",inline_xattr"); + else + seq_puts(seq, ",noinline_xattr"); + if (test_opt(sbi, INLINE_XATTR_SIZE)) + seq_printf(seq, ",inline_xattr_size=%u", + F2FS_OPTION(sbi).inline_xattr_size); #endif #ifdef CONFIG_F2FS_FS_POSIX_ACL if (test_opt(sbi, POSIX_ACL)) @@ -334,87 +2364,1355 @@ static int f2fs_show_options(struct seq_file *seq, struct dentry *root) #endif if (test_opt(sbi, DISABLE_EXT_IDENTIFY)) seq_puts(seq, ",disable_ext_identify"); + if (test_opt(sbi, INLINE_DATA)) + seq_puts(seq, ",inline_data"); + else + seq_puts(seq, ",noinline_data"); + if (test_opt(sbi, INLINE_DENTRY)) + seq_puts(seq, ",inline_dentry"); + else + seq_puts(seq, ",noinline_dentry"); + if (test_opt(sbi, FLUSH_MERGE)) + seq_puts(seq, ",flush_merge"); + else + seq_puts(seq, ",noflush_merge"); + if (test_opt(sbi, NOBARRIER)) + seq_puts(seq, ",nobarrier"); + else + seq_puts(seq, ",barrier"); + if (test_opt(sbi, FASTBOOT)) + seq_puts(seq, ",fastboot"); + if (test_opt(sbi, READ_EXTENT_CACHE)) + seq_puts(seq, ",extent_cache"); + else + seq_puts(seq, ",noextent_cache"); + if (test_opt(sbi, AGE_EXTENT_CACHE)) + seq_puts(seq, ",age_extent_cache"); + if (test_opt(sbi, DATA_FLUSH)) + seq_puts(seq, ",data_flush"); + + seq_puts(seq, ",mode="); + if (F2FS_OPTION(sbi).fs_mode == FS_MODE_ADAPTIVE) + seq_puts(seq, "adaptive"); + else if (F2FS_OPTION(sbi).fs_mode == FS_MODE_LFS) + seq_puts(seq, "lfs"); + else if (F2FS_OPTION(sbi).fs_mode == FS_MODE_FRAGMENT_SEG) + seq_puts(seq, "fragment:segment"); + else if (F2FS_OPTION(sbi).fs_mode == FS_MODE_FRAGMENT_BLK) + seq_puts(seq, "fragment:block"); + seq_printf(seq, ",active_logs=%u", F2FS_OPTION(sbi).active_logs); + if (test_opt(sbi, RESERVE_ROOT) || test_opt(sbi, RESERVE_NODE)) + seq_printf(seq, ",reserve_root=%u,reserve_node=%u,resuid=%u," + "resgid=%u", + F2FS_OPTION(sbi).root_reserved_blocks, + F2FS_OPTION(sbi).root_reserved_nodes, + from_kuid_munged(&init_user_ns, + F2FS_OPTION(sbi).s_resuid), + from_kgid_munged(&init_user_ns, + F2FS_OPTION(sbi).s_resgid)); +#ifdef CONFIG_F2FS_FAULT_INJECTION + if (test_opt(sbi, FAULT_INJECTION)) { + seq_printf(seq, ",fault_injection=%u", + F2FS_OPTION(sbi).fault_info.inject_rate); + seq_printf(seq, ",fault_type=%u", + F2FS_OPTION(sbi).fault_info.inject_type); + } +#endif +#ifdef CONFIG_QUOTA + if (test_opt(sbi, QUOTA)) + seq_puts(seq, ",quota"); + if (test_opt(sbi, USRQUOTA)) + seq_puts(seq, ",usrquota"); + if (test_opt(sbi, GRPQUOTA)) + seq_puts(seq, ",grpquota"); + if (test_opt(sbi, PRJQUOTA)) + seq_puts(seq, ",prjquota"); +#endif + f2fs_show_quota_options(seq, sbi->sb); + + fscrypt_show_test_dummy_encryption(seq, ',', sbi->sb); + + if (sbi->sb->s_flags & SB_INLINECRYPT) + seq_puts(seq, ",inlinecrypt"); + + if (F2FS_OPTION(sbi).alloc_mode == ALLOC_MODE_DEFAULT) + seq_printf(seq, ",alloc_mode=%s", "default"); + else if (F2FS_OPTION(sbi).alloc_mode == ALLOC_MODE_REUSE) + seq_printf(seq, ",alloc_mode=%s", "reuse"); + + if (test_opt(sbi, DISABLE_CHECKPOINT)) + seq_printf(seq, ",checkpoint=disable:%u", + F2FS_OPTION(sbi).unusable_cap); + if (test_opt(sbi, MERGE_CHECKPOINT)) + seq_puts(seq, ",checkpoint_merge"); + else + seq_puts(seq, ",nocheckpoint_merge"); + if (F2FS_OPTION(sbi).fsync_mode == FSYNC_MODE_POSIX) + seq_printf(seq, ",fsync_mode=%s", "posix"); + else if (F2FS_OPTION(sbi).fsync_mode == FSYNC_MODE_STRICT) + seq_printf(seq, ",fsync_mode=%s", "strict"); + else if (F2FS_OPTION(sbi).fsync_mode == FSYNC_MODE_NOBARRIER) + seq_printf(seq, ",fsync_mode=%s", "nobarrier"); + +#ifdef CONFIG_F2FS_FS_COMPRESSION + f2fs_show_compress_options(seq, sbi->sb); +#endif + + if (test_opt(sbi, ATGC)) + seq_puts(seq, ",atgc"); + + if (F2FS_OPTION(sbi).memory_mode == MEMORY_MODE_NORMAL) + seq_printf(seq, ",memory=%s", "normal"); + else if (F2FS_OPTION(sbi).memory_mode == MEMORY_MODE_LOW) + seq_printf(seq, ",memory=%s", "low"); - seq_printf(seq, ",active_logs=%u", sbi->active_logs); + if (F2FS_OPTION(sbi).errors == MOUNT_ERRORS_READONLY) + seq_printf(seq, ",errors=%s", "remount-ro"); + else if (F2FS_OPTION(sbi).errors == MOUNT_ERRORS_CONTINUE) + seq_printf(seq, ",errors=%s", "continue"); + else if (F2FS_OPTION(sbi).errors == MOUNT_ERRORS_PANIC) + seq_printf(seq, ",errors=%s", "panic"); + + if (test_opt(sbi, NAT_BITS)) + seq_puts(seq, ",nat_bits"); + + if (F2FS_OPTION(sbi).lookup_mode == LOOKUP_PERF) + seq_show_option(seq, "lookup_mode", "perf"); + else if (F2FS_OPTION(sbi).lookup_mode == LOOKUP_COMPAT) + seq_show_option(seq, "lookup_mode", "compat"); + else if (F2FS_OPTION(sbi).lookup_mode == LOOKUP_AUTO) + seq_show_option(seq, "lookup_mode", "auto"); return 0; } -static int f2fs_remount(struct super_block *sb, int *flags, char *data) +static void default_options(struct f2fs_sb_info *sbi, bool remount) +{ + /* init some FS parameters */ + if (!remount) { + set_opt(sbi, READ_EXTENT_CACHE); + clear_opt(sbi, DISABLE_CHECKPOINT); + + if (f2fs_hw_support_discard(sbi) || f2fs_hw_should_discard(sbi)) + set_opt(sbi, DISCARD); + + if (f2fs_sb_has_blkzoned(sbi)) + F2FS_OPTION(sbi).discard_unit = DISCARD_UNIT_SECTION; + else + F2FS_OPTION(sbi).discard_unit = DISCARD_UNIT_BLOCK; + } + + if (f2fs_sb_has_readonly(sbi)) + F2FS_OPTION(sbi).active_logs = NR_CURSEG_RO_TYPE; + else + F2FS_OPTION(sbi).active_logs = NR_CURSEG_PERSIST_TYPE; + + F2FS_OPTION(sbi).inline_xattr_size = DEFAULT_INLINE_XATTR_ADDRS; + if (le32_to_cpu(F2FS_RAW_SUPER(sbi)->segment_count_main) <= + SMALL_VOLUME_SEGMENTS) + F2FS_OPTION(sbi).alloc_mode = ALLOC_MODE_REUSE; + else + F2FS_OPTION(sbi).alloc_mode = ALLOC_MODE_DEFAULT; + F2FS_OPTION(sbi).fsync_mode = FSYNC_MODE_POSIX; + F2FS_OPTION(sbi).s_resuid = make_kuid(&init_user_ns, F2FS_DEF_RESUID); + F2FS_OPTION(sbi).s_resgid = make_kgid(&init_user_ns, F2FS_DEF_RESGID); + if (f2fs_sb_has_compression(sbi)) { + F2FS_OPTION(sbi).compress_algorithm = COMPRESS_LZ4; + F2FS_OPTION(sbi).compress_log_size = MIN_COMPRESS_LOG_SIZE; + F2FS_OPTION(sbi).compress_ext_cnt = 0; + F2FS_OPTION(sbi).compress_mode = COMPR_MODE_FS; + } + F2FS_OPTION(sbi).bggc_mode = BGGC_MODE_ON; + F2FS_OPTION(sbi).memory_mode = MEMORY_MODE_NORMAL; + F2FS_OPTION(sbi).errors = MOUNT_ERRORS_CONTINUE; + + set_opt(sbi, INLINE_XATTR); + set_opt(sbi, INLINE_DATA); + set_opt(sbi, INLINE_DENTRY); + set_opt(sbi, MERGE_CHECKPOINT); + set_opt(sbi, LAZYTIME); + F2FS_OPTION(sbi).unusable_cap = 0; + if (!f2fs_is_readonly(sbi)) + set_opt(sbi, FLUSH_MERGE); + if (f2fs_sb_has_blkzoned(sbi)) + F2FS_OPTION(sbi).fs_mode = FS_MODE_LFS; + else + F2FS_OPTION(sbi).fs_mode = FS_MODE_ADAPTIVE; + +#ifdef CONFIG_F2FS_FS_XATTR + set_opt(sbi, XATTR_USER); +#endif +#ifdef CONFIG_F2FS_FS_POSIX_ACL + set_opt(sbi, POSIX_ACL); +#endif + + f2fs_build_fault_attr(sbi, 0, 0, FAULT_ALL); + + F2FS_OPTION(sbi).lookup_mode = LOOKUP_PERF; +} + +#ifdef CONFIG_QUOTA +static int f2fs_enable_quotas(struct super_block *sb); +#endif + +static int f2fs_disable_checkpoint(struct f2fs_sb_info *sbi) +{ + unsigned int s_flags = sbi->sb->s_flags; + struct cp_control cpc; + unsigned int gc_mode = sbi->gc_mode; + int err = 0; + int ret; + block_t unusable; + + if (s_flags & SB_RDONLY) { + f2fs_err(sbi, "checkpoint=disable on readonly fs"); + return -EINVAL; + } + sbi->sb->s_flags |= SB_ACTIVE; + + /* check if we need more GC first */ + unusable = f2fs_get_unusable_blocks(sbi); + if (!f2fs_disable_cp_again(sbi, unusable)) + goto skip_gc; + + f2fs_update_time(sbi, DISABLE_TIME); + + sbi->gc_mode = GC_URGENT_HIGH; + + while (!f2fs_time_over(sbi, DISABLE_TIME)) { + struct f2fs_gc_control gc_control = { + .victim_segno = NULL_SEGNO, + .init_gc_type = FG_GC, + .should_migrate_blocks = false, + .err_gc_skipped = true, + .no_bg_gc = true, + .nr_free_secs = 1 }; + + f2fs_down_write(&sbi->gc_lock); + stat_inc_gc_call_count(sbi, FOREGROUND); + err = f2fs_gc(sbi, &gc_control); + if (err == -ENODATA) { + err = 0; + break; + } + if (err && err != -EAGAIN) + break; + } + + ret = sync_filesystem(sbi->sb); + if (ret || err) { + err = ret ? ret : err; + goto restore_flag; + } + + unusable = f2fs_get_unusable_blocks(sbi); + if (f2fs_disable_cp_again(sbi, unusable)) { + err = -EAGAIN; + goto restore_flag; + } + +skip_gc: + f2fs_down_write(&sbi->gc_lock); + cpc.reason = CP_PAUSE; + set_sbi_flag(sbi, SBI_CP_DISABLED); + stat_inc_cp_call_count(sbi, TOTAL_CALL); + err = f2fs_write_checkpoint(sbi, &cpc); + if (err) + goto out_unlock; + + spin_lock(&sbi->stat_lock); + sbi->unusable_block_count = unusable; + spin_unlock(&sbi->stat_lock); + +out_unlock: + f2fs_up_write(&sbi->gc_lock); +restore_flag: + sbi->gc_mode = gc_mode; + sbi->sb->s_flags = s_flags; /* Restore SB_RDONLY status */ + f2fs_info(sbi, "f2fs_disable_checkpoint() finish, err:%d", err); + return err; +} + +static int f2fs_enable_checkpoint(struct f2fs_sb_info *sbi) +{ + unsigned int nr_pages = get_pages(sbi, F2FS_DIRTY_DATA) / 16; + long long start, writeback, lock, sync_inode, end; + int ret; + + f2fs_info(sbi, "%s start, meta: %lld, node: %lld, data: %lld", + __func__, + get_pages(sbi, F2FS_DIRTY_META), + get_pages(sbi, F2FS_DIRTY_NODES), + get_pages(sbi, F2FS_DIRTY_DATA)); + + f2fs_update_time(sbi, ENABLE_TIME); + + start = ktime_get(); + + /* we should flush all the data to keep data consistency */ + while (get_pages(sbi, F2FS_DIRTY_DATA)) { + writeback_inodes_sb_nr(sbi->sb, nr_pages, WB_REASON_SYNC); + f2fs_io_schedule_timeout(DEFAULT_SCHEDULE_TIMEOUT); + + if (f2fs_time_over(sbi, ENABLE_TIME)) + break; + } + writeback = ktime_get(); + + f2fs_down_write(&sbi->cp_enable_rwsem); + + lock = ktime_get(); + + if (get_pages(sbi, F2FS_DIRTY_DATA)) + sync_inodes_sb(sbi->sb); + + if (unlikely(get_pages(sbi, F2FS_DIRTY_DATA))) + f2fs_warn(sbi, "%s: has some unwritten data: %lld", + __func__, get_pages(sbi, F2FS_DIRTY_DATA)); + + sync_inode = ktime_get(); + + f2fs_down_write(&sbi->gc_lock); + f2fs_dirty_to_prefree(sbi); + + clear_sbi_flag(sbi, SBI_CP_DISABLED); + set_sbi_flag(sbi, SBI_IS_DIRTY); + f2fs_up_write(&sbi->gc_lock); + + f2fs_info(sbi, "%s sync_fs, meta: %lld, imeta: %lld, node: %lld, dents: %lld, qdata: %lld", + __func__, + get_pages(sbi, F2FS_DIRTY_META), + get_pages(sbi, F2FS_DIRTY_IMETA), + get_pages(sbi, F2FS_DIRTY_NODES), + get_pages(sbi, F2FS_DIRTY_DENTS), + get_pages(sbi, F2FS_DIRTY_QDATA)); + ret = f2fs_sync_fs(sbi->sb, 1); + if (ret) + f2fs_err(sbi, "%s sync_fs failed, ret: %d", __func__, ret); + + /* Let's ensure there's no pending checkpoint anymore */ + f2fs_flush_ckpt_thread(sbi); + + f2fs_up_write(&sbi->cp_enable_rwsem); + + end = ktime_get(); + + f2fs_info(sbi, "%s end, writeback:%llu, " + "lock:%llu, sync_inode:%llu, sync_fs:%llu", + __func__, + ktime_ms_delta(writeback, start), + ktime_ms_delta(lock, writeback), + ktime_ms_delta(sync_inode, lock), + ktime_ms_delta(end, sync_inode)); + return ret; +} + +static int __f2fs_remount(struct fs_context *fc, struct super_block *sb) { struct f2fs_sb_info *sbi = F2FS_SB(sb); struct f2fs_mount_info org_mount_opt; - int err, active_logs; + unsigned long old_sb_flags; + unsigned int flags = fc->sb_flags; + int err; + bool need_restart_gc = false, need_stop_gc = false; + bool need_restart_flush = false, need_stop_flush = false; + bool need_restart_discard = false, need_stop_discard = false; + bool need_enable_checkpoint = false, need_disable_checkpoint = false; + bool no_read_extent_cache = !test_opt(sbi, READ_EXTENT_CACHE); + bool no_age_extent_cache = !test_opt(sbi, AGE_EXTENT_CACHE); + bool enable_checkpoint = !test_opt(sbi, DISABLE_CHECKPOINT); + bool no_atgc = !test_opt(sbi, ATGC); + bool no_discard = !test_opt(sbi, DISCARD); + bool no_compress_cache = !test_opt(sbi, COMPRESS_CACHE); + bool block_unit_discard = f2fs_block_unit_discard(sbi); + bool no_nat_bits = !test_opt(sbi, NAT_BITS); +#ifdef CONFIG_QUOTA + int i, j; +#endif /* * Save the old mount options in case we * need to restore them. */ org_mount_opt = sbi->mount_opt; - active_logs = sbi->active_logs; + old_sb_flags = sb->s_flags; + + sbi->umount_lock_holder = current; + +#ifdef CONFIG_QUOTA + org_mount_opt.s_jquota_fmt = F2FS_OPTION(sbi).s_jquota_fmt; + for (i = 0; i < MAXQUOTAS; i++) { + if (F2FS_OPTION(sbi).s_qf_names[i]) { + org_mount_opt.s_qf_names[i] = + kstrdup(F2FS_OPTION(sbi).s_qf_names[i], + GFP_KERNEL); + if (!org_mount_opt.s_qf_names[i]) { + for (j = 0; j < i; j++) + kfree(org_mount_opt.s_qf_names[j]); + return -ENOMEM; + } + } else { + org_mount_opt.s_qf_names[i] = NULL; + } + } +#endif - /* parse mount options */ - err = parse_options(sb, data); + /* recover superblocks we couldn't write due to previous RO mount */ + if (!(flags & SB_RDONLY) && is_sbi_flag_set(sbi, SBI_NEED_SB_WRITE)) { + err = f2fs_commit_super(sbi, false); + f2fs_info(sbi, "Try to recover all the superblocks, ret: %d", + err); + if (!err) + clear_sbi_flag(sbi, SBI_NEED_SB_WRITE); + } + + default_options(sbi, true); + + err = f2fs_check_opt_consistency(fc, sb); + if (err) + goto restore_opts; + + f2fs_apply_options(fc, sb); + + err = f2fs_sanity_check_options(sbi, true); if (err) goto restore_opts; + /* flush outstanding errors before changing fs state */ + flush_work(&sbi->s_error_work); + /* * Previous and new state of filesystem is RO, - * so no point in checking GC conditions. + * so skip checking GC and FLUSH_MERGE conditions. */ - if ((sb->s_flags & MS_RDONLY) && (*flags & MS_RDONLY)) + if (f2fs_readonly(sb) && (flags & SB_RDONLY)) goto skip; + if (f2fs_dev_is_readonly(sbi) && !(flags & SB_RDONLY)) { + err = -EROFS; + goto restore_opts; + } + +#ifdef CONFIG_QUOTA + if (!f2fs_readonly(sb) && (flags & SB_RDONLY)) { + err = dquot_suspend(sb, -1); + if (err < 0) + goto restore_opts; + } else if (f2fs_readonly(sb) && !(flags & SB_RDONLY)) { + /* dquot_resume needs RW */ + sb->s_flags &= ~SB_RDONLY; + if (sb_any_quota_suspended(sb)) { + dquot_resume(sb, -1); + } else if (f2fs_sb_has_quota_ino(sbi)) { + err = f2fs_enable_quotas(sb); + if (err) + goto restore_opts; + } + } +#endif + /* disallow enable atgc dynamically */ + if (no_atgc == !!test_opt(sbi, ATGC)) { + err = -EINVAL; + f2fs_warn(sbi, "switch atgc option is not allowed"); + goto restore_opts; + } + + /* disallow enable/disable extent_cache dynamically */ + if (no_read_extent_cache == !!test_opt(sbi, READ_EXTENT_CACHE)) { + err = -EINVAL; + f2fs_warn(sbi, "switch extent_cache option is not allowed"); + goto restore_opts; + } + /* disallow enable/disable age extent_cache dynamically */ + if (no_age_extent_cache == !!test_opt(sbi, AGE_EXTENT_CACHE)) { + err = -EINVAL; + f2fs_warn(sbi, "switch age_extent_cache option is not allowed"); + goto restore_opts; + } + + if (no_compress_cache == !!test_opt(sbi, COMPRESS_CACHE)) { + err = -EINVAL; + f2fs_warn(sbi, "switch compress_cache option is not allowed"); + goto restore_opts; + } + + if (block_unit_discard != f2fs_block_unit_discard(sbi)) { + err = -EINVAL; + f2fs_warn(sbi, "switch discard_unit option is not allowed"); + goto restore_opts; + } + + if (no_nat_bits == !!test_opt(sbi, NAT_BITS)) { + err = -EINVAL; + f2fs_warn(sbi, "switch nat_bits option is not allowed"); + goto restore_opts; + } + + if ((flags & SB_RDONLY) && test_opt(sbi, DISABLE_CHECKPOINT)) { + err = -EINVAL; + f2fs_warn(sbi, "disabling checkpoint not compatible with read-only"); + goto restore_opts; + } + /* * We stop the GC thread if FS is mounted as RO * or if background_gc = off is passed in mount * option. Also sync the filesystem. */ - if ((*flags & MS_RDONLY) || !test_opt(sbi, BG_GC)) { + if ((flags & SB_RDONLY) || + (F2FS_OPTION(sbi).bggc_mode == BGGC_MODE_OFF && + !test_opt(sbi, GC_MERGE))) { if (sbi->gc_thread) { - stop_gc_thread(sbi); - f2fs_sync_fs(sb, 1); + f2fs_stop_gc_thread(sbi); + need_restart_gc = true; } - } else if (test_opt(sbi, BG_GC) && !sbi->gc_thread) { - err = start_gc_thread(sbi); + } else if (!sbi->gc_thread) { + err = f2fs_start_gc_thread(sbi); if (err) goto restore_opts; + need_stop_gc = true; + } + + if (flags & SB_RDONLY) { + sync_inodes_sb(sb); + + set_sbi_flag(sbi, SBI_IS_DIRTY); + set_sbi_flag(sbi, SBI_IS_CLOSE); + f2fs_sync_fs(sb, 1); + clear_sbi_flag(sbi, SBI_IS_CLOSE); + } + + /* + * We stop issue flush thread if FS is mounted as RO + * or if flush_merge is not passed in mount option. + */ + if ((flags & SB_RDONLY) || !test_opt(sbi, FLUSH_MERGE)) { + clear_opt(sbi, FLUSH_MERGE); + f2fs_destroy_flush_cmd_control(sbi, false); + need_restart_flush = true; + } else { + err = f2fs_create_flush_cmd_control(sbi); + if (err) + goto restore_gc; + need_stop_flush = true; + } + + if (no_discard == !!test_opt(sbi, DISCARD)) { + if (test_opt(sbi, DISCARD)) { + err = f2fs_start_discard_thread(sbi); + if (err) + goto restore_flush; + need_stop_discard = true; + } else { + f2fs_stop_discard_thread(sbi); + f2fs_issue_discard_timeout(sbi); + need_restart_discard = true; + } + } + + adjust_unusable_cap_perc(sbi); + if (enable_checkpoint == !!test_opt(sbi, DISABLE_CHECKPOINT)) { + if (test_opt(sbi, DISABLE_CHECKPOINT)) { + err = f2fs_disable_checkpoint(sbi); + if (err) + goto restore_discard; + need_enable_checkpoint = true; + } else { + err = f2fs_enable_checkpoint(sbi); + if (err) + goto restore_discard; + need_disable_checkpoint = true; + } + } + + /* + * Place this routine at the end, since a new checkpoint would be + * triggered while remount and we need to take care of it before + * returning from remount. + */ + if ((flags & SB_RDONLY) || test_opt(sbi, DISABLE_CHECKPOINT) || + !test_opt(sbi, MERGE_CHECKPOINT)) { + f2fs_stop_ckpt_thread(sbi); + } else { + /* Flush if the previous checkpoint, if exists. */ + f2fs_flush_ckpt_thread(sbi); + + err = f2fs_start_ckpt_thread(sbi); + if (err) { + f2fs_err(sbi, + "Failed to start F2FS issue_checkpoint_thread (%d)", + err); + goto restore_checkpoint; + } } + skip: +#ifdef CONFIG_QUOTA + /* Release old quota file names */ + for (i = 0; i < MAXQUOTAS; i++) + kfree(org_mount_opt.s_qf_names[i]); +#endif /* Update the POSIXACL Flag */ - sb->s_flags = (sb->s_flags & ~MS_POSIXACL) | - (test_opt(sbi, POSIX_ACL) ? MS_POSIXACL : 0); - return 0; + sb->s_flags = (sb->s_flags & ~SB_POSIXACL) | + (test_opt(sbi, POSIX_ACL) ? SB_POSIXACL : 0); + limit_reserve_root(sbi); + fc->sb_flags = (flags & ~SB_LAZYTIME) | (sb->s_flags & SB_LAZYTIME); + + sbi->umount_lock_holder = NULL; + return 0; +restore_checkpoint: + if (need_enable_checkpoint) { + if (f2fs_enable_checkpoint(sbi)) + f2fs_warn(sbi, "checkpoint has not been enabled"); + } else if (need_disable_checkpoint) { + if (f2fs_disable_checkpoint(sbi)) + f2fs_warn(sbi, "checkpoint has not been disabled"); + } +restore_discard: + if (need_restart_discard) { + if (f2fs_start_discard_thread(sbi)) + f2fs_warn(sbi, "discard has been stopped"); + } else if (need_stop_discard) { + f2fs_stop_discard_thread(sbi); + } +restore_flush: + if (need_restart_flush) { + if (f2fs_create_flush_cmd_control(sbi)) + f2fs_warn(sbi, "background flush thread has stopped"); + } else if (need_stop_flush) { + clear_opt(sbi, FLUSH_MERGE); + f2fs_destroy_flush_cmd_control(sbi, false); + } +restore_gc: + if (need_restart_gc) { + if (f2fs_start_gc_thread(sbi)) + f2fs_warn(sbi, "background gc thread has stopped"); + } else if (need_stop_gc) { + f2fs_stop_gc_thread(sbi); + } restore_opts: +#ifdef CONFIG_QUOTA + F2FS_OPTION(sbi).s_jquota_fmt = org_mount_opt.s_jquota_fmt; + for (i = 0; i < MAXQUOTAS; i++) { + kfree(F2FS_OPTION(sbi).s_qf_names[i]); + F2FS_OPTION(sbi).s_qf_names[i] = org_mount_opt.s_qf_names[i]; + } +#endif sbi->mount_opt = org_mount_opt; - sbi->active_logs = active_logs; + sb->s_flags = old_sb_flags; + + sbi->umount_lock_holder = NULL; + return err; +} + +static void f2fs_shutdown(struct super_block *sb) +{ + f2fs_do_shutdown(F2FS_SB(sb), F2FS_GOING_DOWN_NOSYNC, false, false); +} + +#ifdef CONFIG_QUOTA +static bool f2fs_need_recovery(struct f2fs_sb_info *sbi) +{ + /* need to recovery orphan */ + if (is_set_ckpt_flags(sbi, CP_ORPHAN_PRESENT_FLAG)) + return true; + /* need to recovery data */ + if (test_opt(sbi, DISABLE_ROLL_FORWARD)) + return false; + if (test_opt(sbi, NORECOVERY)) + return false; + return !is_set_ckpt_flags(sbi, CP_UMOUNT_FLAG); +} + +static bool f2fs_recover_quota_begin(struct f2fs_sb_info *sbi) +{ + bool readonly = f2fs_readonly(sbi->sb); + + if (!f2fs_need_recovery(sbi)) + return false; + + /* it doesn't need to check f2fs_sb_has_readonly() */ + if (f2fs_hw_is_readonly(sbi)) + return false; + + if (readonly) { + sbi->sb->s_flags &= ~SB_RDONLY; + set_sbi_flag(sbi, SBI_IS_WRITABLE); + } + + /* + * Turn on quotas which were not enabled for read-only mounts if + * filesystem has quota feature, so that they are updated correctly. + */ + return f2fs_enable_quota_files(sbi, readonly); +} + +static void f2fs_recover_quota_end(struct f2fs_sb_info *sbi, + bool quota_enabled) +{ + if (quota_enabled) + f2fs_quota_off_umount(sbi->sb); + + if (is_sbi_flag_set(sbi, SBI_IS_WRITABLE)) { + clear_sbi_flag(sbi, SBI_IS_WRITABLE); + sbi->sb->s_flags |= SB_RDONLY; + } +} + +/* Read data from quotafile */ +static ssize_t f2fs_quota_read(struct super_block *sb, int type, char *data, + size_t len, loff_t off) +{ + struct inode *inode = sb_dqopt(sb)->files[type]; + struct address_space *mapping = inode->i_mapping; + int tocopy; + size_t toread; + loff_t i_size = i_size_read(inode); + + if (off > i_size) + return 0; + + if (off + len > i_size) + len = i_size - off; + toread = len; + while (toread > 0) { + struct folio *folio; + size_t offset; + +repeat: + folio = mapping_read_folio_gfp(mapping, off >> PAGE_SHIFT, + GFP_NOFS); + if (IS_ERR(folio)) { + if (PTR_ERR(folio) == -ENOMEM) { + memalloc_retry_wait(GFP_NOFS); + goto repeat; + } + set_sbi_flag(F2FS_SB(sb), SBI_QUOTA_NEED_REPAIR); + return PTR_ERR(folio); + } + offset = offset_in_folio(folio, off); + tocopy = min(folio_size(folio) - offset, toread); + + folio_lock(folio); + + if (unlikely(folio->mapping != mapping)) { + f2fs_folio_put(folio, true); + goto repeat; + } + + /* + * should never happen, just leave f2fs_bug_on() here to catch + * any potential bug. + */ + f2fs_bug_on(F2FS_SB(sb), !folio_test_uptodate(folio)); + + memcpy_from_folio(data, folio, offset, tocopy); + f2fs_folio_put(folio, true); + + toread -= tocopy; + data += tocopy; + off += tocopy; + } + return len; +} + +/* Write to quotafile */ +static ssize_t f2fs_quota_write(struct super_block *sb, int type, + const char *data, size_t len, loff_t off) +{ + struct inode *inode = sb_dqopt(sb)->files[type]; + struct address_space *mapping = inode->i_mapping; + const struct address_space_operations *a_ops = mapping->a_ops; + int offset = off & (sb->s_blocksize - 1); + size_t towrite = len; + struct folio *folio; + void *fsdata = NULL; + int err = 0; + int tocopy; + + while (towrite > 0) { + tocopy = min_t(unsigned long, sb->s_blocksize - offset, + towrite); +retry: + err = a_ops->write_begin(NULL, mapping, off, tocopy, + &folio, &fsdata); + if (unlikely(err)) { + if (err == -ENOMEM) { + memalloc_retry_wait(GFP_NOFS); + goto retry; + } + set_sbi_flag(F2FS_SB(sb), SBI_QUOTA_NEED_REPAIR); + break; + } + + memcpy_to_folio(folio, offset_in_folio(folio, off), data, tocopy); + + a_ops->write_end(NULL, mapping, off, tocopy, tocopy, + folio, fsdata); + offset = 0; + towrite -= tocopy; + off += tocopy; + data += tocopy; + cond_resched(); + } + + if (len == towrite) + return err; + inode_set_mtime_to_ts(inode, inode_set_ctime_current(inode)); + f2fs_mark_inode_dirty_sync(inode, false); + return len - towrite; +} + +int f2fs_dquot_initialize(struct inode *inode) +{ + if (time_to_inject(F2FS_I_SB(inode), FAULT_DQUOT_INIT)) + return -ESRCH; + + return dquot_initialize(inode); +} + +static struct dquot __rcu **f2fs_get_dquots(struct inode *inode) +{ + return F2FS_I(inode)->i_dquot; +} + +static qsize_t *f2fs_get_reserved_space(struct inode *inode) +{ + return &F2FS_I(inode)->i_reserved_quota; +} + +static int f2fs_quota_on_mount(struct f2fs_sb_info *sbi, int type) +{ + if (is_set_ckpt_flags(sbi, CP_QUOTA_NEED_FSCK_FLAG)) { + f2fs_err(sbi, "quota sysfile may be corrupted, skip loading it"); + return 0; + } + + return dquot_quota_on_mount(sbi->sb, F2FS_OPTION(sbi).s_qf_names[type], + F2FS_OPTION(sbi).s_jquota_fmt, type); +} + +int f2fs_enable_quota_files(struct f2fs_sb_info *sbi, bool rdonly) +{ + int enabled = 0; + int i, err; + + if (f2fs_sb_has_quota_ino(sbi) && rdonly) { + err = f2fs_enable_quotas(sbi->sb); + if (err) { + f2fs_err(sbi, "Cannot turn on quota_ino: %d", err); + return 0; + } + return 1; + } + + for (i = 0; i < MAXQUOTAS; i++) { + if (F2FS_OPTION(sbi).s_qf_names[i]) { + err = f2fs_quota_on_mount(sbi, i); + if (!err) { + enabled = 1; + continue; + } + f2fs_err(sbi, "Cannot turn on quotas: %d on %d", + err, i); + } + } + return enabled; +} + +static int f2fs_quota_enable(struct super_block *sb, int type, int format_id, + unsigned int flags) +{ + struct inode *qf_inode; + unsigned long qf_inum; + unsigned long qf_flag = F2FS_QUOTA_DEFAULT_FL; + int err; + + BUG_ON(!f2fs_sb_has_quota_ino(F2FS_SB(sb))); + + qf_inum = f2fs_qf_ino(sb, type); + if (!qf_inum) + return -EPERM; + + qf_inode = f2fs_iget(sb, qf_inum); + if (IS_ERR(qf_inode)) { + f2fs_err(F2FS_SB(sb), "Bad quota inode %u:%lu", type, qf_inum); + return PTR_ERR(qf_inode); + } + + /* Don't account quota for quota files to avoid recursion */ + inode_lock(qf_inode); + qf_inode->i_flags |= S_NOQUOTA; + + if ((F2FS_I(qf_inode)->i_flags & qf_flag) != qf_flag) { + F2FS_I(qf_inode)->i_flags |= qf_flag; + f2fs_set_inode_flags(qf_inode); + } + inode_unlock(qf_inode); + + err = dquot_load_quota_inode(qf_inode, type, format_id, flags); + iput(qf_inode); + return err; +} + +static int f2fs_enable_quotas(struct super_block *sb) +{ + struct f2fs_sb_info *sbi = F2FS_SB(sb); + int type, err = 0; + unsigned long qf_inum; + bool quota_mopt[MAXQUOTAS] = { + test_opt(sbi, USRQUOTA), + test_opt(sbi, GRPQUOTA), + test_opt(sbi, PRJQUOTA), + }; + + if (is_set_ckpt_flags(F2FS_SB(sb), CP_QUOTA_NEED_FSCK_FLAG)) { + f2fs_err(sbi, "quota file may be corrupted, skip loading it"); + return 0; + } + + sb_dqopt(sb)->flags |= DQUOT_QUOTA_SYS_FILE; + + for (type = 0; type < MAXQUOTAS; type++) { + qf_inum = f2fs_qf_ino(sb, type); + if (qf_inum) { + err = f2fs_quota_enable(sb, type, QFMT_VFS_V1, + DQUOT_USAGE_ENABLED | + (quota_mopt[type] ? DQUOT_LIMITS_ENABLED : 0)); + if (err) { + f2fs_err(sbi, "Failed to enable quota tracking (type=%d, err=%d). Please run fsck to fix.", + type, err); + for (type--; type >= 0; type--) + dquot_quota_off(sb, type); + set_sbi_flag(F2FS_SB(sb), + SBI_QUOTA_NEED_REPAIR); + return err; + } + } + } + return 0; +} + +static int f2fs_quota_sync_file(struct f2fs_sb_info *sbi, int type) +{ + struct quota_info *dqopt = sb_dqopt(sbi->sb); + struct address_space *mapping = dqopt->files[type]->i_mapping; + int ret = 0; + + ret = dquot_writeback_dquots(sbi->sb, type); + if (ret) + goto out; + + ret = filemap_fdatawrite(mapping); + if (ret) + goto out; + + /* if we are using journalled quota */ + if (is_journalled_quota(sbi)) + goto out; + + ret = filemap_fdatawait(mapping); + + truncate_inode_pages(&dqopt->files[type]->i_data, 0); +out: + if (ret) + set_sbi_flag(sbi, SBI_QUOTA_NEED_REPAIR); + return ret; +} + +int f2fs_do_quota_sync(struct super_block *sb, int type) +{ + struct f2fs_sb_info *sbi = F2FS_SB(sb); + struct quota_info *dqopt = sb_dqopt(sb); + int cnt; + int ret = 0; + + /* + * Now when everything is written we can discard the pagecache so + * that userspace sees the changes. + */ + for (cnt = 0; cnt < MAXQUOTAS; cnt++) { + + if (type != -1 && cnt != type) + continue; + + if (!sb_has_quota_active(sb, cnt)) + continue; + + if (!f2fs_sb_has_quota_ino(sbi)) + inode_lock(dqopt->files[cnt]); + + /* + * do_quotactl + * f2fs_quota_sync + * f2fs_down_read(quota_sem) + * dquot_writeback_dquots() + * f2fs_dquot_commit + * block_operation + * f2fs_down_read(quota_sem) + */ + f2fs_lock_op(sbi); + f2fs_down_read(&sbi->quota_sem); + + ret = f2fs_quota_sync_file(sbi, cnt); + + f2fs_up_read(&sbi->quota_sem); + f2fs_unlock_op(sbi); + + if (!f2fs_sb_has_quota_ino(sbi)) + inode_unlock(dqopt->files[cnt]); + + if (ret) + break; + } + return ret; +} + +static int f2fs_quota_sync(struct super_block *sb, int type) +{ + int ret; + + F2FS_SB(sb)->umount_lock_holder = current; + ret = f2fs_do_quota_sync(sb, type); + F2FS_SB(sb)->umount_lock_holder = NULL; + return ret; +} + +static int f2fs_quota_on(struct super_block *sb, int type, int format_id, + const struct path *path) +{ + struct inode *inode; + int err = 0; + + /* if quota sysfile exists, deny enabling quota with specific file */ + if (f2fs_sb_has_quota_ino(F2FS_SB(sb))) { + f2fs_err(F2FS_SB(sb), "quota sysfile already exists"); + return -EBUSY; + } + + if (path->dentry->d_sb != sb) + return -EXDEV; + + F2FS_SB(sb)->umount_lock_holder = current; + + err = f2fs_do_quota_sync(sb, type); + if (err) + goto out; + + inode = d_inode(path->dentry); + + err = filemap_fdatawrite(inode->i_mapping); + if (err) + goto out; + + err = filemap_fdatawait(inode->i_mapping); + if (err) + goto out; + + err = dquot_quota_on(sb, type, format_id, path); + if (err) + goto out; + + inode_lock(inode); + F2FS_I(inode)->i_flags |= F2FS_QUOTA_DEFAULT_FL; + f2fs_set_inode_flags(inode); + inode_unlock(inode); + f2fs_mark_inode_dirty_sync(inode, false); +out: + F2FS_SB(sb)->umount_lock_holder = NULL; + return err; +} + +static int __f2fs_quota_off(struct super_block *sb, int type) +{ + struct inode *inode = sb_dqopt(sb)->files[type]; + int err; + + if (!inode || !igrab(inode)) + return dquot_quota_off(sb, type); + + err = f2fs_do_quota_sync(sb, type); + if (err) + goto out_put; + + err = dquot_quota_off(sb, type); + if (err || f2fs_sb_has_quota_ino(F2FS_SB(sb))) + goto out_put; + + inode_lock(inode); + F2FS_I(inode)->i_flags &= ~F2FS_QUOTA_DEFAULT_FL; + f2fs_set_inode_flags(inode); + inode_unlock(inode); + f2fs_mark_inode_dirty_sync(inode, false); +out_put: + iput(inode); + return err; +} + +static int f2fs_quota_off(struct super_block *sb, int type) +{ + struct f2fs_sb_info *sbi = F2FS_SB(sb); + int err; + + F2FS_SB(sb)->umount_lock_holder = current; + + err = __f2fs_quota_off(sb, type); + + /* + * quotactl can shutdown journalled quota, result in inconsistence + * between quota record and fs data by following updates, tag the + * flag to let fsck be aware of it. + */ + if (is_journalled_quota(sbi)) + set_sbi_flag(sbi, SBI_QUOTA_NEED_REPAIR); + + F2FS_SB(sb)->umount_lock_holder = NULL; + return err; } -static struct super_operations f2fs_sops = { +void f2fs_quota_off_umount(struct super_block *sb) +{ + int type; + int err; + + for (type = 0; type < MAXQUOTAS; type++) { + err = __f2fs_quota_off(sb, type); + if (err) { + int ret = dquot_quota_off(sb, type); + + f2fs_err(F2FS_SB(sb), "Fail to turn off disk quota (type: %d, err: %d, ret:%d), Please run fsck to fix it.", + type, err, ret); + set_sbi_flag(F2FS_SB(sb), SBI_QUOTA_NEED_REPAIR); + } + } + /* + * In case of checkpoint=disable, we must flush quota blocks. + * This can cause NULL exception for node_inode in end_io, since + * put_super already dropped it. + */ + sync_filesystem(sb); +} + +static void f2fs_truncate_quota_inode_pages(struct super_block *sb) +{ + struct quota_info *dqopt = sb_dqopt(sb); + int type; + + for (type = 0; type < MAXQUOTAS; type++) { + if (!dqopt->files[type]) + continue; + f2fs_inode_synced(dqopt->files[type]); + } +} + +static int f2fs_dquot_commit(struct dquot *dquot) +{ + struct f2fs_sb_info *sbi = F2FS_SB(dquot->dq_sb); + int ret; + + f2fs_down_read_nested(&sbi->quota_sem, SINGLE_DEPTH_NESTING); + ret = dquot_commit(dquot); + if (ret < 0) + set_sbi_flag(sbi, SBI_QUOTA_NEED_REPAIR); + f2fs_up_read(&sbi->quota_sem); + return ret; +} + +static int f2fs_dquot_acquire(struct dquot *dquot) +{ + struct f2fs_sb_info *sbi = F2FS_SB(dquot->dq_sb); + int ret; + + f2fs_down_read(&sbi->quota_sem); + ret = dquot_acquire(dquot); + if (ret < 0) + set_sbi_flag(sbi, SBI_QUOTA_NEED_REPAIR); + f2fs_up_read(&sbi->quota_sem); + return ret; +} + +static int f2fs_dquot_release(struct dquot *dquot) +{ + struct f2fs_sb_info *sbi = F2FS_SB(dquot->dq_sb); + int ret = dquot_release(dquot); + + if (ret < 0) + set_sbi_flag(sbi, SBI_QUOTA_NEED_REPAIR); + return ret; +} + +static int f2fs_dquot_mark_dquot_dirty(struct dquot *dquot) +{ + struct super_block *sb = dquot->dq_sb; + struct f2fs_sb_info *sbi = F2FS_SB(sb); + int ret = dquot_mark_dquot_dirty(dquot); + + /* if we are using journalled quota */ + if (is_journalled_quota(sbi)) + set_sbi_flag(sbi, SBI_QUOTA_NEED_FLUSH); + + return ret; +} + +static int f2fs_dquot_commit_info(struct super_block *sb, int type) +{ + struct f2fs_sb_info *sbi = F2FS_SB(sb); + int ret = dquot_commit_info(sb, type); + + if (ret < 0) + set_sbi_flag(sbi, SBI_QUOTA_NEED_REPAIR); + return ret; +} + +static int f2fs_get_projid(struct inode *inode, kprojid_t *projid) +{ + *projid = F2FS_I(inode)->i_projid; + return 0; +} + +static const struct dquot_operations f2fs_quota_operations = { + .get_reserved_space = f2fs_get_reserved_space, + .write_dquot = f2fs_dquot_commit, + .acquire_dquot = f2fs_dquot_acquire, + .release_dquot = f2fs_dquot_release, + .mark_dirty = f2fs_dquot_mark_dquot_dirty, + .write_info = f2fs_dquot_commit_info, + .alloc_dquot = dquot_alloc, + .destroy_dquot = dquot_destroy, + .get_projid = f2fs_get_projid, + .get_next_id = dquot_get_next_id, +}; + +static const struct quotactl_ops f2fs_quotactl_ops = { + .quota_on = f2fs_quota_on, + .quota_off = f2fs_quota_off, + .quota_sync = f2fs_quota_sync, + .get_state = dquot_get_state, + .set_info = dquot_set_dqinfo, + .get_dqblk = dquot_get_dqblk, + .set_dqblk = dquot_set_dqblk, + .get_nextdqblk = dquot_get_next_dqblk, +}; +#else +int f2fs_dquot_initialize(struct inode *inode) +{ + return 0; +} + +int f2fs_do_quota_sync(struct super_block *sb, int type) +{ + return 0; +} + +void f2fs_quota_off_umount(struct super_block *sb) +{ +} +#endif + +static const struct super_operations f2fs_sops = { .alloc_inode = f2fs_alloc_inode, + .free_inode = f2fs_free_inode, .drop_inode = f2fs_drop_inode, - .destroy_inode = f2fs_destroy_inode, .write_inode = f2fs_write_inode, .dirty_inode = f2fs_dirty_inode, .show_options = f2fs_show_options, +#ifdef CONFIG_QUOTA + .quota_read = f2fs_quota_read, + .quota_write = f2fs_quota_write, + .get_dquots = f2fs_get_dquots, +#endif .evict_inode = f2fs_evict_inode, .put_super = f2fs_put_super, .sync_fs = f2fs_sync_fs, .freeze_fs = f2fs_freeze, .unfreeze_fs = f2fs_unfreeze, .statfs = f2fs_statfs, - .remount_fs = f2fs_remount, + .shutdown = f2fs_shutdown, }; +#ifdef CONFIG_FS_ENCRYPTION +static int f2fs_get_context(struct inode *inode, void *ctx, size_t len) +{ + return f2fs_getxattr(inode, F2FS_XATTR_INDEX_ENCRYPTION, + F2FS_XATTR_NAME_ENCRYPTION_CONTEXT, + ctx, len, NULL); +} + +static int f2fs_set_context(struct inode *inode, const void *ctx, size_t len, + void *fs_data) +{ + struct f2fs_sb_info *sbi = F2FS_I_SB(inode); + + /* + * Encrypting the root directory is not allowed because fsck + * expects lost+found directory to exist and remain unencrypted + * if LOST_FOUND feature is enabled. + * + */ + if (f2fs_sb_has_lost_found(sbi) && + inode->i_ino == F2FS_ROOT_INO(sbi)) + return -EPERM; + + return f2fs_setxattr(inode, F2FS_XATTR_INDEX_ENCRYPTION, + F2FS_XATTR_NAME_ENCRYPTION_CONTEXT, + ctx, len, fs_data, XATTR_CREATE); +} + +static const union fscrypt_policy *f2fs_get_dummy_policy(struct super_block *sb) +{ + return F2FS_OPTION(F2FS_SB(sb)).dummy_enc_policy.policy; +} + +static bool f2fs_has_stable_inodes(struct super_block *sb) +{ + return true; +} + +static struct block_device **f2fs_get_devices(struct super_block *sb, + unsigned int *num_devs) +{ + struct f2fs_sb_info *sbi = F2FS_SB(sb); + struct block_device **devs; + int i; + + if (!f2fs_is_multi_device(sbi)) + return NULL; + + devs = kmalloc_array(sbi->s_ndevs, sizeof(*devs), GFP_KERNEL); + if (!devs) + return ERR_PTR(-ENOMEM); + + for (i = 0; i < sbi->s_ndevs; i++) + devs[i] = FDEV(i).bdev; + *num_devs = sbi->s_ndevs; + return devs; +} + +static const struct fscrypt_operations f2fs_cryptops = { + .inode_info_offs = (int)offsetof(struct f2fs_inode_info, i_crypt_info) - + (int)offsetof(struct f2fs_inode_info, vfs_inode), + .needs_bounce_pages = 1, + .has_32bit_inodes = 1, + .supports_subblock_data_units = 1, + .legacy_key_prefix = "f2fs:", + .get_context = f2fs_get_context, + .set_context = f2fs_set_context, + .get_dummy_policy = f2fs_get_dummy_policy, + .empty_dir = f2fs_empty_dir, + .has_stable_inodes = f2fs_has_stable_inodes, + .get_devices = f2fs_get_devices, +}; +#endif /* CONFIG_FS_ENCRYPTION */ + static struct inode *f2fs_nfs_get_inode(struct super_block *sb, u64 ino, u32 generation) { struct f2fs_sb_info *sbi = F2FS_SB(sb); struct inode *inode; - if (ino < F2FS_ROOT_INO(sbi)) + if (f2fs_check_nid_range(sbi, ino)) return ERR_PTR(-ESTALE); /* @@ -425,7 +3723,7 @@ static struct inode *f2fs_nfs_get_inode(struct super_block *sb, inode = f2fs_iget(sb, ino); if (IS_ERR(inode)) return ERR_CAST(inode); - if (generation && inode->i_generation != generation) { + if (unlikely(generation && inode->i_generation != generation)) { /* we didn't find the right inode.. */ iput(inode); return ERR_PTR(-ESTALE); @@ -448,15 +3746,28 @@ static struct dentry *f2fs_fh_to_parent(struct super_block *sb, struct fid *fid, } static const struct export_operations f2fs_export_ops = { + .encode_fh = generic_encode_ino32_fh, .fh_to_dentry = f2fs_fh_to_dentry, .fh_to_parent = f2fs_fh_to_parent, .get_parent = f2fs_get_parent, }; -static loff_t max_file_size(unsigned bits) +loff_t max_file_blocks(struct inode *inode) { - loff_t result = ADDRS_PER_INODE; - loff_t leaf_count = ADDRS_PER_BLOCK; + loff_t result = 0; + loff_t leaf_count; + + /* + * note: previously, result is equal to (DEF_ADDRS_PER_INODE - + * DEFAULT_INLINE_XATTR_ADDRS), but now f2fs try to reserve more + * space in inode.i_addr, it will be more safe to reassign + * result as zero. + */ + + if (inode && f2fs_compressed_file(inode)) + leaf_count = ADDRS_PER_BLOCK(inode); + else + leaf_count = DEF_ADDRS_PER_BLOCK; /* two direct node blocks */ result += (leaf_count * 2); @@ -469,70 +3780,489 @@ static loff_t max_file_size(unsigned bits) leaf_count *= NIDS_PER_BLOCK; result += leaf_count; - result <<= bits; + /* + * For compatibility with FSCRYPT_POLICY_FLAG_IV_INO_LBLK_{64,32} with + * a 4K crypto data unit, we must restrict the max filesize to what can + * fit within U32_MAX + 1 data units. + */ + + result = umin(result, F2FS_BYTES_TO_BLK(((loff_t)U32_MAX + 1) * 4096)); + return result; } -static int sanity_check_raw_super(struct super_block *sb, - struct f2fs_super_block *raw_super) +static int __f2fs_commit_super(struct f2fs_sb_info *sbi, struct folio *folio, + pgoff_t index, bool update) { - unsigned int blocksize; + struct bio *bio; + /* it's rare case, we can do fua all the time */ + blk_opf_t opf = REQ_OP_WRITE | REQ_SYNC | REQ_PREFLUSH | REQ_FUA; + int ret; - if (F2FS_SUPER_MAGIC != le32_to_cpu(raw_super->magic)) { - f2fs_msg(sb, KERN_INFO, - "Magic Mismatch, valid(0x%x) - read(0x%x)", - F2FS_SUPER_MAGIC, le32_to_cpu(raw_super->magic)); - return 1; + folio_lock(folio); + folio_wait_writeback(folio); + if (update) + memcpy(F2FS_SUPER_BLOCK(folio, index), F2FS_RAW_SUPER(sbi), + sizeof(struct f2fs_super_block)); + folio_mark_dirty(folio); + folio_clear_dirty_for_io(folio); + folio_start_writeback(folio); + folio_unlock(folio); + + bio = bio_alloc(sbi->sb->s_bdev, 1, opf, GFP_NOFS); + + /* it doesn't need to set crypto context for superblock update */ + bio->bi_iter.bi_sector = SECTOR_FROM_BLOCK(folio->index); + + if (!bio_add_folio(bio, folio, folio_size(folio), 0)) + f2fs_bug_on(sbi, 1); + + ret = submit_bio_wait(bio); + bio_put(bio); + folio_end_writeback(folio); + + return ret; +} + +static inline bool sanity_check_area_boundary(struct f2fs_sb_info *sbi, + struct folio *folio, pgoff_t index) +{ + struct f2fs_super_block *raw_super = F2FS_SUPER_BLOCK(folio, index); + struct super_block *sb = sbi->sb; + u32 segment0_blkaddr = le32_to_cpu(raw_super->segment0_blkaddr); + u32 cp_blkaddr = le32_to_cpu(raw_super->cp_blkaddr); + u32 sit_blkaddr = le32_to_cpu(raw_super->sit_blkaddr); + u32 nat_blkaddr = le32_to_cpu(raw_super->nat_blkaddr); + u32 ssa_blkaddr = le32_to_cpu(raw_super->ssa_blkaddr); + u32 main_blkaddr = le32_to_cpu(raw_super->main_blkaddr); + u32 segment_count_ckpt = le32_to_cpu(raw_super->segment_count_ckpt); + u32 segment_count_sit = le32_to_cpu(raw_super->segment_count_sit); + u32 segment_count_nat = le32_to_cpu(raw_super->segment_count_nat); + u32 segment_count_ssa = le32_to_cpu(raw_super->segment_count_ssa); + u32 segment_count_main = le32_to_cpu(raw_super->segment_count_main); + u32 segment_count = le32_to_cpu(raw_super->segment_count); + u32 log_blocks_per_seg = le32_to_cpu(raw_super->log_blocks_per_seg); + u64 main_end_blkaddr = main_blkaddr + + ((u64)segment_count_main << log_blocks_per_seg); + u64 seg_end_blkaddr = segment0_blkaddr + + ((u64)segment_count << log_blocks_per_seg); + + if (segment0_blkaddr != cp_blkaddr) { + f2fs_info(sbi, "Mismatch start address, segment0(%u) cp_blkaddr(%u)", + segment0_blkaddr, cp_blkaddr); + return true; } - /* Currently, support only 4KB page cache size */ - if (F2FS_BLKSIZE != PAGE_CACHE_SIZE) { - f2fs_msg(sb, KERN_INFO, - "Invalid page_cache_size (%lu), supports only 4KB\n", - PAGE_CACHE_SIZE); - return 1; + if (cp_blkaddr + (segment_count_ckpt << log_blocks_per_seg) != + sit_blkaddr) { + f2fs_info(sbi, "Wrong CP boundary, start(%u) end(%u) blocks(%u)", + cp_blkaddr, sit_blkaddr, + segment_count_ckpt << log_blocks_per_seg); + return true; } - /* Currently, support only 4KB block size */ - blocksize = 1 << le32_to_cpu(raw_super->log_blocksize); - if (blocksize != F2FS_BLKSIZE) { - f2fs_msg(sb, KERN_INFO, - "Invalid blocksize (%u), supports only 4KB\n", - blocksize); - return 1; + if (sit_blkaddr + (segment_count_sit << log_blocks_per_seg) != + nat_blkaddr) { + f2fs_info(sbi, "Wrong SIT boundary, start(%u) end(%u) blocks(%u)", + sit_blkaddr, nat_blkaddr, + segment_count_sit << log_blocks_per_seg); + return true; } - if (le32_to_cpu(raw_super->log_sectorsize) != - F2FS_LOG_SECTOR_SIZE) { - f2fs_msg(sb, KERN_INFO, "Invalid log sectorsize"); - return 1; + if (nat_blkaddr + (segment_count_nat << log_blocks_per_seg) != + ssa_blkaddr) { + f2fs_info(sbi, "Wrong NAT boundary, start(%u) end(%u) blocks(%u)", + nat_blkaddr, ssa_blkaddr, + segment_count_nat << log_blocks_per_seg); + return true; } - if (le32_to_cpu(raw_super->log_sectors_per_block) != - F2FS_LOG_SECTORS_PER_BLOCK) { - f2fs_msg(sb, KERN_INFO, "Invalid log sectors per block"); - return 1; + + if (ssa_blkaddr + (segment_count_ssa << log_blocks_per_seg) != + main_blkaddr) { + f2fs_info(sbi, "Wrong SSA boundary, start(%u) end(%u) blocks(%u)", + ssa_blkaddr, main_blkaddr, + segment_count_ssa << log_blocks_per_seg); + return true; + } + + if (main_end_blkaddr > seg_end_blkaddr) { + f2fs_info(sbi, "Wrong MAIN_AREA boundary, start(%u) end(%llu) block(%u)", + main_blkaddr, seg_end_blkaddr, + segment_count_main << log_blocks_per_seg); + return true; + } else if (main_end_blkaddr < seg_end_blkaddr) { + int err = 0; + char *res; + + /* fix in-memory information all the time */ + raw_super->segment_count = cpu_to_le32((main_end_blkaddr - + segment0_blkaddr) >> log_blocks_per_seg); + + if (f2fs_readonly(sb) || f2fs_hw_is_readonly(sbi)) { + set_sbi_flag(sbi, SBI_NEED_SB_WRITE); + res = "internally"; + } else { + err = __f2fs_commit_super(sbi, folio, index, false); + res = err ? "failed" : "done"; + } + f2fs_info(sbi, "Fix alignment : %s, start(%u) end(%llu) block(%u)", + res, main_blkaddr, seg_end_blkaddr, + segment_count_main << log_blocks_per_seg); + if (err) + return true; + } + return false; +} + +static int sanity_check_raw_super(struct f2fs_sb_info *sbi, + struct folio *folio, pgoff_t index) +{ + block_t segment_count, segs_per_sec, secs_per_zone, segment_count_main; + block_t total_sections, blocks_per_seg; + struct f2fs_super_block *raw_super = F2FS_SUPER_BLOCK(folio, index); + size_t crc_offset = 0; + __u32 crc = 0; + + if (le32_to_cpu(raw_super->magic) != F2FS_SUPER_MAGIC) { + f2fs_info(sbi, "Magic Mismatch, valid(0x%x) - read(0x%x)", + F2FS_SUPER_MAGIC, le32_to_cpu(raw_super->magic)); + return -EINVAL; + } + + /* Check checksum_offset and crc in superblock */ + if (__F2FS_HAS_FEATURE(raw_super, F2FS_FEATURE_SB_CHKSUM)) { + crc_offset = le32_to_cpu(raw_super->checksum_offset); + if (crc_offset != + offsetof(struct f2fs_super_block, crc)) { + f2fs_info(sbi, "Invalid SB checksum offset: %zu", + crc_offset); + return -EFSCORRUPTED; + } + crc = le32_to_cpu(raw_super->crc); + if (crc != f2fs_crc32(raw_super, crc_offset)) { + f2fs_info(sbi, "Invalid SB checksum value: %u", crc); + return -EFSCORRUPTED; + } + } + + /* only support block_size equals to PAGE_SIZE */ + if (le32_to_cpu(raw_super->log_blocksize) != F2FS_BLKSIZE_BITS) { + f2fs_info(sbi, "Invalid log_blocksize (%u), supports only %u", + le32_to_cpu(raw_super->log_blocksize), + F2FS_BLKSIZE_BITS); + return -EFSCORRUPTED; + } + + /* check log blocks per segment */ + if (le32_to_cpu(raw_super->log_blocks_per_seg) != 9) { + f2fs_info(sbi, "Invalid log blocks per segment (%u)", + le32_to_cpu(raw_super->log_blocks_per_seg)); + return -EFSCORRUPTED; + } + + /* Currently, support 512/1024/2048/4096/16K bytes sector size */ + if (le32_to_cpu(raw_super->log_sectorsize) > + F2FS_MAX_LOG_SECTOR_SIZE || + le32_to_cpu(raw_super->log_sectorsize) < + F2FS_MIN_LOG_SECTOR_SIZE) { + f2fs_info(sbi, "Invalid log sectorsize (%u)", + le32_to_cpu(raw_super->log_sectorsize)); + return -EFSCORRUPTED; + } + if (le32_to_cpu(raw_super->log_sectors_per_block) + + le32_to_cpu(raw_super->log_sectorsize) != + F2FS_MAX_LOG_SECTOR_SIZE) { + f2fs_info(sbi, "Invalid log sectors per block(%u) log sectorsize(%u)", + le32_to_cpu(raw_super->log_sectors_per_block), + le32_to_cpu(raw_super->log_sectorsize)); + return -EFSCORRUPTED; + } + + segment_count = le32_to_cpu(raw_super->segment_count); + segment_count_main = le32_to_cpu(raw_super->segment_count_main); + segs_per_sec = le32_to_cpu(raw_super->segs_per_sec); + secs_per_zone = le32_to_cpu(raw_super->secs_per_zone); + total_sections = le32_to_cpu(raw_super->section_count); + + /* blocks_per_seg should be 512, given the above check */ + blocks_per_seg = BIT(le32_to_cpu(raw_super->log_blocks_per_seg)); + + if (segment_count > F2FS_MAX_SEGMENT || + segment_count < F2FS_MIN_SEGMENTS) { + f2fs_info(sbi, "Invalid segment count (%u)", segment_count); + return -EFSCORRUPTED; + } + + if (total_sections > segment_count_main || total_sections < 1 || + segs_per_sec > segment_count || !segs_per_sec) { + f2fs_info(sbi, "Invalid segment/section count (%u, %u x %u)", + segment_count, total_sections, segs_per_sec); + return -EFSCORRUPTED; + } + + if (segment_count_main != total_sections * segs_per_sec) { + f2fs_info(sbi, "Invalid segment/section count (%u != %u * %u)", + segment_count_main, total_sections, segs_per_sec); + return -EFSCORRUPTED; + } + + if ((segment_count / segs_per_sec) < total_sections) { + f2fs_info(sbi, "Small segment_count (%u < %u * %u)", + segment_count, segs_per_sec, total_sections); + return -EFSCORRUPTED; + } + + if (segment_count > (le64_to_cpu(raw_super->block_count) >> 9)) { + f2fs_info(sbi, "Wrong segment_count / block_count (%u > %llu)", + segment_count, le64_to_cpu(raw_super->block_count)); + return -EFSCORRUPTED; + } + + if (RDEV(0).path[0]) { + block_t dev_seg_count = le32_to_cpu(RDEV(0).total_segments); + int i = 1; + + while (i < MAX_DEVICES && RDEV(i).path[0]) { + dev_seg_count += le32_to_cpu(RDEV(i).total_segments); + i++; + } + if (segment_count != dev_seg_count) { + f2fs_info(sbi, "Segment count (%u) mismatch with total segments from devices (%u)", + segment_count, dev_seg_count); + return -EFSCORRUPTED; + } + } else { + if (__F2FS_HAS_FEATURE(raw_super, F2FS_FEATURE_BLKZONED) && + !bdev_is_zoned(sbi->sb->s_bdev)) { + f2fs_info(sbi, "Zoned block device path is missing"); + return -EFSCORRUPTED; + } + } + + if (secs_per_zone > total_sections || !secs_per_zone) { + f2fs_info(sbi, "Wrong secs_per_zone / total_sections (%u, %u)", + secs_per_zone, total_sections); + return -EFSCORRUPTED; + } + if (le32_to_cpu(raw_super->extension_count) > F2FS_MAX_EXTENSION || + raw_super->hot_ext_count > F2FS_MAX_EXTENSION || + (le32_to_cpu(raw_super->extension_count) + + raw_super->hot_ext_count) > F2FS_MAX_EXTENSION) { + f2fs_info(sbi, "Corrupted extension count (%u + %u > %u)", + le32_to_cpu(raw_super->extension_count), + raw_super->hot_ext_count, + F2FS_MAX_EXTENSION); + return -EFSCORRUPTED; + } + + if (le32_to_cpu(raw_super->cp_payload) >= + (blocks_per_seg - F2FS_CP_PACKS - + NR_CURSEG_PERSIST_TYPE)) { + f2fs_info(sbi, "Insane cp_payload (%u >= %u)", + le32_to_cpu(raw_super->cp_payload), + blocks_per_seg - F2FS_CP_PACKS - + NR_CURSEG_PERSIST_TYPE); + return -EFSCORRUPTED; + } + + /* check reserved ino info */ + if (le32_to_cpu(raw_super->node_ino) != 1 || + le32_to_cpu(raw_super->meta_ino) != 2 || + le32_to_cpu(raw_super->root_ino) != 3) { + f2fs_info(sbi, "Invalid Fs Meta Ino: node(%u) meta(%u) root(%u)", + le32_to_cpu(raw_super->node_ino), + le32_to_cpu(raw_super->meta_ino), + le32_to_cpu(raw_super->root_ino)); + return -EFSCORRUPTED; + } + + /* check CP/SIT/NAT/SSA/MAIN_AREA area boundary */ + if (sanity_check_area_boundary(sbi, folio, index)) + return -EFSCORRUPTED; + + /* + * Check for legacy summary layout on 16KB+ block devices. + * Modern f2fs-tools packs multiple 4KB summary areas into one block, + * whereas legacy versions used one block per summary, leading + * to a much larger SSA. + */ + if (SUMS_PER_BLOCK > 1 && + !(__F2FS_HAS_FEATURE(raw_super, F2FS_FEATURE_PACKED_SSA))) { + f2fs_info(sbi, "Error: Device formatted with a legacy version. " + "Please reformat with a tool supporting the packed ssa " + "feature for block sizes larger than 4kb."); + return -EOPNOTSUPP; } + return 0; } -static int sanity_check_ckpt(struct f2fs_sb_info *sbi) +int f2fs_sanity_check_ckpt(struct f2fs_sb_info *sbi) { unsigned int total, fsmeta; struct f2fs_super_block *raw_super = F2FS_RAW_SUPER(sbi); struct f2fs_checkpoint *ckpt = F2FS_CKPT(sbi); + unsigned int ovp_segments, reserved_segments; + unsigned int main_segs, blocks_per_seg; + unsigned int sit_segs, nat_segs; + unsigned int sit_bitmap_size, nat_bitmap_size; + unsigned int log_blocks_per_seg; + unsigned int segment_count_main; + unsigned int cp_pack_start_sum, cp_payload; + block_t user_block_count, valid_user_blocks; + block_t avail_node_count, valid_node_count; + unsigned int nat_blocks, nat_bits_bytes, nat_bits_blocks; + unsigned int sit_blk_cnt; + int i, j; total = le32_to_cpu(raw_super->segment_count); fsmeta = le32_to_cpu(raw_super->segment_count_ckpt); - fsmeta += le32_to_cpu(raw_super->segment_count_sit); - fsmeta += le32_to_cpu(raw_super->segment_count_nat); + sit_segs = le32_to_cpu(raw_super->segment_count_sit); + fsmeta += sit_segs; + nat_segs = le32_to_cpu(raw_super->segment_count_nat); + fsmeta += nat_segs; fsmeta += le32_to_cpu(ckpt->rsvd_segment_count); fsmeta += le32_to_cpu(raw_super->segment_count_ssa); - if (fsmeta >= total) + if (unlikely(fsmeta >= total)) + return 1; + + ovp_segments = le32_to_cpu(ckpt->overprov_segment_count); + reserved_segments = le32_to_cpu(ckpt->rsvd_segment_count); + + if (!f2fs_sb_has_readonly(sbi) && + unlikely(fsmeta < F2FS_MIN_META_SEGMENTS || + ovp_segments == 0 || reserved_segments == 0)) { + f2fs_err(sbi, "Wrong layout: check mkfs.f2fs version"); + return 1; + } + user_block_count = le64_to_cpu(ckpt->user_block_count); + segment_count_main = le32_to_cpu(raw_super->segment_count_main) + + (f2fs_sb_has_readonly(sbi) ? 1 : 0); + log_blocks_per_seg = le32_to_cpu(raw_super->log_blocks_per_seg); + if (!user_block_count || user_block_count >= + segment_count_main << log_blocks_per_seg) { + f2fs_err(sbi, "Wrong user_block_count: %u", + user_block_count); + return 1; + } + + valid_user_blocks = le64_to_cpu(ckpt->valid_block_count); + if (valid_user_blocks > user_block_count) { + f2fs_err(sbi, "Wrong valid_user_blocks: %u, user_block_count: %u", + valid_user_blocks, user_block_count); + return 1; + } + + valid_node_count = le32_to_cpu(ckpt->valid_node_count); + avail_node_count = sbi->total_node_count - F2FS_RESERVED_NODE_NUM; + if (valid_node_count > avail_node_count) { + f2fs_err(sbi, "Wrong valid_node_count: %u, avail_node_count: %u", + valid_node_count, avail_node_count); + return 1; + } + + main_segs = le32_to_cpu(raw_super->segment_count_main); + blocks_per_seg = BLKS_PER_SEG(sbi); + + for (i = 0; i < NR_CURSEG_NODE_TYPE; i++) { + if (le32_to_cpu(ckpt->cur_node_segno[i]) >= main_segs || + le16_to_cpu(ckpt->cur_node_blkoff[i]) >= blocks_per_seg) + return 1; + + if (f2fs_sb_has_readonly(sbi)) + goto check_data; + + for (j = i + 1; j < NR_CURSEG_NODE_TYPE; j++) { + if (le32_to_cpu(ckpt->cur_node_segno[i]) == + le32_to_cpu(ckpt->cur_node_segno[j])) { + f2fs_err(sbi, "Node segment (%u, %u) has the same segno: %u", + i, j, + le32_to_cpu(ckpt->cur_node_segno[i])); + return 1; + } + } + } +check_data: + for (i = 0; i < NR_CURSEG_DATA_TYPE; i++) { + if (le32_to_cpu(ckpt->cur_data_segno[i]) >= main_segs || + le16_to_cpu(ckpt->cur_data_blkoff[i]) >= blocks_per_seg) + return 1; + + if (f2fs_sb_has_readonly(sbi)) + goto skip_cross; + + for (j = i + 1; j < NR_CURSEG_DATA_TYPE; j++) { + if (le32_to_cpu(ckpt->cur_data_segno[i]) == + le32_to_cpu(ckpt->cur_data_segno[j])) { + f2fs_err(sbi, "Data segment (%u, %u) has the same segno: %u", + i, j, + le32_to_cpu(ckpt->cur_data_segno[i])); + return 1; + } + } + } + for (i = 0; i < NR_CURSEG_NODE_TYPE; i++) { + for (j = 0; j < NR_CURSEG_DATA_TYPE; j++) { + if (le32_to_cpu(ckpt->cur_node_segno[i]) == + le32_to_cpu(ckpt->cur_data_segno[j])) { + f2fs_err(sbi, "Node segment (%u) and Data segment (%u) has the same segno: %u", + i, j, + le32_to_cpu(ckpt->cur_node_segno[i])); + return 1; + } + } + } +skip_cross: + sit_bitmap_size = le32_to_cpu(ckpt->sit_ver_bitmap_bytesize); + nat_bitmap_size = le32_to_cpu(ckpt->nat_ver_bitmap_bytesize); + + if (sit_bitmap_size != ((sit_segs / 2) << log_blocks_per_seg) / 8 || + nat_bitmap_size != ((nat_segs / 2) << log_blocks_per_seg) / 8) { + f2fs_err(sbi, "Wrong bitmap size: sit: %u, nat:%u", + sit_bitmap_size, nat_bitmap_size); + return 1; + } + + sit_blk_cnt = DIV_ROUND_UP(main_segs, SIT_ENTRY_PER_BLOCK); + if (sit_bitmap_size * 8 < sit_blk_cnt) { + f2fs_err(sbi, "Wrong bitmap size: sit: %u, sit_blk_cnt:%u", + sit_bitmap_size, sit_blk_cnt); + return 1; + } + + cp_pack_start_sum = __start_sum_addr(sbi); + cp_payload = __cp_payload(sbi); + if (cp_pack_start_sum < cp_payload + 1 || + cp_pack_start_sum > blocks_per_seg - 1 - + NR_CURSEG_PERSIST_TYPE) { + f2fs_err(sbi, "Wrong cp_pack_start_sum: %u", + cp_pack_start_sum); return 1; + } + + if (__is_set_ckpt_flags(ckpt, CP_LARGE_NAT_BITMAP_FLAG) && + le32_to_cpu(ckpt->checksum_offset) != CP_MIN_CHKSUM_OFFSET) { + f2fs_warn(sbi, "using deprecated layout of large_nat_bitmap, " + "please run fsck v1.13.0 or higher to repair, chksum_offset: %u, " + "fixed with patch: \"f2fs-tools: relocate chksum_offset for large_nat_bitmap feature\"", + le32_to_cpu(ckpt->checksum_offset)); + return 1; + } + + nat_blocks = nat_segs << log_blocks_per_seg; + nat_bits_bytes = nat_blocks / BITS_PER_BYTE; + nat_bits_blocks = F2FS_BLK_ALIGN((nat_bits_bytes << 1) + 8); + if (__is_set_ckpt_flags(ckpt, CP_NAT_BITS_FLAG) && + (cp_payload + F2FS_CP_PACKS + + NR_CURSEG_PERSIST_TYPE + nat_bits_blocks >= blocks_per_seg)) { + f2fs_warn(sbi, "Insane cp_payload: %u, nat_bits_blocks: %u)", + cp_payload, nat_bits_blocks); + return 1; + } - if (is_set_ckpt_flags(ckpt, CP_ERROR_FLAG)) { - f2fs_msg(sbi->sb, KERN_ERR, "A bug case: need to run fsck"); + if (unlikely(f2fs_cp_error(sbi))) { + f2fs_err(sbi, "A bug case: need to run fsck"); return 1; } return 0; @@ -546,280 +4276,1219 @@ static void init_sb_info(struct f2fs_sb_info *sbi) sbi->log_sectors_per_block = le32_to_cpu(raw_super->log_sectors_per_block); sbi->log_blocksize = le32_to_cpu(raw_super->log_blocksize); - sbi->blocksize = 1 << sbi->log_blocksize; + sbi->blocksize = BIT(sbi->log_blocksize); sbi->log_blocks_per_seg = le32_to_cpu(raw_super->log_blocks_per_seg); - sbi->blocks_per_seg = 1 << sbi->log_blocks_per_seg; + sbi->blocks_per_seg = BIT(sbi->log_blocks_per_seg); sbi->segs_per_sec = le32_to_cpu(raw_super->segs_per_sec); sbi->secs_per_zone = le32_to_cpu(raw_super->secs_per_zone); sbi->total_sections = le32_to_cpu(raw_super->section_count); - sbi->total_node_count = - (le32_to_cpu(raw_super->segment_count_nat) / 2) - * sbi->blocks_per_seg * NAT_ENTRY_PER_BLOCK; - sbi->root_ino_num = le32_to_cpu(raw_super->root_ino); - sbi->node_ino_num = le32_to_cpu(raw_super->node_ino); - sbi->meta_ino_num = le32_to_cpu(raw_super->meta_ino); + sbi->total_node_count = SEGS_TO_BLKS(sbi, + ((le32_to_cpu(raw_super->segment_count_nat) / 2) * + NAT_ENTRY_PER_BLOCK)); + sbi->allocate_section_hint = le32_to_cpu(raw_super->section_count); + sbi->allocate_section_policy = ALLOCATE_FORWARD_NOHINT; + F2FS_ROOT_INO(sbi) = le32_to_cpu(raw_super->root_ino); + F2FS_NODE_INO(sbi) = le32_to_cpu(raw_super->node_ino); + F2FS_META_INO(sbi) = le32_to_cpu(raw_super->meta_ino); sbi->cur_victim_sec = NULL_SECNO; + sbi->gc_mode = GC_NORMAL; + sbi->next_victim_seg[BG_GC] = NULL_SEGNO; + sbi->next_victim_seg[FG_GC] = NULL_SEGNO; + sbi->max_victim_search = DEF_MAX_VICTIM_SEARCH; + sbi->migration_granularity = SEGS_PER_SEC(sbi); + sbi->migration_window_granularity = f2fs_sb_has_blkzoned(sbi) ? + DEF_MIGRATION_WINDOW_GRANULARITY_ZONED : SEGS_PER_SEC(sbi); + sbi->seq_file_ra_mul = MIN_RA_MUL; + sbi->max_fragment_chunk = DEF_FRAGMENT_SIZE; + sbi->max_fragment_hole = DEF_FRAGMENT_SIZE; + spin_lock_init(&sbi->gc_remaining_trials_lock); + atomic64_set(&sbi->current_atomic_write, 0); + + sbi->dir_level = DEF_DIR_LEVEL; + sbi->interval_time[CP_TIME] = DEF_CP_INTERVAL; + sbi->interval_time[REQ_TIME] = DEF_IDLE_INTERVAL; + sbi->interval_time[DISCARD_TIME] = DEF_IDLE_INTERVAL; + sbi->interval_time[GC_TIME] = DEF_IDLE_INTERVAL; + sbi->interval_time[DISABLE_TIME] = DEF_DISABLE_INTERVAL; + sbi->interval_time[ENABLE_TIME] = DEF_ENABLE_INTERVAL; + sbi->interval_time[UMOUNT_DISCARD_TIMEOUT] = + DEF_UMOUNT_DISCARD_TIMEOUT; + clear_sbi_flag(sbi, SBI_NEED_FSCK); for (i = 0; i < NR_COUNT_TYPE; i++) atomic_set(&sbi->nr_pages[i], 0); + + for (i = 0; i < META; i++) + atomic_set(&sbi->wb_sync_req[i], 0); + + INIT_LIST_HEAD(&sbi->s_list); + mutex_init(&sbi->umount_mutex); + init_f2fs_rwsem(&sbi->io_order_lock); + spin_lock_init(&sbi->cp_lock); + + sbi->dirty_device = 0; + spin_lock_init(&sbi->dev_lock); + + init_f2fs_rwsem(&sbi->sb_lock); + init_f2fs_rwsem(&sbi->pin_sem); } -static int validate_superblock(struct super_block *sb, - struct f2fs_super_block **raw_super, - struct buffer_head **raw_super_buf, sector_t block) +static int init_percpu_info(struct f2fs_sb_info *sbi) { - const char *super = (block == 0 ? "first" : "second"); + int err; - /* read f2fs raw super block */ - *raw_super_buf = sb_bread(sb, block); - if (!*raw_super_buf) { - f2fs_msg(sb, KERN_ERR, "unable to read %s superblock", - super); - return -EIO; + err = percpu_counter_init(&sbi->alloc_valid_block_count, 0, GFP_KERNEL); + if (err) + return err; + + err = percpu_counter_init(&sbi->rf_node_block_count, 0, GFP_KERNEL); + if (err) + goto err_valid_block; + + err = percpu_counter_init(&sbi->total_valid_inode_count, 0, + GFP_KERNEL); + if (err) + goto err_node_block; + return 0; + +err_node_block: + percpu_counter_destroy(&sbi->rf_node_block_count); +err_valid_block: + percpu_counter_destroy(&sbi->alloc_valid_block_count); + return err; +} + +#ifdef CONFIG_BLK_DEV_ZONED + +struct f2fs_report_zones_args { + struct f2fs_sb_info *sbi; + struct f2fs_dev_info *dev; +}; + +static int f2fs_report_zone_cb(struct blk_zone *zone, unsigned int idx, + void *data) +{ + struct f2fs_report_zones_args *rz_args = data; + block_t unusable_blocks = (zone->len - zone->capacity) >> + F2FS_LOG_SECTORS_PER_BLOCK; + + if (zone->type == BLK_ZONE_TYPE_CONVENTIONAL) + return 0; + + set_bit(idx, rz_args->dev->blkz_seq); + if (!rz_args->sbi->unusable_blocks_per_sec) { + rz_args->sbi->unusable_blocks_per_sec = unusable_blocks; + return 0; + } + if (rz_args->sbi->unusable_blocks_per_sec != unusable_blocks) { + f2fs_err(rz_args->sbi, "F2FS supports single zone capacity\n"); + return -EINVAL; } + return 0; +} - *raw_super = (struct f2fs_super_block *) - ((char *)(*raw_super_buf)->b_data + F2FS_SUPER_OFFSET); +static int init_blkz_info(struct f2fs_sb_info *sbi, int devi) +{ + struct block_device *bdev = FDEV(devi).bdev; + sector_t nr_sectors = bdev_nr_sectors(bdev); + struct f2fs_report_zones_args rep_zone_arg; + u64 zone_sectors; + unsigned int max_open_zones; + int ret; - /* sanity checking of raw super */ - if (!sanity_check_raw_super(sb, *raw_super)) + if (!f2fs_sb_has_blkzoned(sbi)) return 0; - f2fs_msg(sb, KERN_ERR, "Can't find a valid F2FS filesystem " - "in %s superblock", super); - return -EINVAL; + if (bdev_is_zoned(FDEV(devi).bdev)) { + max_open_zones = bdev_max_open_zones(bdev); + if (max_open_zones && (max_open_zones < sbi->max_open_zones)) + sbi->max_open_zones = max_open_zones; + if (sbi->max_open_zones < F2FS_OPTION(sbi).active_logs) { + f2fs_err(sbi, + "zoned: max open zones %u is too small, need at least %u open zones", + sbi->max_open_zones, F2FS_OPTION(sbi).active_logs); + return -EINVAL; + } + } + + zone_sectors = bdev_zone_sectors(bdev); + if (sbi->blocks_per_blkz && sbi->blocks_per_blkz != + SECTOR_TO_BLOCK(zone_sectors)) + return -EINVAL; + sbi->blocks_per_blkz = SECTOR_TO_BLOCK(zone_sectors); + FDEV(devi).nr_blkz = div_u64(SECTOR_TO_BLOCK(nr_sectors), + sbi->blocks_per_blkz); + if (nr_sectors & (zone_sectors - 1)) + FDEV(devi).nr_blkz++; + + FDEV(devi).blkz_seq = f2fs_kvzalloc(sbi, + BITS_TO_LONGS(FDEV(devi).nr_blkz) + * sizeof(unsigned long), + GFP_KERNEL); + if (!FDEV(devi).blkz_seq) + return -ENOMEM; + + rep_zone_arg.sbi = sbi; + rep_zone_arg.dev = &FDEV(devi); + + ret = blkdev_report_zones(bdev, 0, BLK_ALL_ZONES, f2fs_report_zone_cb, + &rep_zone_arg); + if (ret < 0) + return ret; + return 0; +} +#endif + +/* + * Read f2fs raw super block. + * Because we have two copies of super block, so read both of them + * to get the first valid one. If any one of them is broken, we pass + * them recovery flag back to the caller. + */ +static int read_raw_super_block(struct f2fs_sb_info *sbi, + struct f2fs_super_block **raw_super, + int *valid_super_block, int *recovery) +{ + struct super_block *sb = sbi->sb; + int block; + struct folio *folio; + struct f2fs_super_block *super; + int err = 0; + + super = kzalloc(sizeof(struct f2fs_super_block), GFP_KERNEL); + if (!super) + return -ENOMEM; + + for (block = 0; block < 2; block++) { + folio = read_mapping_folio(sb->s_bdev->bd_mapping, block, NULL); + if (IS_ERR(folio)) { + f2fs_err(sbi, "Unable to read %dth superblock", + block + 1); + err = PTR_ERR(folio); + *recovery = 1; + continue; + } + + /* sanity checking of raw super */ + err = sanity_check_raw_super(sbi, folio, block); + if (err) { + f2fs_err(sbi, "Can't find valid F2FS filesystem in %dth superblock", + block + 1); + folio_put(folio); + *recovery = 1; + continue; + } + + if (!*raw_super) { + memcpy(super, F2FS_SUPER_BLOCK(folio, block), + sizeof(*super)); + *valid_super_block = block; + *raw_super = super; + } + folio_put(folio); + } + + /* No valid superblock */ + if (!*raw_super) + kfree(super); + else + err = 0; + + return err; +} + +int f2fs_commit_super(struct f2fs_sb_info *sbi, bool recover) +{ + struct folio *folio; + pgoff_t index; + __u32 crc = 0; + int err; + + if ((recover && f2fs_readonly(sbi->sb)) || + f2fs_hw_is_readonly(sbi)) { + set_sbi_flag(sbi, SBI_NEED_SB_WRITE); + return -EROFS; + } + + /* we should update superblock crc here */ + if (!recover && f2fs_sb_has_sb_chksum(sbi)) { + crc = f2fs_crc32(F2FS_RAW_SUPER(sbi), + offsetof(struct f2fs_super_block, crc)); + F2FS_RAW_SUPER(sbi)->crc = cpu_to_le32(crc); + } + + /* write back-up superblock first */ + index = sbi->valid_super_block ? 0 : 1; + folio = read_mapping_folio(sbi->sb->s_bdev->bd_mapping, index, NULL); + if (IS_ERR(folio)) + return PTR_ERR(folio); + err = __f2fs_commit_super(sbi, folio, index, true); + folio_put(folio); + + /* if we are in recovery path, skip writing valid superblock */ + if (recover || err) + return err; + + /* write current valid superblock */ + index = sbi->valid_super_block; + folio = read_mapping_folio(sbi->sb->s_bdev->bd_mapping, index, NULL); + if (IS_ERR(folio)) + return PTR_ERR(folio); + err = __f2fs_commit_super(sbi, folio, index, true); + folio_put(folio); + return err; +} + +static void save_stop_reason(struct f2fs_sb_info *sbi, unsigned char reason) +{ + unsigned long flags; + + spin_lock_irqsave(&sbi->error_lock, flags); + if (sbi->stop_reason[reason] < GENMASK(BITS_PER_BYTE - 1, 0)) + sbi->stop_reason[reason]++; + spin_unlock_irqrestore(&sbi->error_lock, flags); +} + +static void f2fs_record_stop_reason(struct f2fs_sb_info *sbi) +{ + struct f2fs_super_block *raw_super = F2FS_RAW_SUPER(sbi); + unsigned long flags; + int err; + + f2fs_down_write(&sbi->sb_lock); + + spin_lock_irqsave(&sbi->error_lock, flags); + if (sbi->error_dirty) { + memcpy(F2FS_RAW_SUPER(sbi)->s_errors, sbi->errors, + MAX_F2FS_ERRORS); + sbi->error_dirty = false; + } + memcpy(raw_super->s_stop_reason, sbi->stop_reason, MAX_STOP_REASON); + spin_unlock_irqrestore(&sbi->error_lock, flags); + + err = f2fs_commit_super(sbi, false); + + f2fs_up_write(&sbi->sb_lock); + if (err) + f2fs_err_ratelimited(sbi, + "f2fs_commit_super fails to record stop_reason, err:%d", + err); +} + +void f2fs_save_errors(struct f2fs_sb_info *sbi, unsigned char flag) +{ + unsigned long flags; + + spin_lock_irqsave(&sbi->error_lock, flags); + if (!test_bit(flag, (unsigned long *)sbi->errors)) { + set_bit(flag, (unsigned long *)sbi->errors); + sbi->error_dirty = true; + } + spin_unlock_irqrestore(&sbi->error_lock, flags); +} + +void f2fs_handle_error(struct f2fs_sb_info *sbi, unsigned char error) +{ + f2fs_save_errors(sbi, error); + + if (!sbi->error_dirty) + return; + if (!test_bit(error, (unsigned long *)sbi->errors)) + return; + schedule_work(&sbi->s_error_work); +} + +static bool system_going_down(void) +{ + return system_state == SYSTEM_HALT || system_state == SYSTEM_POWER_OFF + || system_state == SYSTEM_RESTART; +} + +void f2fs_handle_critical_error(struct f2fs_sb_info *sbi, unsigned char reason) +{ + struct super_block *sb = sbi->sb; + bool shutdown = reason == STOP_CP_REASON_SHUTDOWN; + bool continue_fs = !shutdown && + F2FS_OPTION(sbi).errors == MOUNT_ERRORS_CONTINUE; + + set_ckpt_flags(sbi, CP_ERROR_FLAG); + + if (!f2fs_hw_is_readonly(sbi)) { + save_stop_reason(sbi, reason); + + /* + * always create an asynchronous task to record stop_reason + * in order to avoid potential deadlock when running into + * f2fs_record_stop_reason() synchronously. + */ + schedule_work(&sbi->s_error_work); + } + + /* + * We force ERRORS_RO behavior when system is rebooting. Otherwise we + * could panic during 'reboot -f' as the underlying device got already + * disabled. + */ + if (F2FS_OPTION(sbi).errors == MOUNT_ERRORS_PANIC && + !shutdown && !system_going_down() && + !is_sbi_flag_set(sbi, SBI_IS_SHUTDOWN)) + panic("F2FS-fs (device %s): panic forced after error\n", + sb->s_id); + + if (shutdown) + set_sbi_flag(sbi, SBI_IS_SHUTDOWN); + else + dump_stack(); + + /* + * Continue filesystem operators if errors=continue. Should not set + * RO by shutdown, since RO bypasses thaw_super which can hang the + * system. + */ + if (continue_fs || f2fs_readonly(sb) || shutdown) { + f2fs_warn(sbi, "Stopped filesystem due to reason: %d", reason); + return; + } + + f2fs_warn(sbi, "Remounting filesystem read-only"); + + /* + * We have already set CP_ERROR_FLAG flag to stop all updates + * to filesystem, so it doesn't need to set SB_RDONLY flag here + * because the flag should be set covered w/ sb->s_umount semaphore + * via remount procedure, otherwise, it will confuse code like + * freeze_super() which will lead to deadlocks and other problems. + */ +} + +static void f2fs_record_error_work(struct work_struct *work) +{ + struct f2fs_sb_info *sbi = container_of(work, + struct f2fs_sb_info, s_error_work); + + f2fs_record_stop_reason(sbi); } -static int f2fs_fill_super(struct super_block *sb, void *data, int silent) +static inline unsigned int get_first_seq_zone_segno(struct f2fs_sb_info *sbi) { +#ifdef CONFIG_BLK_DEV_ZONED + unsigned int zoneno, total_zones; + int devi; + + if (!f2fs_sb_has_blkzoned(sbi)) + return NULL_SEGNO; + + for (devi = 0; devi < sbi->s_ndevs; devi++) { + if (!bdev_is_zoned(FDEV(devi).bdev)) + continue; + + total_zones = GET_ZONE_FROM_SEG(sbi, FDEV(devi).total_segments); + + for (zoneno = 0; zoneno < total_zones; zoneno++) { + unsigned int segs, blks; + + if (!f2fs_zone_is_seq(sbi, devi, zoneno)) + continue; + + segs = GET_SEG_FROM_SEC(sbi, + zoneno * sbi->secs_per_zone); + blks = SEGS_TO_BLKS(sbi, segs); + return GET_SEGNO(sbi, FDEV(devi).start_blk + blks); + } + } +#endif + return NULL_SEGNO; +} + +static int f2fs_scan_devices(struct f2fs_sb_info *sbi) +{ + struct f2fs_super_block *raw_super = F2FS_RAW_SUPER(sbi); + unsigned int max_devices = MAX_DEVICES; + unsigned int logical_blksize; + blk_mode_t mode = sb_open_mode(sbi->sb->s_flags); + int i; + + /* Initialize single device information */ + if (!RDEV(0).path[0]) { + if (!bdev_is_zoned(sbi->sb->s_bdev)) + return 0; + max_devices = 1; + } + + /* + * Initialize multiple devices information, or single + * zoned block device information. + */ + sbi->devs = f2fs_kzalloc(sbi, + array_size(max_devices, + sizeof(struct f2fs_dev_info)), + GFP_KERNEL); + if (!sbi->devs) + return -ENOMEM; + + logical_blksize = bdev_logical_block_size(sbi->sb->s_bdev); + sbi->aligned_blksize = true; + sbi->bggc_io_aware = AWARE_ALL_IO; +#ifdef CONFIG_BLK_DEV_ZONED + sbi->max_open_zones = UINT_MAX; + sbi->blkzone_alloc_policy = BLKZONE_ALLOC_PRIOR_SEQ; + sbi->bggc_io_aware = AWARE_READ_IO; +#endif + + for (i = 0; i < max_devices; i++) { + if (max_devices == 1) { + FDEV(i).total_segments = + le32_to_cpu(raw_super->segment_count_main); + FDEV(i).start_blk = 0; + FDEV(i).end_blk = FDEV(i).total_segments * + BLKS_PER_SEG(sbi); + } + + if (i == 0) + FDEV(0).bdev_file = sbi->sb->s_bdev_file; + else if (!RDEV(i).path[0]) + break; + + if (max_devices > 1) { + /* Multi-device mount */ + memcpy(FDEV(i).path, RDEV(i).path, MAX_PATH_LEN); + FDEV(i).total_segments = + le32_to_cpu(RDEV(i).total_segments); + if (i == 0) { + FDEV(i).start_blk = 0; + FDEV(i).end_blk = FDEV(i).start_blk + + SEGS_TO_BLKS(sbi, + FDEV(i).total_segments) - 1 + + le32_to_cpu(raw_super->segment0_blkaddr); + sbi->allocate_section_hint = FDEV(i).total_segments / + SEGS_PER_SEC(sbi); + } else { + FDEV(i).start_blk = FDEV(i - 1).end_blk + 1; + FDEV(i).end_blk = FDEV(i).start_blk + + SEGS_TO_BLKS(sbi, + FDEV(i).total_segments) - 1; + FDEV(i).bdev_file = bdev_file_open_by_path( + FDEV(i).path, mode, sbi->sb, NULL); + } + } + if (IS_ERR(FDEV(i).bdev_file)) + return PTR_ERR(FDEV(i).bdev_file); + + FDEV(i).bdev = file_bdev(FDEV(i).bdev_file); + /* to release errored devices */ + sbi->s_ndevs = i + 1; + + if (logical_blksize != bdev_logical_block_size(FDEV(i).bdev)) + sbi->aligned_blksize = false; + +#ifdef CONFIG_BLK_DEV_ZONED + if (bdev_is_zoned(FDEV(i).bdev)) { + if (!f2fs_sb_has_blkzoned(sbi)) { + f2fs_err(sbi, "Zoned block device feature not enabled"); + return -EINVAL; + } + if (init_blkz_info(sbi, i)) { + f2fs_err(sbi, "Failed to initialize F2FS blkzone information"); + return -EINVAL; + } + if (max_devices == 1) + break; + f2fs_info(sbi, "Mount Device [%2d]: %20s, %8u, %8x - %8x (zone: Host-managed)", + i, FDEV(i).path, + FDEV(i).total_segments, + FDEV(i).start_blk, FDEV(i).end_blk); + continue; + } +#endif + f2fs_info(sbi, "Mount Device [%2d]: %20s, %8u, %8x - %8x", + i, FDEV(i).path, + FDEV(i).total_segments, + FDEV(i).start_blk, FDEV(i).end_blk); + } + return 0; +} + +static int f2fs_setup_casefold(struct f2fs_sb_info *sbi) +{ +#if IS_ENABLED(CONFIG_UNICODE) + if (f2fs_sb_has_casefold(sbi) && !sbi->sb->s_encoding) { + const struct f2fs_sb_encodings *encoding_info; + struct unicode_map *encoding; + __u16 encoding_flags; + + encoding_info = f2fs_sb_read_encoding(sbi->raw_super); + if (!encoding_info) { + f2fs_err(sbi, + "Encoding requested by superblock is unknown"); + return -EINVAL; + } + + encoding_flags = le16_to_cpu(sbi->raw_super->s_encoding_flags); + encoding = utf8_load(encoding_info->version); + if (IS_ERR(encoding)) { + f2fs_err(sbi, + "can't mount with superblock charset: %s-%u.%u.%u " + "not supported by the kernel. flags: 0x%x.", + encoding_info->name, + unicode_major(encoding_info->version), + unicode_minor(encoding_info->version), + unicode_rev(encoding_info->version), + encoding_flags); + return PTR_ERR(encoding); + } + f2fs_info(sbi, "Using encoding defined by superblock: " + "%s-%u.%u.%u with flags 0x%hx", encoding_info->name, + unicode_major(encoding_info->version), + unicode_minor(encoding_info->version), + unicode_rev(encoding_info->version), + encoding_flags); + + sbi->sb->s_encoding = encoding; + sbi->sb->s_encoding_flags = encoding_flags; + } +#else + if (f2fs_sb_has_casefold(sbi)) { + f2fs_err(sbi, "Filesystem with casefold feature cannot be mounted without CONFIG_UNICODE"); + return -EINVAL; + } +#endif + return 0; +} + +static void f2fs_tuning_parameters(struct f2fs_sb_info *sbi) +{ + /* adjust parameters according to the volume size */ + if (MAIN_SEGS(sbi) <= SMALL_VOLUME_SEGMENTS) { + if (f2fs_block_unit_discard(sbi)) + SM_I(sbi)->dcc_info->discard_granularity = + MIN_DISCARD_GRANULARITY; + if (!f2fs_lfs_mode(sbi)) + SM_I(sbi)->ipu_policy = BIT(F2FS_IPU_FORCE) | + BIT(F2FS_IPU_HONOR_OPU_WRITE); + } + + sbi->readdir_ra = true; +} + +static int f2fs_fill_super(struct super_block *sb, struct fs_context *fc) +{ + struct f2fs_fs_context *ctx = fc->fs_private; struct f2fs_sb_info *sbi; struct f2fs_super_block *raw_super; - struct buffer_head *raw_super_buf; struct inode *root; - long err = -EINVAL; - int i; + int err; + bool skip_recovery = false, need_fsck = false; + int recovery, i, valid_super_block; + struct curseg_info *seg_i; + int retry_cnt = 1; +#ifdef CONFIG_QUOTA + bool quota_enabled = false; +#endif + +try_onemore: + err = -EINVAL; + raw_super = NULL; + valid_super_block = -1; + recovery = 0; /* allocate memory for f2fs-specific super block info */ sbi = kzalloc(sizeof(struct f2fs_sb_info), GFP_KERNEL); if (!sbi) return -ENOMEM; + sbi->sb = sb; + + /* initialize locks within allocated memory */ + init_f2fs_rwsem(&sbi->gc_lock); + mutex_init(&sbi->writepages); + init_f2fs_rwsem(&sbi->cp_global_sem); + init_f2fs_rwsem(&sbi->node_write); + init_f2fs_rwsem(&sbi->node_change); + spin_lock_init(&sbi->stat_lock); + init_f2fs_rwsem(&sbi->cp_rwsem); + init_f2fs_rwsem(&sbi->cp_enable_rwsem); + init_f2fs_rwsem(&sbi->quota_sem); + init_waitqueue_head(&sbi->cp_wait); + spin_lock_init(&sbi->error_lock); + + for (i = 0; i < NR_INODE_TYPE; i++) { + INIT_LIST_HEAD(&sbi->inode_list[i]); + spin_lock_init(&sbi->inode_lock[i]); + } + mutex_init(&sbi->flush_lock); + /* set a block size */ - if (!sb_set_blocksize(sb, F2FS_BLKSIZE)) { - f2fs_msg(sb, KERN_ERR, "unable to set blocksize"); + if (unlikely(!sb_set_blocksize(sb, F2FS_BLKSIZE))) { + f2fs_err(sbi, "unable to set blocksize"); goto free_sbi; } - err = validate_superblock(sb, &raw_super, &raw_super_buf, 0); - if (err) { - brelse(raw_super_buf); - /* check secondary superblock when primary failed */ - err = validate_superblock(sb, &raw_super, &raw_super_buf, 1); - if (err) - goto free_sb_buf; - } + err = read_raw_super_block(sbi, &raw_super, &valid_super_block, + &recovery); + if (err) + goto free_sbi; + sb->s_fs_info = sbi; - /* init some FS parameters */ - sbi->active_logs = NR_CURSEG_TYPE; + sbi->raw_super = raw_super; - set_opt(sbi, BG_GC); + INIT_WORK(&sbi->s_error_work, f2fs_record_error_work); + memcpy(sbi->errors, raw_super->s_errors, MAX_F2FS_ERRORS); + memcpy(sbi->stop_reason, raw_super->s_stop_reason, MAX_STOP_REASON); -#ifdef CONFIG_F2FS_FS_XATTR - set_opt(sbi, XATTR_USER); -#endif -#ifdef CONFIG_F2FS_FS_POSIX_ACL - set_opt(sbi, POSIX_ACL); -#endif - /* parse mount options */ - err = parse_options(sb, (char *)data); + /* precompute checksum seed for metadata */ + if (f2fs_sb_has_inode_chksum(sbi)) + sbi->s_chksum_seed = f2fs_chksum(~0, raw_super->uuid, + sizeof(raw_super->uuid)); + + default_options(sbi, false); + + err = f2fs_check_opt_consistency(fc, sb); if (err) goto free_sb_buf; - sb->s_maxbytes = max_file_size(le32_to_cpu(raw_super->log_blocksize)); + f2fs_apply_options(fc, sb); + + err = f2fs_sanity_check_options(sbi, false); + if (err) + goto free_options; + + sb->s_maxbytes = max_file_blocks(NULL) << + le32_to_cpu(raw_super->log_blocksize); sb->s_max_links = F2FS_LINK_MAX; - get_random_bytes(&sbi->s_next_generation, sizeof(u32)); + + err = f2fs_setup_casefold(sbi); + if (err) + goto free_options; + +#ifdef CONFIG_QUOTA + sb->dq_op = &f2fs_quota_operations; + sb->s_qcop = &f2fs_quotactl_ops; + sb->s_quota_types = QTYPE_MASK_USR | QTYPE_MASK_GRP | QTYPE_MASK_PRJ; + + if (f2fs_sb_has_quota_ino(sbi)) { + for (i = 0; i < MAXQUOTAS; i++) { + if (f2fs_qf_ino(sbi->sb, i)) + sbi->nquota_files++; + } + } +#endif sb->s_op = &f2fs_sops; +#ifdef CONFIG_FS_ENCRYPTION + sb->s_cop = &f2fs_cryptops; +#endif +#ifdef CONFIG_FS_VERITY + sb->s_vop = &f2fs_verityops; +#endif sb->s_xattr = f2fs_xattr_handlers; sb->s_export_op = &f2fs_export_ops; sb->s_magic = F2FS_SUPER_MAGIC; sb->s_time_gran = 1; - sb->s_flags = (sb->s_flags & ~MS_POSIXACL) | - (test_opt(sbi, POSIX_ACL) ? MS_POSIXACL : 0); - memcpy(sb->s_uuid, raw_super->uuid, sizeof(raw_super->uuid)); + sb->s_flags = (sb->s_flags & ~SB_POSIXACL) | + (test_opt(sbi, POSIX_ACL) ? SB_POSIXACL : 0); + if (test_opt(sbi, INLINECRYPT)) + sb->s_flags |= SB_INLINECRYPT; + + if (test_opt(sbi, LAZYTIME)) + sb->s_flags |= SB_LAZYTIME; + else + sb->s_flags &= ~SB_LAZYTIME; + + super_set_uuid(sb, (void *) raw_super->uuid, sizeof(raw_super->uuid)); + super_set_sysfs_name_bdev(sb); + sb->s_iflags |= SB_I_CGROUPWB; /* init f2fs-specific super block info */ - sbi->sb = sb; - sbi->raw_super = raw_super; - sbi->raw_super_buf = raw_super_buf; - mutex_init(&sbi->gc_mutex); - mutex_init(&sbi->writepages); - mutex_init(&sbi->cp_mutex); - for (i = 0; i < NR_GLOBAL_LOCKS; i++) - mutex_init(&sbi->fs_lock[i]); - mutex_init(&sbi->node_write); - sbi->por_doing = 0; - spin_lock_init(&sbi->stat_lock); - init_rwsem(&sbi->bio_sem); + sbi->valid_super_block = valid_super_block; + + /* disallow all the data/node/meta page writes */ + set_sbi_flag(sbi, SBI_POR_DOING); + + err = f2fs_init_write_merge_io(sbi); + if (err) + goto free_bio_info; + init_sb_info(sbi); + err = f2fs_init_iostat(sbi); + if (err) + goto free_bio_info; + + err = init_percpu_info(sbi); + if (err) + goto free_iostat; + + err = f2fs_init_page_array_cache(sbi); + if (err) + goto free_percpu; + /* get an inode for meta space */ sbi->meta_inode = f2fs_iget(sb, F2FS_META_INO(sbi)); if (IS_ERR(sbi->meta_inode)) { - f2fs_msg(sb, KERN_ERR, "Failed to read F2FS meta data inode"); + f2fs_err(sbi, "Failed to read F2FS meta data inode"); err = PTR_ERR(sbi->meta_inode); - goto free_sb_buf; + goto free_page_array_cache; } - err = get_valid_checkpoint(sbi); + err = f2fs_get_valid_checkpoint(sbi); if (err) { - f2fs_msg(sb, KERN_ERR, "Failed to get valid F2FS checkpoint"); + f2fs_err(sbi, "Failed to get valid F2FS checkpoint"); goto free_meta_inode; } - /* sanity checking of checkpoint */ - err = -EINVAL; - if (sanity_check_ckpt(sbi)) { - f2fs_msg(sb, KERN_ERR, "Invalid F2FS checkpoint"); - goto free_cp; + if (__is_set_ckpt_flags(F2FS_CKPT(sbi), CP_QUOTA_NEED_FSCK_FLAG)) + set_sbi_flag(sbi, SBI_QUOTA_NEED_REPAIR); + if (__is_set_ckpt_flags(F2FS_CKPT(sbi), CP_DISABLED_QUICK_FLAG)) { + set_sbi_flag(sbi, SBI_CP_DISABLED_QUICK); + sbi->interval_time[DISABLE_TIME] = DEF_DISABLE_QUICK_INTERVAL; + } + + if (__is_set_ckpt_flags(F2FS_CKPT(sbi), CP_FSCK_FLAG)) + set_sbi_flag(sbi, SBI_NEED_FSCK); + + /* Initialize device list */ + err = f2fs_scan_devices(sbi); + if (err) { + f2fs_err(sbi, "Failed to find devices"); + goto free_devices; + } + + err = f2fs_init_post_read_wq(sbi); + if (err) { + f2fs_err(sbi, "Failed to initialize post read workqueue"); + goto free_devices; } sbi->total_valid_node_count = le32_to_cpu(sbi->ckpt->valid_node_count); - sbi->total_valid_inode_count = - le32_to_cpu(sbi->ckpt->valid_inode_count); + percpu_counter_set(&sbi->total_valid_inode_count, + le32_to_cpu(sbi->ckpt->valid_inode_count)); sbi->user_block_count = le64_to_cpu(sbi->ckpt->user_block_count); sbi->total_valid_block_count = le64_to_cpu(sbi->ckpt->valid_block_count); sbi->last_valid_block_count = sbi->total_valid_block_count; - sbi->alloc_valid_block_count = 0; - INIT_LIST_HEAD(&sbi->dir_inode_list); - spin_lock_init(&sbi->dir_inode_lock); + sbi->reserved_blocks = 0; + sbi->current_reserved_blocks = 0; + limit_reserve_root(sbi); + adjust_unusable_cap_perc(sbi); + + f2fs_init_extent_cache_info(sbi); - init_orphan_info(sbi); + f2fs_init_ino_entry_info(sbi); + + f2fs_init_fsync_node_info(sbi); + + /* setup checkpoint request control and start checkpoint issue thread */ + f2fs_init_ckpt_req_control(sbi); + if (!f2fs_readonly(sb) && !test_opt(sbi, DISABLE_CHECKPOINT) && + test_opt(sbi, MERGE_CHECKPOINT)) { + err = f2fs_start_ckpt_thread(sbi); + if (err) { + f2fs_err(sbi, + "Failed to start F2FS issue_checkpoint_thread (%d)", + err); + goto stop_ckpt_thread; + } + } /* setup f2fs internal modules */ - err = build_segment_manager(sbi); + err = f2fs_build_segment_manager(sbi); if (err) { - f2fs_msg(sb, KERN_ERR, - "Failed to initialize F2FS segment manager"); + f2fs_err(sbi, "Failed to initialize F2FS segment manager (%d)", + err); goto free_sm; } - err = build_node_manager(sbi); + err = f2fs_build_node_manager(sbi); if (err) { - f2fs_msg(sb, KERN_ERR, - "Failed to initialize F2FS node manager"); + f2fs_err(sbi, "Failed to initialize F2FS node manager (%d)", + err); goto free_nm; } - build_gc_manager(sbi); + /* For write statistics */ + sbi->sectors_written_start = f2fs_get_sectors_written(sbi); + + /* get segno of first zoned block device */ + sbi->first_seq_zone_segno = get_first_seq_zone_segno(sbi); + + sbi->reserved_pin_section = f2fs_sb_has_blkzoned(sbi) ? + ZONED_PIN_SEC_REQUIRED_COUNT : + GET_SEC_FROM_SEG(sbi, overprovision_segments(sbi)); + + /* Read accumulated write IO statistics if exists */ + seg_i = CURSEG_I(sbi, CURSEG_HOT_NODE); + if (__exist_node_summaries(sbi)) + sbi->kbytes_written = + le64_to_cpu(seg_i->journal->info.kbytes_written); + + f2fs_build_gc_manager(sbi); + + err = f2fs_build_stats(sbi); + if (err) + goto free_nm; /* get an inode for node space */ sbi->node_inode = f2fs_iget(sb, F2FS_NODE_INO(sbi)); if (IS_ERR(sbi->node_inode)) { - f2fs_msg(sb, KERN_ERR, "Failed to read node inode"); + f2fs_err(sbi, "Failed to read node inode"); err = PTR_ERR(sbi->node_inode); - goto free_nm; + goto free_stats; } - /* if there are nt orphan nodes free them */ - err = -EINVAL; - if (recover_orphan_inodes(sbi)) - goto free_node_inode; - /* read root inode and dentry */ root = f2fs_iget(sb, F2FS_ROOT_INO(sbi)); if (IS_ERR(root)) { - f2fs_msg(sb, KERN_ERR, "Failed to read root inode"); + f2fs_err(sbi, "Failed to read root inode"); err = PTR_ERR(root); goto free_node_inode; } - if (!S_ISDIR(root->i_mode) || !root->i_blocks || !root->i_size) - goto free_root_inode; + if (!S_ISDIR(root->i_mode) || !root->i_blocks || + !root->i_size || !root->i_nlink) { + iput(root); + err = -EINVAL; + goto free_node_inode; + } + generic_set_sb_d_ops(sb); sb->s_root = d_make_root(root); /* allocate root dentry */ if (!sb->s_root) { err = -ENOMEM; + goto free_node_inode; + } + + err = f2fs_init_compress_inode(sbi); + if (err) goto free_root_inode; + + err = f2fs_register_sysfs(sbi); + if (err) + goto free_compress_inode; + + sbi->umount_lock_holder = current; +#ifdef CONFIG_QUOTA + /* Enable quota usage during mount */ + if (f2fs_sb_has_quota_ino(sbi) && !f2fs_readonly(sb)) { + err = f2fs_enable_quotas(sb); + if (err) + f2fs_err(sbi, "Cannot turn on quotas: error %d", err); + } + + quota_enabled = f2fs_recover_quota_begin(sbi); +#endif + /* if there are any orphan inodes, free them */ + err = f2fs_recover_orphan_inodes(sbi); + if (err) + goto free_meta; + + if (unlikely(is_set_ckpt_flags(sbi, CP_DISABLED_FLAG))) { + skip_recovery = true; + goto reset_checkpoint; } /* recover fsynced data */ - if (!test_opt(sbi, DISABLE_ROLL_FORWARD)) { - err = recover_fsync_data(sbi); - if (err) - f2fs_msg(sb, KERN_ERR, - "Cannot recover all fsync data errno=%ld", err); + if (!test_opt(sbi, DISABLE_ROLL_FORWARD) && + !test_opt(sbi, NORECOVERY)) { + /* + * mount should be failed, when device has readonly mode, and + * previous checkpoint was not done by clean system shutdown. + */ + if (f2fs_hw_is_readonly(sbi)) { + if (!is_set_ckpt_flags(sbi, CP_UMOUNT_FLAG)) { + err = f2fs_recover_fsync_data(sbi, true); + if (err > 0) { + err = -EROFS; + f2fs_err(sbi, "Need to recover fsync data, but " + "write access unavailable, please try " + "mount w/ disable_roll_forward or norecovery"); + } + if (err < 0) + goto free_meta; + } + f2fs_info(sbi, "write access unavailable, skipping recovery"); + goto reset_checkpoint; + } + + if (need_fsck) + set_sbi_flag(sbi, SBI_NEED_FSCK); + + if (skip_recovery) + goto reset_checkpoint; + + err = f2fs_recover_fsync_data(sbi, false); + if (err < 0) { + if (err != -ENOMEM) + skip_recovery = true; + need_fsck = true; + f2fs_err(sbi, "Cannot recover all fsync data errno=%d", + err); + goto free_meta; + } + } else { + err = f2fs_recover_fsync_data(sbi, true); + if (err > 0) { + if (!f2fs_readonly(sb)) { + f2fs_err(sbi, "Need to recover fsync data"); + err = -EINVAL; + goto free_meta; + } else { + f2fs_info(sbi, "drop all fsynced data"); + err = 0; + } + } } +reset_checkpoint: +#ifdef CONFIG_QUOTA + f2fs_recover_quota_end(sbi, quota_enabled); +#endif + /* + * If the f2fs is not readonly and fsync data recovery succeeds, + * write pointer consistency of cursegs and other zones are already + * checked and fixed during recovery. However, if recovery fails, + * write pointers are left untouched, and retry-mount should check + * them here. + */ + if (skip_recovery) + err = f2fs_check_and_fix_write_pointer(sbi); + if (err) + goto free_meta; + + /* f2fs_recover_fsync_data() cleared this already */ + clear_sbi_flag(sbi, SBI_POR_DOING); + + err = f2fs_init_inmem_curseg(sbi); + if (err) + goto sync_free_meta; + + if (test_opt(sbi, DISABLE_CHECKPOINT)) + err = f2fs_disable_checkpoint(sbi); + else if (is_set_ckpt_flags(sbi, CP_DISABLED_FLAG)) + err = f2fs_enable_checkpoint(sbi); + if (err) + goto sync_free_meta; + /* * If filesystem is not mounted as read-only then * do start the gc_thread. */ - if (!(sb->s_flags & MS_RDONLY)) { + if ((F2FS_OPTION(sbi).bggc_mode != BGGC_MODE_OFF || + test_opt(sbi, GC_MERGE)) && !f2fs_readonly(sb)) { /* After POR, we can run background GC thread.*/ - err = start_gc_thread(sbi); + err = f2fs_start_gc_thread(sbi); if (err) - goto fail; + goto sync_free_meta; } - err = f2fs_build_stats(sbi); - if (err) - goto fail; - - if (test_opt(sbi, DISCARD)) { - struct request_queue *q = bdev_get_queue(sb->s_bdev); - if (!blk_queue_discard(q)) - f2fs_msg(sb, KERN_WARNING, - "mounting with \"discard\" option, but " - "the device does not support discard"); + /* recover broken superblock */ + if (recovery) { + err = f2fs_commit_super(sbi, true); + f2fs_info(sbi, "Try to recover %dth superblock, ret: %d", + sbi->valid_super_block ? 1 : 2, err); } + f2fs_join_shrinker(sbi); + + f2fs_tuning_parameters(sbi); + + f2fs_notice(sbi, "Mounted with checkpoint version = %llx", + cur_cp_version(F2FS_CKPT(sbi))); + f2fs_update_time(sbi, CP_TIME); + f2fs_update_time(sbi, REQ_TIME); + clear_sbi_flag(sbi, SBI_CP_DISABLED_QUICK); + + sbi->umount_lock_holder = NULL; return 0; -fail: - stop_gc_thread(sbi); + +sync_free_meta: + /* safe to flush all the data */ + sync_filesystem(sbi->sb); + retry_cnt = 0; + +free_meta: +#ifdef CONFIG_QUOTA + f2fs_truncate_quota_inode_pages(sb); + if (f2fs_sb_has_quota_ino(sbi) && !f2fs_readonly(sb)) + f2fs_quota_off_umount(sbi->sb); +#endif + /* + * Some dirty meta pages can be produced by f2fs_recover_orphan_inodes() + * failed by EIO. Then, iput(node_inode) can trigger balance_fs_bg() + * followed by f2fs_write_checkpoint() through f2fs_write_node_pages(), which + * falls into an infinite loop in f2fs_sync_meta_pages(). + */ + truncate_inode_pages_final(META_MAPPING(sbi)); + /* evict some inodes being cached by GC */ + evict_inodes(sb); + f2fs_unregister_sysfs(sbi); +free_compress_inode: + f2fs_destroy_compress_inode(sbi); free_root_inode: dput(sb->s_root); sb->s_root = NULL; free_node_inode: + f2fs_release_ino_entry(sbi, true); + truncate_inode_pages_final(NODE_MAPPING(sbi)); iput(sbi->node_inode); + sbi->node_inode = NULL; +free_stats: + f2fs_destroy_stats(sbi); free_nm: - destroy_node_manager(sbi); + /* stop discard thread before destroying node manager */ + f2fs_stop_discard_thread(sbi); + f2fs_destroy_node_manager(sbi); free_sm: - destroy_segment_manager(sbi); -free_cp: - kfree(sbi->ckpt); + f2fs_destroy_segment_manager(sbi); +stop_ckpt_thread: + f2fs_stop_ckpt_thread(sbi); + /* flush s_error_work before sbi destroy */ + flush_work(&sbi->s_error_work); + f2fs_destroy_post_read_wq(sbi); +free_devices: + destroy_device_list(sbi); + kvfree(sbi->ckpt); free_meta_inode: make_bad_inode(sbi->meta_inode); iput(sbi->meta_inode); + sbi->meta_inode = NULL; +free_page_array_cache: + f2fs_destroy_page_array_cache(sbi); +free_percpu: + destroy_percpu_info(sbi); +free_iostat: + f2fs_destroy_iostat(sbi); +free_bio_info: + for (i = 0; i < NR_PAGE_TYPE; i++) + kfree(sbi->write_io[i]); + +#if IS_ENABLED(CONFIG_UNICODE) + utf8_unload(sb->s_encoding); + sb->s_encoding = NULL; +#endif +free_options: +#ifdef CONFIG_QUOTA + for (i = 0; i < MAXQUOTAS; i++) + kfree(F2FS_OPTION(sbi).s_qf_names[i]); +#endif + /* no need to free dummy_enc_policy, we just keep it in ctx when failed */ + swap(F2FS_CTX_INFO(ctx).dummy_enc_policy, F2FS_OPTION(sbi).dummy_enc_policy); free_sb_buf: - brelse(raw_super_buf); + kfree(raw_super); free_sbi: kfree(sbi); + sb->s_fs_info = NULL; + + /* give only one another chance */ + if (retry_cnt > 0 && skip_recovery) { + retry_cnt--; + shrink_dcache_sb(sb); + goto try_onemore; + } return err; } -static struct dentry *f2fs_mount(struct file_system_type *fs_type, int flags, - const char *dev_name, void *data) +static int f2fs_get_tree(struct fs_context *fc) +{ + return get_tree_bdev(fc, f2fs_fill_super); +} + +static int f2fs_reconfigure(struct fs_context *fc) +{ + struct super_block *sb = fc->root->d_sb; + + return __f2fs_remount(fc, sb); +} + +static void f2fs_fc_free(struct fs_context *fc) { - return mount_bdev(fs_type, flags, dev_name, data, f2fs_fill_super); + struct f2fs_fs_context *ctx = fc->fs_private; + + if (!ctx) + return; + +#ifdef CONFIG_QUOTA + f2fs_unnote_qf_name_all(fc); +#endif + fscrypt_free_dummy_policy(&F2FS_CTX_INFO(ctx).dummy_enc_policy); + kfree(ctx); +} + +static const struct fs_context_operations f2fs_context_ops = { + .parse_param = f2fs_parse_param, + .get_tree = f2fs_get_tree, + .reconfigure = f2fs_reconfigure, + .free = f2fs_fc_free, +}; + +static void kill_f2fs_super(struct super_block *sb) +{ + struct f2fs_sb_info *sbi = F2FS_SB(sb); + + if (sb->s_root) { + sbi->umount_lock_holder = current; + + set_sbi_flag(sbi, SBI_IS_CLOSE); + f2fs_stop_gc_thread(sbi); + f2fs_stop_discard_thread(sbi); + +#ifdef CONFIG_F2FS_FS_COMPRESSION + /* + * latter evict_inode() can bypass checking and invalidating + * compress inode cache. + */ + if (test_opt(sbi, COMPRESS_CACHE)) + truncate_inode_pages_final(COMPRESS_MAPPING(sbi)); +#endif + + if (is_sbi_flag_set(sbi, SBI_IS_DIRTY) || + !is_set_ckpt_flags(sbi, CP_UMOUNT_FLAG)) { + struct cp_control cpc = { + .reason = CP_UMOUNT, + }; + stat_inc_cp_call_count(sbi, TOTAL_CALL); + f2fs_write_checkpoint(sbi, &cpc); + } + + if (is_sbi_flag_set(sbi, SBI_IS_RECOVERED) && f2fs_readonly(sb)) + sb->s_flags &= ~SB_RDONLY; + } + kill_block_super(sb); + /* Release block devices last, after fscrypt_destroy_keyring(). */ + if (sbi) { + destroy_device_list(sbi); + kfree(sbi); + sb->s_fs_info = NULL; + } +} + +static int f2fs_init_fs_context(struct fs_context *fc) +{ + struct f2fs_fs_context *ctx; + + ctx = kzalloc(sizeof(struct f2fs_fs_context), GFP_KERNEL); + if (!ctx) + return -ENOMEM; + + fc->fs_private = ctx; + fc->ops = &f2fs_context_ops; + + return 0; } static struct file_system_type f2fs_fs_type = { .owner = THIS_MODULE, .name = "f2fs", - .mount = f2fs_mount, - .kill_sb = kill_block_super, - .fs_flags = FS_REQUIRES_DEV, + .init_fs_context = f2fs_init_fs_context, + .kill_sb = kill_f2fs_super, + .fs_flags = FS_REQUIRES_DEV | FS_ALLOW_IDMAP, }; MODULE_ALIAS_FS("f2fs"); static int __init init_inodecache(void) { - f2fs_inode_cachep = f2fs_kmem_cache_create("f2fs_inode_cache", - sizeof(struct f2fs_inode_info), NULL); - if (f2fs_inode_cachep == NULL) - return -ENOMEM; - return 0; + f2fs_inode_cachep = kmem_cache_create("f2fs_inode_cache", + sizeof(struct f2fs_inode_info), 0, + SLAB_RECLAIM_ACCOUNT|SLAB_ACCOUNT, NULL); + return f2fs_inode_cachep ? 0 : -ENOMEM; } static void destroy_inodecache(void) @@ -839,30 +5508,118 @@ static int __init init_f2fs_fs(void) err = init_inodecache(); if (err) goto fail; - err = create_node_manager_caches(); + err = f2fs_create_node_manager_caches(); if (err) - goto fail; - err = create_gc_caches(); + goto free_inodecache; + err = f2fs_create_segment_manager_caches(); if (err) - goto fail; - err = create_checkpoint_caches(); + goto free_node_manager_caches; + err = f2fs_create_checkpoint_caches(); if (err) - goto fail; - err = register_filesystem(&f2fs_fs_type); + goto free_segment_manager_caches; + err = f2fs_create_recovery_cache(); if (err) - goto fail; + goto free_checkpoint_caches; + err = f2fs_create_extent_cache(); + if (err) + goto free_recovery_cache; + err = f2fs_create_garbage_collection_cache(); + if (err) + goto free_extent_cache; + err = f2fs_init_sysfs(); + if (err) + goto free_garbage_collection_cache; + err = f2fs_init_shrinker(); + if (err) + goto free_sysfs; f2fs_create_root_stats(); + err = f2fs_init_post_read_processing(); + if (err) + goto free_root_stats; + err = f2fs_init_iostat_processing(); + if (err) + goto free_post_read; + err = f2fs_init_bio_entry_cache(); + if (err) + goto free_iostat; + err = f2fs_init_bioset(); + if (err) + goto free_bio_entry_cache; + err = f2fs_init_compress_mempool(); + if (err) + goto free_bioset; + err = f2fs_init_compress_cache(); + if (err) + goto free_compress_mempool; + err = f2fs_create_casefold_cache(); + if (err) + goto free_compress_cache; + err = f2fs_init_xattr_cache(); + if (err) + goto free_casefold_cache; + err = register_filesystem(&f2fs_fs_type); + if (err) + goto free_xattr_cache; + return 0; +free_xattr_cache: + f2fs_destroy_xattr_cache(); +free_casefold_cache: + f2fs_destroy_casefold_cache(); +free_compress_cache: + f2fs_destroy_compress_cache(); +free_compress_mempool: + f2fs_destroy_compress_mempool(); +free_bioset: + f2fs_destroy_bioset(); +free_bio_entry_cache: + f2fs_destroy_bio_entry_cache(); +free_iostat: + f2fs_destroy_iostat_processing(); +free_post_read: + f2fs_destroy_post_read_processing(); +free_root_stats: + f2fs_destroy_root_stats(); + f2fs_exit_shrinker(); +free_sysfs: + f2fs_exit_sysfs(); +free_garbage_collection_cache: + f2fs_destroy_garbage_collection_cache(); +free_extent_cache: + f2fs_destroy_extent_cache(); +free_recovery_cache: + f2fs_destroy_recovery_cache(); +free_checkpoint_caches: + f2fs_destroy_checkpoint_caches(); +free_segment_manager_caches: + f2fs_destroy_segment_manager_caches(); +free_node_manager_caches: + f2fs_destroy_node_manager_caches(); +free_inodecache: + destroy_inodecache(); fail: return err; } static void __exit exit_f2fs_fs(void) { - f2fs_destroy_root_stats(); unregister_filesystem(&f2fs_fs_type); - destroy_checkpoint_caches(); - destroy_gc_caches(); - destroy_node_manager_caches(); + f2fs_destroy_xattr_cache(); + f2fs_destroy_casefold_cache(); + f2fs_destroy_compress_cache(); + f2fs_destroy_compress_mempool(); + f2fs_destroy_bioset(); + f2fs_destroy_bio_entry_cache(); + f2fs_destroy_iostat_processing(); + f2fs_destroy_post_read_processing(); + f2fs_destroy_root_stats(); + f2fs_exit_shrinker(); + f2fs_exit_sysfs(); + f2fs_destroy_garbage_collection_cache(); + f2fs_destroy_extent_cache(); + f2fs_destroy_recovery_cache(); + f2fs_destroy_checkpoint_caches(); + f2fs_destroy_segment_manager_caches(); + f2fs_destroy_node_manager_caches(); destroy_inodecache(); } |