diff options
Diffstat (limited to 'fs/f2fs/sysfs.c')
| -rw-r--r-- | fs/f2fs/sysfs.c | 1841 |
1 files changed, 1740 insertions, 101 deletions
diff --git a/fs/f2fs/sysfs.c b/fs/f2fs/sysfs.c index 71191d89917d..c42f4f979d13 100644 --- a/fs/f2fs/sysfs.c +++ b/fs/f2fs/sysfs.c @@ -1,24 +1,26 @@ +// SPDX-License-Identifier: GPL-2.0 /* * f2fs sysfs interface * * Copyright (c) 2012 Samsung Electronics Co., Ltd. * http://www.samsung.com/ * Copyright (c) 2017 Chao Yu <chao@kernel.org> - * - * 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/compiler.h> #include <linux/proc_fs.h> #include <linux/f2fs_fs.h> #include <linux/seq_file.h> +#include <linux/unicode.h> +#include <linux/ioprio.h> +#include <linux/sysfs.h> #include "f2fs.h" #include "segment.h" #include "gc.h" +#include "iostat.h" +#include <trace/events/f2fs.h> static struct proc_dir_entry *f2fs_proc_root; -static struct kset *f2fs_kset; /* Sysfs support for f2fs */ enum { @@ -27,22 +29,47 @@ enum { DCC_INFO, /* struct discard_cmd_control */ NM_INFO, /* struct f2fs_nm_info */ F2FS_SBI, /* struct f2fs_sb_info */ +#ifdef CONFIG_F2FS_STAT_FS + STAT_INFO, /* struct f2fs_stat_info */ +#endif #ifdef CONFIG_F2FS_FAULT_INJECTION FAULT_INFO_RATE, /* struct f2fs_fault_info */ FAULT_INFO_TYPE, /* struct f2fs_fault_info */ #endif - RESERVED_BLOCKS, + RESERVED_BLOCKS, /* struct f2fs_sb_info */ + CPRC_INFO, /* struct ckpt_req_control */ + ATGC_INFO, /* struct atgc_management */ +}; + +static const char *gc_mode_names[MAX_GC_MODE] = { + "GC_NORMAL", + "GC_IDLE_CB", + "GC_IDLE_GREEDY", + "GC_IDLE_AT", + "GC_URGENT_HIGH", + "GC_URGENT_LOW", + "GC_URGENT_MID" }; struct f2fs_attr { struct attribute attr; - ssize_t (*show)(struct f2fs_attr *, struct f2fs_sb_info *, char *); - ssize_t (*store)(struct f2fs_attr *, struct f2fs_sb_info *, - const char *, size_t); + ssize_t (*show)(struct f2fs_attr *a, struct f2fs_sb_info *sbi, char *buf); + ssize_t (*store)(struct f2fs_attr *a, struct f2fs_sb_info *sbi, + const char *buf, size_t len); int struct_type; int offset; + int id; +}; + +struct f2fs_base_attr { + struct attribute attr; + ssize_t (*show)(struct f2fs_base_attr *a, char *buf); + ssize_t (*store)(struct f2fs_base_attr *a, const char *buf, size_t len); }; +static ssize_t f2fs_sbi_show(struct f2fs_attr *a, + struct f2fs_sb_info *sbi, char *buf); + static unsigned char *__struct_ptr(struct f2fs_sb_info *sbi, int struct_type) { if (struct_type == GC_THREAD) @@ -58,22 +85,263 @@ static unsigned char *__struct_ptr(struct f2fs_sb_info *sbi, int struct_type) #ifdef CONFIG_F2FS_FAULT_INJECTION else if (struct_type == FAULT_INFO_RATE || struct_type == FAULT_INFO_TYPE) - return (unsigned char *)&sbi->fault_info; + return (unsigned char *)&F2FS_OPTION(sbi).fault_info; +#endif +#ifdef CONFIG_F2FS_STAT_FS + else if (struct_type == STAT_INFO) + return (unsigned char *)F2FS_STAT(sbi); #endif + else if (struct_type == CPRC_INFO) + return (unsigned char *)&sbi->cprc_info; + else if (struct_type == ATGC_INFO) + return (unsigned char *)&sbi->am; return NULL; } +static ssize_t dirty_segments_show(struct f2fs_attr *a, + struct f2fs_sb_info *sbi, char *buf) +{ + return sysfs_emit(buf, "%llu\n", + (unsigned long long)(dirty_segments(sbi))); +} + +static ssize_t free_segments_show(struct f2fs_attr *a, + struct f2fs_sb_info *sbi, char *buf) +{ + return sysfs_emit(buf, "%llu\n", + (unsigned long long)(free_segments(sbi))); +} + +static ssize_t ovp_segments_show(struct f2fs_attr *a, + struct f2fs_sb_info *sbi, char *buf) +{ + return sysfs_emit(buf, "%llu\n", + (unsigned long long)(overprovision_segments(sbi))); +} + static ssize_t lifetime_write_kbytes_show(struct f2fs_attr *a, struct f2fs_sb_info *sbi, char *buf) { + return sysfs_emit(buf, "%llu\n", + (unsigned long long)(sbi->kbytes_written + + ((f2fs_get_sectors_written(sbi) - + sbi->sectors_written_start) >> 1))); +} + +static ssize_t sb_status_show(struct f2fs_attr *a, + struct f2fs_sb_info *sbi, char *buf) +{ + return sysfs_emit(buf, "%lx\n", sbi->s_flag); +} + +static ssize_t cp_status_show(struct f2fs_attr *a, + struct f2fs_sb_info *sbi, char *buf) +{ + return sysfs_emit(buf, "%x\n", le32_to_cpu(F2FS_CKPT(sbi)->ckpt_flags)); +} + +static ssize_t pending_discard_show(struct f2fs_attr *a, + struct f2fs_sb_info *sbi, char *buf) +{ + if (!SM_I(sbi)->dcc_info) + return -EINVAL; + return sysfs_emit(buf, "%llu\n", (unsigned long long)atomic_read( + &SM_I(sbi)->dcc_info->discard_cmd_cnt)); +} + +static ssize_t issued_discard_show(struct f2fs_attr *a, + struct f2fs_sb_info *sbi, char *buf) +{ + if (!SM_I(sbi)->dcc_info) + return -EINVAL; + return sysfs_emit(buf, "%llu\n", (unsigned long long)atomic_read( + &SM_I(sbi)->dcc_info->issued_discard)); +} + +static ssize_t queued_discard_show(struct f2fs_attr *a, + struct f2fs_sb_info *sbi, char *buf) +{ + if (!SM_I(sbi)->dcc_info) + return -EINVAL; + return sysfs_emit(buf, "%llu\n", (unsigned long long)atomic_read( + &SM_I(sbi)->dcc_info->queued_discard)); +} + +static ssize_t undiscard_blks_show(struct f2fs_attr *a, + struct f2fs_sb_info *sbi, char *buf) +{ + if (!SM_I(sbi)->dcc_info) + return -EINVAL; + return sysfs_emit(buf, "%u\n", + SM_I(sbi)->dcc_info->undiscard_blks); +} + +static ssize_t atgc_enabled_show(struct f2fs_attr *a, + struct f2fs_sb_info *sbi, char *buf) +{ + return sysfs_emit(buf, "%d\n", sbi->am.atgc_enabled ? 1 : 0); +} + +static ssize_t gc_mode_show(struct f2fs_attr *a, + struct f2fs_sb_info *sbi, char *buf) +{ + return sysfs_emit(buf, "%s\n", gc_mode_names[sbi->gc_mode]); +} + +static ssize_t features_show(struct f2fs_attr *a, + struct f2fs_sb_info *sbi, char *buf) +{ + int len = 0; + + if (f2fs_sb_has_encrypt(sbi)) + len += sysfs_emit_at(buf, len, "%s", + "encryption"); + if (f2fs_sb_has_blkzoned(sbi)) + len += sysfs_emit_at(buf, len, "%s%s", + len ? ", " : "", "blkzoned"); + if (f2fs_sb_has_extra_attr(sbi)) + len += sysfs_emit_at(buf, len, "%s%s", + len ? ", " : "", "extra_attr"); + if (f2fs_sb_has_project_quota(sbi)) + len += sysfs_emit_at(buf, len, "%s%s", + len ? ", " : "", "projquota"); + if (f2fs_sb_has_inode_chksum(sbi)) + len += sysfs_emit_at(buf, len, "%s%s", + len ? ", " : "", "inode_checksum"); + if (f2fs_sb_has_flexible_inline_xattr(sbi)) + len += sysfs_emit_at(buf, len, "%s%s", + len ? ", " : "", "flexible_inline_xattr"); + if (f2fs_sb_has_quota_ino(sbi)) + len += sysfs_emit_at(buf, len, "%s%s", + len ? ", " : "", "quota_ino"); + if (f2fs_sb_has_inode_crtime(sbi)) + len += sysfs_emit_at(buf, len, "%s%s", + len ? ", " : "", "inode_crtime"); + if (f2fs_sb_has_lost_found(sbi)) + len += sysfs_emit_at(buf, len, "%s%s", + len ? ", " : "", "lost_found"); + if (f2fs_sb_has_verity(sbi)) + len += sysfs_emit_at(buf, len, "%s%s", + len ? ", " : "", "verity"); + if (f2fs_sb_has_sb_chksum(sbi)) + len += sysfs_emit_at(buf, len, "%s%s", + len ? ", " : "", "sb_checksum"); + if (f2fs_sb_has_casefold(sbi)) + len += sysfs_emit_at(buf, len, "%s%s", + len ? ", " : "", "casefold"); + if (f2fs_sb_has_readonly(sbi)) + len += sysfs_emit_at(buf, len, "%s%s", + len ? ", " : "", "readonly"); + if (f2fs_sb_has_compression(sbi)) + len += sysfs_emit_at(buf, len, "%s%s", + len ? ", " : "", "compression"); + if (f2fs_sb_has_packed_ssa(sbi)) + len += sysfs_emit_at(buf, len, "%s%s", + len ? ", " : "", "packed_ssa"); + len += sysfs_emit_at(buf, len, "%s%s", + len ? ", " : "", "pin_file"); + len += sysfs_emit_at(buf, len, "\n"); + return len; +} + +static ssize_t current_reserved_blocks_show(struct f2fs_attr *a, + struct f2fs_sb_info *sbi, char *buf) +{ + return sysfs_emit(buf, "%u\n", sbi->current_reserved_blocks); +} + +static ssize_t unusable_show(struct f2fs_attr *a, + struct f2fs_sb_info *sbi, char *buf) +{ + block_t unusable; + + if (test_opt(sbi, DISABLE_CHECKPOINT)) + unusable = sbi->unusable_block_count; + else + unusable = f2fs_get_unusable_blocks(sbi); + return sysfs_emit(buf, "%llu\n", (unsigned long long)unusable); +} + +static ssize_t encoding_show(struct f2fs_attr *a, + struct f2fs_sb_info *sbi, char *buf) +{ +#if IS_ENABLED(CONFIG_UNICODE) struct super_block *sb = sbi->sb; - if (!sb->s_bdev->bd_part) - return snprintf(buf, PAGE_SIZE, "0\n"); + if (f2fs_sb_has_casefold(sbi)) + return sysfs_emit(buf, "UTF-8 (%d.%d.%d)\n", + (sb->s_encoding->version >> 16) & 0xff, + (sb->s_encoding->version >> 8) & 0xff, + sb->s_encoding->version & 0xff); +#endif + return sysfs_emit(buf, "(none)\n"); +} - return snprintf(buf, PAGE_SIZE, "%llu\n", - (unsigned long long)(sbi->kbytes_written + - BD_PART_WRITTEN(sbi))); +static ssize_t encoding_flags_show(struct f2fs_attr *a, + struct f2fs_sb_info *sbi, char *buf) +{ + return sysfs_emit(buf, "%x\n", + le16_to_cpu(F2FS_RAW_SUPER(sbi)->s_encoding_flags)); +} + +static ssize_t effective_lookup_mode_show(struct f2fs_attr *a, + struct f2fs_sb_info *sbi, char *buf) +{ + switch (F2FS_OPTION(sbi).lookup_mode) { + case LOOKUP_PERF: + return sysfs_emit(buf, "perf\n"); + case LOOKUP_COMPAT: + return sysfs_emit(buf, "compat\n"); + case LOOKUP_AUTO: + if (sb_no_casefold_compat_fallback(sbi->sb)) + return sysfs_emit(buf, "auto:perf\n"); + return sysfs_emit(buf, "auto:compat\n"); + } + return 0; +} + +static ssize_t mounted_time_sec_show(struct f2fs_attr *a, + struct f2fs_sb_info *sbi, char *buf) +{ + return sysfs_emit(buf, "%llu\n", SIT_I(sbi)->mounted_time); +} + +#ifdef CONFIG_F2FS_STAT_FS +static ssize_t moved_blocks_foreground_show(struct f2fs_attr *a, + struct f2fs_sb_info *sbi, char *buf) +{ + struct f2fs_stat_info *si = F2FS_STAT(sbi); + + return sysfs_emit(buf, "%llu\n", + (unsigned long long)(si->tot_blks - + (si->bg_data_blks + si->bg_node_blks))); +} + +static ssize_t moved_blocks_background_show(struct f2fs_attr *a, + struct f2fs_sb_info *sbi, char *buf) +{ + struct f2fs_stat_info *si = F2FS_STAT(sbi); + + return sysfs_emit(buf, "%llu\n", + (unsigned long long)(si->bg_data_blks + si->bg_node_blks)); +} + +static ssize_t avg_vblocks_show(struct f2fs_attr *a, + struct f2fs_sb_info *sbi, char *buf) +{ + struct f2fs_stat_info *si = F2FS_STAT(sbi); + + si->dirty_count = dirty_segments(sbi); + f2fs_update_sit_info(sbi); + return sysfs_emit(buf, "%llu\n", (unsigned long long)(si->avg_vblocks)); +} +#endif + +static ssize_t main_blkaddr_show(struct f2fs_attr *a, + struct f2fs_sb_info *sbi, char *buf) +{ + return sysfs_emit(buf, "%llu\n", + (unsigned long long)MAIN_BLKADDR(sbi)); } static ssize_t f2fs_sbi_show(struct f2fs_attr *a, @@ -86,12 +354,86 @@ static ssize_t f2fs_sbi_show(struct f2fs_attr *a, if (!ptr) return -EINVAL; + if (!strcmp(a->attr.name, "extension_list")) { + __u8 (*extlist)[F2FS_EXTENSION_LEN] = + sbi->raw_super->extension_list; + int cold_count = le32_to_cpu(sbi->raw_super->extension_count); + int hot_count = sbi->raw_super->hot_ext_count; + int len = 0, i; + + len += sysfs_emit_at(buf, len, "cold file extension:\n"); + for (i = 0; i < cold_count; i++) + len += sysfs_emit_at(buf, len, "%s\n", extlist[i]); + + len += sysfs_emit_at(buf, len, "hot file extension:\n"); + for (i = cold_count; i < cold_count + hot_count; i++) + len += sysfs_emit_at(buf, len, "%s\n", extlist[i]); + + return len; + } + + if (!strcmp(a->attr.name, "ckpt_thread_ioprio")) { + struct ckpt_req_control *cprc = &sbi->cprc_info; + int class = IOPRIO_PRIO_CLASS(cprc->ckpt_thread_ioprio); + int level = IOPRIO_PRIO_LEVEL(cprc->ckpt_thread_ioprio); + + if (class != IOPRIO_CLASS_RT && class != IOPRIO_CLASS_BE) + return -EINVAL; + + return sysfs_emit(buf, "%s,%d\n", + class == IOPRIO_CLASS_RT ? "rt" : "be", level); + } + +#ifdef CONFIG_F2FS_FS_COMPRESSION + if (!strcmp(a->attr.name, "compr_written_block")) + return sysfs_emit(buf, "%llu\n", sbi->compr_written_block); + + if (!strcmp(a->attr.name, "compr_saved_block")) + return sysfs_emit(buf, "%llu\n", sbi->compr_saved_block); + + if (!strcmp(a->attr.name, "compr_new_inode")) + return sysfs_emit(buf, "%u\n", sbi->compr_new_inode); +#endif + + if (!strcmp(a->attr.name, "gc_segment_mode")) + return sysfs_emit(buf, "%u\n", sbi->gc_segment_mode); + + if (!strcmp(a->attr.name, "gc_reclaimed_segments")) { + return sysfs_emit(buf, "%u\n", + sbi->gc_reclaimed_segs[sbi->gc_segment_mode]); + } + + if (!strcmp(a->attr.name, "current_atomic_write")) { + s64 current_write = atomic64_read(&sbi->current_atomic_write); + + return sysfs_emit(buf, "%lld\n", current_write); + } + + if (!strcmp(a->attr.name, "peak_atomic_write")) + return sysfs_emit(buf, "%lld\n", sbi->peak_atomic_write); + + if (!strcmp(a->attr.name, "committed_atomic_block")) + return sysfs_emit(buf, "%llu\n", sbi->committed_atomic_block); + + if (!strcmp(a->attr.name, "revoked_atomic_block")) + return sysfs_emit(buf, "%llu\n", sbi->revoked_atomic_block); + +#ifdef CONFIG_F2FS_STAT_FS + if (!strcmp(a->attr.name, "cp_foreground_calls")) + return sysfs_emit(buf, "%d\n", + atomic_read(&sbi->cp_call_count[TOTAL_CALL]) - + atomic_read(&sbi->cp_call_count[BACKGROUND])); + if (!strcmp(a->attr.name, "cp_background_calls")) + return sysfs_emit(buf, "%d\n", + atomic_read(&sbi->cp_call_count[BACKGROUND])); +#endif + ui = (unsigned int *)(ptr + a->offset); - return snprintf(buf, PAGE_SIZE, "%u\n", *ui); + return sysfs_emit(buf, "%u\n", *ui); } -static ssize_t f2fs_sbi_store(struct f2fs_attr *a, +static ssize_t __sbi_store(struct f2fs_attr *a, struct f2fs_sb_info *sbi, const char *buf, size_t count) { @@ -104,30 +446,490 @@ static ssize_t f2fs_sbi_store(struct f2fs_attr *a, if (!ptr) return -EINVAL; + if (!strcmp(a->attr.name, "extension_list")) { + const char *name = strim((char *)buf); + bool set = true, hot; + + if (!strncmp(name, "[h]", 3)) + hot = true; + else if (!strncmp(name, "[c]", 3)) + hot = false; + else + return -EINVAL; + + name += 3; + + if (*name == '!') { + name++; + set = false; + } + + if (!strlen(name) || strlen(name) >= F2FS_EXTENSION_LEN) + return -EINVAL; + + f2fs_down_write(&sbi->sb_lock); + + ret = f2fs_update_extension_list(sbi, name, hot, set); + if (ret) + goto out; + + ret = f2fs_commit_super(sbi, false); + if (ret) + f2fs_update_extension_list(sbi, name, hot, !set); +out: + f2fs_up_write(&sbi->sb_lock); + return ret ? ret : count; + } + + if (!strcmp(a->attr.name, "ckpt_thread_ioprio")) { + const char *name = strim((char *)buf); + struct ckpt_req_control *cprc = &sbi->cprc_info; + int class; + long level; + int ret; + + if (!strncmp(name, "rt,", 3)) + class = IOPRIO_CLASS_RT; + else if (!strncmp(name, "be,", 3)) + class = IOPRIO_CLASS_BE; + else + return -EINVAL; + + name += 3; + ret = kstrtol(name, 10, &level); + if (ret) + return ret; + if (level >= IOPRIO_NR_LEVELS || level < 0) + return -EINVAL; + + cprc->ckpt_thread_ioprio = IOPRIO_PRIO_VALUE(class, level); + if (test_opt(sbi, MERGE_CHECKPOINT)) { + ret = set_task_ioprio(cprc->f2fs_issue_ckpt, + cprc->ckpt_thread_ioprio); + if (ret) + return ret; + } + + return count; + } + ui = (unsigned int *)(ptr + a->offset); ret = kstrtoul(skip_spaces(buf), 0, &t); if (ret < 0) return ret; #ifdef CONFIG_F2FS_FAULT_INJECTION - if (a->struct_type == FAULT_INFO_TYPE && t >= (1 << FAULT_MAX)) - return -EINVAL; + if (a->struct_type == FAULT_INFO_TYPE) { + if (f2fs_build_fault_attr(sbi, 0, t, FAULT_TYPE)) + return -EINVAL; + return count; + } + if (a->struct_type == FAULT_INFO_RATE) { + if (f2fs_build_fault_attr(sbi, t, 0, FAULT_RATE)) + return -EINVAL; + return count; + } #endif if (a->struct_type == RESERVED_BLOCKS) { spin_lock(&sbi->stat_lock); - if ((unsigned long)sbi->total_valid_block_count + t > - (unsigned long)sbi->user_block_count) { + if (t > (unsigned long)(sbi->user_block_count - + F2FS_OPTION(sbi).root_reserved_blocks)) { spin_unlock(&sbi->stat_lock); return -EINVAL; } *ui = t; + sbi->current_reserved_blocks = min(sbi->reserved_blocks, + sbi->user_block_count - valid_user_blocks(sbi)); spin_unlock(&sbi->stat_lock); return count; } - *ui = t; + + if (!strcmp(a->attr.name, "discard_io_aware_gran")) { + if (t > MAX_PLIST_NUM) + return -EINVAL; + if (!f2fs_block_unit_discard(sbi)) + return -EINVAL; + if (t == *ui) + return count; + *ui = t; + return count; + } + + if (!strcmp(a->attr.name, "discard_granularity")) { + if (t == 0 || t > MAX_PLIST_NUM) + return -EINVAL; + if (!f2fs_block_unit_discard(sbi)) + return -EINVAL; + if (t == *ui) + return count; + *ui = t; + return count; + } + + if (!strcmp(a->attr.name, "max_ordered_discard")) { + if (t == 0 || t > MAX_PLIST_NUM) + return -EINVAL; + if (!f2fs_block_unit_discard(sbi)) + return -EINVAL; + *ui = t; + return count; + } + + if (!strcmp(a->attr.name, "discard_urgent_util")) { + if (t > 100) + return -EINVAL; + *ui = t; + return count; + } + + if (!strcmp(a->attr.name, "discard_io_aware")) { + if (t >= DPOLICY_IO_AWARE_MAX) + return -EINVAL; + *ui = t; + return count; + } + + if (!strcmp(a->attr.name, "migration_granularity")) { + if (t == 0 || t > SEGS_PER_SEC(sbi)) + return -EINVAL; + } + + if (!strcmp(a->attr.name, "migration_window_granularity")) { + if (t == 0 || t > SEGS_PER_SEC(sbi)) + return -EINVAL; + } + + if (!strcmp(a->attr.name, "gc_urgent")) { + if (t == 0) { + sbi->gc_mode = GC_NORMAL; + } else if (t == 1) { + sbi->gc_mode = GC_URGENT_HIGH; + if (sbi->gc_thread) { + sbi->gc_thread->gc_wake = true; + wake_up_interruptible_all( + &sbi->gc_thread->gc_wait_queue_head); + wake_up_discard_thread(sbi, true); + } + } else if (t == 2) { + sbi->gc_mode = GC_URGENT_LOW; + } else if (t == 3) { + sbi->gc_mode = GC_URGENT_MID; + if (sbi->gc_thread) { + sbi->gc_thread->gc_wake = true; + wake_up_interruptible_all( + &sbi->gc_thread->gc_wait_queue_head); + } + } else { + return -EINVAL; + } + return count; + } + if (!strcmp(a->attr.name, "gc_idle")) { + if (t == GC_IDLE_CB) { + sbi->gc_mode = GC_IDLE_CB; + } else if (t == GC_IDLE_GREEDY) { + sbi->gc_mode = GC_IDLE_GREEDY; + } else if (t == GC_IDLE_AT) { + if (!sbi->am.atgc_enabled) + return -EINVAL; + sbi->gc_mode = GC_IDLE_AT; + } else { + sbi->gc_mode = GC_NORMAL; + } + return count; + } + + if (!strcmp(a->attr.name, "gc_remaining_trials")) { + spin_lock(&sbi->gc_remaining_trials_lock); + sbi->gc_remaining_trials = t; + spin_unlock(&sbi->gc_remaining_trials_lock); + + return count; + } + + if (!strcmp(a->attr.name, "gc_no_zoned_gc_percent")) { + if (t > 100) + return -EINVAL; + *ui = (unsigned int)t; + return count; + } + + if (!strcmp(a->attr.name, "gc_boost_zoned_gc_percent")) { + if (t > 100) + return -EINVAL; + *ui = (unsigned int)t; + return count; + } + + if (!strcmp(a->attr.name, "gc_valid_thresh_ratio")) { + if (t > 100) + return -EINVAL; + *ui = (unsigned int)t; + return count; + } + +#ifdef CONFIG_F2FS_IOSTAT + if (!strcmp(a->attr.name, "iostat_enable")) { + sbi->iostat_enable = !!t; + if (!sbi->iostat_enable) + f2fs_reset_iostat(sbi); + return count; + } + + if (!strcmp(a->attr.name, "iostat_period_ms")) { + if (t < MIN_IOSTAT_PERIOD_MS || t > MAX_IOSTAT_PERIOD_MS) + return -EINVAL; + spin_lock_irq(&sbi->iostat_lock); + sbi->iostat_period_ms = (unsigned int)t; + spin_unlock_irq(&sbi->iostat_lock); + return count; + } +#endif + +#ifdef CONFIG_BLK_DEV_ZONED + if (!strcmp(a->attr.name, "blkzone_alloc_policy")) { + if (t < BLKZONE_ALLOC_PRIOR_SEQ || t > BLKZONE_ALLOC_PRIOR_CONV) + return -EINVAL; + sbi->blkzone_alloc_policy = t; + return count; + } +#endif + +#ifdef CONFIG_F2FS_FS_COMPRESSION + if (!strcmp(a->attr.name, "compr_written_block") || + !strcmp(a->attr.name, "compr_saved_block")) { + if (t != 0) + return -EINVAL; + sbi->compr_written_block = 0; + sbi->compr_saved_block = 0; + return count; + } + + if (!strcmp(a->attr.name, "compr_new_inode")) { + if (t != 0) + return -EINVAL; + sbi->compr_new_inode = 0; + return count; + } + + if (!strcmp(a->attr.name, "compress_percent")) { + if (t == 0 || t > 100) + return -EINVAL; + *ui = t; + return count; + } + + if (!strcmp(a->attr.name, "compress_watermark")) { + if (t == 0 || t > 100) + return -EINVAL; + *ui = t; + return count; + } +#endif + + if (!strcmp(a->attr.name, "atgc_candidate_ratio")) { + if (t > 100) + return -EINVAL; + sbi->am.candidate_ratio = t; + return count; + } + + if (!strcmp(a->attr.name, "atgc_age_weight")) { + if (t > 100) + return -EINVAL; + sbi->am.age_weight = t; + return count; + } + + if (!strcmp(a->attr.name, "gc_segment_mode")) { + if (t < MAX_GC_MODE) + sbi->gc_segment_mode = t; + else + return -EINVAL; + return count; + } + + if (!strcmp(a->attr.name, "gc_pin_file_threshold")) { + if (t > MAX_GC_FAILED_PINNED_FILES) + return -EINVAL; + sbi->gc_pin_file_threshold = t; + return count; + } + + if (!strcmp(a->attr.name, "gc_reclaimed_segments")) { + if (t != 0) + return -EINVAL; + sbi->gc_reclaimed_segs[sbi->gc_segment_mode] = 0; + return count; + } + + if (!strcmp(a->attr.name, "seq_file_ra_mul")) { + if (t >= MIN_RA_MUL && t <= MAX_RA_MUL) + sbi->seq_file_ra_mul = t; + else + return -EINVAL; + return count; + } + + if (!strcmp(a->attr.name, "max_fragment_chunk")) { + if (t >= MIN_FRAGMENT_SIZE && t <= MAX_FRAGMENT_SIZE) + sbi->max_fragment_chunk = t; + else + return -EINVAL; + return count; + } + + if (!strcmp(a->attr.name, "max_fragment_hole")) { + if (t >= MIN_FRAGMENT_SIZE && t <= MAX_FRAGMENT_SIZE) + sbi->max_fragment_hole = t; + else + return -EINVAL; + return count; + } + + if (!strcmp(a->attr.name, "peak_atomic_write")) { + if (t != 0) + return -EINVAL; + sbi->peak_atomic_write = 0; + return count; + } + + if (!strcmp(a->attr.name, "committed_atomic_block")) { + if (t != 0) + return -EINVAL; + sbi->committed_atomic_block = 0; + return count; + } + + if (!strcmp(a->attr.name, "revoked_atomic_block")) { + if (t != 0) + return -EINVAL; + sbi->revoked_atomic_block = 0; + return count; + } + + if (!strcmp(a->attr.name, "readdir_ra")) { + sbi->readdir_ra = !!t; + return count; + } + + if (!strcmp(a->attr.name, "hot_data_age_threshold")) { + if (t == 0 || t >= sbi->warm_data_age_threshold) + return -EINVAL; + if (t == *ui) + return count; + *ui = (unsigned int)t; + return count; + } + + if (!strcmp(a->attr.name, "warm_data_age_threshold")) { + if (t <= sbi->hot_data_age_threshold) + return -EINVAL; + if (t == *ui) + return count; + *ui = (unsigned int)t; + return count; + } + + if (!strcmp(a->attr.name, "last_age_weight")) { + if (t > 100) + return -EINVAL; + if (t == *ui) + return count; + *ui = (unsigned int)t; + return count; + } + + if (!strcmp(a->attr.name, "max_read_extent_count")) { + if (t > UINT_MAX) + return -EINVAL; + *ui = (unsigned int)t; + return count; + } + + if (!strcmp(a->attr.name, "ipu_policy")) { + if (t >= BIT(F2FS_IPU_MAX)) + return -EINVAL; + /* allow F2FS_IPU_NOCACHE only for IPU in the pinned file */ + if (f2fs_lfs_mode(sbi) && (t & ~BIT(F2FS_IPU_NOCACHE))) + return -EINVAL; + SM_I(sbi)->ipu_policy = (unsigned int)t; + return count; + } + + if (!strcmp(a->attr.name, "dir_level")) { + if (t > MAX_DIR_HASH_DEPTH) + return -EINVAL; + sbi->dir_level = t; + return count; + } + + if (!strcmp(a->attr.name, "reserved_pin_section")) { + if (t > GET_SEC_FROM_SEG(sbi, overprovision_segments(sbi))) + return -EINVAL; + *ui = (unsigned int)t; + return count; + } + + if (!strcmp(a->attr.name, "gc_boost_gc_multiple")) { + if (t < 1 || t > SEGS_PER_SEC(sbi)) + return -EINVAL; + sbi->gc_thread->boost_gc_multiple = (unsigned int)t; + return count; + } + + if (!strcmp(a->attr.name, "gc_boost_gc_greedy")) { + if (t > GC_GREEDY) + return -EINVAL; + sbi->gc_thread->boost_gc_greedy = (unsigned int)t; + return count; + } + + if (!strcmp(a->attr.name, "bggc_io_aware")) { + if (t < AWARE_ALL_IO || t > AWARE_NONE) + return -EINVAL; + sbi->bggc_io_aware = t; + return count; + } + + if (!strcmp(a->attr.name, "allocate_section_hint")) { + if (t < 0 || t > MAIN_SECS(sbi)) + return -EINVAL; + sbi->allocate_section_hint = t; + return count; + } + + if (!strcmp(a->attr.name, "allocate_section_policy")) { + if (t < ALLOCATE_FORWARD_NOHINT || t > ALLOCATE_FORWARD_FROM_HINT) + return -EINVAL; + sbi->allocate_section_policy = t; + return count; + } + + *ui = (unsigned int)t; + return count; } +static ssize_t f2fs_sbi_store(struct f2fs_attr *a, + struct f2fs_sb_info *sbi, + const char *buf, size_t count) +{ + ssize_t ret; + bool gc_entry = (!strcmp(a->attr.name, "gc_urgent") || + a->struct_type == GC_THREAD); + + if (gc_entry) { + if (!down_read_trylock(&sbi->sb->s_umount)) + return -EAGAIN; + } + ret = __sbi_store(a, sbi, buf, count); + if (gc_entry) + up_read(&sbi->sb->s_umount); + + return ret; +} + static ssize_t f2fs_attr_show(struct kobject *kobj, struct attribute *attr, char *buf) { @@ -155,6 +957,102 @@ static void f2fs_sb_release(struct kobject *kobj) complete(&sbi->s_kobj_unregister); } +static ssize_t f2fs_base_attr_show(struct kobject *kobj, + struct attribute *attr, char *buf) +{ + struct f2fs_base_attr *a = container_of(attr, + struct f2fs_base_attr, attr); + + return a->show ? a->show(a, buf) : 0; +} + +static ssize_t f2fs_base_attr_store(struct kobject *kobj, + struct attribute *attr, + const char *buf, size_t len) +{ + struct f2fs_base_attr *a = container_of(attr, + struct f2fs_base_attr, attr); + + return a->store ? a->store(a, buf, len) : 0; +} + +/* + * Note that there are three feature list entries: + * 1) /sys/fs/f2fs/features + * : shows runtime features supported by in-kernel f2fs along with Kconfig. + * - ref. F2FS_FEATURE_RO_ATTR() + * + * 2) /sys/fs/f2fs/$s_id/features <deprecated> + * : shows on-disk features enabled by mkfs.f2fs, used for old kernels. This + * won't add new feature anymore, and thus, users should check entries in 3) + * instead of this 2). + * + * 3) /sys/fs/f2fs/$s_id/feature_list + * : shows on-disk features enabled by mkfs.f2fs per instance, which follows + * sysfs entry rule where each entry should expose single value. + * This list covers old feature list provided by 2) and beyond. Therefore, + * please add new on-disk feature in this list only. + * - ref. F2FS_SB_FEATURE_RO_ATTR() + */ +static ssize_t f2fs_feature_show(struct f2fs_base_attr *a, char *buf) +{ + return sysfs_emit(buf, "supported\n"); +} + +#define F2FS_FEATURE_RO_ATTR(_name) \ +static struct f2fs_base_attr f2fs_base_attr_##_name = { \ + .attr = {.name = __stringify(_name), .mode = 0444 }, \ + .show = f2fs_feature_show, \ +} + +static ssize_t f2fs_tune_show(struct f2fs_base_attr *a, char *buf) +{ + unsigned int res = 0; + + if (!strcmp(a->attr.name, "reclaim_caches_kb")) + res = f2fs_donate_files(); + + return sysfs_emit(buf, "%u\n", res); +} + +static ssize_t f2fs_tune_store(struct f2fs_base_attr *a, + const char *buf, size_t count) +{ + unsigned long t; + int ret; + + ret = kstrtoul(skip_spaces(buf), 0, &t); + if (ret) + return ret; + + if (!strcmp(a->attr.name, "reclaim_caches_kb")) + f2fs_reclaim_caches(t); + + return count; +} + +#define F2FS_TUNE_RW_ATTR(_name) \ +static struct f2fs_base_attr f2fs_base_attr_##_name = { \ + .attr = {.name = __stringify(_name), .mode = 0644 }, \ + .show = f2fs_tune_show, \ + .store = f2fs_tune_store, \ +} + +static ssize_t f2fs_sb_feature_show(struct f2fs_attr *a, + struct f2fs_sb_info *sbi, char *buf) +{ + if (F2FS_HAS_FEATURE(sbi, a->id)) + return sysfs_emit(buf, "supported\n"); + return sysfs_emit(buf, "unsupported\n"); +} + +#define F2FS_SB_FEATURE_RO_ATTR(_name, _feat) \ +static struct f2fs_attr f2fs_attr_sb_##_name = { \ + .attr = {.name = __stringify(_name), .mode = 0444 }, \ + .show = f2fs_sb_feature_show, \ + .id = F2FS_FEATURE_##_feat, \ +} + #define F2FS_ATTR_OFFSET(_struct_type, _name, _mode, _show, _store, _offset) \ static struct f2fs_attr f2fs_attr_##_name = { \ .attr = {.name = __stringify(_name), .mode = _mode }, \ @@ -164,6 +1062,11 @@ static struct f2fs_attr f2fs_attr_##_name = { \ .offset = _offset \ } +#define F2FS_RO_ATTR(struct_type, struct_name, name, elname) \ + F2FS_ATTR_OFFSET(struct_type, name, 0444, \ + f2fs_sbi_show, NULL, \ + offsetof(struct struct_name, elname)) + #define F2FS_RW_ATTR(struct_type, struct_name, name, elname) \ F2FS_ATTR_OFFSET(struct_type, name, 0644, \ f2fs_sbi_show, f2fs_sbi_store, \ @@ -172,72 +1075,573 @@ static struct f2fs_attr f2fs_attr_##_name = { \ #define F2FS_GENERAL_RO_ATTR(name) \ static struct f2fs_attr f2fs_attr_##name = __ATTR(name, 0444, name##_show, NULL) -F2FS_RW_ATTR(GC_THREAD, f2fs_gc_kthread, gc_min_sleep_time, min_sleep_time); -F2FS_RW_ATTR(GC_THREAD, f2fs_gc_kthread, gc_max_sleep_time, max_sleep_time); -F2FS_RW_ATTR(GC_THREAD, f2fs_gc_kthread, gc_no_gc_sleep_time, no_gc_sleep_time); -F2FS_RW_ATTR(GC_THREAD, f2fs_gc_kthread, gc_idle, gc_idle); -F2FS_RW_ATTR(SM_INFO, f2fs_sm_info, reclaim_segments, rec_prefree_segments); -F2FS_RW_ATTR(DCC_INFO, discard_cmd_control, max_small_discards, max_discards); -F2FS_RW_ATTR(RESERVED_BLOCKS, f2fs_sb_info, reserved_blocks, reserved_blocks); -F2FS_RW_ATTR(SM_INFO, f2fs_sm_info, batched_trim_sections, trim_sections); -F2FS_RW_ATTR(SM_INFO, f2fs_sm_info, ipu_policy, ipu_policy); -F2FS_RW_ATTR(SM_INFO, f2fs_sm_info, min_ipu_util, min_ipu_util); -F2FS_RW_ATTR(SM_INFO, f2fs_sm_info, min_fsync_blocks, min_fsync_blocks); -F2FS_RW_ATTR(SM_INFO, f2fs_sm_info, min_hot_blocks, min_hot_blocks); -F2FS_RW_ATTR(NM_INFO, f2fs_nm_info, ram_thresh, ram_thresh); -F2FS_RW_ATTR(NM_INFO, f2fs_nm_info, ra_nid_pages, ra_nid_pages); -F2FS_RW_ATTR(NM_INFO, f2fs_nm_info, dirty_nats_ratio, dirty_nats_ratio); -F2FS_RW_ATTR(F2FS_SBI, f2fs_sb_info, max_victim_search, max_victim_search); -F2FS_RW_ATTR(F2FS_SBI, f2fs_sb_info, dir_level, dir_level); -F2FS_RW_ATTR(F2FS_SBI, f2fs_sb_info, cp_interval, interval_time[CP_TIME]); -F2FS_RW_ATTR(F2FS_SBI, f2fs_sb_info, idle_interval, interval_time[REQ_TIME]); +#ifdef CONFIG_F2FS_STAT_FS +#define STAT_INFO_RO_ATTR(name, elname) \ + F2FS_RO_ATTR(STAT_INFO, f2fs_stat_info, name, elname) +#endif + +#define GC_THREAD_RW_ATTR(name, elname) \ + F2FS_RW_ATTR(GC_THREAD, f2fs_gc_kthread, name, elname) + +#define SM_INFO_RW_ATTR(name, elname) \ + F2FS_RW_ATTR(SM_INFO, f2fs_sm_info, name, elname) + +#define SM_INFO_GENERAL_RW_ATTR(elname) \ + SM_INFO_RW_ATTR(elname, elname) + +#define DCC_INFO_RW_ATTR(name, elname) \ + F2FS_RW_ATTR(DCC_INFO, discard_cmd_control, name, elname) + +#define DCC_INFO_GENERAL_RW_ATTR(elname) \ + DCC_INFO_RW_ATTR(elname, elname) + +#define NM_INFO_RW_ATTR(name, elname) \ + F2FS_RW_ATTR(NM_INFO, f2fs_nm_info, name, elname) + +#define NM_INFO_GENERAL_RW_ATTR(elname) \ + NM_INFO_RW_ATTR(elname, elname) + +#define F2FS_SBI_RW_ATTR(name, elname) \ + F2FS_RW_ATTR(F2FS_SBI, f2fs_sb_info, name, elname) + +#define F2FS_SBI_GENERAL_RW_ATTR(elname) \ + F2FS_SBI_RW_ATTR(elname, elname) + +#define F2FS_SBI_GENERAL_RO_ATTR(elname) \ + F2FS_RO_ATTR(F2FS_SBI, f2fs_sb_info, elname, elname) + #ifdef CONFIG_F2FS_FAULT_INJECTION -F2FS_RW_ATTR(FAULT_INFO_RATE, f2fs_fault_info, inject_rate, inject_rate); -F2FS_RW_ATTR(FAULT_INFO_TYPE, f2fs_fault_info, inject_type, inject_type); +#define FAULT_INFO_GENERAL_RW_ATTR(type, elname) \ + F2FS_RW_ATTR(type, f2fs_fault_info, elname, elname) #endif + +#define RESERVED_BLOCKS_GENERAL_RW_ATTR(elname) \ + F2FS_RW_ATTR(RESERVED_BLOCKS, f2fs_sb_info, elname, elname) + +#define CPRC_INFO_GENERAL_RW_ATTR(elname) \ + F2FS_RW_ATTR(CPRC_INFO, ckpt_req_control, elname, elname) + +#define ATGC_INFO_RW_ATTR(name, elname) \ + F2FS_RW_ATTR(ATGC_INFO, atgc_management, name, elname) + +/* GC_THREAD ATTR */ +GC_THREAD_RW_ATTR(gc_urgent_sleep_time, urgent_sleep_time); +GC_THREAD_RW_ATTR(gc_min_sleep_time, min_sleep_time); +GC_THREAD_RW_ATTR(gc_max_sleep_time, max_sleep_time); +GC_THREAD_RW_ATTR(gc_no_gc_sleep_time, no_gc_sleep_time); +GC_THREAD_RW_ATTR(gc_no_zoned_gc_percent, no_zoned_gc_percent); +GC_THREAD_RW_ATTR(gc_boost_zoned_gc_percent, boost_zoned_gc_percent); +GC_THREAD_RW_ATTR(gc_valid_thresh_ratio, valid_thresh_ratio); +GC_THREAD_RW_ATTR(gc_boost_gc_multiple, boost_gc_multiple); +GC_THREAD_RW_ATTR(gc_boost_gc_greedy, boost_gc_greedy); + +/* SM_INFO ATTR */ +SM_INFO_RW_ATTR(reclaim_segments, rec_prefree_segments); +SM_INFO_GENERAL_RW_ATTR(ipu_policy); +SM_INFO_GENERAL_RW_ATTR(min_ipu_util); +SM_INFO_GENERAL_RW_ATTR(min_fsync_blocks); +SM_INFO_GENERAL_RW_ATTR(min_seq_blocks); +SM_INFO_GENERAL_RW_ATTR(min_hot_blocks); +SM_INFO_GENERAL_RW_ATTR(min_ssr_sections); +SM_INFO_GENERAL_RW_ATTR(reserved_segments); + +/* DCC_INFO ATTR */ +DCC_INFO_RW_ATTR(max_small_discards, max_discards); +DCC_INFO_GENERAL_RW_ATTR(max_discard_request); +DCC_INFO_GENERAL_RW_ATTR(min_discard_issue_time); +DCC_INFO_GENERAL_RW_ATTR(mid_discard_issue_time); +DCC_INFO_GENERAL_RW_ATTR(max_discard_issue_time); +DCC_INFO_GENERAL_RW_ATTR(discard_io_aware_gran); +DCC_INFO_GENERAL_RW_ATTR(discard_urgent_util); +DCC_INFO_GENERAL_RW_ATTR(discard_granularity); +DCC_INFO_GENERAL_RW_ATTR(max_ordered_discard); +DCC_INFO_GENERAL_RW_ATTR(discard_io_aware); + +/* NM_INFO ATTR */ +NM_INFO_RW_ATTR(max_roll_forward_node_blocks, max_rf_node_blocks); +NM_INFO_GENERAL_RW_ATTR(ram_thresh); +NM_INFO_GENERAL_RW_ATTR(ra_nid_pages); +NM_INFO_GENERAL_RW_ATTR(dirty_nats_ratio); + +/* F2FS_SBI ATTR */ +F2FS_RW_ATTR(F2FS_SBI, f2fs_super_block, extension_list, extension_list); +F2FS_SBI_RW_ATTR(gc_idle, gc_mode); +F2FS_SBI_RW_ATTR(gc_urgent, gc_mode); +F2FS_SBI_RW_ATTR(cp_interval, interval_time[CP_TIME]); +F2FS_SBI_RW_ATTR(idle_interval, interval_time[REQ_TIME]); +F2FS_SBI_RW_ATTR(discard_idle_interval, interval_time[DISCARD_TIME]); +F2FS_SBI_RW_ATTR(gc_idle_interval, interval_time[GC_TIME]); +F2FS_SBI_RW_ATTR(umount_discard_timeout, interval_time[UMOUNT_DISCARD_TIMEOUT]); +F2FS_SBI_RW_ATTR(gc_pin_file_thresh, gc_pin_file_threshold); +F2FS_SBI_RW_ATTR(gc_reclaimed_segments, gc_reclaimed_segs); +F2FS_SBI_GENERAL_RW_ATTR(max_victim_search); +F2FS_SBI_GENERAL_RW_ATTR(migration_granularity); +F2FS_SBI_GENERAL_RW_ATTR(migration_window_granularity); +F2FS_SBI_GENERAL_RW_ATTR(dir_level); +F2FS_SBI_GENERAL_RW_ATTR(allocate_section_hint); +F2FS_SBI_GENERAL_RW_ATTR(allocate_section_policy); +#ifdef CONFIG_F2FS_IOSTAT +F2FS_SBI_GENERAL_RW_ATTR(iostat_enable); +F2FS_SBI_GENERAL_RW_ATTR(iostat_period_ms); +#endif +F2FS_SBI_GENERAL_RW_ATTR(readdir_ra); +F2FS_SBI_GENERAL_RW_ATTR(max_io_bytes); +F2FS_SBI_GENERAL_RW_ATTR(data_io_flag); +F2FS_SBI_GENERAL_RW_ATTR(node_io_flag); +F2FS_SBI_GENERAL_RW_ATTR(gc_remaining_trials); +F2FS_SBI_GENERAL_RW_ATTR(seq_file_ra_mul); +F2FS_SBI_GENERAL_RW_ATTR(gc_segment_mode); +F2FS_SBI_GENERAL_RW_ATTR(max_fragment_chunk); +F2FS_SBI_GENERAL_RW_ATTR(max_fragment_hole); +#ifdef CONFIG_F2FS_FS_COMPRESSION +F2FS_SBI_GENERAL_RW_ATTR(compr_written_block); +F2FS_SBI_GENERAL_RW_ATTR(compr_saved_block); +F2FS_SBI_GENERAL_RW_ATTR(compr_new_inode); +F2FS_SBI_GENERAL_RW_ATTR(compress_percent); +F2FS_SBI_GENERAL_RW_ATTR(compress_watermark); +#endif +/* atomic write */ +F2FS_SBI_GENERAL_RO_ATTR(current_atomic_write); +F2FS_SBI_GENERAL_RW_ATTR(peak_atomic_write); +F2FS_SBI_GENERAL_RW_ATTR(committed_atomic_block); +F2FS_SBI_GENERAL_RW_ATTR(revoked_atomic_block); +/* block age extent cache */ +F2FS_SBI_GENERAL_RW_ATTR(hot_data_age_threshold); +F2FS_SBI_GENERAL_RW_ATTR(warm_data_age_threshold); +F2FS_SBI_GENERAL_RW_ATTR(last_age_weight); +/* read extent cache */ +F2FS_SBI_GENERAL_RW_ATTR(max_read_extent_count); +#ifdef CONFIG_BLK_DEV_ZONED +F2FS_SBI_GENERAL_RO_ATTR(unusable_blocks_per_sec); +F2FS_SBI_GENERAL_RO_ATTR(max_open_zones); +F2FS_SBI_GENERAL_RW_ATTR(blkzone_alloc_policy); +#endif +F2FS_SBI_GENERAL_RW_ATTR(carve_out); +F2FS_SBI_GENERAL_RW_ATTR(reserved_pin_section); +F2FS_SBI_GENERAL_RW_ATTR(bggc_io_aware); + +/* STAT_INFO ATTR */ +#ifdef CONFIG_F2FS_STAT_FS +STAT_INFO_RO_ATTR(cp_foreground_calls, cp_call_count[FOREGROUND]); +STAT_INFO_RO_ATTR(cp_background_calls, cp_call_count[BACKGROUND]); +STAT_INFO_RO_ATTR(gc_foreground_calls, gc_call_count[FOREGROUND]); +STAT_INFO_RO_ATTR(gc_background_calls, gc_call_count[BACKGROUND]); +#endif + +/* FAULT_INFO ATTR */ +#ifdef CONFIG_F2FS_FAULT_INJECTION +FAULT_INFO_GENERAL_RW_ATTR(FAULT_INFO_RATE, inject_rate); +FAULT_INFO_GENERAL_RW_ATTR(FAULT_INFO_TYPE, inject_type); +#endif + +/* RESERVED_BLOCKS ATTR */ +RESERVED_BLOCKS_GENERAL_RW_ATTR(reserved_blocks); + +/* CPRC_INFO ATTR */ +CPRC_INFO_GENERAL_RW_ATTR(ckpt_thread_ioprio); + +/* ATGC_INFO ATTR */ +ATGC_INFO_RW_ATTR(atgc_candidate_ratio, candidate_ratio); +ATGC_INFO_RW_ATTR(atgc_candidate_count, max_candidate_count); +ATGC_INFO_RW_ATTR(atgc_age_weight, age_weight); +ATGC_INFO_RW_ATTR(atgc_age_threshold, age_threshold); + +F2FS_GENERAL_RO_ATTR(dirty_segments); +F2FS_GENERAL_RO_ATTR(free_segments); +F2FS_GENERAL_RO_ATTR(ovp_segments); F2FS_GENERAL_RO_ATTR(lifetime_write_kbytes); +F2FS_GENERAL_RO_ATTR(features); +F2FS_GENERAL_RO_ATTR(current_reserved_blocks); +F2FS_GENERAL_RO_ATTR(unusable); +F2FS_GENERAL_RO_ATTR(encoding); +F2FS_GENERAL_RO_ATTR(encoding_flags); +F2FS_GENERAL_RO_ATTR(effective_lookup_mode); +F2FS_GENERAL_RO_ATTR(mounted_time_sec); +F2FS_GENERAL_RO_ATTR(main_blkaddr); +F2FS_GENERAL_RO_ATTR(pending_discard); +F2FS_GENERAL_RO_ATTR(atgc_enabled); +F2FS_GENERAL_RO_ATTR(gc_mode); +#ifdef CONFIG_F2FS_STAT_FS +F2FS_GENERAL_RO_ATTR(moved_blocks_background); +F2FS_GENERAL_RO_ATTR(moved_blocks_foreground); +F2FS_GENERAL_RO_ATTR(avg_vblocks); +#endif + +#ifdef CONFIG_FS_ENCRYPTION +F2FS_FEATURE_RO_ATTR(encryption); +F2FS_FEATURE_RO_ATTR(test_dummy_encryption_v2); +#if IS_ENABLED(CONFIG_UNICODE) +F2FS_FEATURE_RO_ATTR(encrypted_casefold); +#endif +#endif /* CONFIG_FS_ENCRYPTION */ +#ifdef CONFIG_BLK_DEV_ZONED +F2FS_FEATURE_RO_ATTR(block_zoned); +#endif +F2FS_FEATURE_RO_ATTR(atomic_write); +F2FS_FEATURE_RO_ATTR(extra_attr); +F2FS_FEATURE_RO_ATTR(project_quota); +F2FS_FEATURE_RO_ATTR(inode_checksum); +F2FS_FEATURE_RO_ATTR(flexible_inline_xattr); +F2FS_FEATURE_RO_ATTR(quota_ino); +F2FS_FEATURE_RO_ATTR(inode_crtime); +F2FS_FEATURE_RO_ATTR(lost_found); +#ifdef CONFIG_FS_VERITY +F2FS_FEATURE_RO_ATTR(verity); +#endif +F2FS_FEATURE_RO_ATTR(sb_checksum); +#if IS_ENABLED(CONFIG_UNICODE) +F2FS_FEATURE_RO_ATTR(casefold); +#endif +F2FS_FEATURE_RO_ATTR(readonly); +#ifdef CONFIG_F2FS_FS_COMPRESSION +F2FS_FEATURE_RO_ATTR(compression); +#endif +F2FS_FEATURE_RO_ATTR(pin_file); +#ifdef CONFIG_UNICODE +F2FS_FEATURE_RO_ATTR(linear_lookup); +#endif +F2FS_FEATURE_RO_ATTR(packed_ssa); #define ATTR_LIST(name) (&f2fs_attr_##name.attr) static struct attribute *f2fs_attrs[] = { + ATTR_LIST(gc_urgent_sleep_time), ATTR_LIST(gc_min_sleep_time), ATTR_LIST(gc_max_sleep_time), ATTR_LIST(gc_no_gc_sleep_time), + ATTR_LIST(gc_no_zoned_gc_percent), + ATTR_LIST(gc_boost_zoned_gc_percent), + ATTR_LIST(gc_valid_thresh_ratio), + ATTR_LIST(gc_boost_gc_multiple), + ATTR_LIST(gc_boost_gc_greedy), ATTR_LIST(gc_idle), + ATTR_LIST(gc_urgent), ATTR_LIST(reclaim_segments), + ATTR_LIST(main_blkaddr), ATTR_LIST(max_small_discards), - ATTR_LIST(batched_trim_sections), + ATTR_LIST(max_discard_request), + ATTR_LIST(min_discard_issue_time), + ATTR_LIST(mid_discard_issue_time), + ATTR_LIST(max_discard_issue_time), + ATTR_LIST(discard_io_aware_gran), + ATTR_LIST(discard_urgent_util), + ATTR_LIST(discard_granularity), + ATTR_LIST(max_ordered_discard), + ATTR_LIST(discard_io_aware), + ATTR_LIST(pending_discard), + ATTR_LIST(gc_mode), ATTR_LIST(ipu_policy), ATTR_LIST(min_ipu_util), ATTR_LIST(min_fsync_blocks), + ATTR_LIST(min_seq_blocks), ATTR_LIST(min_hot_blocks), + ATTR_LIST(min_ssr_sections), + ATTR_LIST(reserved_segments), ATTR_LIST(max_victim_search), + ATTR_LIST(migration_granularity), + ATTR_LIST(migration_window_granularity), ATTR_LIST(dir_level), ATTR_LIST(ram_thresh), ATTR_LIST(ra_nid_pages), ATTR_LIST(dirty_nats_ratio), + ATTR_LIST(max_roll_forward_node_blocks), ATTR_LIST(cp_interval), ATTR_LIST(idle_interval), + ATTR_LIST(discard_idle_interval), + ATTR_LIST(gc_idle_interval), + ATTR_LIST(umount_discard_timeout), + ATTR_LIST(bggc_io_aware), +#ifdef CONFIG_F2FS_IOSTAT + ATTR_LIST(iostat_enable), + ATTR_LIST(iostat_period_ms), +#endif + ATTR_LIST(readdir_ra), + ATTR_LIST(max_io_bytes), + ATTR_LIST(gc_pin_file_thresh), + ATTR_LIST(extension_list), #ifdef CONFIG_F2FS_FAULT_INJECTION ATTR_LIST(inject_rate), ATTR_LIST(inject_type), #endif + ATTR_LIST(data_io_flag), + ATTR_LIST(node_io_flag), + ATTR_LIST(gc_remaining_trials), + ATTR_LIST(ckpt_thread_ioprio), + ATTR_LIST(dirty_segments), + ATTR_LIST(free_segments), + ATTR_LIST(ovp_segments), + ATTR_LIST(unusable), ATTR_LIST(lifetime_write_kbytes), + ATTR_LIST(features), ATTR_LIST(reserved_blocks), + ATTR_LIST(current_reserved_blocks), + ATTR_LIST(encoding), + ATTR_LIST(encoding_flags), + ATTR_LIST(effective_lookup_mode), + ATTR_LIST(mounted_time_sec), +#ifdef CONFIG_F2FS_STAT_FS + ATTR_LIST(cp_foreground_calls), + ATTR_LIST(cp_background_calls), + ATTR_LIST(gc_foreground_calls), + ATTR_LIST(gc_background_calls), + ATTR_LIST(moved_blocks_foreground), + ATTR_LIST(moved_blocks_background), + ATTR_LIST(avg_vblocks), +#endif +#ifdef CONFIG_BLK_DEV_ZONED + ATTR_LIST(unusable_blocks_per_sec), + ATTR_LIST(max_open_zones), + ATTR_LIST(blkzone_alloc_policy), +#endif +#ifdef CONFIG_F2FS_FS_COMPRESSION + ATTR_LIST(compr_written_block), + ATTR_LIST(compr_saved_block), + ATTR_LIST(compr_new_inode), + ATTR_LIST(compress_percent), + ATTR_LIST(compress_watermark), +#endif + /* For ATGC */ + ATTR_LIST(atgc_candidate_ratio), + ATTR_LIST(atgc_candidate_count), + ATTR_LIST(atgc_age_weight), + ATTR_LIST(atgc_age_threshold), + ATTR_LIST(atgc_enabled), + ATTR_LIST(seq_file_ra_mul), + ATTR_LIST(gc_segment_mode), + ATTR_LIST(gc_reclaimed_segments), + ATTR_LIST(max_fragment_chunk), + ATTR_LIST(max_fragment_hole), + ATTR_LIST(current_atomic_write), + ATTR_LIST(peak_atomic_write), + ATTR_LIST(committed_atomic_block), + ATTR_LIST(revoked_atomic_block), + ATTR_LIST(hot_data_age_threshold), + ATTR_LIST(warm_data_age_threshold), + ATTR_LIST(last_age_weight), + ATTR_LIST(max_read_extent_count), + ATTR_LIST(carve_out), + ATTR_LIST(reserved_pin_section), + ATTR_LIST(allocate_section_hint), + ATTR_LIST(allocate_section_policy), + NULL, +}; +ATTRIBUTE_GROUPS(f2fs); + +#define BASE_ATTR_LIST(name) (&f2fs_base_attr_##name.attr) +static struct attribute *f2fs_feat_attrs[] = { +#ifdef CONFIG_FS_ENCRYPTION + BASE_ATTR_LIST(encryption), + BASE_ATTR_LIST(test_dummy_encryption_v2), +#if IS_ENABLED(CONFIG_UNICODE) + BASE_ATTR_LIST(encrypted_casefold), +#endif +#endif /* CONFIG_FS_ENCRYPTION */ +#ifdef CONFIG_BLK_DEV_ZONED + BASE_ATTR_LIST(block_zoned), +#endif + BASE_ATTR_LIST(atomic_write), + BASE_ATTR_LIST(extra_attr), + BASE_ATTR_LIST(project_quota), + BASE_ATTR_LIST(inode_checksum), + BASE_ATTR_LIST(flexible_inline_xattr), + BASE_ATTR_LIST(quota_ino), + BASE_ATTR_LIST(inode_crtime), + BASE_ATTR_LIST(lost_found), +#ifdef CONFIG_FS_VERITY + BASE_ATTR_LIST(verity), +#endif + BASE_ATTR_LIST(sb_checksum), +#if IS_ENABLED(CONFIG_UNICODE) + BASE_ATTR_LIST(casefold), +#endif + BASE_ATTR_LIST(readonly), +#ifdef CONFIG_F2FS_FS_COMPRESSION + BASE_ATTR_LIST(compression), +#endif + BASE_ATTR_LIST(pin_file), +#ifdef CONFIG_UNICODE + BASE_ATTR_LIST(linear_lookup), +#endif + BASE_ATTR_LIST(packed_ssa), + NULL, +}; +ATTRIBUTE_GROUPS(f2fs_feat); + +F2FS_GENERAL_RO_ATTR(sb_status); +F2FS_GENERAL_RO_ATTR(cp_status); +F2FS_GENERAL_RO_ATTR(issued_discard); +F2FS_GENERAL_RO_ATTR(queued_discard); +F2FS_GENERAL_RO_ATTR(undiscard_blks); + +static struct attribute *f2fs_stat_attrs[] = { + ATTR_LIST(sb_status), + ATTR_LIST(cp_status), + ATTR_LIST(issued_discard), + ATTR_LIST(queued_discard), + ATTR_LIST(undiscard_blks), + NULL, +}; +ATTRIBUTE_GROUPS(f2fs_stat); + +F2FS_SB_FEATURE_RO_ATTR(encryption, ENCRYPT); +F2FS_SB_FEATURE_RO_ATTR(block_zoned, BLKZONED); +F2FS_SB_FEATURE_RO_ATTR(extra_attr, EXTRA_ATTR); +F2FS_SB_FEATURE_RO_ATTR(project_quota, PRJQUOTA); +F2FS_SB_FEATURE_RO_ATTR(inode_checksum, INODE_CHKSUM); +F2FS_SB_FEATURE_RO_ATTR(flexible_inline_xattr, FLEXIBLE_INLINE_XATTR); +F2FS_SB_FEATURE_RO_ATTR(quota_ino, QUOTA_INO); +F2FS_SB_FEATURE_RO_ATTR(inode_crtime, INODE_CRTIME); +F2FS_SB_FEATURE_RO_ATTR(lost_found, LOST_FOUND); +F2FS_SB_FEATURE_RO_ATTR(verity, VERITY); +F2FS_SB_FEATURE_RO_ATTR(sb_checksum, SB_CHKSUM); +F2FS_SB_FEATURE_RO_ATTR(casefold, CASEFOLD); +F2FS_SB_FEATURE_RO_ATTR(compression, COMPRESSION); +F2FS_SB_FEATURE_RO_ATTR(readonly, RO); +F2FS_SB_FEATURE_RO_ATTR(device_alias, DEVICE_ALIAS); +F2FS_SB_FEATURE_RO_ATTR(packed_ssa, PACKED_SSA); + +static struct attribute *f2fs_sb_feat_attrs[] = { + ATTR_LIST(sb_encryption), + ATTR_LIST(sb_block_zoned), + ATTR_LIST(sb_extra_attr), + ATTR_LIST(sb_project_quota), + ATTR_LIST(sb_inode_checksum), + ATTR_LIST(sb_flexible_inline_xattr), + ATTR_LIST(sb_quota_ino), + ATTR_LIST(sb_inode_crtime), + ATTR_LIST(sb_lost_found), + ATTR_LIST(sb_verity), + ATTR_LIST(sb_sb_checksum), + ATTR_LIST(sb_casefold), + ATTR_LIST(sb_compression), + ATTR_LIST(sb_readonly), + ATTR_LIST(sb_device_alias), + ATTR_LIST(sb_packed_ssa), NULL, }; +ATTRIBUTE_GROUPS(f2fs_sb_feat); + +F2FS_TUNE_RW_ATTR(reclaim_caches_kb); + +static struct attribute *f2fs_tune_attrs[] = { + BASE_ATTR_LIST(reclaim_caches_kb), + NULL, +}; +ATTRIBUTE_GROUPS(f2fs_tune); static const struct sysfs_ops f2fs_attr_ops = { .show = f2fs_attr_show, .store = f2fs_attr_store, }; -static struct kobj_type f2fs_ktype = { - .default_attrs = f2fs_attrs, +static const struct kobj_type f2fs_sb_ktype = { + .default_groups = f2fs_groups, .sysfs_ops = &f2fs_attr_ops, .release = f2fs_sb_release, }; -static int segment_info_seq_show(struct seq_file *seq, void *offset) +static const struct kobj_type f2fs_ktype = { + .sysfs_ops = &f2fs_attr_ops, +}; + +static struct kset f2fs_kset = { + .kobj = {.ktype = &f2fs_ktype}, +}; + +static const struct sysfs_ops f2fs_feat_attr_ops = { + .show = f2fs_base_attr_show, + .store = f2fs_base_attr_store, +}; + +static const struct kobj_type f2fs_feat_ktype = { + .default_groups = f2fs_feat_groups, + .sysfs_ops = &f2fs_feat_attr_ops, +}; + +static struct kobject f2fs_feat = { + .kset = &f2fs_kset, +}; + +static const struct sysfs_ops f2fs_tune_attr_ops = { + .show = f2fs_base_attr_show, + .store = f2fs_base_attr_store, +}; + +static const struct kobj_type f2fs_tune_ktype = { + .default_groups = f2fs_tune_groups, + .sysfs_ops = &f2fs_tune_attr_ops, +}; + +static struct kobject f2fs_tune = { + .kset = &f2fs_kset, +}; + +static ssize_t f2fs_stat_attr_show(struct kobject *kobj, + struct attribute *attr, char *buf) +{ + struct f2fs_sb_info *sbi = container_of(kobj, struct f2fs_sb_info, + s_stat_kobj); + struct f2fs_attr *a = container_of(attr, struct f2fs_attr, attr); + + return a->show ? a->show(a, sbi, buf) : 0; +} + +static ssize_t f2fs_stat_attr_store(struct kobject *kobj, struct attribute *attr, + const char *buf, size_t len) +{ + struct f2fs_sb_info *sbi = container_of(kobj, struct f2fs_sb_info, + s_stat_kobj); + struct f2fs_attr *a = container_of(attr, struct f2fs_attr, attr); + + return a->store ? a->store(a, sbi, buf, len) : 0; +} + +static void f2fs_stat_kobj_release(struct kobject *kobj) +{ + struct f2fs_sb_info *sbi = container_of(kobj, struct f2fs_sb_info, + s_stat_kobj); + complete(&sbi->s_stat_kobj_unregister); +} + +static const struct sysfs_ops f2fs_stat_attr_ops = { + .show = f2fs_stat_attr_show, + .store = f2fs_stat_attr_store, +}; + +static const struct kobj_type f2fs_stat_ktype = { + .default_groups = f2fs_stat_groups, + .sysfs_ops = &f2fs_stat_attr_ops, + .release = f2fs_stat_kobj_release, +}; + +static ssize_t f2fs_sb_feat_attr_show(struct kobject *kobj, + struct attribute *attr, char *buf) +{ + struct f2fs_sb_info *sbi = container_of(kobj, struct f2fs_sb_info, + s_feature_list_kobj); + struct f2fs_attr *a = container_of(attr, struct f2fs_attr, attr); + + return a->show ? a->show(a, sbi, buf) : 0; +} + +static void f2fs_feature_list_kobj_release(struct kobject *kobj) +{ + struct f2fs_sb_info *sbi = container_of(kobj, struct f2fs_sb_info, + s_feature_list_kobj); + complete(&sbi->s_feature_list_kobj_unregister); +} + +static const struct sysfs_ops f2fs_feature_list_attr_ops = { + .show = f2fs_sb_feat_attr_show, +}; + +static const struct kobj_type f2fs_feature_list_ktype = { + .default_groups = f2fs_sb_feat_groups, + .sysfs_ops = &f2fs_feature_list_attr_ops, + .release = f2fs_feature_list_kobj_release, +}; + +static int __maybe_unused segment_info_seq_show(struct seq_file *seq, + void *offset) { struct super_block *sb = seq->private; struct f2fs_sb_info *sbi = F2FS_SB(sb); @@ -253,8 +1657,7 @@ static int segment_info_seq_show(struct seq_file *seq, void *offset) if ((i % 10) == 0) seq_printf(seq, "%-10d", i); - seq_printf(seq, "%d|%-3u", se->type, - get_valid_blocks(sbi, i, false)); + seq_printf(seq, "%d|%-3u", se->type, se->valid_blocks); if ((i % 10) == 9 || i == (total_segs - 1)) seq_putc(seq, '\n'); else @@ -264,7 +1667,8 @@ static int segment_info_seq_show(struct seq_file *seq, void *offset) return 0; } -static int segment_bits_seq_show(struct seq_file *seq, void *offset) +static int __maybe_unused segment_bits_seq_show(struct seq_file *seq, + void *offset) { struct super_block *sb = seq->private; struct f2fs_sb_info *sbi = F2FS_SB(sb); @@ -272,94 +1676,329 @@ static int segment_bits_seq_show(struct seq_file *seq, void *offset) le32_to_cpu(sbi->raw_super->segment_count_main); int i, j; - seq_puts(seq, "format: segment_type|valid_blocks|bitmaps\n" + seq_puts(seq, "format: segment_type|valid_blocks|bitmaps|mtime\n" "segment_type(0:HD, 1:WD, 2:CD, 3:HN, 4:WN, 5:CN)\n"); for (i = 0; i < total_segs; i++) { struct seg_entry *se = get_seg_entry(sbi, i); seq_printf(seq, "%-10d", i); - seq_printf(seq, "%d|%-3u|", se->type, - get_valid_blocks(sbi, i, false)); + seq_printf(seq, "%d|%-3u|", se->type, se->valid_blocks); for (j = 0; j < SIT_VBLOCK_MAP_SIZE; j++) seq_printf(seq, " %.2x", se->cur_valid_map[j]); + seq_printf(seq, "| %llx", se->mtime); seq_putc(seq, '\n'); } return 0; } -#define F2FS_PROC_FILE_DEF(_name) \ -static int _name##_open_fs(struct inode *inode, struct file *file) \ -{ \ - return single_open(file, _name##_seq_show, PDE_DATA(inode)); \ -} \ - \ -static const struct file_operations f2fs_seq_##_name##_fops = { \ - .open = _name##_open_fs, \ - .read = seq_read, \ - .llseek = seq_lseek, \ - .release = single_release, \ -}; +static int __maybe_unused victim_bits_seq_show(struct seq_file *seq, + void *offset) +{ + struct super_block *sb = seq->private; + struct f2fs_sb_info *sbi = F2FS_SB(sb); + struct dirty_seglist_info *dirty_i = DIRTY_I(sbi); + int i; -F2FS_PROC_FILE_DEF(segment_info); -F2FS_PROC_FILE_DEF(segment_bits); + seq_puts(seq, "format: victim_secmap bitmaps\n"); -int __init f2fs_register_sysfs(void) + for (i = 0; i < MAIN_SECS(sbi); i++) { + if ((i % 10) == 0) + seq_printf(seq, "%-10d", i); + seq_printf(seq, "%d", test_bit(i, dirty_i->victim_secmap) ? 1 : 0); + if ((i % 10) == 9 || i == (MAIN_SECS(sbi) - 1)) + seq_putc(seq, '\n'); + else + seq_putc(seq, ' '); + } + return 0; +} + +static int __maybe_unused discard_plist_seq_show(struct seq_file *seq, + void *offset) +{ + struct super_block *sb = seq->private; + struct f2fs_sb_info *sbi = F2FS_SB(sb); + struct discard_cmd_control *dcc = SM_I(sbi)->dcc_info; + int i, count; + + seq_puts(seq, "Discard pend list(Show diacrd_cmd count on each entry, .:not exist):\n"); + if (!f2fs_realtime_discard_enable(sbi)) + return 0; + + if (dcc) { + mutex_lock(&dcc->cmd_lock); + for (i = 0; i < MAX_PLIST_NUM; i++) { + struct list_head *pend_list; + struct discard_cmd *dc, *tmp; + + if (i % 8 == 0) + seq_printf(seq, " %-3d", i); + count = 0; + pend_list = &dcc->pend_list[i]; + list_for_each_entry_safe(dc, tmp, pend_list, list) + count++; + if (count) + seq_printf(seq, " %7d", count); + else + seq_puts(seq, " ."); + if (i % 8 == 7) + seq_putc(seq, '\n'); + } + seq_putc(seq, '\n'); + mutex_unlock(&dcc->cmd_lock); + } + + return 0; +} + +static int __maybe_unused disk_map_seq_show(struct seq_file *seq, + void *offset) { + struct super_block *sb = seq->private; + struct f2fs_sb_info *sbi = F2FS_SB(sb); + int i; + + seq_printf(seq, "Address Layout : %5luB Block address (# of Segments)\n", + F2FS_BLKSIZE); + seq_printf(seq, " SB : %12s\n", "0/1024B"); + seq_printf(seq, " seg0_blkaddr : 0x%010x\n", SEG0_BLKADDR(sbi)); + seq_printf(seq, " Checkpoint : 0x%010x (%10d)\n", + le32_to_cpu(F2FS_RAW_SUPER(sbi)->cp_blkaddr), 2); + seq_printf(seq, " SIT : 0x%010x (%10d)\n", + SIT_I(sbi)->sit_base_addr, + le32_to_cpu(F2FS_RAW_SUPER(sbi)->segment_count_sit)); + seq_printf(seq, " NAT : 0x%010x (%10d)\n", + NM_I(sbi)->nat_blkaddr, + le32_to_cpu(F2FS_RAW_SUPER(sbi)->segment_count_nat)); + seq_printf(seq, " SSA : 0x%010x (%10d)\n", + SM_I(sbi)->ssa_blkaddr, + le32_to_cpu(F2FS_RAW_SUPER(sbi)->segment_count_ssa)); + seq_printf(seq, " Main : 0x%010x (%10d)\n", + SM_I(sbi)->main_blkaddr, + le32_to_cpu(F2FS_RAW_SUPER(sbi)->segment_count_main)); + seq_printf(seq, " Block size : %12lu KB\n", F2FS_BLKSIZE >> 10); + seq_printf(seq, " Segment size : %12d MB\n", + (BLKS_PER_SEG(sbi) << (F2FS_BLKSIZE_BITS - 10)) >> 10); + seq_printf(seq, " Segs/Sections : %12d\n", + SEGS_PER_SEC(sbi)); + seq_printf(seq, " Section size : %12d MB\n", + (BLKS_PER_SEC(sbi) << (F2FS_BLKSIZE_BITS - 10)) >> 10); + seq_printf(seq, " # of Sections : %12d\n", + le32_to_cpu(F2FS_RAW_SUPER(sbi)->section_count)); + + if (!f2fs_is_multi_device(sbi)) + return 0; + + seq_puts(seq, "\nDisk Map for multi devices:\n"); + for (i = 0; i < sbi->s_ndevs; i++) + seq_printf(seq, "Disk:%2d (zoned=%d): 0x%010x - 0x%010x on %s\n", + i, bdev_is_zoned(FDEV(i).bdev), + FDEV(i).start_blk, FDEV(i).end_blk, + FDEV(i).path); + return 0; +} + +static int __maybe_unused donation_list_seq_show(struct seq_file *seq, + void *offset) +{ + struct super_block *sb = seq->private; + struct f2fs_sb_info *sbi = F2FS_SB(sb); + struct inode *inode; + struct f2fs_inode_info *fi; + struct dentry *dentry; + char *buf, *path; + int i; + + buf = f2fs_getname(sbi); + if (!buf) + return 0; + + seq_printf(seq, "Donation List\n"); + seq_printf(seq, " # of files : %u\n", sbi->donate_files); + seq_printf(seq, " %-50s %10s %20s %20s %22s\n", + "File path", "Status", "Donation offset (kb)", + "Donation size (kb)", "File cached size (kb)"); + seq_printf(seq, "---\n"); + + for (i = 0; i < sbi->donate_files; i++) { + spin_lock(&sbi->inode_lock[DONATE_INODE]); + if (list_empty(&sbi->inode_list[DONATE_INODE])) { + spin_unlock(&sbi->inode_lock[DONATE_INODE]); + break; + } + fi = list_first_entry(&sbi->inode_list[DONATE_INODE], + struct f2fs_inode_info, gdonate_list); + list_move_tail(&fi->gdonate_list, &sbi->inode_list[DONATE_INODE]); + inode = igrab(&fi->vfs_inode); + spin_unlock(&sbi->inode_lock[DONATE_INODE]); + + if (!inode) + continue; + + inode_lock_shared(inode); + + dentry = d_find_alias(inode); + if (!dentry) { + path = NULL; + } else { + path = dentry_path_raw(dentry, buf, PATH_MAX); + if (IS_ERR(path)) + goto next; + } + seq_printf(seq, " %-50s %10s %20llu %20llu %22llu\n", + path ? path : "<unlinked>", + is_inode_flag_set(inode, FI_DONATE_FINISHED) ? + "Evicted" : "Donated", + (loff_t)fi->donate_start << (PAGE_SHIFT - 10), + (loff_t)(fi->donate_end + 1) << (PAGE_SHIFT - 10), + (loff_t)inode->i_mapping->nrpages << (PAGE_SHIFT - 10)); +next: + dput(dentry); + inode_unlock_shared(inode); + iput(inode); + } + f2fs_putname(buf); + return 0; +} + +#ifdef CONFIG_F2FS_FAULT_INJECTION +static int __maybe_unused inject_stats_seq_show(struct seq_file *seq, + void *offset) +{ + struct super_block *sb = seq->private; + struct f2fs_sb_info *sbi = F2FS_SB(sb); + struct f2fs_fault_info *ffi = &F2FS_OPTION(sbi).fault_info; + int i; + + seq_puts(seq, "fault_type injected_count\n"); + + for (i = 0; i < FAULT_MAX; i++) + seq_printf(seq, "%-24s%-10u\n", f2fs_fault_name[i], + ffi->inject_count[i]); + return 0; +} +#endif + +int __init f2fs_init_sysfs(void) +{ + int ret; + + kobject_set_name(&f2fs_kset.kobj, "f2fs"); + f2fs_kset.kobj.parent = fs_kobj; + ret = kset_register(&f2fs_kset); + if (ret) + return ret; + + ret = kobject_init_and_add(&f2fs_feat, &f2fs_feat_ktype, + NULL, "features"); + if (ret) + goto put_kobject; + + ret = kobject_init_and_add(&f2fs_tune, &f2fs_tune_ktype, + NULL, "tuning"); + if (ret) + goto put_kobject; + f2fs_proc_root = proc_mkdir("fs/f2fs", NULL); + if (!f2fs_proc_root) { + ret = -ENOMEM; + goto put_kobject; + } - f2fs_kset = kset_create_and_add("f2fs", NULL, fs_kobj); - if (!f2fs_kset) - return -ENOMEM; return 0; + +put_kobject: + kobject_put(&f2fs_tune); + kobject_put(&f2fs_feat); + kset_unregister(&f2fs_kset); + return ret; } -void f2fs_unregister_sysfs(void) +void f2fs_exit_sysfs(void) { - kset_unregister(f2fs_kset); + kobject_put(&f2fs_tune); + kobject_put(&f2fs_feat); + kset_unregister(&f2fs_kset); remove_proc_entry("fs/f2fs", NULL); + f2fs_proc_root = NULL; } -int f2fs_init_sysfs(struct f2fs_sb_info *sbi) +int f2fs_register_sysfs(struct f2fs_sb_info *sbi) { struct super_block *sb = sbi->sb; int err; - if (f2fs_proc_root) - sbi->s_proc = proc_mkdir(sb->s_id, f2fs_proc_root); + sbi->s_kobj.kset = &f2fs_kset; + init_completion(&sbi->s_kobj_unregister); + err = kobject_init_and_add(&sbi->s_kobj, &f2fs_sb_ktype, NULL, + "%s", sb->s_id); + if (err) + goto put_sb_kobj; - if (sbi->s_proc) { - proc_create_data("segment_info", S_IRUGO, sbi->s_proc, - &f2fs_seq_segment_info_fops, sb); - proc_create_data("segment_bits", S_IRUGO, sbi->s_proc, - &f2fs_seq_segment_bits_fops, sb); - } + sbi->s_stat_kobj.kset = &f2fs_kset; + init_completion(&sbi->s_stat_kobj_unregister); + err = kobject_init_and_add(&sbi->s_stat_kobj, &f2fs_stat_ktype, + &sbi->s_kobj, "stat"); + if (err) + goto put_stat_kobj; - sbi->s_kobj.kset = f2fs_kset; - init_completion(&sbi->s_kobj_unregister); - err = kobject_init_and_add(&sbi->s_kobj, &f2fs_ktype, NULL, - "%s", sb->s_id); + sbi->s_feature_list_kobj.kset = &f2fs_kset; + init_completion(&sbi->s_feature_list_kobj_unregister); + err = kobject_init_and_add(&sbi->s_feature_list_kobj, + &f2fs_feature_list_ktype, + &sbi->s_kobj, "feature_list"); if (err) - goto err_out; - return 0; -err_out: - if (sbi->s_proc) { - remove_proc_entry("segment_info", sbi->s_proc); - remove_proc_entry("segment_bits", sbi->s_proc); - remove_proc_entry(sb->s_id, f2fs_proc_root); + goto put_feature_list_kobj; + + sbi->s_proc = proc_mkdir(sb->s_id, f2fs_proc_root); + if (!sbi->s_proc) { + err = -ENOMEM; + goto put_feature_list_kobj; } + + proc_create_single_data("segment_info", 0444, sbi->s_proc, + segment_info_seq_show, sb); + proc_create_single_data("segment_bits", 0444, sbi->s_proc, + segment_bits_seq_show, sb); +#ifdef CONFIG_F2FS_IOSTAT + proc_create_single_data("iostat_info", 0444, sbi->s_proc, + iostat_info_seq_show, sb); +#endif + proc_create_single_data("victim_bits", 0444, sbi->s_proc, + victim_bits_seq_show, sb); + proc_create_single_data("discard_plist_info", 0444, sbi->s_proc, + discard_plist_seq_show, sb); + proc_create_single_data("disk_map", 0444, sbi->s_proc, + disk_map_seq_show, sb); + proc_create_single_data("donation_list", 0444, sbi->s_proc, + donation_list_seq_show, sb); +#ifdef CONFIG_F2FS_FAULT_INJECTION + proc_create_single_data("inject_stats", 0444, sbi->s_proc, + inject_stats_seq_show, sb); +#endif + return 0; +put_feature_list_kobj: + kobject_put(&sbi->s_feature_list_kobj); + wait_for_completion(&sbi->s_feature_list_kobj_unregister); +put_stat_kobj: + kobject_put(&sbi->s_stat_kobj); + wait_for_completion(&sbi->s_stat_kobj_unregister); +put_sb_kobj: + kobject_put(&sbi->s_kobj); + wait_for_completion(&sbi->s_kobj_unregister); return err; } -void f2fs_exit_sysfs(struct f2fs_sb_info *sbi) +void f2fs_unregister_sysfs(struct f2fs_sb_info *sbi) { - kobject_del(&sbi->s_kobj); + remove_proc_subtree(sbi->sb->s_id, f2fs_proc_root); + + kobject_put(&sbi->s_stat_kobj); + wait_for_completion(&sbi->s_stat_kobj_unregister); + kobject_put(&sbi->s_feature_list_kobj); + wait_for_completion(&sbi->s_feature_list_kobj_unregister); + kobject_put(&sbi->s_kobj); wait_for_completion(&sbi->s_kobj_unregister); - - if (sbi->s_proc) { - remove_proc_entry("segment_info", sbi->s_proc); - remove_proc_entry("segment_bits", sbi->s_proc); - remove_proc_entry(sbi->sb->s_id, f2fs_proc_root); - } } |