diff options
Diffstat (limited to 'fs/hfsplus/hfsplus_fs.h')
| -rw-r--r-- | fs/hfsplus/hfsplus_fs.h | 155 |
1 files changed, 97 insertions, 58 deletions
diff --git a/fs/hfsplus/hfsplus_fs.h b/fs/hfsplus/hfsplus_fs.h index 6aa919e59483..45fe3a12ecba 100644 --- a/fs/hfsplus/hfsplus_fs.h +++ b/fs/hfsplus/hfsplus_fs.h @@ -11,46 +11,13 @@ #ifndef _LINUX_HFSPLUS_FS_H #define _LINUX_HFSPLUS_FS_H -#ifdef pr_fmt -#undef pr_fmt -#endif - -#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt - #include <linux/fs.h> #include <linux/mutex.h> #include <linux/buffer_head.h> #include <linux/blkdev.h> +#include <linux/fs_context.h> #include "hfsplus_raw.h" -#define DBG_BNODE_REFS 0x00000001 -#define DBG_BNODE_MOD 0x00000002 -#define DBG_CAT_MOD 0x00000004 -#define DBG_INODE 0x00000008 -#define DBG_SUPER 0x00000010 -#define DBG_EXTENT 0x00000020 -#define DBG_BITMAP 0x00000040 -#define DBG_ATTR_MOD 0x00000080 - -#if 0 -#define DBG_MASK (DBG_EXTENT|DBG_INODE|DBG_BNODE_MOD) -#define DBG_MASK (DBG_BNODE_MOD|DBG_CAT_MOD|DBG_INODE) -#define DBG_MASK (DBG_CAT_MOD|DBG_BNODE_REFS|DBG_INODE|DBG_EXTENT) -#endif -#define DBG_MASK (0) - -#define hfs_dbg(flg, fmt, ...) \ -do { \ - if (DBG_##flg & DBG_MASK) \ - printk(KERN_DEBUG pr_fmt(fmt), ##__VA_ARGS__); \ -} while (0) - -#define hfs_dbg_cont(flg, fmt, ...) \ -do { \ - if (DBG_##flg & DBG_MASK) \ - pr_cont(fmt, ##__VA_ARGS__); \ -} while (0) - /* Runtime config options */ #define HFSPLUS_DEF_CR_TYPE 0x3F3F3F3F /* '????' */ @@ -156,6 +123,7 @@ struct hfsplus_sb_info { /* Runtime variables */ u32 blockoffset; + u32 min_io_size; sector_t part_start; sector_t sect_count; int fs_shift; @@ -190,6 +158,7 @@ struct hfsplus_sb_info { int work_queued; /* non-zero delayed work is queued */ struct delayed_work sync_work; /* FS sync delayed work */ spinlock_t work_lock; /* protects sync_work and work_queued */ + struct rcu_head rcu; }; #define HFSPLUS_SB_WRITEBACKUP 0 @@ -306,7 +275,7 @@ struct hfsplus_readdir_data { */ static inline unsigned short hfsplus_min_io_size(struct super_block *sb) { - return max_t(unsigned short, bdev_logical_block_size(sb->s_bdev), + return max_t(unsigned short, HFSPLUS_SB(sb)->min_io_size, HFSPLUS_SECTOR_SIZE); } @@ -387,21 +356,21 @@ u32 hfsplus_calc_btree_clump_size(u32 block_size, u32 node_size, u64 sectors, struct hfs_btree *hfs_btree_open(struct super_block *sb, u32 id); void hfs_btree_close(struct hfs_btree *tree); int hfs_btree_write(struct hfs_btree *tree); -int hfs_bmap_reserve(struct hfs_btree *tree, int rsvd_nodes); +int hfs_bmap_reserve(struct hfs_btree *tree, u32 rsvd_nodes); struct hfs_bnode *hfs_bmap_alloc(struct hfs_btree *tree); void hfs_bmap_free(struct hfs_bnode *node); /* bnode.c */ -void hfs_bnode_read(struct hfs_bnode *node, void *buf, int off, int len); -u16 hfs_bnode_read_u16(struct hfs_bnode *node, int off); -u8 hfs_bnode_read_u8(struct hfs_bnode *node, int off); -void hfs_bnode_read_key(struct hfs_bnode *node, void *key, int off); -void hfs_bnode_write(struct hfs_bnode *node, void *buf, int off, int len); -void hfs_bnode_write_u16(struct hfs_bnode *node, int off, u16 data); -void hfs_bnode_clear(struct hfs_bnode *node, int off, int len); -void hfs_bnode_copy(struct hfs_bnode *dst_node, int dst, - struct hfs_bnode *src_node, int src, int len); -void hfs_bnode_move(struct hfs_bnode *node, int dst, int src, int len); +void hfs_bnode_read(struct hfs_bnode *node, void *buf, u32 off, u32 len); +u16 hfs_bnode_read_u16(struct hfs_bnode *node, u32 off); +u8 hfs_bnode_read_u8(struct hfs_bnode *node, u32 off); +void hfs_bnode_read_key(struct hfs_bnode *node, void *key, u32 off); +void hfs_bnode_write(struct hfs_bnode *node, void *buf, u32 off, u32 len); +void hfs_bnode_write_u16(struct hfs_bnode *node, u32 off, u16 data); +void hfs_bnode_clear(struct hfs_bnode *node, u32 off, u32 len); +void hfs_bnode_copy(struct hfs_bnode *dst_node, u32 dst, + struct hfs_bnode *src_node, u32 src, u32 len); +void hfs_bnode_move(struct hfs_bnode *node, u32 dst, u32 src, u32 len); void hfs_bnode_dump(struct hfs_bnode *node); void hfs_bnode_unlink(struct hfs_bnode *node); struct hfs_bnode *hfs_bnode_findhash(struct hfs_btree *tree, u32 cnid); @@ -416,7 +385,7 @@ bool hfs_bnode_need_zeroout(struct hfs_btree *tree); /* brec.c */ u16 hfs_brec_lenoff(struct hfs_bnode *node, u16 rec, u16 *off); u16 hfs_brec_keylen(struct hfs_bnode *node, u16 rec); -int hfs_brec_insert(struct hfs_find_data *fd, void *entry, int entry_len); +int hfs_brec_insert(struct hfs_find_data *fd, void *entry, u32 entry_len); int hfs_brec_remove(struct hfs_find_data *fd); /* bfind.c */ @@ -429,7 +398,7 @@ int hfs_find_rec_by_key(struct hfs_bnode *bnode, struct hfs_find_data *fd, int __hfs_brec_find(struct hfs_bnode *bnode, struct hfs_find_data *fd, search_strategy_t rec_found); int hfs_brec_find(struct hfs_find_data *fd, search_strategy_t do_key_compare); -int hfs_brec_read(struct hfs_find_data *fd, void *rec, int rec_len); +int hfs_brec_read(struct hfs_find_data *fd, void *rec, u32 rec_len); int hfs_brec_goto(struct hfs_find_data *fd, int cnt); /* catalog.c */ @@ -470,8 +439,10 @@ extern const struct address_space_operations hfsplus_aops; extern const struct address_space_operations hfsplus_btree_aops; extern const struct dentry_operations hfsplus_dentry_operations; -int hfsplus_write_begin(struct file *file, struct address_space *mapping, - loff_t pos, unsigned len, struct page **pagep, void **fsdata); +int hfsplus_write_begin(const struct kiocb *iocb, + struct address_space *mapping, + loff_t pos, unsigned len, struct folio **foliop, + void **fsdata); struct inode *hfsplus_new_inode(struct super_block *sb, struct inode *dir, umode_t mode); void hfsplus_delete_inode(struct inode *inode); @@ -481,22 +452,21 @@ void hfsplus_inode_write_fork(struct inode *inode, struct hfsplus_fork_raw *fork); int hfsplus_cat_read_inode(struct inode *inode, struct hfs_find_data *fd); int hfsplus_cat_write_inode(struct inode *inode); -int hfsplus_getattr(struct user_namespace *mnt_userns, const struct path *path, +int hfsplus_getattr(struct mnt_idmap *idmap, const struct path *path, struct kstat *stat, u32 request_mask, unsigned int query_flags); int hfsplus_file_fsync(struct file *file, loff_t start, loff_t end, int datasync); -int hfsplus_fileattr_get(struct dentry *dentry, struct fileattr *fa); -int hfsplus_fileattr_set(struct user_namespace *mnt_userns, - struct dentry *dentry, struct fileattr *fa); +int hfsplus_fileattr_get(struct dentry *dentry, struct file_kattr *fa); +int hfsplus_fileattr_set(struct mnt_idmap *idmap, + struct dentry *dentry, struct file_kattr *fa); /* ioctl.c */ long hfsplus_ioctl(struct file *filp, unsigned int cmd, unsigned long arg); /* options.c */ void hfsplus_fill_defaults(struct hfsplus_sb_info *opts); -int hfsplus_parse_options_remount(char *input, int *force); -int hfsplus_parse_options(char *input, struct hfsplus_sb_info *sbi); +int hfsplus_parse_param(struct fs_context *fc, struct fs_parameter *param); int hfsplus_show_options(struct seq_file *seq, struct dentry *root); /* part_tbl.c */ @@ -506,6 +476,8 @@ int hfs_part_find(struct super_block *sb, sector_t *part_start, /* super.c */ struct inode *hfsplus_iget(struct super_block *sb, unsigned long ino); void hfsplus_mark_mdb_dirty(struct super_block *sb); +void hfsplus_prepare_volume_header_for_commit(struct hfsplus_vh *vhdr); +int hfsplus_commit_superblock(struct super_block *sb); /* tables.c */ extern u16 hfsplus_case_fold_table[]; @@ -517,8 +489,12 @@ int hfsplus_strcasecmp(const struct hfsplus_unistr *s1, const struct hfsplus_unistr *s2); int hfsplus_strcmp(const struct hfsplus_unistr *s1, const struct hfsplus_unistr *s2); -int hfsplus_uni2asc(struct super_block *sb, const struct hfsplus_unistr *ustr, - char *astr, int *len_p); +int hfsplus_uni2asc_str(struct super_block *sb, + const struct hfsplus_unistr *ustr, char *astr, + int *len_p); +int hfsplus_uni2asc_xattr_str(struct super_block *sb, + const struct hfsplus_attr_unistr *ustr, + char *astr, int *len_p); int hfsplus_asc2uni(struct super_block *sb, struct hfsplus_unistr *ustr, int max_unistr_len, const char *astr, int len); int hfsplus_hash_dentry(const struct dentry *dentry, struct qstr *str); @@ -552,6 +528,69 @@ static inline __be32 __hfsp_ut2mt(time64_t ut) return cpu_to_be32(lower_32_bits(ut) + HFSPLUS_UTC_OFFSET); } +static inline enum hfsplus_btree_mutex_classes +hfsplus_btree_lock_class(struct hfs_btree *tree) +{ + enum hfsplus_btree_mutex_classes class; + + switch (tree->cnid) { + case HFSPLUS_CAT_CNID: + class = CATALOG_BTREE_MUTEX; + break; + case HFSPLUS_EXT_CNID: + class = EXTENTS_BTREE_MUTEX; + break; + case HFSPLUS_ATTR_CNID: + class = ATTR_BTREE_MUTEX; + break; + default: + BUG(); + } + return class; +} + +static inline +bool is_bnode_offset_valid(struct hfs_bnode *node, u32 off) +{ + bool is_valid = off < node->tree->node_size; + + if (!is_valid) { + pr_err("requested invalid offset: " + "NODE: id %u, type %#x, height %u, " + "node_size %u, offset %u\n", + node->this, node->type, node->height, + node->tree->node_size, off); + } + + return is_valid; +} + +static inline +u32 check_and_correct_requested_length(struct hfs_bnode *node, u32 off, u32 len) +{ + unsigned int node_size; + + if (!is_bnode_offset_valid(node, off)) + return 0; + + node_size = node->tree->node_size; + + if ((off + len) > node_size) { + u32 new_len = node_size - off; + + pr_err("requested length has been corrected: " + "NODE: id %u, type %#x, height %u, " + "node_size %u, offset %u, " + "requested_len %u, corrected_len %u\n", + node->this, node->type, node->height, + node->tree->node_size, off, len, new_len); + + return new_len; + } + + return len; +} + /* compatibility */ #define hfsp_mt2ut(t) (struct timespec64){ .tv_sec = __hfsp_mt2ut(t) } #define hfsp_ut2mt(t) __hfsp_ut2mt((t).tv_sec) |