diff options
Diffstat (limited to 'fs/hfsplus/hfsplus_fs.h')
| -rw-r--r-- | fs/hfsplus/hfsplus_fs.h | 130 |
1 files changed, 77 insertions, 53 deletions
diff --git a/fs/hfsplus/hfsplus_fs.h b/fs/hfsplus/hfsplus_fs.h index cb3653efb57a..d6857523336d 100644 --- a/fs/hfsplus/hfsplus_fs.h +++ b/fs/hfsplus/hfsplus_fs.h @@ -23,13 +23,16 @@ #define DBG_EXTENT 0x00000020 #define DBG_BITMAP 0x00000040 -//#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) +#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 dprint(flg, fmt, args...) \ - if (flg & DBG_MASK) printk(fmt , ## args) + if (flg & DBG_MASK) \ + printk(fmt , ## args) /* Runtime config options */ #define HFSPLUS_DEF_CR_TYPE 0x3F3F3F3F /* '????' */ @@ -37,7 +40,8 @@ #define HFSPLUS_TYPE_DATA 0x00 #define HFSPLUS_TYPE_RSRC 0xFF -typedef int (*btree_keycmp)(const hfsplus_btree_key *, const hfsplus_btree_key *); +typedef int (*btree_keycmp)(const hfsplus_btree_key *, + const hfsplus_btree_key *); #define NODE_HASH_SIZE 256 @@ -61,7 +65,6 @@ struct hfs_btree { unsigned int max_key_len; unsigned int depth; - //unsigned int map1_size, map_size; struct mutex tree_lock; unsigned int pages_per_bnode; @@ -107,8 +110,8 @@ struct hfsplus_vh; struct hfs_btree; struct hfsplus_sb_info { - struct buffer_head *s_vhbh; struct hfsplus_vh *s_vhdr; + struct hfsplus_vh *s_backup_vhdr; struct hfs_btree *ext_tree; struct hfs_btree *cat_tree; struct hfs_btree *attr_tree; @@ -118,7 +121,8 @@ struct hfsplus_sb_info { /* Runtime variables */ u32 blockoffset; - u32 sect_count; + sector_t part_start; + sector_t sect_count; int fs_shift; /* immutable data from the volume header */ @@ -155,6 +159,12 @@ struct hfsplus_sb_info { #define HFSPLUS_SB_FORCE 2 #define HFSPLUS_SB_HFSX 3 #define HFSPLUS_SB_CASEFOLD 4 +#define HFSPLUS_SB_NOBARRIER 5 + +static inline struct hfsplus_sb_info *HFSPLUS_SB(struct super_block *sb) +{ + return sb->s_fs_info; +} struct hfsplus_inode_info { @@ -170,7 +180,7 @@ struct hfsplus_inode_info { u32 cached_blocks; hfsplus_extent_rec first_extents; hfsplus_extent_rec cached_extents; - unsigned long flags; + unsigned int extent_state; struct mutex extents_lock; /* @@ -185,6 +195,11 @@ struct hfsplus_inode_info { u32 linkid; /* + * Accessed using atomic bitops. + */ + unsigned long flags; + + /* * Protected by i_mutex. */ sector_t fs_blocks; @@ -195,12 +210,34 @@ struct hfsplus_inode_info { struct inode vfs_inode; }; -#define HFSPLUS_FLG_RSRC 0x0001 -#define HFSPLUS_FLG_EXT_DIRTY 0x0002 -#define HFSPLUS_FLG_EXT_NEW 0x0004 +#define HFSPLUS_EXT_DIRTY 0x0001 +#define HFSPLUS_EXT_NEW 0x0002 + +#define HFSPLUS_I_RSRC 0 /* represents a resource fork */ +#define HFSPLUS_I_CAT_DIRTY 1 /* has changes in the catalog tree */ +#define HFSPLUS_I_EXT_DIRTY 2 /* has changes in the extent tree */ +#define HFSPLUS_I_ALLOC_DIRTY 3 /* has changes in the allocation file */ + +#define HFSPLUS_IS_RSRC(inode) \ + test_bit(HFSPLUS_I_RSRC, &HFSPLUS_I(inode)->flags) + +static inline struct hfsplus_inode_info *HFSPLUS_I(struct inode *inode) +{ + return list_entry(inode, struct hfsplus_inode_info, vfs_inode); +} -#define HFSPLUS_IS_DATA(inode) (!(HFSPLUS_I(inode)->flags & HFSPLUS_FLG_RSRC)) -#define HFSPLUS_IS_RSRC(inode) (HFSPLUS_I(inode)->flags & HFSPLUS_FLG_RSRC) +/* + * Mark an inode dirty, and also mark the btree in which the + * specific type of metadata is stored. + * For data or metadata that gets written back by into the catalog btree + * by hfsplus_write_inode a plain mark_inode_dirty call is enough. + */ +static inline void hfsplus_mark_inode_dirty(struct inode *inode, + unsigned int flag) +{ + set_bit(flag, &HFSPLUS_I(inode)->flags); + mark_inode_dirty(inode); +} struct hfs_find_data { /* filled by caller */ @@ -318,9 +355,12 @@ int hfs_brec_read(struct hfs_find_data *, void *, int); int hfs_brec_goto(struct hfs_find_data *, int); /* catalog.c */ -int hfsplus_cat_case_cmp_key(const hfsplus_btree_key *, const hfsplus_btree_key *); -int hfsplus_cat_bin_cmp_key(const hfsplus_btree_key *, const hfsplus_btree_key *); -void hfsplus_cat_build_key(struct super_block *sb, hfsplus_btree_key *, u32, struct qstr *); +int hfsplus_cat_case_cmp_key(const hfsplus_btree_key *, + const hfsplus_btree_key *); +int hfsplus_cat_bin_cmp_key(const hfsplus_btree_key *, + const hfsplus_btree_key *); +void hfsplus_cat_build_key(struct super_block *sb, + hfsplus_btree_key *, u32, struct qstr *); int hfsplus_find_cat(struct super_block *, u32, struct hfs_find_data *); int hfsplus_create_cat(u32, struct inode *, struct qstr *, struct inode *); int hfsplus_delete_cat(u32, struct inode *, struct qstr *); @@ -336,7 +376,8 @@ extern const struct file_operations hfsplus_dir_operations; int hfsplus_ext_cmp_key(const hfsplus_btree_key *, const hfsplus_btree_key *); void hfsplus_ext_write_extent(struct inode *); int hfsplus_get_block(struct inode *, sector_t, struct buffer_head *, int); -int hfsplus_free_fork(struct super_block *, u32, struct hfsplus_fork_raw *, int); +int hfsplus_free_fork(struct super_block *, u32, + struct hfsplus_fork_raw *, int); int hfsplus_file_extend(struct inode *); void hfsplus_file_truncate(struct inode *); @@ -351,6 +392,7 @@ int hfsplus_cat_read_inode(struct inode *, struct hfs_find_data *); int hfsplus_cat_write_inode(struct inode *); struct inode *hfsplus_new_inode(struct super_block *, int); void hfsplus_delete_inode(struct inode *); +int hfsplus_file_fsync(struct file *file, int datasync); /* ioctl.c */ long hfsplus_ioctl(struct file *filp, unsigned int cmd, unsigned long arg); @@ -362,6 +404,7 @@ ssize_t hfsplus_listxattr(struct dentry *dentry, char *buffer, size_t size); /* options.c */ int hfsplus_parse_options(char *, struct hfsplus_sb_info *); +int hfsplus_parse_options_remount(char *input, int *force); void hfsplus_fill_defaults(struct hfsplus_sb_info *); int hfsplus_show_options(struct seq_file *, struct vfsmount *); @@ -375,45 +418,26 @@ extern u16 hfsplus_decompose_table[]; extern u16 hfsplus_compose_table[]; /* unicode.c */ -int hfsplus_strcasecmp(const struct hfsplus_unistr *, const struct hfsplus_unistr *); -int hfsplus_strcmp(const struct hfsplus_unistr *, const struct hfsplus_unistr *); -int hfsplus_uni2asc(struct super_block *, const struct hfsplus_unistr *, char *, int *); -int hfsplus_asc2uni(struct super_block *, struct hfsplus_unistr *, const char *, int); -int hfsplus_hash_dentry(struct dentry *dentry, struct qstr *str); -int hfsplus_compare_dentry(struct dentry *dentry, struct qstr *s1, struct qstr *s2); +int hfsplus_strcasecmp(const struct hfsplus_unistr *, + const struct hfsplus_unistr *); +int hfsplus_strcmp(const struct hfsplus_unistr *, + const struct hfsplus_unistr *); +int hfsplus_uni2asc(struct super_block *, + const struct hfsplus_unistr *, char *, int *); +int hfsplus_asc2uni(struct super_block *, + struct hfsplus_unistr *, const char *, int); +int hfsplus_hash_dentry(const struct dentry *dentry, + const struct inode *inode, struct qstr *str); +int hfsplus_compare_dentry(const struct dentry *parent, + const struct inode *pinode, + const struct dentry *dentry, const struct inode *inode, + unsigned int len, const char *str, const struct qstr *name); /* wrapper.c */ int hfsplus_read_wrapper(struct super_block *); - int hfs_part_find(struct super_block *, sector_t *, sector_t *); - -/* access macros */ -static inline struct hfsplus_sb_info *HFSPLUS_SB(struct super_block *sb) -{ - return sb->s_fs_info; -} - -static inline struct hfsplus_inode_info *HFSPLUS_I(struct inode *inode) -{ - return list_entry(inode, struct hfsplus_inode_info, vfs_inode); -} - -#define sb_bread512(sb, sec, data) ({ \ - struct buffer_head *__bh; \ - sector_t __block; \ - loff_t __start; \ - int __offset; \ - \ - __start = (loff_t)(sec) << HFSPLUS_SECTOR_SHIFT;\ - __block = __start >> (sb)->s_blocksize_bits; \ - __offset = __start & ((sb)->s_blocksize - 1); \ - __bh = sb_bread((sb), __block); \ - if (likely(__bh != NULL)) \ - data = (void *)(__bh->b_data + __offset);\ - else \ - data = NULL; \ - __bh; \ -}) +int hfsplus_submit_bio(struct block_device *bdev, sector_t sector, + void *data, int rw); /* time macros */ #define __hfsp_mt2ut(t) (be32_to_cpu(t) - 2082844800U) |