#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 /* '????' */
#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
unsigned int max_key_len;
unsigned int depth;
- //unsigned int map1_size, map_size;
struct mutex tree_lock;
unsigned int pages_per_bnode;
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;
/* Runtime variables */
u32 blockoffset;
- u32 sect_count;
+ sector_t part_start;
+ sector_t sect_count;
int fs_shift;
/* immutable data from the volume header */
#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 {
u32 cached_blocks;
hfsplus_extent_rec first_extents;
hfsplus_extent_rec cached_extents;
- unsigned long flags;
+ unsigned int extent_state;
struct mutex extents_lock;
/*
*/
u32 linkid;
+ /*
+ * Accessed using atomic bitops.
+ */
+ unsigned long flags;
+
/*
* Protected by i_mutex.
*/
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 */
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 *);
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 *);
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);
/* 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 *);
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)
projects / mv-sheeva.git / blobdiff