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Diffstat (limited to 'fs/hfsplus/hfsplus_fs.h')
-rw-r--r--fs/hfsplus/hfsplus_fs.h85
1 files changed, 44 insertions, 41 deletions
diff --git a/fs/hfsplus/hfsplus_fs.h b/fs/hfsplus/hfsplus_fs.h
index dc856be3c2b0..cb3653efb57a 100644
--- a/fs/hfsplus/hfsplus_fs.h
+++ b/fs/hfsplus/hfsplus_fs.h
@@ -62,7 +62,7 @@ struct hfs_btree {
unsigned int depth;
//unsigned int map1_size, map_size;
- struct semaphore tree_lock;
+ struct mutex tree_lock;
unsigned int pages_per_bnode;
spinlock_t hash_lock;
@@ -121,16 +121,21 @@ struct hfsplus_sb_info {
u32 sect_count;
int fs_shift;
- /* Stuff in host order from Vol Header */
+ /* immutable data from the volume header */
u32 alloc_blksz;
int alloc_blksz_shift;
u32 total_blocks;
+ u32 data_clump_blocks, rsrc_clump_blocks;
+
+ /* mutable data from the volume header, protected by alloc_mutex */
u32 free_blocks;
- u32 next_alloc;
+ struct mutex alloc_mutex;
+
+ /* mutable data from the volume header, protected by vh_mutex */
u32 next_cnid;
u32 file_count;
u32 folder_count;
- u32 data_clump_blocks, rsrc_clump_blocks;
+ struct mutex vh_mutex;
/* Config options */
u32 creator;
@@ -143,40 +148,50 @@ struct hfsplus_sb_info {
int part, session;
unsigned long flags;
-
- struct hlist_head rsrc_inodes;
};
-#define HFSPLUS_SB_WRITEBACKUP 0x0001
-#define HFSPLUS_SB_NODECOMPOSE 0x0002
-#define HFSPLUS_SB_FORCE 0x0004
-#define HFSPLUS_SB_HFSX 0x0008
-#define HFSPLUS_SB_CASEFOLD 0x0010
+#define HFSPLUS_SB_WRITEBACKUP 0
+#define HFSPLUS_SB_NODECOMPOSE 1
+#define HFSPLUS_SB_FORCE 2
+#define HFSPLUS_SB_HFSX 3
+#define HFSPLUS_SB_CASEFOLD 4
struct hfsplus_inode_info {
- struct mutex extents_lock;
- u32 clump_blocks, alloc_blocks;
- sector_t fs_blocks;
- /* Allocation extents from catalog record or volume header */
- hfsplus_extent_rec first_extents;
- u32 first_blocks;
- hfsplus_extent_rec cached_extents;
- u32 cached_start, cached_blocks;
atomic_t opencnt;
- struct inode *rsrc_inode;
+ /*
+ * Extent allocation information, protected by extents_lock.
+ */
+ u32 first_blocks;
+ u32 clump_blocks;
+ u32 alloc_blocks;
+ u32 cached_start;
+ u32 cached_blocks;
+ hfsplus_extent_rec first_extents;
+ hfsplus_extent_rec cached_extents;
unsigned long flags;
+ struct mutex extents_lock;
+ /*
+ * Immutable data.
+ */
+ struct inode *rsrc_inode;
__be32 create_date;
- /* Device number in hfsplus_permissions in catalog */
- u32 dev;
- /* BSD system and user file flags */
- u8 rootflags;
- u8 userflags;
+ /*
+ * Protected by sbi->vh_mutex.
+ */
+ u32 linkid;
+
+ /*
+ * Protected by i_mutex.
+ */
+ sector_t fs_blocks;
+ u8 userflags; /* BSD user file flags */
struct list_head open_dir_list;
loff_t phys_size;
+
struct inode vfs_inode;
};
@@ -184,8 +199,8 @@ struct hfsplus_inode_info {
#define HFSPLUS_FLG_EXT_DIRTY 0x0002
#define HFSPLUS_FLG_EXT_NEW 0x0004
-#define HFSPLUS_IS_DATA(inode) (!(HFSPLUS_I(inode).flags & HFSPLUS_FLG_RSRC))
-#define HFSPLUS_IS_RSRC(inode) (HFSPLUS_I(inode).flags & HFSPLUS_FLG_RSRC)
+#define HFSPLUS_IS_DATA(inode) (!(HFSPLUS_I(inode)->flags & HFSPLUS_FLG_RSRC))
+#define HFSPLUS_IS_RSRC(inode) (HFSPLUS_I(inode)->flags & HFSPLUS_FLG_RSRC)
struct hfs_find_data {
/* filled by caller */
@@ -311,6 +326,7 @@ int hfsplus_create_cat(u32, struct inode *, struct qstr *, struct inode *);
int hfsplus_delete_cat(u32, struct inode *, struct qstr *);
int hfsplus_rename_cat(u32, struct inode *, struct qstr *,
struct inode *, struct qstr *);
+void hfsplus_cat_set_perms(struct inode *inode, struct hfsplus_perm *perms);
/* dir.c */
extern const struct inode_operations hfsplus_dir_inode_operations;
@@ -372,26 +388,15 @@ 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 HFSPLUS_SB(super) (*(struct hfsplus_sb_info *)(super)->s_fs_info)
-#define HFSPLUS_I(inode) (*list_entry(inode, struct hfsplus_inode_info, vfs_inode))
-
-#if 1
-#define hfsplus_kmap(p) ({ struct page *__p = (p); kmap(__p); })
-#define hfsplus_kunmap(p) ({ struct page *__p = (p); kunmap(__p); __p; })
-#else
-#define hfsplus_kmap(p) kmap(p)
-#define hfsplus_kunmap(p) kunmap(p)
-#endif
#define sb_bread512(sb, sec, data) ({ \
struct buffer_head *__bh; \
@@ -419,6 +424,4 @@ static inline struct hfsplus_inode_info *HFSPLUS_I(struct inode *inode)
#define hfsp_ut2mt(t) __hfsp_ut2mt((t).tv_sec)
#define hfsp_now2mt() __hfsp_ut2mt(get_seconds())
-#define kdev_t_to_nr(x) (x)
-
#endif