Merge tag 'v2.6.37' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6

[mv-sheeva.git] / fs / hfsplus / hfsplus_fs.h

diff --git a/fs/hfsplus/hfsplus_fs.h b/fs/hfsplus/hfsplus_fs.h
index dc856be3c2b010854c78da1049b86d2f7ce48147..cb3653efb57a2dcf2285a19fcb7262cb7a1ba509 100644 (file)
--- 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