hfsplus: optimize fsync

[pandora-kernel.git] / fs / hfsplus / hfsplus_fs.h

diff --git a/fs/hfsplus/hfsplus_fs.h b/fs/hfsplus/hfsplus_fs.h
index 9889d00..65c698f 100644 (file)
--- a/fs/hfsplus/hfsplus_fs.h
+++ b/fs/hfsplus/hfsplus_fs.h
@@ -157,6 +157,11 @@ struct hfsplus_sb_info {
 #define HFSPLUS_SB_HFSX                3
 #define HFSPLUS_SB_CASEFOLD    4
 
+static inline struct hfsplus_sb_info *HFSPLUS_SB(struct super_block *sb)
+{
+       return sb->s_fs_info;
+}
+
 
 struct hfsplus_inode_info {
        atomic_t opencnt;
@@ -205,10 +210,31 @@ struct hfsplus_inode_info {
 #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);
+}
+
+/*
+ * 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 */
        hfsplus_btree_key *search_key;
@@ -397,17 +423,6 @@ int hfs_part_find(struct super_block *, sector_t *, sector_t *);
 int hfsplus_submit_bio(struct block_device *bdev, sector_t sector,
                void *data, int rw);
 
-/* 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);
-}
-
 /* time macros */
 #define __hfsp_mt2ut(t)                (be32_to_cpu(t) - 2082844800U)
 #define __hfsp_ut2mt(t)                (cpu_to_be32(t + 2082844800U))