Btrfs: Implement new dir index format
Signed-off-by: Chris Mason <chris.mason@oracle.com>
diff --git a/fs/btrfs/btrfs_inode.h b/fs/btrfs/btrfs_inode.h
index 3bf4059..b7bd60e 100644
--- a/fs/btrfs/btrfs_inode.h
+++ b/fs/btrfs/btrfs_inode.h
@@ -43,6 +43,21 @@
u64 delalloc_bytes;
u64 disk_i_size;
u32 flags;
+
+ /*
+ * if this is a directory then index_cnt is the counter for the index
+ * number for new files that are created
+ */
+ u64 index_cnt;
+
+ /*
+ * index holds the directory index for this inode on creation, so
+ * add_link can do what its supposed to. This isn't populated when the
+ * inode is read because there isn't really a reason to know this unless
+ * we are creating the directory index or deleting it, and deletion
+ * reads the index off of the inode reference at unlink time.
+ */
+ u64 index;
};
static inline struct btrfs_inode *BTRFS_I(struct inode *inode)