From c611cc0360cd924448c23ccd70ce8be703fcb4a6 Mon Sep 17 00:00:00 2001 From: "Darrick J. Wong" Date: Mon, 19 Sep 2016 10:25:20 +1000 Subject: xfs: count the blocks in a btree Provide a helper method to count the number of blocks in a short form btree. The refcount and rmap btrees need to know the number of blocks already in use to set up their per-AG block reservations during mount. Signed-off-by: Darrick J. Wong Reviewed-by: Christoph Hellwig Signed-off-by: Dave Chinner --- fs/xfs/libxfs/xfs_btree.h | 2 ++ 1 file changed, 2 insertions(+) (limited to 'fs/xfs/libxfs/xfs_btree.h') diff --git a/fs/xfs/libxfs/xfs_btree.h b/fs/xfs/libxfs/xfs_btree.h index 1c148f5c5675..3f8556a5c2ad 100644 --- a/fs/xfs/libxfs/xfs_btree.h +++ b/fs/xfs/libxfs/xfs_btree.h @@ -519,4 +519,6 @@ typedef int (*xfs_btree_visit_blocks_fn)(struct xfs_btree_cur *cur, int level, int xfs_btree_visit_blocks(struct xfs_btree_cur *cur, xfs_btree_visit_blocks_fn fn, void *data); +int xfs_btree_count_blocks(struct xfs_btree_cur *cur, xfs_extlen_t *blocks); + #endif /* __XFS_BTREE_H__ */ -- cgit v1.2.3