Commit 7e2355ba authored May 11, 2011 by Josef Bacik

Btrfs: don't look at the extent buffer level 3 times in a row



We have a bit of debugging in btrfs_search_slot to make sure the level of the
cow block is the same as the original block we were cow'ing.  I don't think I've
ever seen this tripped, so kill it.  This saves us 2 kmap's per level in our
search.  Thanks,

Signed-off-by: Josef Bacik <josef@redhat.com>

parent cb25c2ea

fs/btrfs/ctree.c

+0 −3

Original line number	Diff line number	Diff line
		@@ -1672,9 +1672,6 @@ int btrfs_search_slot(struct btrfs_trans_handle *trans, struct btrfs_root
		}
		cow_done:
		BUG_ON(!cow && ins_len);
		if (level != btrfs_header_level(b))
		WARN_ON(1);
		level = btrfs_header_level(b);

		p->nodes[level] = b;
		if (!p->skip_locking)