Commit 4357dd76 authored by Sun YangKai's avatar Sun YangKai Committed by David Sterba
Browse files

btrfs: remove redundant level reset in btrfs_del_items() 



When btrfs_del_items() empties a leaf, it deletes the leaf unless it's
the root node. For the root leaf case, the code used to reset its level
to 0 via btrfs_set_header_level(). This is redundant as leaf nodes
always have level == 0.

Remove the unnecessary level assignment and invert the conditional to
handle only the non-root leaf deletion. The root leaf is correctly left
as-is.

Signed-off-by: default avatarSun YangKai <sunk67188@gmail.com>
Reviewed-by: default avatarDavid Sterba <dsterba@suse.com>
Signed-off-by: default avatarDavid Sterba <dsterba@suse.com>
parent 139f75a3

fs/btrfs/ctree.c

+1 −3
Original line number Diff line number Diff line
@@ -4520,9 +4520,7 @@ int btrfs_del_items(struct btrfs_trans_handle *trans, struct btrfs_root *root, 


	/* delete the leaf if we've emptied it */

	if (nritems == 0) {

		if (leaf == root->node) {

			btrfs_set_header_level(leaf, 0);

		} else {

		if (leaf != root->node) {

			btrfs_clear_buffer_dirty(trans, leaf);

			ret = btrfs_del_leaf(trans, root, path, leaf);

			if (ret < 0)