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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: Sun YangKai <sunk67188@gmail.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
pull/1354/merge
Sun YangKai 2025-11-14 15:24:48 +08:00 committed by David Sterba
parent 139f75a3b1
commit 4357dd76f5
1 changed files with 1 additions and 3 deletions
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4
fs/btrfs/ctree.c
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@ -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)