From: Josef Bacik <josef@toxicpanda.com>

We don't need to search back to the inode item, the directory inode
number is in key.offset, so simply use that.  If we can't find the
directory we'll get an ENOENT at the iget.

Signed-off-by: Josef Bacik <josef@toxicpanda.com>
---
 fs/btrfs/ioctl.c | 23 +++--------------------
 1 file changed, 3 insertions(+), 20 deletions(-)

diff --git a/fs/btrfs/ioctl.c b/fs/btrfs/ioctl.c
index c2d992f5ce7d..69df5765acfa 100644
--- a/fs/btrfs/ioctl.c
+++ b/fs/btrfs/ioctl.c
@@ -1822,7 +1822,7 @@ static int btrfs_search_path_in_tree_user(struct mnt_idmap *idmap,
 	struct btrfs_root_ref *rref;
 	struct btrfs_root *root = NULL;
 	struct btrfs_path *path;
-	struct btrfs_key key, key2;
+	struct btrfs_key key;
 	struct extent_buffer *leaf;
 	char *ptr;
 	int slot;
@@ -1877,24 +1877,6 @@ static int btrfs_search_path_in_tree_user(struct mnt_idmap *idmap,
 			read_extent_buffer(leaf, ptr,
 					(unsigned long)(iref + 1), len);
 
-			/* Check the read+exec permission of this directory */
-			ret = btrfs_previous_item(root, path, dirid,
-						  BTRFS_INODE_ITEM_KEY);
-			if (ret < 0) {
-				goto out_put;
-			} else if (ret > 0) {
-				ret = -ENOENT;
-				goto out_put;
-			}
-
-			leaf = path->nodes[0];
-			slot = path->slots[0];
-			btrfs_item_key_to_cpu(leaf, &key2, slot);
-			if (key2.objectid != dirid) {
-				ret = -ENOENT;
-				goto out_put;
-			}
-
 			/*
 			 * We don't need the path anymore, so release it and
 			 * avoid deadlocks and lockdep warnings in case
@@ -1902,11 +1884,12 @@ static int btrfs_search_path_in_tree_user(struct mnt_idmap *idmap,
 			 * btree and lock the same leaf.
 			 */
 			btrfs_release_path(path);
-			temp_inode = btrfs_iget(key2.objectid, root);
+			temp_inode = btrfs_iget(key.offset, root);
 			if (IS_ERR(temp_inode)) {
 				ret = PTR_ERR(temp_inode);
 				goto out_put;
 			}
+			/* Check the read+exec permission of this directory */
 			ret = inode_permission(idmap, &temp_inode->vfs_inode,
 					       MAY_READ | MAY_EXEC);
 			iput(&temp_inode->vfs_inode);
-- 
2.51.0

On 11/18/25 5:13 PM, Daniel Vacek wrote:
> +			/* Check the read+exec permission of this directory */

I'd put this hunk into 4/6.

and needs your SoB as well.

Otherwise,

Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>