[PATCH 1/3] btrfs: qgroup: drop pointless return_any fallback when reading qgroup config

[Sun YangKai <sunk67188@gmail.com>]

btrfs_read_qgroup_config() initializes iteration over the quota root by
searching for the first item using a zeroed key (0, 0, 0).

The search is done with find_higher=1, meaning it looks for the first key
strictly greater than (0, 0, 0). However, the call also sets return_any=1,
which allows falling back to a lower key if no higher one is found.

Since (0, 0, 0) is the absolute minimum in the btrfs key space, there can
be no valid lower key. The return_any fallback is therefore impossible to
trigger and misleading in this context.

Set return_any to 0 to correctly express the intent: find the first item
greater than (0, 0, 0), or return not found if the quota root is empty.

Signed-off-by: Sun YangKai <sunk67188@gmail.com>
---
 fs/btrfs/qgroup.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fs/btrfs/qgroup.c b/fs/btrfs/qgroup.c
index 206587820fec..b8040740f7ca 100644
--- a/fs/btrfs/qgroup.c
+++ b/fs/btrfs/qgroup.c
@@ -415,7 +415,7 @@ int btrfs_read_qgroup_config(struct btrfs_fs_info *fs_info)
 	key.objectid = 0;
 	key.type = 0;
 	key.offset = 0;
-	ret = btrfs_search_slot_for_read(quota_root, &key, path, 1, 1);
+	ret = btrfs_search_slot_for_read(quota_root, &key, path, 1, 0);
 	if (ret)
 		goto out;
 
-- 
2.52.0