[v3,11/12] btrfs: assert nowait mode is not used for some btree search functions

Commit Message

Stefan Roesch Sept. 12, 2022, 7:27 p.m. UTC

This adds nowait asserts to btree search functions which are not used
by buffered IO and direct IO paths.

Signed-off-by: Stefan Roesch <[e-mail]>
---
 fs/btrfs/ctree.c | 4 ++++
 1 file changed, 4 insertions(+)

Patch

diff --git a/fs/btrfs/ctree.c b/fs/btrfs/ctree.c
index 71b238364939..d973d6702cd0 100644
--- a/fs/btrfs/ctree.c
+++ b/fs/btrfs/ctree.c
@@ -2164,6 +2164,7 @@  int btrfs_search_old_slot(struct btrfs_root *root, const struct btrfs_key *key,
 
 	lowest_level = p->lowest_level;
 	WARN_ON(p->nodes[0] != NULL);
+	ASSERT(!p->nowait);
 
 	if (p->search_commit_root) {
 		BUG_ON(time_seq);
@@ -4465,6 +4466,7 @@  int btrfs_search_forward(struct btrfs_root *root, struct btrfs_key *min_key,
 	int ret = 1;
 	int keep_locks = path->keep_locks;
 
+	ASSERT(!path->nowait);
 	path->keep_locks = 1;
 again:
 	cur = btrfs_read_lock_root_node(root);
@@ -4645,6 +4647,8 @@  int btrfs_next_old_leaf(struct btrfs_root *root, struct btrfs_path *path,
 	int ret;
 	int i;
 
+	ASSERT(!path->nowait);
+
 	nritems = btrfs_header_nritems(path->nodes[0]);
 	if (nritems == 0)
 		return 1;