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authorStefan Roesch <shr@fb.com>2022-09-12 22:27:51 +0300
committerDavid Sterba <dsterba@suse.com>2022-09-29 18:08:29 +0300
commitc922b016f353eafb69997d8c0f06efdf945315ce (patch)
tree9e017096daec3b3915d0817fc276158d1b8fcfbf /fs/btrfs
parent965f47aeb5deddc59a1ace28e99b2a578df57305 (diff)
downloadlinux-c922b016f353eafb69997d8c0f06efdf945315ce.tar.xz
btrfs: assert nowait mode is not used for some btree search functions
Adds nowait asserts to btree search functions which are not used by buffered IO and direct IO paths. Reviewed-by: Filipe Manana <fdmanana@suse.com> Signed-off-by: Stefan Roesch <shr@fb.com> Reviewed-by: David Sterba <dsterba@suse.com> Signed-off-by: David Sterba <dsterba@suse.com>
Diffstat (limited to 'fs/btrfs')
-rw-r--r--fs/btrfs/ctree.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/fs/btrfs/ctree.c b/fs/btrfs/ctree.c
index 84548b4074f7..b39b339fbf96 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;