From fcba0120edf88328524a4878d1d6f4ad39f2ec81 Mon Sep 17 00:00:00 2001 From: Josef Bacik Date: Fri, 5 Nov 2021 16:45:34 -0400 Subject: [PATCH] btrfs: remove BUG_ON() in find_parent_nodes() We search for an extent entry with .offset = -1, which shouldn't be a thing, but corruption happens. Add an ASSERT() for the developers, return -EUCLEAN for mortals. Signed-off-by: Josef Bacik Reviewed-by: David Sterba Signed-off-by: David Sterba --- fs/btrfs/backref.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) diff --git a/fs/btrfs/backref.c b/fs/btrfs/backref.c index cebdb75ac6bb..01e1a0897195 100644 --- a/fs/btrfs/backref.c +++ b/fs/btrfs/backref.c @@ -1210,7 +1210,12 @@ again: ret = btrfs_search_slot(NULL, root, &key, path, 0, 0); if (ret < 0) goto out; - BUG_ON(ret == 0); + if (ret == 0) { + /* This shouldn't happen, indicates a bug or fs corruption. */ + ASSERT(ret != 0); + ret = -EUCLEAN; + goto out; + } if (trans && likely(trans->type != __TRANS_DUMMY) && time_seq != BTRFS_SEQ_LAST) {