When we're going to abort the transaction, we need to first do cleanup
work for the left refs on the cluster list, otherwise we'll get list_del
debug warnings.
(Taken from Miao's patch: Btrfs: fix deadlock when the process of delayed refs fails)
Signed-off-by: Miao Xie <miaox@xxxxxxxxxxxxxx>
Signed-off-by: Liu Bo <bo.li.liu@xxxxxxxxxx>
---
fs/btrfs/extent-tree.c | 6 ++++++
1 files changed, 6 insertions(+), 0 deletions(-)
diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c
index 61da9d0..7e7884f 100644
--- a/fs/btrfs/extent-tree.c
+++ b/fs/btrfs/extent-tree.c
@@ -2500,6 +2500,12 @@ again:
ret = run_clustered_refs(trans, root, &cluster);
if (ret < 0) {
+ if (!list_empty(&cluster)) {
+ struct list_head *pos, *next;
+
+ list_for_each_safe(pos, next, &cluster);
+ list_del_init(pos);
+ }
spin_unlock(&delayed_refs->lock);
btrfs_abort_transaction(trans, root, ret);
return ret;
--
1.7.7.6
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