__merge_refs was deleting unresolved prelim refs resulting in missed
backrefs in the backref walking code. Thanks to Arne and Jan for finding
this.
Signed-off-by: Alexander Block <ablock84@xxxxxxxxxxxxxx>
---
fs/btrfs/backref.c | 2 ++
1 files changed, 2 insertions(+), 0 deletions(-)
diff --git a/fs/btrfs/backref.c b/fs/btrfs/backref.c
index b4b940e..f28ecba 100644
--- a/fs/btrfs/backref.c
+++ b/fs/btrfs/backref.c
@@ -265,6 +265,8 @@ static int __merge_refs(struct list_head *head, int mode)
if (mode == 1 && ref1->key.type == 0)
continue;
+ if (ref1->parent)
+ continue;
for (pos2 = pos1->next, n2 = pos2->next; pos2 != head;
pos2 = n2, n2 = pos2->next) {
struct __prelim_ref *ref2;
--
1.7.3.4
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