3.13.11.5 -stable review patch. If anyone has any objections, please let me know.
------------------
From: Chris Mason <clm@xxxxxx>
commit 7d78874273463a784759916fc3e0b4e2eb141c70 upstream.
We need to NULL the cached_state after freeing it, otherwise
we might free it again if find_delalloc_range doesn't find anything.
Signed-off-by: Chris Mason <clm@xxxxxx>
Signed-off-by: Kamal Mostafa <kamal@xxxxxxxxxxxxx>
---
fs/btrfs/extent_io.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/fs/btrfs/extent_io.c b/fs/btrfs/extent_io.c
index ff43802..809bbe1 100644
--- a/fs/btrfs/extent_io.c
+++ b/fs/btrfs/extent_io.c
@@ -1644,6 +1644,7 @@ again:
* shortening the size of the delalloc range we're searching
*/
free_extent_state(cached_state);
+ cached_state = NULL;
if (!loops) {
max_bytes = PAGE_CACHE_SIZE;
loops = 1;
--
1.9.1
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