The commit 6be5e186fd65 ("mm: vmscan: restore incremental cgroup
iteration") added a retry reclaim heuristic to iterate all the cgroups
before returning an unsuccessful reclaim but missed to reset the
sc->priority. Let's fix it.
Reported-and-tested-by: syzbot+17416257cb95200cba44@xxxxxxxxxxxxxxxxxxxxxxxxx
Fixes: 6be5e186fd65 ("mm: vmscan: restore incremental cgroup iteration")
Signed-off-by: Shakeel Butt <shakeel.butt@xxxxxxxxx>
---
mm/vmscan.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/mm/vmscan.c b/mm/vmscan.c
index b9170f767353..731b009a142b 100644
--- a/mm/vmscan.c
+++ b/mm/vmscan.c
@@ -6317,6 +6317,7 @@ static unsigned long do_try_to_free_pages(struct zonelist *zonelist,
* meaningful forward progress. Avoid false OOMs in this case.
*/
if (!sc->memcg_full_walk) {
+ sc->priority = initial_priority;
sc->memcg_full_walk = 1;
goto retry;
}
--
2.43.0
