From: Pingfan Liu <pi...@redhat.com>
Otherwise the while() loop in dm_wq_work() can result in a "dead
loop" on systems that have preemption disabled. This is particularly
problematic on single cpu systems.
Cc: sta...@vger.kernel.org
Signed-off-by: Pingfan Liu <pi...@redhat.com>
Acked-by: Ming Lei <ming....@redhat.com>
Signed-off-by: Mike Snitzer <snit...@kernel.org>
---
drivers/md/dm.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/md/dm.c b/drivers/md/dm.c
index 90b64bfc63b0..15b91959e433 100644
--- a/drivers/md/dm.c
+++ b/drivers/md/dm.c
@@ -2570,6 +2570,7 @@ static void dm_wq_work(struct work_struct *work)
break;
submit_bio_noacct(bio);
+ cond_resched();
}
}
--
2.37.0 (Apple Git-136)
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