On 06/19/2017 04:20 PM, Mike Snitzer wrote:
Looks like submit_flush_bio() is disabling/enabling interrupts from
interrupt context. Ondrej, does this patch fix the issue?
I let it spin for 30 minutes on patched dm-integrity and everything
seems ok now. The moment I loaded back the old one it fell on face
almost immediately again.
Thanks!
diff --git a/drivers/md/dm-integrity.c b/drivers/md/dm-integrity.c
index 4ab10cf..93b1810 100644
--- a/drivers/md/dm-integrity.c
+++ b/drivers/md/dm-integrity.c
@@ -1105,10 +1105,13 @@ static void schedule_autocommit(struct dm_integrity_c *ic)
static void submit_flush_bio(struct dm_integrity_c *ic, struct dm_integrity_io *dio)
{
struct bio *bio;
- spin_lock_irq(&ic->endio_wait.lock);
+ unsigned long flags;
+
+ spin_lock_irqsave(&ic->endio_wait.lock, flags);
bio = dm_bio_from_per_bio_data(dio, sizeof(struct dm_integrity_io));
bio_list_add(&ic->flush_bio_list, bio);
- spin_unlock_irq(&ic->endio_wait.lock);
+ spin_unlock_irqrestore(&ic->endio_wait.lock, flags);
+
queue_work(ic->commit_wq, &ic->commit_work);
}
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