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-rw-r--r--drivers/md/raid10.c19
1 files changed, 16 insertions, 3 deletions
diff --git a/drivers/md/raid10.c b/drivers/md/raid10.c
index 4c4aab02e311..b19b551bb34b 100644
--- a/drivers/md/raid10.c
+++ b/drivers/md/raid10.c
@@ -1407,11 +1407,24 @@ retry_write:
mbio->bi_private = r10_bio;
atomic_inc(&r10_bio->remaining);
+
+ cb = blk_check_plugged(raid10_unplug, mddev,
+ sizeof(*plug));
+ if (cb)
+ plug = container_of(cb, struct raid10_plug_cb,
+ cb);
+ else
+ plug = NULL;
spin_lock_irqsave(&conf->device_lock, flags);
- bio_list_add(&conf->pending_bio_list, mbio);
- conf->pending_count++;
+ if (plug) {
+ bio_list_add(&plug->pending, mbio);
+ plug->pending_cnt++;
+ } else {
+ bio_list_add(&conf->pending_bio_list, mbio);
+ conf->pending_count++;
+ }
spin_unlock_irqrestore(&conf->device_lock, flags);
- if (!mddev_check_plugged(mddev))
+ if (!plug)
md_wakeup_thread(mddev->thread);
}
}