evie/android_kernel_oneplus_msm8998
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dm: md: Replace scheduling of request with direct call

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This is found to be improving the performance of Random
read and write with FDE enabled. The scheduling was
introduced as part of 4.4 kernel for mq support.

Change-Id: I300750b5f7f1cff4b81f028ae938e7d2b3652bd2
Signed-off-by: Neeraj Soni <neersoni@codeaurora.org>
This commit is contained in:
Neeraj Soni 2017-06-06 18:57:07 +05:30
parent 8d60131090
commit c9762c3c1a
1 changed files with 4 additions and 1 deletions
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5
drivers/md/dm.c
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@ -2191,8 +2191,11 @@ static void dm_request_fn(struct request_queue *q)
tio = tio_from_request(rq);
/* Establish tio->ti before queuing work (map_tio_request) */
tio->ti = ti;
queue_kthread_work(&md->kworker, &tio->work);
spin_unlock(q->queue_lock);
if (map_request(tio, rq, md) == DM_MAPIO_REQUEUE)
dm_requeue_original_request(md, rq);
BUG_ON(!irqs_disabled());
spin_lock(q->queue_lock);
}
goto out;