From 6700a678c02e47b6d50c51da2a46ff80efedb8c7 Mon Sep 17 00:00:00 2001
From: Jens Axboe <axboe@fb.com>
Date: Wed, 16 Apr 2014 10:38:35 -0600
Subject: [PATCH] blk-mq: kill preempt disable/enable in blk_mq_work_fn()

blk_mq_work_fn() is always invoked off the bounded workqueues,
so it can happily preempt among the queues in that set without
causing any issues for blk-mq.

Signed-off-by: Jens Axboe <axboe@fb.com>
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