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Date: Tue, 5 Jun 2012 09:21:16 +0800
From: Shaohua Li <shli@kernel.org>
To: Tao Guo <glorioustao@gmail.com>
Cc: linux-kernel@vger.kernel.org, Tao Guo <Tao.Guo@emc.com>,
	Neil Brown <neilb@suse.de>, Jens Axboe <axboe@kernel.dk>,
	stable@vger.kernel.org, Andrew Morton <akpm@linux-foundation.org>
Subject: Re: [PATCH 1/2] block: Move general unplug callback function from
 md/raid to blk-core
Message-ID: <20120605012116.GA357@kernel.org>
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On Mon, Jun 04, 2012 at 10:41:50AM -0400, Tao Guo wrote:
> Other components may also require an unplug callback, so move this
> function from md/raid to block generic layer.

I saw no point this should be generic code, for example, why blk_plug_cb only
handles only one request_queue? If umem needs unplug, just do in it.