From: Tejun Heo <tj@kernel.org>
Date: Wed, 26 Jan 2011 16:42:27 +0000 (+0100)
Subject: fs/aio: aio_wq isn't used in memory reclaim path
X-Git-Tag: v2.6.39-rc1~492^2~15
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=d37adaa1596246929f7ab49843fd124595506175;p=pandora-kernel.git

fs/aio: aio_wq isn't used in memory reclaim path

aio_wq isn't used during memory reclaim.  Convert to alloc_workqueue()
without WQ_MEM_RECLAIM.  It's possible to use system_wq but given that
the number of work items is determined from userland and the work item
may block, enforcing strict concurrency limit would be a good idea.

Also, move fput_work to system_wq so that aio_wq is used soley to
throttle the max concurrency of aio work items and fput_work doesn't
interact with other work items.

Signed-off-by: Tejun Heo <tj@kernel.org>
Acked-by: Jeff Moyer <jmoyer@redhat.com>
Cc: Benjamin LaHaise <bcrl@kvack.org>
Cc: linux-aio@kvack.org
---

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