From: Shaohua Li <shli@kernel.org>
Date: Sun, 20 May 2012 23:26:59 +0000 (+1000)
Subject: md: using GFP_NOIO to allocate bio for flush request
X-Git-Tag: v3.5-rc1~110^2~55
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=b5e1b8cee7ad58a15d2fa79bcd7946acb592602d;p=pandora-kernel.git

md: using GFP_NOIO to allocate bio for flush request

A flush request is usually issued in transaction commit code path, so
using GFP_KERNEL to allocate memory for flush request bio falls into
the classic deadlock issue.

This is suitable for any -stable kernel to which it applies as it
avoids a possible deadlock.

Cc: stable@vger.kernel.org
Signed-off-by: Shaohua Li <shli@fusionio.com>
Signed-off-by: NeilBrown <neilb@suse.de>
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