From: Shaohua Li <shaohua.li@intel.com>
Date: Wed, 16 Nov 2011 08:21:50 +0000 (+0100)
Subject: block: avoid unnecessary plug list flush
X-Git-Tag: v3.2-rc3~39^2~3
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=3540d5e89b2ac268fcfc9b07a50a9ba4acc2e5e5;p=pandora-kernel.git

block: avoid unnecessary plug list flush

get_request_wait() could sleep and flush the plug list.  If the list is
already flushed, don't flush again.

Signed-off-by: Shaohua Li <shaohua.li@intel.com>
Reviewed-by: Namhyung Kim <namhyung@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
---

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