From: Chao Yu <chao2.yu@samsung.com>
Date: Thu, 8 May 2014 09:00:35 +0000 (+0800)
Subject: f2fs: avoid to use slab memory in f2fs_issue_flush for efficiency
X-Git-Tag: omap-for-v3.16/fixes-against-rc1~73^2~11
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=adf8d90b6a949dc80e827263fccb31f8eb08a55d;p=pandora-kernel.git

f2fs: avoid to use slab memory in f2fs_issue_flush for efficiency

If we use slab memory in f2fs_issue_flush(), we will face memory pressure and
latency time caused by racing of kmem_cache_{alloc,free}.

Let's alloc memory in stack instead of slab.

Signed-off-by: Chao Yu <chao2.yu@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
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