From: Jaegeuk Kim <jaegeuk@kernel.org>
Date: Sat, 14 Mar 2015 04:44:36 +0000 (-0700)
Subject: f2fs: enhance multi-threads performance
X-Git-Tag: omap-for-v4.2/o2_dc~90^2~23
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=78373b7319abdf15050af5b1632c4c8b8b398f33;p=pandora-kernel.git

f2fs: enhance multi-threads performance

Previously, f2fs_write_data_pages has a mutex, sbi->writepages, to serialize
data writes to maximize write bandwidth, while sacrificing multi-threads
performance.
Practically, however, multi-threads environment is much more important for
users. So this patch tries to remove the mutex.

Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
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