From: Chao Yu <chao2.yu@samsung.com>
Date: Wed, 6 May 2015 05:08:06 +0000 (+0800)
Subject: f2fs: introduce f2fs_replace_block() for reuse
X-Git-Tag: omap-for-v4.3/legacy-v2-signed~156^2~57
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=19f106bc03e62739961249a29916ee3602ac3de9;p=pandora-kernel.git

f2fs: introduce f2fs_replace_block() for reuse

Introduce a generic function replace_block base on recover_data_page,
and export it. So with it we can operate file's meta data which is in
CP/SSA area when we invoke fallocate with FALLOC_FL_COLLAPSE_RANGE
flag.

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