From: Jaegeuk Kim <jaegeuk@kernel.org>
Date: Thu, 26 Feb 2015 03:54:48 +0000 (-0800)
Subject: f2fs: check its block allocation to avoid producing wrong dirty pages
X-Git-Tag: omap-for-v4.2/o2_dc~90^2~47
X-Git-Url: https://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=b7f204cca4b7155f47e64555614b1f534a53737e;p=pandora-kernel.git

f2fs: check its block allocation to avoid producing wrong dirty pages

If a page is cached but its block was deallocated, we don't need to make
the page dirty again by gc and truncate_partial_data_page.

In that case, it needs to check its block allocation all the time instead
of giving up-to-date page.

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