From: Jaegeuk Kim <jaegeuk.kim@samsung.com>
Date: Wed, 19 Mar 2014 01:43:59 +0000 (+0900)
Subject: f2fs: avoid to drop nat entries due to the negative nr_shrink
X-Git-Tag: v3.15-rc1~62^2~17
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=40bb0058c871c6ddcd4aff9fe2f5224e59aba47b;p=pandora-kernel.git

f2fs: avoid to drop nat entries due to the negative nr_shrink

The try_to_free_nats should not receive the negative nr_shrink.
Otherwise, it can drop all the nat entries by the while loop.

Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
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