From: Theodore Ts'o <tytso@mit.edu>
Date: Wed, 8 Jul 2009 21:11:24 +0000 (-0400)
Subject: ext4: fix no journal corruption with locale-gen
X-Git-Tag: v2.6.31-rc3~1^2~9
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=5adfee9c17314c1411095c23191c3cb0c2d25f9f;p=pandora-kernel.git

ext4: fix no journal corruption with locale-gen

If there is no journal, ext4_should_writeback_data() should return
TRUE.  This will fix ext4_set_aops() to set ext4_da_ops in the case of
delayed allocation; otherwise ext4_journaled_aops gets used by
default, which doesn't handle delayed allocation properly.

The advantage of using ext4_should_writeback_data() approach is that
it should handle nobh better as well.

Thanks to Curt Wohlgemuth for investigating this problem, and Aneesh
Kumar for suggesting this approach.

Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
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