From: Theodore Ts'o <tytso@mit.edu>
Date: Mon, 15 Jun 2009 07:41:23 +0000 (-0400)
Subject: ext4: Don't update ctime for non-extent-mapped inodes
X-Git-Tag: v2.6.31-rc1~138^2~1
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=4159175058987cb68aefd0e9eec2598b795363b4;p=pandora-kernel.git

ext4: Don't update ctime for non-extent-mapped inodes

The VFS handles updating ctime, so we don't need to update the inode's
ctime in ext4_splace_branch() to update the direct or indirect blocks.
This was harmless when we did this in ext3, but in ext4, thanks to
delayed allocation, updating the ctime in ext4_splice_branch() can
cause the ctime to mysteriously jump when the blocks are finally
allocated.

Thanks to Björn Steinbrink for pointing out this problem on the git
mailing list.

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