From: Theodore Ts'o <tytso@mit.edu>
Date: Sun, 26 Apr 2009 02:53:39 +0000 (-0400)
Subject: ext4: Replace lock/unlock_super() with an explicit lock for resizing
X-Git-Tag: v2.6.31-rc1~396^2~36
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=32ed5058ce90024efcd811254b4b1de0468099df;p=pandora-kernel.git

ext4: Replace lock/unlock_super() with an explicit lock for resizing

Use a separate lock to protect s_groups_count and the other block
group descriptors which get changed via an on-line resize operation,
so we can stop overloading the use of lock_super().

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