From: Sage Weil <sage@newdream.net>
Date: Tue, 9 Mar 2010 20:52:26 +0000 (-0800)
Subject: ceph: add missing locking to protect i_snap_realm_item during split
X-Git-Tag: v2.6.34-rc3~6^2~26
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=052bb34af3bf8ae2001b9f03d884ba0def3e427c;p=pandora-kernel.git

ceph: add missing locking to protect i_snap_realm_item during split

All ci->i_snap_realm_item/realm->inodes_with_caps manipulation should be
protected by realm->inodes_with_caps_lock.  This bug would have only bit
us in a rare race with a realm split (during some snap creations).

Signed-off-by: Sage Weil <sage@newdream.net>
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