From: Greg Farnum <gregf@hq.newdream.net>
Date: Fri, 17 Sep 2010 17:24:02 +0000 (-0700)
Subject: ceph: preallocate flock state without locks held
X-Git-Tag: v2.6.37-rc1~221^2~11
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=fca4451acfdcf894154e4809529ca28a09db88ff;p=pandora-kernel.git

ceph: preallocate flock state without locks held

When the lock_kernel() turns into lock_flocks() and a spinlock, we won't
be able to do allocations with the lock held.  Preallocate space without
the lock, and retry if the lock state changes out from underneath us.

Signed-off-by: Greg Farnum <gregf@hq.newdream.net>
Signed-off-by: Sage Weil <sage@newdream.net>
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