From: Sean Hefty <mshefty@ichips.intel.com>
Date: Fri, 12 May 2006 21:57:52 +0000 (-0700)
Subject: IB: refcount race fixes
X-Git-Tag: v2.6.17-rc5~162
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=1b52fa98edd1c3e663ea4a06519e3d20976084a8;p=pandora-kernel.git

IB: refcount race fixes

Fix race condition during destruction calls to avoid possibility of
accessing object after it has been freed.  Instead of waking up a wait
queue directly, which is susceptible to a race where the object is
freed between the reference count going to 0 and the wake_up(), use a
completion to wait in the function doing the freeing.

Signed-off-by: Sean Hefty <sean.hefty@intel.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
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