From: Sage Weil <sage@newdream.net>
Date: Wed, 6 Apr 2011 16:09:16 +0000 (-0700)
Subject: libceph: fix linger request requeueing
X-Git-Tag: v2.6.39-rc4~26^2
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=77f38e0eeac290827f41fd2215ab82546b8f73b8;p=pandora-kernel.git

libceph: fix linger request requeueing

Fix the request transition from linger -> normal request.  The key is to
preserve r_osd and requeue on the same OSD.  Reregister as a normal request,
add the request to the proper queues, then unregister the linger.  Fix the
unregister helper to avoid clearing r_osd (and also simplify the parallel
check in __unregister_request()).

Reported-by: Henry Chang <henry.cy.chang@gmail.com>
Signed-off-by: Sage Weil <sage@newdream.net>
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