From: Sage Weil <sage@newdream.net>
Date: Mon, 9 Nov 2009 20:05:48 +0000 (-0800)
Subject: ceph: do not confuse stale and dead (unreconnected) caps
X-Git-Tag: v2.6.34-rc2~9^2~134
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=685f9a5d14194fc35db73e5e7370740ccc14b64a;p=pandora-kernel.git

ceph: do not confuse stale and dead (unreconnected) caps

We were using the cap_gen to track both stale caps (caps that timed out
due to temporarily losing touch with the mds) and dead caps that did not
reconnect after an MDS failure.  Introduce a recon_gen counter to track
reconnections to restarted MDSs and kill dead caps based on that instead.

Rename gen to cap_gen while we're at it to make it more clear which is
which.

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