From: Alex Elder <elder@inktank.com>
Date: Thu, 19 Jul 2012 13:49:18 +0000 (-0500)
Subject: rbd: preserve snapc->seq in rbd_header_set_snap()
X-Git-Tag: v3.6-rc1~36^2~39
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=78dc447d3ca3701206a1dd813c901556a3fad451;p=pandora-kernel.git

rbd: preserve snapc->seq in rbd_header_set_snap()

In rbd_header_set_snap(), there is logic to make the snap context's
seq field get set to a particular snapshot id, or 0 if there is no
snapshot for the rbd image.

This seems to be an artifact of how the current snapshot id for an
rbd_dev was recorded before the rbd_dev->snap_id field began to be
used for that purpose.

There's no need to update the value of snapc->seq here any more, so
stop doing it.  Tidy up a few local variables in that function
while we're at it.

Signed-off-by: Alex Elder <elder@inktank.com>
Reviewed-by: Josh Durgin <josh.durgin@inktank.com>
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