From: Sage Weil <sage@inktank.com>
Date: Mon, 7 May 2012 22:33:36 +0000 (-0700)
Subject: ceph: drop support for preferred_osd pgs
X-Git-Tag: v3.5-rc1~36^2~43
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=3469ac1aa3a2f1e2586a412923c414779a0af854;p=pandora-kernel.git

ceph: drop support for preferred_osd pgs

This was an ill-conceived feature that has been removed from Ceph.  Do
this gracefully:

 - reject attempts to specify a preferred_osd via the ioctl
 - stop exposing this information via virtual xattrs
 - always fill in -1 for requests, in case we talk to an older server
 - don't calculate preferred_osd placements/pgids

Reviewed-by: Alex Elder <elder@inktank.com>
Signed-off-by: Sage Weil <sage@inktank.com>
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