From: Ilya Dryomov <ilya.dryomov@inktank.com>
Date: Tue, 24 Dec 2013 19:19:24 +0000 (+0200)
Subject: crush: pass weight vector size to map function
X-Git-Tag: v3.14-rc1~71^2~50
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=b3b33b0e43323af4fb697f4378218d3c268d02cd;p=pandora-kernel.git

crush: pass weight vector size to map function

Pass the size of the weight vector into crush_do_rule() to ensure that we
don't access values past the end.  This can happen if the caller misbehaves
and passes a weight vector that is smaller than max_devices.

Currently the monitor tries to prevent that from happening, but this will
gracefully tolerate previous bad osdmaps that got into this state.  It's
also a bit more defensive.

Reflects ceph.git commit 5922e2c2b8335b5e46c9504349c3a55b7434c01a.

Signed-off-by: Ilya Dryomov <ilya.dryomov@inktank.com>
Reviewed-by: Sage Weil <sage@inktank.com>
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