From: Sage Weil <sage@newdream.net>
Date: Tue, 4 May 2010 23:14:46 +0000 (-0700)
Subject: ceph: unregister bdi before kill_anon_super releases device name
X-Git-Tag: v2.6.34~27^2~8
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=5dfc589a8467470226feccdc50f1b32713318e7b;p=pandora-kernel.git

ceph: unregister bdi before kill_anon_super releases device name

Unregister and destroy the bdi in put_super, after mount is r/o, but before
put_anon_super releases the device name.

For symmetry, bdi_destroy in destroy_client (we bdi_init in create_client).

Only set s_bdi if bdi_register succeeds, since we use it to decide whether
to bdi_unregister.

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