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ceph: only unregister registered bdi

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Signed-off-by: Sage Weil <sage@newdream.net>
This commit is contained in:
Sage Weil 2009-12-21 21:04:26 -08:00
parent 5dacf09121
commit e0e3271074
1 changed files with 2 additions and 1 deletions
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3
fs/ceph/super.c
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@ -942,7 +942,8 @@ static void ceph_kill_sb(struct super_block *s)
dout("kill_sb %p\n", s);
ceph_mdsc_pre_umount(&client->mdsc);
kill_anon_super(s); /* will call put_super after sb is r/o */
bdi_unregister(&client->backing_dev_info);
if (s->s_bdi == &client->backing_dev_info)
bdi_unregister(&client->backing_dev_info);
bdi_destroy(&client->backing_dev_info);
ceph_destroy_client(client);
}