Hi,

Excuse me for the long Cc list.
I kept people in the thread below in Cc.
http://marc.theaimsgroup.com/?l=linux-kernel&m=116221664710826&w=2

The patch below fixes bd_claim_by_kobject to release bdev correctly
in case that bd_claim succeeds but following add_bd_holder fails.

If it happens, the caller takes it didn't bd_claim() where actually
it did. The bdev becomes no longer bd_claim-able from others.
I don't have any reproducible test case for it but it's a bug.
The bug is introduced in 2.6.18-rc1-mm2 and now in 2.6.19-rc3.

Please consider to apply.

Thanks,
-- 
Jun'ichi Nomura, NEC Corporation of America