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linux/drivers/infiniband/sw
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Niels Dossche 4d809f6969 IB/rdmavt: add lock to call to rvt_error_qp to prevent a race condition 
The documentation of the function rvt_error_qp says both r_lock and s_lock
need to be held when calling that function.  It also asserts using lockdep
that both of those locks are held.  However, the commit I referenced in
Fixes accidentally makes the call to rvt_error_qp in rvt_ruc_loopback no
longer covered by r_lock.  This results in the lockdep assertion failing
and also possibly in a race condition.

Fixes: d757c60eca ("IB/rdmavt: Fix concurrency panics in QP post_send and modify to error")
Link: https://lore.kernel.org/r/20220228165330.41546-1-dossche.niels@gmail.com
Signed-off-by: Niels Dossche <dossche.niels@gmail.com>
Acked-by: Dennis Dalessandro <dennis.dalessandro@cornelisnetworks.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
History 2022-04-04 14:45:02 -03:00
..
rdmavt IB/rdmavt: add lock to call to rvt_error_qp to prevent a race condition 2022-04-04 14:45:02 -03:00
rxe RDMA/rxe: Use standard names for ref counting 2022-03-16 10:34:42 -03:00
siw RDMA/siw: Fix broken RDMA Read Fence/Resume logic. 2022-02-01 09:54:28 -04:00
Makefile rdma/siw: addition to kernel build environment 2019-07-02 17:03:41 -03:00