IB/hfi1: Fix missing lock/unlock in verbs drain callback

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The iowait_sdma_drained() callback lacked locking to
protect the qp s_flags field.

This causes the s_flags to be out of sync
on multiple CPUs, potentially corrupting the s_flags.

Fixes: a545f5308b ("staging/rdma/hfi: fix CQ completion order issue")
Reviewed-by: Sebastian Sanchez <sebastian.sanchez@intel.com>
Signed-off-by: Mike Marciniszyn <mike.marciniszyn@intel.com>
Reviewed-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>

...

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Mike Marciniszyn 2016-04-20 06:05:30 -07:00 • committed by Doug Ledford

parent e6d2e0176e

commit b9b06cb6fe

1 changed files with 2 additions and 0 deletions

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drivers/staging/rdma/hfi1/qp.c

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