RDMA/qedr: Fix kernel panic when running fio over NFSoRDMA

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Race in qedr_poll_cq, lastest_cqe wasn't protected by lock,
leading to a case where two context's accessing poll_cq at
the same time lead to one of them having a pointer to an old
latest_cqe and reading an invalid cqe element

Signed-off-by: Amit Radzi <Amit.Radzi@cavium.com>
Signed-off-by: Michal Kalderon <Michal.Kalderon@cavium.com>
Signed-off-by: Ariel Elior <Ariel.Elior@cavium.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>

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Kalderon, Michal 2018-03-05 10:50:10 +02:00 • committed by Jason Gunthorpe

parent ea0ed47803

commit e3fd112cbf

1 changed files with 2 additions and 1 deletions

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drivers/infiniband/hw/qedr/verbs.c

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