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| author | peter chang <dpf@google.com> | 2020-11-02 22:25:25 +0530 |
|---|---|---|
| committer | Martin K. Petersen <martin.petersen@oracle.com> | 2020-11-04 22:55:38 -0500 |
| commit | 7640e1eb8c5de33dafa6c68fd4389214ff9ec1f9 (patch) | |
| tree | bec964f1858536b3c2d49cf2e892ddbf75270fc0 /tools/perf/scripts/python | |
| parent | 94a0dfcf7d33ea96bf3eb0c33e4239942a4ff087 (diff) | |
| download | linux-7640e1eb8c5de33dafa6c68fd4389214ff9ec1f9.tar.gz linux-7640e1eb8c5de33dafa6c68fd4389214ff9ec1f9.zip | |
scsi: pm80xx: Make mpi_build_cmd locking consistent
Driver submits all internal requests (like abort_task, event acknowledgment
etc.) through inbound queue 0. While submitting those, driver does not
acquire any lock and this may lead to a race when there is an I/O request
coming in on CPU0 and submitted through inbound queue 0. To avoid this,
lock acquisition has been moved to pm8001_mpi_build_cmd(). All command
submission will go through this path.
Link: https://lore.kernel.org/r/20201102165528.26510-2-Viswas.G@microchip.com.com
Acked-by: Jack Wang <jinpu.wang@cloud.ionos.com>
Signed-off-by: peter chang <dpf@google.com>
Signed-off-by: Viswas G <Viswas.G@microchip.com>
Signed-off-by: Ruksar Devadi <Ruksar.devadi@microchip.com>
Signed-off-by: Radha Ramachandran <radha@google.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'tools/perf/scripts/python')
0 files changed, 0 insertions, 0 deletions