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authorYi Zhang <yi.zhang@redhat.com>2025-04-23 13:32:28 -0500
committerMartin K. Petersen <martin.petersen@oracle.com>2025-04-28 21:43:26 -0400
commit42d033cf4b517e91c187ad2fbd7b30fdc6d2d62c (patch)
tree025d82eaf591566690160c70fbbc4904b13e2545 /tools/perf/scripts/python/gecko.py
parent001164fc3082cd8c53f65eb87a0f490e9780fd67 (diff)
scsi: smartpqi: Fix smp_processor_id() call trace for preemptible kernels
Correct kernel call trace when calling smp_processor_id() when called in preemptible kernels by using raw_smp_processor_id(). smp_processor_id() checks to see if preemption is disabled and if not, issue an error message followed by a call to dump_stack(). Brief example of call trace: kernel: check_preemption_disabled: 436 callbacks suppressed kernel: BUG: using smp_processor_id() in preemptible [00000000] code: kworker/u1025:0/2354 kernel: caller is pqi_scsi_queue_command+0x183/0x310 [smartpqi] kernel: CPU: 129 PID: 2354 Comm: kworker/u1025:0 kernel: ... kernel: Workqueue: writeback wb_workfn (flush-253:0) kernel: Call Trace: kernel: <TASK> kernel: dump_stack_lvl+0x34/0x48 kernel: check_preemption_disabled+0xdd/0xe0 kernel: pqi_scsi_queue_command+0x183/0x310 [smartpqi] kernel: ... Fixes: 283dcc1b142e ("scsi: smartpqi: add counter for parity write stream requests") Reviewed-by: Scott Benesh <scott.benesh@microchip.com> Reviewed-by: Mike McGowen <mike.mcgowen@microchip.com> Tested-by: Don Brace <don.brace@microchip.com> Signed-off-by: Yi Zhang <yi.zhang@redhat.com> Signed-off-by: Don Brace <don.brace@microchip.com> Link: https://lore.kernel.org/r/20250423183229.538572-5-don.brace@microchip.com Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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