s390/pai: change sampling event assignment for PMU device driver

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Currently only one PAI sampling event can be created and active
at any one time. The PMU device drivers store a pointer to this
event in their data structures even when the event is created
for counting and the PMU device driver reference to this counting
event is never needed.
Change this and assign the pointer to the PMU device driver
only when a sampling event is created.

Signed-off-by: Thomas Richter <tmricht@linux.ibm.com>
Acked-by: Sumanth Korikkar <sumanthk@linux.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>

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Thomas Richter 2024-02-19 15:40:01 +01:00 • committed by Heiko Carstens

parent 13ff094d32

commit e22033fddd

2 changed files with 6 additions and 3 deletions

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4

arch/s390/kernel/perf_pai_crypto.c

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5

arch/s390/kernel/perf_pai_ext.c

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