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authorAndrew Murray <andrew.murray@arm.com>2019-06-17 20:01:03 +0100
committerMarc Zyngier <marc.zyngier@arm.com>2019-07-05 13:56:14 +0100
commit30d97754b2d1bc4fd20f27c25fed92fc7ce39ce3 (patch)
treeea0c47cbc46a38bef2edd0373e56d675be9acd5d /kernel/bpf/btf.c
parent6f4d2a0b0b1e9a1f7594e666eebad98372901818 (diff)
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KVM: arm/arm64: Re-create event when setting counter value
The perf event sample_period is currently set based upon the current counter value, when PMXEVTYPER is written to and the perf event is created. However the user may choose to write the type before the counter value in which case sample_period will be set incorrectly. Let's instead decouple event creation from PMXEVTYPER and (re)create the event in either suitation. Signed-off-by: Andrew Murray <andrew.murray@arm.com> Reviewed-by: Julien Thierry <julien.thierry@arm.com> Reviewed-by: Suzuki K Poulose <suzuki.poulose@arm.com> Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Diffstat (limited to 'kernel/bpf/btf.c')
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