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s390/cpum_sf: Use sf_buffer_available()

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Use sf_buffer_available() consistently throughtout the code
to test for the existence of sampling buffer.
No functional change.

Signed-off-by: Thomas Richter <tmricht@linux.ibm.com>
Reviewed-by: Hendrik Brueckner <brueckner@linux.ibm.com>
Reviewed-by: Sumanth Korikkar <sumanthk@linux.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
This commit is contained in:
Thomas Richter
2024-10-24 13:33:55 +02:00
committed by Heiko Carstens
parent de6d22ccdc
commit f2e9d46ac6
1 changed files with 2 additions and 2 deletions
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4
arch/s390/kernel/perf_cpum_sf.c
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@@ -404,7 +404,7 @@ static void sfb_init_allocs(unsigned long num, struct hw_perf_event *hwc)
static void deallocate_buffers(struct cpu_hw_sf *cpuhw)
{
if (cpuhw->sfb.sdbt)
if (sf_buffer_available(cpuhw))
free_sampling_buffer(&cpuhw->sfb);
}
@@ -1793,7 +1793,7 @@ static int cpumsf_pmu_add(struct perf_event *event, int flags)
if (cpuhw->flags & PMU_F_IN_USE)
return -EAGAIN;
if (!SAMPL_DIAG_MODE(&event->hw) && !cpuhw->sfb.sdbt)
if (!SAMPL_DIAG_MODE(&event->hw) && !sf_buffer_available(cpuhw))
return -EINVAL;
perf_pmu_disable(event->pmu);