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Subject[PATCH v4 6/9] powerpc/perf: open access for CAP_SYS_PERFMON privileged process
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Open access to monitoring for CAP_SYS_PERFMON privileged processes.
For backward compatibility reasons access to the monitoring remains open
for CAP_SYS_ADMIN privileged processes but CAP_SYS_ADMIN usage for secure
monitoring is discouraged with respect to CAP_SYS_PERFMON capability.

Signed-off-by: Alexey Budankov <alexey.budankov@linux.intel.com>
---
arch/powerpc/perf/imc-pmu.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/powerpc/perf/imc-pmu.c b/arch/powerpc/perf/imc-pmu.c
index cb50a9e1fd2d..e837717492e4 100644
--- a/arch/powerpc/perf/imc-pmu.c
+++ b/arch/powerpc/perf/imc-pmu.c
@@ -898,7 +898,7 @@ static int thread_imc_event_init(struct perf_event *event)
if (event->attr.type != event->pmu->type)
return -ENOENT;

- if (!capable(CAP_SYS_ADMIN))
+ if (!perfmon_capable())
return -EACCES;

/* Sampling not supported */
@@ -1307,7 +1307,7 @@ static int trace_imc_event_init(struct perf_event *event)
if (event->attr.type != event->pmu->type)
return -ENOENT;

- if (!capable(CAP_SYS_ADMIN))
+ if (!perfmon_capable())
return -EACCES;

/* Return if this is a couting event */
--
2.20.1

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