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Subject[PATCH v3 36/46] perf/core: add perf_event cgroup hooks for subsystem attributes
Date
Allow architectures to define additional attributes for the perf cgroup.

Signed-off-by: David Carrillo-Cisneros <davidcc@google.com>
---
include/linux/perf_event.h | 4 ++++
kernel/events/core.c | 2 ++
2 files changed, 6 insertions(+)

diff --git a/include/linux/perf_event.h b/include/linux/perf_event.h
index 3b1d542..26e6ee3 100644
--- a/include/linux/perf_event.h
+++ b/include/linux/perf_event.h
@@ -1412,4 +1412,8 @@ int perf_event_exit_cpu(unsigned int cpu);
# define perf_cgroup_arch_css_offline(css) do { } while (0)
#endif

+#ifndef PERF_CGROUP_ARCH_CGRP_SUBSYS_ATTS
+#define PERF_CGROUP_ARCH_CGRP_SUBSYS_ATTS
+#endif
+
#endif /* _LINUX_PERF_EVENT_H */
diff --git a/kernel/events/core.c b/kernel/events/core.c
index 4f43c75..b6ca765 100644
--- a/kernel/events/core.c
+++ b/kernel/events/core.c
@@ -10849,5 +10849,7 @@ struct cgroup_subsys perf_event_cgrp_subsys = {
.css_offline = perf_cgroup_css_offline,
.css_free = perf_cgroup_css_free,
.attach = perf_cgroup_attach,
+ /* Expand architecture specific attributes. */
+ PERF_CGROUP_ARCH_CGRP_SUBSYS_ATTS
};
#endif /* CONFIG_CGROUP_PERF */
--
2.8.0.rc3.226.g39d4020
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