perf core: Separate accounting of contexts and real addresses in a stack trace

[deliverable/linux.git] / kernel / sysctl.c

diff --git a/kernel/sysctl.c b/kernel/sysctl.c
index 0ec6907a16b317409c56a14ca1a53f706b4a1af9..bec4c11c47d64251717e811e43bc4e18f76bc9f5 100644 (file)
--- a/kernel/sysctl.c
+++ b/kernel/sysctl.c
@@ -1156,6 +1156,15 @@ static struct ctl_table kern_table[] = {
                .extra1         = &zero,
                .extra2         = &six_hundred_forty_kb,
        },
+       {
+               .procname       = "perf_event_max_contexts_per_stack",
+               .data           = &sysctl_perf_event_max_contexts_per_stack,
+               .maxlen         = sizeof(sysctl_perf_event_max_contexts_per_stack),
+               .mode           = 0644,
+               .proc_handler   = perf_event_max_stack_handler,
+               .extra1         = &zero,
+               .extra2         = &one_thousand,
+       },
 #endif
 #ifdef CONFIG_KMEMCHECK
        {