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authorPeter Zijlstra <a.p.zijlstra@chello.nl>2009-06-11 11:18:36 +0200
committerIngo Molnar <mingo@elte.hu>2009-06-11 16:48:38 +0200
commit0764771dab80d7b84b9a271bee7f1b21a04a3f0c (patch)
tree36cb6400e257393208779a95b4868df2f9af6cf6 /kernel/sysctl.c
parent106b506c3a8b74daa5751e83ed3e46438fcf9a52 (diff)
downloadop-kernel-dev-0764771dab80d7b84b9a271bee7f1b21a04a3f0c.zip
op-kernel-dev-0764771dab80d7b84b9a271bee7f1b21a04a3f0c.tar.gz
perf_counter: More paranoia settings
Rename the perf_counter_priv knob to perf_counter_paranoia (because priv can be read as private, as opposed to privileged) and provide one more level: 0 - permissive 1 - restrict cpu counters to privilidged contexts 2 - restrict kernel-mode code counting and profiling Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Arnaldo Carvalho de Melo <acme@redhat.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'kernel/sysctl.c')
-rw-r--r--kernel/sysctl.c6
1 files changed, 3 insertions, 3 deletions
diff --git a/kernel/sysctl.c b/kernel/sysctl.c
index 0c4bf86..344a659 100644
--- a/kernel/sysctl.c
+++ b/kernel/sysctl.c
@@ -916,9 +916,9 @@ static struct ctl_table kern_table[] = {
#ifdef CONFIG_PERF_COUNTERS
{
.ctl_name = CTL_UNNUMBERED,
- .procname = "perf_counter_privileged",
- .data = &sysctl_perf_counter_priv,
- .maxlen = sizeof(sysctl_perf_counter_priv),
+ .procname = "perf_counter_paranoid",
+ .data = &sysctl_perf_counter_paranoid,
+ .maxlen = sizeof(sysctl_perf_counter_paranoid),
.mode = 0644,
.proc_handler = &proc_dointvec,
},
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