So that we ensure we allow 129 pages, even if the page size is different than 4096.
Reported-by: Peter Zijlstra <[email protected]> Signed-off-by: Frederic Weisbecker <[email protected]> Cc: Stable <[email protected]> Cc: Ingo Molnar <[email protected]> Cc: Arnaldo Carvalho de Melo <[email protected]> Cc: Paul Mackerras <[email protected]> Cc: Stephane Eranian <[email protected]> --- kernel/perf_event.c | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-) diff --git a/kernel/perf_event.c b/kernel/perf_event.c index c75925c..fce1b8a 100644 --- a/kernel/perf_event.c +++ b/kernel/perf_event.c @@ -146,7 +146,7 @@ static struct srcu_struct pmus_srcu; int sysctl_perf_event_paranoid __read_mostly = 1; /* Minimum for 128 pages + 1 for the user control page */ -int sysctl_perf_event_mlock __read_mostly = 516; /* 'free' kb per user */ +int sysctl_perf_event_mlock __read_mostly = (129 * PAGE_SIZE) / 1024; /* 'free' kb per user */ /* * max perf event sample rate -- 1.7.3.2 _______________________________________________ stable mailing list [email protected] http://linux.kernel.org/mailman/listinfo/stable
