perf: Better fit max unprivileged mlock pages for tools needs

[karo-tx-linux.git] / kernel / perf_event.c

diff --git a/kernel/perf_event.c b/kernel/perf_event.c
index 183d437f4a0fb7c5ad96ad82ae3f6d28333e52e1..fc5ab8e444f03a4447371864e5b5c103975d5af0 100644 (file)
--- a/kernel/perf_event.c
+++ b/kernel/perf_event.c
@@ -69,7 +69,8 @@ static inline bool perf_paranoid_kernel(void)
        return sysctl_perf_event_paranoid > 1;
 }
 
-int sysctl_perf_event_mlock __read_mostly = 512; /* 'free' kb per user */
+/* Minimum for 128 pages + 1 for the user control page */
+int sysctl_perf_event_mlock __read_mostly = 516; /* 'free' kb per user */
 
 /*
  * max perf event sample rate