diff options
| -rw-r--r-- | kernel/events/callchain.c | 5 | ||||
| -rw-r--r-- | kernel/sysctl.c | 2 |
2 files changed, 4 insertions, 3 deletions
diff --git a/kernel/events/callchain.c b/kernel/events/callchain.c index b9325e7dcba1..7fc89939ede9 100644 --- a/kernel/events/callchain.c +++ b/kernel/events/callchain.c @@ -228,7 +228,8 @@ exit_put: int perf_event_max_stack_handler(struct ctl_table *table, int write, void __user *buffer, size_t *lenp, loff_t *ppos) { - int new_value = sysctl_perf_event_max_stack, ret; + int *value = table->data; + int new_value = *value, ret; struct ctl_table new_table = *table; new_table.data = &new_value; @@ -240,7 +241,7 @@ int perf_event_max_stack_handler(struct ctl_table *table, int write, if (atomic_read(&nr_callchain_events)) ret = -EBUSY; else - sysctl_perf_event_max_stack = new_value; + *value = new_value; mutex_unlock(&callchain_mutex); diff --git a/kernel/sysctl.c b/kernel/sysctl.c index c8b318663525..0ec6907a16b3 100644 --- a/kernel/sysctl.c +++ b/kernel/sysctl.c @@ -1149,7 +1149,7 @@ static struct ctl_table kern_table[] = { }, { .procname = "perf_event_max_stack", - .data = NULL, /* filled in by handler */ + .data = &sysctl_perf_event_max_stack, .maxlen = sizeof(sysctl_perf_event_max_stack), .mode = 0644, .proc_handler = perf_event_max_stack_handler, |