diff options
Diffstat (limited to 'module')
| -rw-r--r-- | module/sysprof-module.c | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/module/sysprof-module.c b/module/sysprof-module.c index 0ab68dc..d4f30b4 100644 --- a/module/sysprof-module.c +++ b/module/sysprof-module.c @@ -107,7 +107,7 @@ read_frame (void *frame_pointer, StackFrame *frame) return 0; } -DEFINE_PER_CPU (int, n_samples); +DEFINE_PER_CPU(int, n_samples); #ifdef OLD_PROFILE static int timer_notify(struct notifier_block * self, unsigned long val, void * data) @@ -127,12 +127,12 @@ timer_notify (struct pt_regs *regs) int result; static atomic_t in_timer_notify = ATOMIC_INIT(1); - /* 0: locked, 1: unlocked */ - if (((++get_cpu_var(n_samples)) % INTERVAL) != 0) return 0; - if (!atomic_dec_and_test (&in_timer_notify)) + /* 0: locked, 1: unlocked */ + + if (!atomic_dec_and_test(&in_timer_notify)) goto out; is_user = user_mode(regs); @@ -179,7 +179,7 @@ timer_notify (struct pt_regs *regs) wake_up (&wait_for_trace); out: - atomic_inc (&in_timer_notify); + atomic_inc(&in_timer_notify); return 0; } |