diff options
Diffstat (limited to 'kernel/profile.c')
| -rw-r--r-- | kernel/profile.c | 11 |
1 files changed, 6 insertions, 5 deletions
diff --git a/kernel/profile.c b/kernel/profile.c index f89248e6d70..ad81f799a9b 100644 --- a/kernel/profile.c +++ b/kernel/profile.c @@ -23,6 +23,7 @@ #include <linux/cpu.h> #include <linux/profile.h> #include <linux/highmem.h> +#include <linux/mutex.h> #include <asm/sections.h> #include <asm/semaphore.h> @@ -44,7 +45,7 @@ static cpumask_t prof_cpu_mask = CPU_MASK_ALL; #ifdef CONFIG_SMP static DEFINE_PER_CPU(struct profile_hit *[2], cpu_profile_hits); static DEFINE_PER_CPU(int, cpu_profile_flip); -static DECLARE_MUTEX(profile_flip_mutex); +static DEFINE_MUTEX(profile_flip_mutex); #endif /* CONFIG_SMP */ static int __init profile_setup(char * str) @@ -243,7 +244,7 @@ static void profile_flip_buffers(void) { int i, j, cpu; - down(&profile_flip_mutex); + mutex_lock(&profile_flip_mutex); j = per_cpu(cpu_profile_flip, get_cpu()); put_cpu(); on_each_cpu(__profile_flip_buffers, NULL, 0, 1); @@ -259,14 +260,14 @@ static void profile_flip_buffers(void) hits[i].hits = hits[i].pc = 0; } } - up(&profile_flip_mutex); + mutex_unlock(&profile_flip_mutex); } static void profile_discard_flip_buffers(void) { int i, cpu; - down(&profile_flip_mutex); + mutex_lock(&profile_flip_mutex); i = per_cpu(cpu_profile_flip, get_cpu()); put_cpu(); on_each_cpu(__profile_flip_buffers, NULL, 0, 1); @@ -274,7 +275,7 @@ static void profile_discard_flip_buffers(void) struct profile_hit *hits = per_cpu(cpu_profile_hits, cpu)[i]; memset(hits, 0, NR_PROFILE_HIT*sizeof(struct profile_hit)); } - up(&profile_flip_mutex); + mutex_unlock(&profile_flip_mutex); } void profile_hit(int type, void *__pc) |