diff options
Diffstat (limited to 'kernel/profile.c')
| -rw-r--r-- | kernel/profile.c | 22 |
1 files changed, 11 insertions, 11 deletions
diff --git a/kernel/profile.c b/kernel/profile.c index 66f841b7fbd..961b389fe52 100644 --- a/kernel/profile.c +++ b/kernel/profile.c @@ -126,11 +126,9 @@ int __ref profile_init(void) if (prof_buffer) return 0; - prof_buffer = vmalloc(buffer_bytes); - if (prof_buffer) { - memset(prof_buffer, 0, buffer_bytes); + prof_buffer = vzalloc(buffer_bytes); + if (prof_buffer) return 0; - } free_cpumask_var(prof_cpu_mask); return -ENOMEM; @@ -305,14 +303,12 @@ static void profile_discard_flip_buffers(void) mutex_unlock(&profile_flip_mutex); } -void profile_hits(int type, void *__pc, unsigned int nr_hits) +static void do_profile_hits(int type, void *__pc, unsigned int nr_hits) { unsigned long primary, secondary, flags, pc = (unsigned long)__pc; int i, j, cpu; struct profile_hit *hits; - if (prof_on != type || !prof_buffer) - return; pc = min((pc - (unsigned long)_stext) >> prof_shift, prof_len - 1); i = primary = (pc & (NR_PROFILE_GRP - 1)) << PROFILE_GRPSHIFT; secondary = (~(pc << 1) & (NR_PROFILE_GRP - 1)) << PROFILE_GRPSHIFT; @@ -419,16 +415,20 @@ out_free: #define profile_discard_flip_buffers() do { } while (0) #define profile_cpu_callback NULL -void profile_hits(int type, void *__pc, unsigned int nr_hits) +static void do_profile_hits(int type, void *__pc, unsigned int nr_hits) { unsigned long pc; - - if (prof_on != type || !prof_buffer) - return; pc = ((unsigned long)__pc - (unsigned long)_stext) >> prof_shift; atomic_add(nr_hits, &prof_buffer[min(pc, prof_len - 1)]); } #endif /* !CONFIG_SMP */ + +void profile_hits(int type, void *__pc, unsigned int nr_hits) +{ + if (prof_on != type || !prof_buffer) + return; + do_profile_hits(type, __pc, nr_hits); +} EXPORT_SYMBOL_GPL(profile_hits); void profile_tick(int type) |