diff options
Diffstat (limited to 'drivers/oprofile/buffer_sync.c')
-rw-r--r-- | drivers/oprofile/buffer_sync.c | 20 |
1 files changed, 6 insertions, 14 deletions
diff --git a/drivers/oprofile/buffer_sync.c b/drivers/oprofile/buffer_sync.c index c3ea5fa7d05a..8574622e36a5 100644 --- a/drivers/oprofile/buffer_sync.c +++ b/drivers/oprofile/buffer_sync.c | |||
@@ -154,6 +154,10 @@ int sync_start(void) | |||
154 | { | 154 | { |
155 | int err; | 155 | int err; |
156 | 156 | ||
157 | if (!alloc_cpumask_var(&marked_cpus, GFP_KERNEL)) | ||
158 | return -ENOMEM; | ||
159 | cpumask_clear(marked_cpus); | ||
160 | |||
157 | start_cpu_work(); | 161 | start_cpu_work(); |
158 | 162 | ||
159 | err = task_handoff_register(&task_free_nb); | 163 | err = task_handoff_register(&task_free_nb); |
@@ -179,6 +183,7 @@ out2: | |||
179 | task_handoff_unregister(&task_free_nb); | 183 | task_handoff_unregister(&task_free_nb); |
180 | out1: | 184 | out1: |
181 | end_sync(); | 185 | end_sync(); |
186 | free_cpumask_var(marked_cpus); | ||
182 | goto out; | 187 | goto out; |
183 | } | 188 | } |
184 | 189 | ||
@@ -190,6 +195,7 @@ void sync_stop(void) | |||
190 | profile_event_unregister(PROFILE_TASK_EXIT, &task_exit_nb); | 195 | profile_event_unregister(PROFILE_TASK_EXIT, &task_exit_nb); |
191 | task_handoff_unregister(&task_free_nb); | 196 | task_handoff_unregister(&task_free_nb); |
192 | end_sync(); | 197 | end_sync(); |
198 | free_cpumask_var(marked_cpus); | ||
193 | } | 199 | } |
194 | 200 | ||
195 | 201 | ||
@@ -565,20 +571,6 @@ void sync_buffer(int cpu) | |||
565 | mutex_unlock(&buffer_mutex); | 571 | mutex_unlock(&buffer_mutex); |
566 | } | 572 | } |
567 | 573 | ||
568 | int __init buffer_sync_init(void) | ||
569 | { | ||
570 | if (!alloc_cpumask_var(&marked_cpus, GFP_KERNEL)) | ||
571 | return -ENOMEM; | ||
572 | |||
573 | cpumask_clear(marked_cpus); | ||
574 | return 0; | ||
575 | } | ||
576 | |||
577 | void __exit buffer_sync_cleanup(void) | ||
578 | { | ||
579 | free_cpumask_var(marked_cpus); | ||
580 | } | ||
581 | |||
582 | /* The function can be used to add a buffer worth of data directly to | 574 | /* The function can be used to add a buffer worth of data directly to |
583 | * the kernel buffer. The buffer is assumed to be a circular buffer. | 575 | * the kernel buffer. The buffer is assumed to be a circular buffer. |
584 | * Take the entries from index start and end at index end, wrapping | 576 | * Take the entries from index start and end at index end, wrapping |