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Merge branch 'urgent' of git://git.kernel.org/pub/scm/linux/kernel/git/rric/oprofile into perf/urgent

This commit is contained in:
Ingo Molnar 2011-06-09 09:14:34 +02:00
parent 5cf42f7055 fe47ae7f53
commit 5f127133ee
2 changed files with 14 additions and 10 deletions
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21
drivers/oprofile/buffer_sync.c
View File

@ -141,6 +141,13 @@ static struct notifier_block module_load_nb = {
.notifier_call = module_load_notify,
};
static void free_all_tasks(void)
{
/* make sure we don't leak task structs */
process_task_mortuary();
process_task_mortuary();
}
int sync_start(void)
{
int err;
@ -148,8 +155,6 @@ int sync_start(void)
if (!zalloc_cpumask_var(&marked_cpus, GFP_KERNEL))
return -ENOMEM;
mutex_lock(&buffer_mutex);
err = task_handoff_register(&task_free_nb);
if (err)
goto out1;
@ -166,7 +171,6 @@ int sync_start(void)
start_cpu_work();
out:
mutex_unlock(&buffer_mutex);
return err;
out4:
profile_event_unregister(PROFILE_MUNMAP, &munmap_nb);
@ -174,6 +178,7 @@ int sync_start(void)
profile_event_unregister(PROFILE_TASK_EXIT, &task_exit_nb);
out2:
task_handoff_unregister(&task_free_nb);
free_all_tasks();
out1:
free_cpumask_var(marked_cpus);
goto out;
@ -182,20 +187,16 @@ int sync_start(void)
void sync_stop(void)
{
/* flush buffers */
mutex_lock(&buffer_mutex);
end_cpu_work();
unregister_module_notifier(&module_load_nb);
profile_event_unregister(PROFILE_MUNMAP, &munmap_nb);
profile_event_unregister(PROFILE_TASK_EXIT, &task_exit_nb);
task_handoff_unregister(&task_free_nb);
mutex_unlock(&buffer_mutex);
barrier(); /* do all of the above first */
flush_cpu_work();
/* make sure we don't leak task structs */
process_task_mortuary();
process_task_mortuary();
free_all_tasks();
free_cpumask_var(marked_cpus);
}

3
fs/dcookies.c
View File

@ -178,6 +178,8 @@ SYSCALL_DEFINE(lookup_dcookie)(u64 cookie64, char __user * buf, size_t len)
/* FIXME: (deleted) ? */
path = d_path(&dcs->path, kbuf, PAGE_SIZE);
mutex_unlock(&dcookie_mutex);
if (IS_ERR(path)) {
err = PTR_ERR(path);
goto out_free;
@ -194,6 +196,7 @@ SYSCALL_DEFINE(lookup_dcookie)(u64 cookie64, char __user * buf, size_t len)
out_free:
kfree(kbuf);
return err;
out:
mutex_unlock(&dcookie_mutex);
return err;