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alistair23-linux
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cpumask: modifiy oprofile initialization 

Delta patch to f7df8ed164 for
tip/cpus4096.

Moved initialization to sync_start()/sync_stop(). No changes needed in
buffer_sync.h and oprof.c anymore.

Signed-off-by: Robert Richter <robert.richter@amd.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
hifive-unleashed-5.1
Robert Richter 2009-01-22 14:14:14 +01:00 committed by Ingo Molnar
parent 5766b842b2
commit 4c50d9ea9c
3 changed files with 7 additions and 26 deletions
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20
drivers/oprofile/buffer_sync.c
View File

@ -154,6 +154,10 @@ int sync_start(void)
{
int err;
if (!alloc_cpumask_var(&marked_cpus, GFP_KERNEL))
return -ENOMEM;
cpumask_clear(marked_cpus);
start_cpu_work();
err = task_handoff_register(&task_free_nb);
@ -179,6 +183,7 @@ out2:
task_handoff_unregister(&task_free_nb);
out1:
end_sync();
free_cpumask_var(marked_cpus);
goto out;
}
@ -190,6 +195,7 @@ void sync_stop(void)
profile_event_unregister(PROFILE_TASK_EXIT, &task_exit_nb);
task_handoff_unregister(&task_free_nb);
end_sync();
free_cpumask_var(marked_cpus);
}
@ -565,20 +571,6 @@ void sync_buffer(int cpu)
mutex_unlock(&buffer_mutex);
}
int __init buffer_sync_init(void)
{
if (!alloc_cpumask_var(&marked_cpus, GFP_KERNEL))
return -ENOMEM;
cpumask_clear(marked_cpus);
return 0;
}
void __exit buffer_sync_cleanup(void)
{
free_cpumask_var(marked_cpus);
}
/* The function can be used to add a buffer worth of data directly to
* the kernel buffer. The buffer is assumed to be a circular buffer.
* Take the entries from index start and end at index end, wrapping

4
drivers/oprofile/buffer_sync.h
View File

@ -19,8 +19,4 @@ void sync_stop(void);
/* sync the given CPU's buffer */
void sync_buffer(int cpu);
/* initialize/destroy the buffer system. */
int buffer_sync_init(void);
void buffer_sync_cleanup(void);
#endif /* OPROFILE_BUFFER_SYNC_H */

9
drivers/oprofile/oprof.c
View File

@ -183,10 +183,6 @@ static int __init oprofile_init(void)
{
int err;
err = buffer_sync_init();
if (err)
return err;
err = oprofile_arch_init(&oprofile_ops);
if (err < 0 || timer) {
@ -195,10 +191,8 @@ static int __init oprofile_init(void)
}
err = oprofilefs_register();
if (err) {
if (err)
oprofile_arch_exit();
buffer_sync_cleanup();
}
return err;
}
@ -208,7 +202,6 @@ static void __exit oprofile_exit(void)
{
oprofilefs_unregister();
oprofile_arch_exit();
buffer_sync_cleanup();
}