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authorIngo Molnar <mingo@elte.hu>2009-01-28 23:12:55 +0100
committerIngo Molnar <mingo@elte.hu>2009-01-28 23:12:55 +0100
commit6a385db5ce7f1fd2c68ec511e44587b67dab8fca (patch)
tree9324c8ae6f7be54b9fdbd6b60f759292aa727b1f /drivers/oprofile/buffer_sync.c
parent18e352e4a73465349711a9324767e1b2453383e2 (diff)
parent4369f1fb7cd4cf777312f43e1cb9aa5504fc4125 (diff)
Merge branch 'core/percpu' into x86/core
Conflicts: kernel/irq/handle.c
Diffstat (limited to 'drivers/oprofile/buffer_sync.c')
-rw-r--r--drivers/oprofile/buffer_sync.c22
1 files changed, 18 insertions, 4 deletions
diff --git a/drivers/oprofile/buffer_sync.c b/drivers/oprofile/buffer_sync.c
index 9da5a4b8113..c3ea5fa7d05 100644
--- a/drivers/oprofile/buffer_sync.c
+++ b/drivers/oprofile/buffer_sync.c
@@ -38,7 +38,7 @@
static LIST_HEAD(dying_tasks);
static LIST_HEAD(dead_tasks);
-static cpumask_t marked_cpus = CPU_MASK_NONE;
+static cpumask_var_t marked_cpus;
static DEFINE_SPINLOCK(task_mortuary);
static void process_task_mortuary(void);
@@ -456,10 +456,10 @@ static void mark_done(int cpu)
{
int i;
- cpu_set(cpu, marked_cpus);
+ cpumask_set_cpu(cpu, marked_cpus);
for_each_online_cpu(i) {
- if (!cpu_isset(i, marked_cpus))
+ if (!cpumask_test_cpu(i, marked_cpus))
return;
}
@@ -468,7 +468,7 @@ static void mark_done(int cpu)
*/
process_task_mortuary();
- cpus_clear(marked_cpus);
+ cpumask_clear(marked_cpus);
}
@@ -565,6 +565,20 @@ 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