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authorDavid S. Miller <davem@davemloft.net>2009-03-29 01:40:34 -0700
committerDavid S. Miller <davem@davemloft.net>2009-03-29 01:40:34 -0700
commit13223cb02ccfa375f2d683d08d30db5b72264f1e (patch)
treed3fc7d803d22bbfe03b96cf0ba38041d42c8a1c2 /drivers/oprofile/buffer_sync.c
parent1383bdb98c01bbd28d72336d1bf614ce79114d29 (diff)
parent07d43ba98621f08e252a48c96b258b4d572b0257 (diff)
Merge branch 'master' of /home/davem/src/GIT/linux-2.6/
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 9da5a4b81133..c3ea5fa7d05a 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