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Diffstat (limited to 'include/linux/percpu_counter.h')
-rw-r--r--include/linux/percpu_counter.h18
1 files changed, 6 insertions, 12 deletions
diff --git a/include/linux/percpu_counter.h b/include/linux/percpu_counter.h
index f5aa593ccf32..3d9f70972cdf 100644
--- a/include/linux/percpu_counter.h
+++ b/include/linux/percpu_counter.h
@@ -8,6 +8,7 @@
8 8
9#include <linux/spinlock.h> 9#include <linux/spinlock.h>
10#include <linux/smp.h> 10#include <linux/smp.h>
11#include <linux/list.h>
11#include <linux/threads.h> 12#include <linux/threads.h>
12#include <linux/percpu.h> 13#include <linux/percpu.h>
13#include <linux/types.h> 14#include <linux/types.h>
@@ -17,6 +18,9 @@
17struct percpu_counter { 18struct percpu_counter {
18 spinlock_t lock; 19 spinlock_t lock;
19 s64 count; 20 s64 count;
21#ifdef CONFIG_HOTPLUG_CPU
22 struct list_head list; /* All percpu_counters are on a list */
23#endif
20 s32 *counters; 24 s32 *counters;
21}; 25};
22 26
@@ -26,18 +30,8 @@ struct percpu_counter {
26#define FBC_BATCH (NR_CPUS*4) 30#define FBC_BATCH (NR_CPUS*4)
27#endif 31#endif
28 32
29static inline void percpu_counter_init(struct percpu_counter *fbc, s64 amount) 33void percpu_counter_init(struct percpu_counter *fbc, s64 amount);
30{ 34void percpu_counter_destroy(struct percpu_counter *fbc);
31 spin_lock_init(&fbc->lock);
32 fbc->count = amount;
33 fbc->counters = alloc_percpu(s32);
34}
35
36static inline void percpu_counter_destroy(struct percpu_counter *fbc)
37{
38 free_percpu(fbc->counters);
39}
40
41void percpu_counter_mod(struct percpu_counter *fbc, s32 amount); 35void percpu_counter_mod(struct percpu_counter *fbc, s32 amount);
42s64 percpu_counter_sum(struct percpu_counter *fbc); 36s64 percpu_counter_sum(struct percpu_counter *fbc);
43 37