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Diffstat (limited to 'include/linux/taskstats_kern.h')
-rw-r--r--include/linux/taskstats_kern.h27
1 files changed, 4 insertions, 23 deletions
diff --git a/include/linux/taskstats_kern.h b/include/linux/taskstats_kern.h
index 2b6adec3a2e4..16894b7edcc8 100644
--- a/include/linux/taskstats_kern.h
+++ b/include/linux/taskstats_kern.h
@@ -11,30 +11,10 @@
11#include <linux/sched.h> 11#include <linux/sched.h>
12#include <net/genetlink.h> 12#include <net/genetlink.h>
13 13
14enum {
15 TASKSTATS_MSG_UNICAST, /* send data only to requester */
16 TASKSTATS_MSG_MULTICAST, /* send data to a group */
17};
18
19#ifdef CONFIG_TASKSTATS 14#ifdef CONFIG_TASKSTATS
20extern kmem_cache_t *taskstats_cache; 15extern kmem_cache_t *taskstats_cache;
21extern struct mutex taskstats_exit_mutex; 16extern struct mutex taskstats_exit_mutex;
22 17
23static inline int taskstats_has_listeners(void)
24{
25 if (!genl_sock)
26 return 0;
27 return netlink_has_listeners(genl_sock, TASKSTATS_LISTEN_GROUP);
28}
29
30
31static inline void taskstats_exit_alloc(struct taskstats **ptidstats)
32{
33 *ptidstats = NULL;
34 if (taskstats_has_listeners())
35 *ptidstats = kmem_cache_zalloc(taskstats_cache, SLAB_KERNEL);
36}
37
38static inline void taskstats_exit_free(struct taskstats *tidstats) 18static inline void taskstats_exit_free(struct taskstats *tidstats)
39{ 19{
40 if (tidstats) 20 if (tidstats)
@@ -82,17 +62,18 @@ static inline void taskstats_tgid_free(struct signal_struct *sig)
82 kmem_cache_free(taskstats_cache, stats); 62 kmem_cache_free(taskstats_cache, stats);
83} 63}
84 64
85extern void taskstats_exit_send(struct task_struct *, struct taskstats *, int); 65extern void taskstats_exit_alloc(struct taskstats **, unsigned int *);
66extern void taskstats_exit_send(struct task_struct *, struct taskstats *, int, unsigned int);
86extern void taskstats_init_early(void); 67extern void taskstats_init_early(void);
87extern void taskstats_tgid_alloc(struct signal_struct *); 68extern void taskstats_tgid_alloc(struct signal_struct *);
88#else 69#else
89static inline void taskstats_exit_alloc(struct taskstats **ptidstats) 70static inline void taskstats_exit_alloc(struct taskstats **ptidstats, unsigned int *mycpu)
90{} 71{}
91static inline void taskstats_exit_free(struct taskstats *ptidstats) 72static inline void taskstats_exit_free(struct taskstats *ptidstats)
92{} 73{}
93static inline void taskstats_exit_send(struct task_struct *tsk, 74static inline void taskstats_exit_send(struct task_struct *tsk,
94 struct taskstats *tidstats, 75 struct taskstats *tidstats,
95 int group_dead) 76 int group_dead, unsigned int cpu)
96{} 77{}
97static inline void taskstats_tgid_init(struct signal_struct *sig) 78static inline void taskstats_tgid_init(struct signal_struct *sig)
98{} 79{}