#include <linux/taskstats.h>
#include <linux/sched.h>
-
-enum {
- TASKSTATS_MSG_UNICAST, /* send data only to requester */
- TASKSTATS_MSG_MULTICAST, /* send data to a group */
-};
+#include <net/genetlink.h>
#ifdef CONFIG_TASKSTATS
extern kmem_cache_t *taskstats_cache;
extern struct mutex taskstats_exit_mutex;
-static inline void taskstats_exit_alloc(struct taskstats **ptidstats,
- struct taskstats **ptgidstats)
+static inline void taskstats_exit_free(struct taskstats *tidstats)
{
- *ptidstats = kmem_cache_zalloc(taskstats_cache, SLAB_KERNEL);
- *ptgidstats = kmem_cache_zalloc(taskstats_cache, SLAB_KERNEL);
+ if (tidstats)
+ kmem_cache_free(taskstats_cache, tidstats);
}
-static inline void taskstats_exit_free(struct taskstats *tidstats,
- struct taskstats *tgidstats)
+static inline void taskstats_tgid_init(struct signal_struct *sig)
{
- if (tidstats)
- kmem_cache_free(taskstats_cache, tidstats);
- if (tgidstats)
- kmem_cache_free(taskstats_cache, tgidstats);
+ spin_lock_init(&sig->stats_lock);
+ sig->stats = NULL;
}
-extern void taskstats_exit_send(struct task_struct *, struct taskstats *,
- struct taskstats *);
-extern void taskstats_init_early(void);
+static inline void taskstats_tgid_alloc(struct signal_struct *sig)
+{
+ struct taskstats *stats;
+ unsigned long flags;
+
+ stats = kmem_cache_zalloc(taskstats_cache, SLAB_KERNEL);
+ if (!stats)
+ return;
+ spin_lock_irqsave(&sig->stats_lock, flags);
+ if (!sig->stats) {
+ sig->stats = stats;
+ stats = NULL;
+ }
+ spin_unlock_irqrestore(&sig->stats_lock, flags);
+
+ if (stats)
+ kmem_cache_free(taskstats_cache, stats);
+}
+
+static inline void taskstats_tgid_free(struct signal_struct *sig)
+{
+ struct taskstats *stats = NULL;
+ unsigned long flags;
+
+ spin_lock_irqsave(&sig->stats_lock, flags);
+ if (sig->stats) {
+ stats = sig->stats;
+ sig->stats = NULL;
+ }
+ spin_unlock_irqrestore(&sig->stats_lock, flags);
+ if (stats)
+ kmem_cache_free(taskstats_cache, stats);
+}
+
+extern void taskstats_exit_alloc(struct taskstats **, unsigned int *);
+extern void taskstats_exit_send(struct task_struct *, struct taskstats *, int, unsigned int);
+extern void taskstats_init_early(void);
+extern void taskstats_tgid_alloc(struct signal_struct *);
#else
-static inline void taskstats_exit_alloc(struct taskstats **ptidstats,
- struct taskstats **ptgidstats)
+static inline void taskstats_exit_alloc(struct taskstats **ptidstats, unsigned int *mycpu)
{}
-static inline void taskstats_exit_free(struct taskstats *ptidstats,
- struct taskstats *ptgidstats)
+static inline void taskstats_exit_free(struct taskstats *ptidstats)
{}
static inline void taskstats_exit_send(struct task_struct *tsk,
- struct taskstats *tidstats,
- struct taskstats *tgidstats)
+ struct taskstats *tidstats,
+ int group_dead, unsigned int cpu)
+{}
+static inline void taskstats_tgid_init(struct signal_struct *sig)
+{}
+static inline void taskstats_tgid_alloc(struct signal_struct *sig)
+{}
+static inline void taskstats_tgid_free(struct signal_struct *sig)
{}
static inline void taskstats_init_early(void)
{}