mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson
synced 2025-10-26 05:15:31 +00:00
34ec12349c
Allocate ->signal->stats on demand in taskstats_exit(), this allows us to remove taskstats_tgid_alloc() (the last non-trivial inline) from taskstat's public interface. Signed-off-by: Oleg Nesterov <oleg@tv-sign.ru> Cc: Balbir Singh <balbir@in.ibm.com> Cc: Shailabh Nagar <nagar@watson.ibm.com> Cc: Jay Lan <jlan@engr.sgi.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
44 lines
1.0 KiB
C
44 lines
1.0 KiB
C
/* taskstats_kern.h - kernel header for per-task statistics interface
|
|
*
|
|
* Copyright (C) Shailabh Nagar, IBM Corp. 2006
|
|
* (C) Balbir Singh, IBM Corp. 2006
|
|
*/
|
|
|
|
#ifndef _LINUX_TASKSTATS_KERN_H
|
|
#define _LINUX_TASKSTATS_KERN_H
|
|
|
|
#include <linux/taskstats.h>
|
|
#include <linux/sched.h>
|
|
#include <net/genetlink.h>
|
|
|
|
#ifdef CONFIG_TASKSTATS
|
|
extern struct kmem_cache *taskstats_cache;
|
|
extern struct mutex taskstats_exit_mutex;
|
|
|
|
static inline void taskstats_tgid_init(struct signal_struct *sig)
|
|
{
|
|
sig->stats = NULL;
|
|
}
|
|
|
|
static inline void taskstats_tgid_free(struct signal_struct *sig)
|
|
{
|
|
if (sig->stats)
|
|
kmem_cache_free(taskstats_cache, sig->stats);
|
|
}
|
|
|
|
extern void taskstats_exit(struct task_struct *, int group_dead);
|
|
extern void taskstats_init_early(void);
|
|
#else
|
|
static inline void taskstats_exit(struct task_struct *tsk, int group_dead)
|
|
{}
|
|
static inline void taskstats_tgid_init(struct signal_struct *sig)
|
|
{}
|
|
static inline void taskstats_tgid_free(struct signal_struct *sig)
|
|
{}
|
|
static inline void taskstats_init_early(void)
|
|
{}
|
|
#endif /* CONFIG_TASKSTATS */
|
|
|
|
#endif
|
|
|