mirror of
https://mirrors.bfsu.edu.cn/git/linux.git
synced 2024-11-17 01:04:19 +08:00
325ea10c08
Do the following cleanups and simplifications: - sched/sched.h already includes <asm/paravirt.h>, so no need to include it in sched/core.c again. - order the <linux/sched/*.h> headers alphabetically - add all <linux/sched/*.h> headers to kernel/sched/sched.h - remove all unnecessary includes from the .c files that are already included in kernel/sched/sched.h. Finally, make all scheduler .c files use a single common header: #include "sched.h" ... which now contains a union of the relied upon headers. This makes the various .c files easier to read and easier to handle. Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Mike Galbraith <efault@gmx.de> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: linux-kernel@vger.kernel.org Signed-off-by: Ingo Molnar <mingo@kernel.org>
61 lines
1.4 KiB
C
61 lines
1.4 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
|
|
#ifdef CONFIG_SCHED_AUTOGROUP
|
|
|
|
struct autogroup {
|
|
/*
|
|
* Reference doesn't mean how many threads attach to this
|
|
* autogroup now. It just stands for the number of tasks
|
|
* which could use this autogroup.
|
|
*/
|
|
struct kref kref;
|
|
struct task_group *tg;
|
|
struct rw_semaphore lock;
|
|
unsigned long id;
|
|
int nice;
|
|
};
|
|
|
|
extern void autogroup_init(struct task_struct *init_task);
|
|
extern void autogroup_free(struct task_group *tg);
|
|
|
|
static inline bool task_group_is_autogroup(struct task_group *tg)
|
|
{
|
|
return !!tg->autogroup;
|
|
}
|
|
|
|
extern bool task_wants_autogroup(struct task_struct *p, struct task_group *tg);
|
|
|
|
static inline struct task_group *
|
|
autogroup_task_group(struct task_struct *p, struct task_group *tg)
|
|
{
|
|
int enabled = READ_ONCE(sysctl_sched_autogroup_enabled);
|
|
|
|
if (enabled && task_wants_autogroup(p, tg))
|
|
return p->signal->autogroup->tg;
|
|
|
|
return tg;
|
|
}
|
|
|
|
extern int autogroup_path(struct task_group *tg, char *buf, int buflen);
|
|
|
|
#else /* !CONFIG_SCHED_AUTOGROUP */
|
|
|
|
static inline void autogroup_init(struct task_struct *init_task) { }
|
|
static inline void autogroup_free(struct task_group *tg) { }
|
|
static inline bool task_group_is_autogroup(struct task_group *tg)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
static inline struct task_group *
|
|
autogroup_task_group(struct task_struct *p, struct task_group *tg)
|
|
{
|
|
return tg;
|
|
}
|
|
|
|
static inline int autogroup_path(struct task_group *tg, char *buf, int buflen)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
#endif /* CONFIG_SCHED_AUTOGROUP */
|