https://github.com/torvalds/linux
- HEAD
- refs/heads/arm64-uaccess
- refs/heads/dependabot/pip/drivers/gpu/drm/ci/xfails/certifi-2024.7.4
- refs/heads/dependabot/pip/drivers/gpu/drm/ci/xfails/idna-3.7
- refs/heads/dependabot/pip/drivers/gpu/drm/ci/xfails/requests-2.32.2
- refs/heads/dependabot/pip/drivers/gpu/drm/ci/xfails/setuptools-70.0.0
- refs/heads/dependabot/pip/drivers/gpu/drm/ci/xfails/urllib3-2.2.2
- refs/heads/master
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Tip revision: 6ce4eac1f600b34f2f7f58f9cd8f0503d79e42ae authored by Linus Torvalds on 22 November 2013, 19:30:55 UTC
Linux 3.13-rc1
Linux 3.13-rc1
Tip revision: 6ce4eac
sem.h
#ifndef _LINUX_SEM_H
#define _LINUX_SEM_H
#include <linux/atomic.h>
#include <linux/rcupdate.h>
#include <linux/cache.h>
#include <uapi/linux/sem.h>
struct task_struct;
/* One sem_array data structure for each set of semaphores in the system. */
struct sem_array {
struct kern_ipc_perm ____cacheline_aligned_in_smp
sem_perm; /* permissions .. see ipc.h */
time_t sem_ctime; /* last change time */
struct sem *sem_base; /* ptr to first semaphore in array */
struct list_head pending_alter; /* pending operations */
/* that alter the array */
struct list_head pending_const; /* pending complex operations */
/* that do not alter semvals */
struct list_head list_id; /* undo requests on this array */
int sem_nsems; /* no. of semaphores in array */
int complex_count; /* pending complex operations */
};
#ifdef CONFIG_SYSVIPC
struct sysv_sem {
struct sem_undo_list *undo_list;
};
extern int copy_semundo(unsigned long clone_flags, struct task_struct *tsk);
extern void exit_sem(struct task_struct *tsk);
#else
struct sysv_sem {
/* empty */
};
static inline int copy_semundo(unsigned long clone_flags, struct task_struct *tsk)
{
return 0;
}
static inline void exit_sem(struct task_struct *tsk)
{
return;
}
#endif
#endif /* _LINUX_SEM_H */