diff options
Diffstat (limited to 'include/linux/sem.h')
| -rw-r--r-- | include/linux/sem.h | 40 |
1 files changed, 1 insertions, 39 deletions
diff --git a/include/linux/sem.h b/include/linux/sem.h index 9badd322dcee..5608a500c43e 100644 --- a/include/linux/sem.h +++ b/include/linux/sem.h @@ -2,48 +2,10 @@ #ifndef _LINUX_SEM_H #define _LINUX_SEM_H -#include <linux/atomic.h> -#include <linux/rcupdate.h> -#include <linux/cache.h> -#include <linux/time64.h> #include <uapi/linux/sem.h> struct task_struct; - -/* One semaphore structure for each semaphore in the system. */ -struct sem { - int semval; /* current value */ - /* - * PID of the process that last modified the semaphore. For - * Linux, specifically these are: - * - semop - * - semctl, via SETVAL and SETALL. - * - at task exit when performing undo adjustments (see exit_sem). - */ - int sempid; - spinlock_t lock; /* spinlock for fine-grained semtimedop */ - struct list_head pending_alter; /* pending single-sop operations */ - /* that alter the semaphore */ - struct list_head pending_const; /* pending single-sop operations */ - /* that do not alter the semaphore*/ - time_t sem_otime; /* candidate for sem_otime */ -} ____cacheline_aligned_in_smp; - -/* One sem_array data structure for each set of semaphores in the system. */ -struct sem_array { - struct kern_ipc_perm sem_perm; /* permissions .. see ipc.h */ - time64_t sem_ctime; /* create/last semctl() time */ - 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 */ - unsigned int use_global_lock;/* >0: global lock required */ - - struct sem sems[]; -} __randomize_layout; +struct sem_undo_list; #ifdef CONFIG_SYSVIPC |