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authorEric W. Biederman <ebiederm@xmission.com>2018-03-23 05:30:56 +0300
committerEric W. Biederman <ebiederm@xmission.com>2018-03-23 05:30:56 +0300
commit1a5c1349d105df5196ad9025e271b02a4dc05aee (patch)
tree1269154b73e3821ce0815aca893280c03471fcdf /include/linux/sem.h
parentd8c6e8543294428426578d74dc7aaf121e762d58 (diff)
downloadlinux-1a5c1349d105df5196ad9025e271b02a4dc05aee.tar.xz
sem: Move struct sem and struct sem_array into ipc/sem.c
All of the users are now in ipc/sem.c so make the definitions local to that file to make code maintenance easier. AKA to prevent rebuilding the entire kernel when one of these files is changed. Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
Diffstat (limited to 'include/linux/sem.h')
-rw-r--r--include/linux/sem.h40
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