y2038: ipc: Use __kernel_timespec

This is a preparatation for changing over __kernel_timespec to 64-bit
times, which involves assigning new system call numbers for mq_timedsend(),
mq_timedreceive() and semtimedop() for compatibility with future y2038
proof user space.

The existing ABIs will remain available through compat code.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>

diff --git a/include/linux/syscalls.h b/include/linux/syscalls.h
index c9a2a26..b92cb79 100644 (file)
--- a/include/linux/syscalls.h
+++ b/include/linux/syscalls.h
@@ -680,8 +680,8 @@ asmlinkage long sys_sysinfo(struct sysinfo __user *info);
 /* ipc/mqueue.c */
 asmlinkage long sys_mq_open(const char __user *name, int oflag, umode_t mode, struct mq_attr __user *attr);
 asmlinkage long sys_mq_unlink(const char __user *name);
-asmlinkage long sys_mq_timedsend(mqd_t mqdes, const char __user *msg_ptr, size_t msg_len, unsigned int msg_prio, const struct timespec __user *abs_timeout);
-asmlinkage long sys_mq_timedreceive(mqd_t mqdes, char __user *msg_ptr, size_t msg_len, unsigned int __user *msg_prio, const struct timespec __user *abs_timeout);
+asmlinkage long sys_mq_timedsend(mqd_t mqdes, const char __user *msg_ptr, size_t msg_len, unsigned int msg_prio, const struct __kernel_timespec __user *abs_timeout);
+asmlinkage long sys_mq_timedreceive(mqd_t mqdes, char __user *msg_ptr, size_t msg_len, unsigned int __user *msg_prio, const struct __kernel_timespec __user *abs_timeout);
 asmlinkage long sys_mq_notify(mqd_t mqdes, const struct sigevent __user *notification);
 asmlinkage long sys_mq_getsetattr(mqd_t mqdes, const struct mq_attr __user *mqstat, struct mq_attr __user *omqstat);
 
@@ -698,7 +698,7 @@ asmlinkage long sys_semget(key_t key, int nsems, int semflg);
 asmlinkage long sys_semctl(int semid, int semnum, int cmd, unsigned long arg);
 asmlinkage long sys_semtimedop(int semid, struct sembuf __user *sops,
                                unsigned nsops,
-                               const struct timespec __user *timeout);
+                               const struct __kernel_timespec __user *timeout);
 asmlinkage long sys_semop(int semid, struct sembuf __user *sops,
                                unsigned nsops);
 

diff --git a/ipc/mqueue.c b/ipc/mqueue.c
index a808f29..9610afc 100644 (file)
--- a/ipc/mqueue.c
+++ b/ipc/mqueue.c
@@ -691,7 +691,7 @@ static void __do_notify(struct mqueue_inode_info *info)
        wake_up(&info->wait_q);
 }
 
-static int prepare_timeout(const struct timespec __user *u_abs_timeout,
+static int prepare_timeout(const struct __kernel_timespec __user *u_abs_timeout,
                           struct timespec64 *ts)
 {
        if (get_timespec64(ts, u_abs_timeout))
@@ -1128,7 +1128,7 @@ out:
 
 SYSCALL_DEFINE5(mq_timedsend, mqd_t, mqdes, const char __user *, u_msg_ptr,
                size_t, msg_len, unsigned int, msg_prio,
-               const struct timespec __user *, u_abs_timeout)
+               const struct __kernel_timespec __user *, u_abs_timeout)
 {
        struct timespec64 ts, *p = NULL;
        if (u_abs_timeout) {
@@ -1142,7 +1142,7 @@ SYSCALL_DEFINE5(mq_timedsend, mqd_t, mqdes, const char __user *, u_msg_ptr,
 
 SYSCALL_DEFINE5(mq_timedreceive, mqd_t, mqdes, char __user *, u_msg_ptr,
                size_t, msg_len, unsigned int __user *, u_msg_prio,
-               const struct timespec __user *, u_abs_timeout)
+               const struct __kernel_timespec __user *, u_abs_timeout)
 {
        struct timespec64 ts, *p = NULL;
        if (u_abs_timeout) {

diff --git a/ipc/sem.c b/ipc/sem.c
index 8935cd8..b951e25 100644 (file)
--- a/ipc/sem.c
+++ b/ipc/sem.c
@@ -2176,7 +2176,7 @@ out_free:
 }
 
 long ksys_semtimedop(int semid, struct sembuf __user *tsops,
-                    unsigned int nsops, const struct timespec __user *timeout)
+                    unsigned int nsops, const struct __kernel_timespec __user *timeout)
 {
        if (timeout) {
                struct timespec64 ts;
@@ -2188,7 +2188,7 @@ long ksys_semtimedop(int semid, struct sembuf __user *tsops,
 }
 
 SYSCALL_DEFINE4(semtimedop, int, semid, struct sembuf __user *, tsops,
-               unsigned int, nsops, const struct timespec __user *, timeout)
+               unsigned int, nsops, const struct __kernel_timespec __user *, timeout)
 {
        return ksys_semtimedop(semid, tsops, nsops, timeout);
 }

diff --git a/ipc/util.h b/ipc/util.h
index acc5159..975c6de 100644 (file)
--- a/ipc/util.h
+++ b/ipc/util.h
@@ -251,7 +251,7 @@ static inline int compat_ipc_parse_version(int *cmd)
 /* for __ARCH_WANT_SYS_IPC */
 long ksys_semtimedop(int semid, struct sembuf __user *tsops,
                     unsigned int nsops,
-                    const struct timespec __user *timeout);
+                    const struct __kernel_timespec __user *timeout);
 long ksys_semget(key_t key, int nsems, int semflg);
 long ksys_semctl(int semid, int semnum, int cmd, unsigned long arg);
 long ksys_msgget(key_t key, int msgflg);