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y2038: ipc: Use __kernel_timespec

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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>
This commit is contained in:
Arnd Bergmann
2018-04-13 13:58:00 +02:00
parent c2ab975c30
commit 21fc538d81
4 changed files with 9 additions and 9 deletions
Download Patch File Download Diff File Expand all files Collapse all files

6
ipc/mqueue.c
View File

@@ -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) {

4
ipc/sem.c
View File

@@ -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);
}

2
ipc/util.h
View File

@@ -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);