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Message-Id: <1430929826-318934-15-git-send-email-arnd@arndb.de>
Date: Wed, 6 May 2015 18:30:21 +0200
From: Arnd Bergmann <arnd@...db.de>
To: y2038@...ts.linaro.org
Cc: baolin.wang@...aro.org, tglx@...utronix.de,
albert.aribaud@...ev.fr, john.stultz@...aro.org,
bamvor.zhangjian@...aro.org, ruchandani.tina@...il.com,
linux-api@...r.kernel.org, linux-kernel@...r.kernel.org,
libc-alpha@...rceware.org, Arnd Bergmann <arnd@...db.de>
Subject: [PATCH 14/19] y2038: use __kernel_timespec for sys_mq_timed{send,receive}
This performs a complete conversion of the ipc/mqueue code to
use 64-bit time_t both internally and on the user-facing side
of 32-bit architectures that use CONFIG_COMPAT_TIME. For
compatibility with existing user space, these now use
compat_sys_mq_timed{send,receive}.
Signed-off-by: Arnd Bergmann <arnd@...db.de>
---
include/linux/audit.h | 4 ++--
include/linux/syscalls.h | 4 ++--
ipc/mqueue.c | 16 ++++++++--------
kernel/audit.h | 2 +-
kernel/auditsc.c | 14 +++++++-------
5 files changed, 20 insertions(+), 20 deletions(-)
diff --git a/include/linux/audit.h b/include/linux/audit.h
index c2e7e3a83965..ab696322bb72 100644
--- a/include/linux/audit.h
+++ b/include/linux/audit.h
@@ -242,7 +242,7 @@ extern int __audit_socketcall(int nargs, unsigned long *args);
extern int __audit_sockaddr(int len, void *addr);
extern void __audit_fd_pair(int fd1, int fd2);
extern void __audit_mq_open(int oflag, umode_t mode, struct mq_attr *attr);
-extern void __audit_mq_sendrecv(mqd_t mqdes, size_t msg_len, unsigned int msg_prio, const struct timespec *abs_timeout);
+extern void __audit_mq_sendrecv(mqd_t mqdes, size_t msg_len, unsigned int msg_prio, const struct timespec64 *abs_timeout);
extern void __audit_mq_notify(mqd_t mqdes, const struct sigevent *notification);
extern void __audit_mq_getsetattr(mqd_t mqdes, struct mq_attr *mqstat);
extern int __audit_log_bprm_fcaps(struct linux_binprm *bprm,
@@ -288,7 +288,7 @@ static inline void audit_mq_open(int oflag, umode_t mode, struct mq_attr *attr)
if (unlikely(!audit_dummy_context()))
__audit_mq_open(oflag, mode, attr);
}
-static inline void audit_mq_sendrecv(mqd_t mqdes, size_t msg_len, unsigned int msg_prio, const struct timespec *abs_timeout)
+static inline void audit_mq_sendrecv(mqd_t mqdes, size_t msg_len, unsigned int msg_prio, const struct timespec64 *abs_timeout)
{
if (unlikely(!audit_dummy_context()))
__audit_mq_sendrecv(mqdes, msg_len, msg_prio, abs_timeout);
diff --git a/include/linux/syscalls.h b/include/linux/syscalls.h
index c2a70a8f907d..c3f15b5a9b79 100644
--- a/include/linux/syscalls.h
+++ b/include/linux/syscalls.h
@@ -675,8 +675,8 @@ asmlinkage long sys_ipc(unsigned int call, int first, unsigned long second,
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);
diff --git a/ipc/mqueue.c b/ipc/mqueue.c
index 3aaea7ffd077..f3f27ad1ca44 100644
--- a/ipc/mqueue.c
+++ b/ipc/mqueue.c
@@ -672,15 +672,15 @@ 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,
- ktime_t *expires, struct timespec *ts)
+static int prepare_timeout(const struct __kernel_timespec __user *u_abs_timeout,
+ ktime_t *expires, struct timespec64 *ts)
{
- if (copy_from_user(ts, u_abs_timeout, sizeof(struct timespec)))
+ if (get_timespec64(ts, u_abs_timeout))
return -EFAULT;
if (!timespec_valid(ts))
return -EINVAL;
- *expires = timespec_to_ktime(*ts);
+ *expires = timespec64_to_ktime(*ts);
return 0;
}
@@ -953,7 +953,7 @@ static inline void pipelined_receive(struct mqueue_inode_info *info)
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 fd f;
struct inode *inode;
@@ -962,7 +962,7 @@ SYSCALL_DEFINE5(mq_timedsend, mqd_t, mqdes, const char __user *, u_msg_ptr,
struct msg_msg *msg_ptr;
struct mqueue_inode_info *info;
ktime_t expires, *timeout = NULL;
- struct timespec ts;
+ struct timespec64 ts;
struct posix_msg_tree_node *new_leaf = NULL;
int ret = 0;
@@ -1073,7 +1073,7 @@ out:
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)
{
ssize_t ret;
struct msg_msg *msg_ptr;
@@ -1082,7 +1082,7 @@ SYSCALL_DEFINE5(mq_timedreceive, mqd_t, mqdes, char __user *, u_msg_ptr,
struct mqueue_inode_info *info;
struct ext_wait_queue wait;
ktime_t expires, *timeout = NULL;
- struct timespec ts;
+ struct timespec64 ts;
struct posix_msg_tree_node *new_leaf = NULL;
if (u_abs_timeout) {
diff --git a/kernel/audit.h b/kernel/audit.h
index d641f9bb3ed0..b83e7aaca647 100644
--- a/kernel/audit.h
+++ b/kernel/audit.h
@@ -179,7 +179,7 @@ struct audit_context {
mqd_t mqdes;
size_t msg_len;
unsigned int msg_prio;
- struct timespec abs_timeout;
+ struct timespec64 abs_timeout;
} mq_sendrecv;
struct {
int oflag;
diff --git a/kernel/auditsc.c b/kernel/auditsc.c
index 9fb9d1cb83ce..6af873dcad55 100644
--- a/kernel/auditsc.c
+++ b/kernel/auditsc.c
@@ -1230,12 +1230,12 @@ static void show_special(struct audit_context *context, int *call_panic)
case AUDIT_MQ_SENDRECV: {
audit_log_format(ab,
"mqdes=%d msg_len=%zd msg_prio=%u "
- "abs_timeout_sec=%ld abs_timeout_nsec=%ld",
+ "abs_timeout_sec=%lld abs_timeout_nsec=%lld",
context->mq_sendrecv.mqdes,
context->mq_sendrecv.msg_len,
context->mq_sendrecv.msg_prio,
- context->mq_sendrecv.abs_timeout.tv_sec,
- context->mq_sendrecv.abs_timeout.tv_nsec);
+ (s64)context->mq_sendrecv.abs_timeout.tv_sec,
+ (s64)context->mq_sendrecv.abs_timeout.tv_nsec);
break; }
case AUDIT_MQ_NOTIFY: {
audit_log_format(ab, "mqdes=%d sigev_signo=%d",
@@ -2062,15 +2062,15 @@ void __audit_mq_open(int oflag, umode_t mode, struct mq_attr *attr)
*
*/
void __audit_mq_sendrecv(mqd_t mqdes, size_t msg_len, unsigned int msg_prio,
- const struct timespec *abs_timeout)
+ const struct timespec64 *abs_timeout)
{
struct audit_context *context = current->audit_context;
- struct timespec *p = &context->mq_sendrecv.abs_timeout;
+ struct timespec64 *p = &context->mq_sendrecv.abs_timeout;
if (abs_timeout)
- memcpy(p, abs_timeout, sizeof(struct timespec));
+ memcpy(p, abs_timeout, sizeof(struct timespec64));
else
- memset(p, 0, sizeof(struct timespec));
+ memset(p, 0, sizeof(struct timespec64));
context->mq_sendrecv.mqdes = mqdes;
context->mq_sendrecv.msg_len = msg_len;
--
2.1.0.rc2
--
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