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Date: Sun, 24 Jun 2018 05:44:05 -0700
From: tip-bot for Deepa Dinamani <tipbot@...or.com>
To: linux-tip-commits@...r.kernel.org
Cc: deepa.kernel@...il.com, linux-kernel@...r.kernel.org,
hpa@...or.com, tglx@...utronix.de, mingo@...nel.org
Subject: [tip:timers/core] time: Change types to new y2038 safe
__kernel_itimerspec
Commit-ID: 6ff84735070276d72af716e21c3214ee20d60e70
Gitweb: https://git.kernel.org/tip/6ff84735070276d72af716e21c3214ee20d60e70
Author: Deepa Dinamani <deepa.kernel@...il.com>
AuthorDate: Sat, 16 Jun 2018 22:11:44 -0700
Committer: Thomas Gleixner <tglx@...utronix.de>
CommitDate: Sun, 24 Jun 2018 14:39:47 +0200
time: Change types to new y2038 safe __kernel_itimerspec
timer_set/gettime and timerfd_set/get apis use struct itimerspec at the
user interface layer. struct itimerspec is not y2038-safe. Change these
interfaces to use y2038-safe struct __kernel_itimerspec instead. This will
help define new syscalls when 32bit architectures select CONFIG_64BIT_TIME.
Signed-off-by: Deepa Dinamani <deepa.kernel@...il.com>
Signed-off-by: Thomas Gleixner <tglx@...utronix.de>
Cc: arnd@...db.de
Cc: viro@...iv.linux.org.uk
Cc: linux-fsdevel@...r.kernel.org
Cc: linux-api@...r.kernel.org
Cc: y2038@...ts.linaro.org
Link: https://lkml.kernel.org/r/20180617051144.29756-4-deepa.kernel@gmail.com
---
fs/timerfd.c | 8 ++++----
include/linux/syscalls.h | 10 +++++-----
kernel/time/posix-timers.c | 12 +++++++-----
3 files changed, 16 insertions(+), 14 deletions(-)
diff --git a/fs/timerfd.c b/fs/timerfd.c
index d84a2bee4f82..8bb926253f88 100644
--- a/fs/timerfd.c
+++ b/fs/timerfd.c
@@ -533,8 +533,8 @@ static int do_timerfd_gettime(int ufd, struct itimerspec64 *t)
}
SYSCALL_DEFINE4(timerfd_settime, int, ufd, int, flags,
- const struct itimerspec __user *, utmr,
- struct itimerspec __user *, otmr)
+ const struct __kernel_itimerspec __user *, utmr,
+ struct __kernel_itimerspec __user *, otmr)
{
struct itimerspec64 new, old;
int ret;
@@ -550,7 +550,7 @@ SYSCALL_DEFINE4(timerfd_settime, int, ufd, int, flags,
return ret;
}
-SYSCALL_DEFINE2(timerfd_gettime, int, ufd, struct itimerspec __user *, otmr)
+SYSCALL_DEFINE2(timerfd_gettime, int, ufd, struct __kernel_itimerspec __user *, otmr)
{
struct itimerspec64 kotmr;
int ret = do_timerfd_gettime(ufd, &kotmr);
@@ -559,7 +559,7 @@ SYSCALL_DEFINE2(timerfd_gettime, int, ufd, struct itimerspec __user *, otmr)
return put_itimerspec64(&kotmr, otmr) ? -EFAULT : 0;
}
-#ifdef CONFIG_COMPAT
+#ifdef CONFIG_COMPAT_32BIT_TIME
COMPAT_SYSCALL_DEFINE4(timerfd_settime, int, ufd, int, flags,
const struct compat_itimerspec __user *, utmr,
struct compat_itimerspec __user *, otmr)
diff --git a/include/linux/syscalls.h b/include/linux/syscalls.h
index 73810808cdf2..38b9ec152024 100644
--- a/include/linux/syscalls.h
+++ b/include/linux/syscalls.h
@@ -501,9 +501,9 @@ asmlinkage long sys_sync_file_range(int fd, loff_t offset, loff_t nbytes,
/* fs/timerfd.c */
asmlinkage long sys_timerfd_create(int clockid, int flags);
asmlinkage long sys_timerfd_settime(int ufd, int flags,
- const struct itimerspec __user *utmr,
- struct itimerspec __user *otmr);
-asmlinkage long sys_timerfd_gettime(int ufd, struct itimerspec __user *otmr);
+ const struct __kernel_itimerspec __user *utmr,
+ struct __kernel_itimerspec __user *otmr);
+asmlinkage long sys_timerfd_gettime(int ufd, struct __kernel_itimerspec __user *otmr);
/* fs/utimes.c */
asmlinkage long sys_utimensat(int dfd, const char __user *filename,
@@ -568,10 +568,10 @@ asmlinkage long sys_timer_create(clockid_t which_clock,
struct sigevent __user *timer_event_spec,
timer_t __user * created_timer_id);
asmlinkage long sys_timer_gettime(timer_t timer_id,
- struct itimerspec __user *setting);
+ struct __kernel_itimerspec __user *setting);
asmlinkage long sys_timer_getoverrun(timer_t timer_id);
asmlinkage long sys_timer_settime(timer_t timer_id, int flags,
- const struct itimerspec __user *new_setting,
+ const struct __kernel_itimerspec __user *new_setting,
struct itimerspec __user *old_setting);
asmlinkage long sys_timer_delete(timer_t timer_id);
asmlinkage long sys_clock_settime(clockid_t which_clock,
diff --git a/kernel/time/posix-timers.c b/kernel/time/posix-timers.c
index fcf90a10c43a..80d59333c76e 100644
--- a/kernel/time/posix-timers.c
+++ b/kernel/time/posix-timers.c
@@ -743,7 +743,7 @@ static int do_timer_gettime(timer_t timer_id, struct itimerspec64 *setting)
/* Get the time remaining on a POSIX.1b interval timer. */
SYSCALL_DEFINE2(timer_gettime, timer_t, timer_id,
- struct itimerspec __user *, setting)
+ struct __kernel_itimerspec __user *, setting)
{
struct itimerspec64 cur_setting;
@@ -755,7 +755,8 @@ SYSCALL_DEFINE2(timer_gettime, timer_t, timer_id,
return ret;
}
-#ifdef CONFIG_COMPAT
+#ifdef CONFIG_COMPAT_32BIT_TIME
+
COMPAT_SYSCALL_DEFINE2(timer_gettime, timer_t, timer_id,
struct compat_itimerspec __user *, setting)
{
@@ -768,6 +769,7 @@ COMPAT_SYSCALL_DEFINE2(timer_gettime, timer_t, timer_id,
}
return ret;
}
+
#endif
/*
@@ -906,8 +908,8 @@ retry:
/* Set a POSIX.1b interval timer */
SYSCALL_DEFINE4(timer_settime, timer_t, timer_id, int, flags,
- const struct itimerspec __user *, new_setting,
- struct itimerspec __user *, old_setting)
+ const struct __kernel_itimerspec __user *, new_setting,
+ struct __kernel_itimerspec __user *, old_setting)
{
struct itimerspec64 new_spec, old_spec;
struct itimerspec64 *rtn = old_setting ? &old_spec : NULL;
@@ -927,7 +929,7 @@ SYSCALL_DEFINE4(timer_settime, timer_t, timer_id, int, flags,
return error;
}
-#ifdef CONFIG_COMPAT
+#ifdef CONFIG_COMPAT_32BIT_TIME
COMPAT_SYSCALL_DEFINE4(timer_settime, timer_t, timer_id, int, flags,
struct compat_itimerspec __user *, new,
struct compat_itimerspec __user *, old)
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