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authorDeepa Dinamani <deepa.kernel@gmail.com>2017-03-26 22:04:12 +0300
committerThomas Gleixner <tglx@linutronix.de>2017-04-14 22:49:54 +0300
commit2ac00f17b2e110c67ed2af3713bc04aec62e4608 (patch)
treee4d0ab1278f55bbb54593c16e6431749ce4bf290
parent5fc63f9577322d11019b6d357f73f5ce9031f263 (diff)
downloadlinux-2ac00f17b2e110c67ed2af3713bc04aec62e4608.tar.xz
time: Delete do_sys_setimeofday()
struct timespec is not y2038 safe on 32 bit machines and needs to be replaced with struct timespec64. do_sys_timeofday() is just a wrapper function. Replace all calls to this function with direct calls to do_sys_timeofday64() instead and delete do_sys_timeofday(). Signed-off-by: Deepa Dinamani <deepa.kernel@gmail.com> Cc: y2038@lists.linaro.org Cc: john.stultz@linaro.org Cc: arnd@arndb.de Cc: linux-alpha@vger.kernel.org Link: http://lkml.kernel.org/r/1490555058-4603-2-git-send-email-deepa.kernel@gmail.com Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
-rw-r--r--arch/alpha/kernel/osf_sys.c4
-rw-r--r--include/linux/timekeeping.h15
-rw-r--r--kernel/compat.c4
-rw-r--r--kernel/time/posix-stubs.c5
-rw-r--r--kernel/time/posix-timers.c5
-rw-r--r--kernel/time/time.c4
6 files changed, 15 insertions, 22 deletions
diff --git a/arch/alpha/kernel/osf_sys.c b/arch/alpha/kernel/osf_sys.c
index 0b961093ca5c..9de47a9c6df2 100644
--- a/arch/alpha/kernel/osf_sys.c
+++ b/arch/alpha/kernel/osf_sys.c
@@ -1016,6 +1016,7 @@ SYSCALL_DEFINE2(osf_gettimeofday, struct timeval32 __user *, tv,
SYSCALL_DEFINE2(osf_settimeofday, struct timeval32 __user *, tv,
struct timezone __user *, tz)
{
+ struct timespec64 kts64;
struct timespec kts;
struct timezone ktz;
@@ -1023,13 +1024,14 @@ SYSCALL_DEFINE2(osf_settimeofday, struct timeval32 __user *, tv,
if (get_tv32((struct timeval *)&kts, tv))
return -EFAULT;
kts.tv_nsec *= 1000;
+ kts64 = timespec_to_timespec64(kts);
}
if (tz) {
if (copy_from_user(&ktz, tz, sizeof(*tz)))
return -EFAULT;
}
- return do_sys_settimeofday(tv ? &kts : NULL, tz ? &ktz : NULL);
+ return do_sys_settimeofday64(tv ? &kts64 : NULL, tz ? &ktz : NULL);
}
asmlinkage long sys_ni_posix_timers(void);
diff --git a/include/linux/timekeeping.h b/include/linux/timekeeping.h
index b598cbc7b576..3617a78897bb 100644
--- a/include/linux/timekeeping.h
+++ b/include/linux/timekeeping.h
@@ -19,21 +19,6 @@ extern void do_gettimeofday(struct timeval *tv);
extern int do_settimeofday64(const struct timespec64 *ts);
extern int do_sys_settimeofday64(const struct timespec64 *tv,
const struct timezone *tz);
-static inline int do_sys_settimeofday(const struct timespec *tv,
- const struct timezone *tz)
-{
- struct timespec64 ts64;
-
- if (!tv)
- return do_sys_settimeofday64(NULL, tz);
-
- if (!timespec_valid(tv))
- return -EINVAL;
-
- ts64 = timespec_to_timespec64(*tv);
- return do_sys_settimeofday64(&ts64, tz);
-}
-
/*
* Kernel time accessors
*/
diff --git a/kernel/compat.c b/kernel/compat.c
index 19aec5d98108..1eb9e8aad869 100644
--- a/kernel/compat.c
+++ b/kernel/compat.c
@@ -108,8 +108,8 @@ COMPAT_SYSCALL_DEFINE2(gettimeofday, struct compat_timeval __user *, tv,
COMPAT_SYSCALL_DEFINE2(settimeofday, struct compat_timeval __user *, tv,
struct timezone __user *, tz)
{
+ struct timespec64 new_ts;
struct timeval user_tv;
- struct timespec new_ts;
struct timezone new_tz;
if (tv) {
@@ -123,7 +123,7 @@ COMPAT_SYSCALL_DEFINE2(settimeofday, struct compat_timeval __user *, tv,
return -EFAULT;
}
- return do_sys_settimeofday(tv ? &new_ts : NULL, tz ? &new_tz : NULL);
+ return do_sys_settimeofday64(tv ? &new_ts : NULL, tz ? &new_tz : NULL);
}
static int __compat_get_timeval(struct timeval *tv, const struct compat_timeval __user *ctv)
diff --git a/kernel/time/posix-stubs.c b/kernel/time/posix-stubs.c
index cd6716e115e8..95a1b1fc3968 100644
--- a/kernel/time/posix-stubs.c
+++ b/kernel/time/posix-stubs.c
@@ -49,13 +49,16 @@ SYS_NI(alarm);
SYSCALL_DEFINE2(clock_settime, const clockid_t, which_clock,
const struct timespec __user *, tp)
{
+ struct timespec64 new_tp64;
struct timespec new_tp;
if (which_clock != CLOCK_REALTIME)
return -EINVAL;
if (copy_from_user(&new_tp, tp, sizeof (*tp)))
return -EFAULT;
- return do_sys_settimeofday(&new_tp, NULL);
+
+ new_tp64 = timespec_to_timespec64(new_tp);
+ return do_sys_settimeofday64(&new_tp64, NULL);
}
SYSCALL_DEFINE2(clock_gettime, const clockid_t, which_clock,
diff --git a/kernel/time/posix-timers.c b/kernel/time/posix-timers.c
index 50a6a47020de..f215ef792772 100644
--- a/kernel/time/posix-timers.c
+++ b/kernel/time/posix-timers.c
@@ -214,7 +214,10 @@ static int posix_clock_realtime_get(clockid_t which_clock, struct timespec *tp)
static int posix_clock_realtime_set(const clockid_t which_clock,
const struct timespec *tp)
{
- return do_sys_settimeofday(tp, NULL);
+ struct timespec64 tp64;
+
+ tp64 = timespec_to_timespec64(*tp);
+ return do_sys_settimeofday64(&tp64, NULL);
}
static int posix_clock_realtime_adj(const clockid_t which_clock,
diff --git a/kernel/time/time.c b/kernel/time/time.c
index 25bdd2504571..6574bba44b55 100644
--- a/kernel/time/time.c
+++ b/kernel/time/time.c
@@ -193,8 +193,8 @@ int do_sys_settimeofday64(const struct timespec64 *tv, const struct timezone *tz
SYSCALL_DEFINE2(settimeofday, struct timeval __user *, tv,
struct timezone __user *, tz)
{
+ struct timespec64 new_ts;
struct timeval user_tv;
- struct timespec new_ts;
struct timezone new_tz;
if (tv) {
@@ -212,7 +212,7 @@ SYSCALL_DEFINE2(settimeofday, struct timeval __user *, tv,
return -EFAULT;
}
- return do_sys_settimeofday(tv ? &new_ts : NULL, tz ? &new_tz : NULL);
+ return do_sys_settimeofday64(tv ? &new_ts : NULL, tz ? &new_tz : NULL);
}
SYSCALL_DEFINE1(adjtimex, struct timex __user *, txc_p)