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| author |   Al Viro <viro@zeniv.linux.org.uk> | 2017-06-07 09:42:40 +0100 |
|---|---|---|
| committer |   Thomas Gleixner <tglx@linutronix.de> | 2017-06-14 00:00:45 +0200 |
| commit | b180db2c8ca6692a10b79631cadc18d03303d494 (patch) | |
| tree | ba94924a438f4c504dd1709647f299cf5081a2c2 /kernel/time | |
| parent | posix-timers: Move compat_timer_create() to native, get rid of set_fs() (diff) | |
| download | linux-dev-b180db2c8ca6692a10b79631cadc18d03303d494.tar.xz linux-dev-b180db2c8ca6692a10b79631cadc18d03303d494.zip | |
time: Move compat_time()/stime() to native
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: John Stultz <john.stultz@linaro.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/20170607084241.28657-15-viro@ZenIV.linux.org.uk
Diffstat (limited to 'kernel/time')
| -rw-r--r-- | kernel/time/time.c | 41 |
1 files changed, 41 insertions, 0 deletions
diff --git a/kernel/time/time.c b/kernel/time/time.c index 400662f16c5a..e5d44999ff78 100644 --- a/kernel/time/time.c +++ b/kernel/time/time.c @@ -100,6 +100,47 @@ SYSCALL_DEFINE1(stime, time_t __user *, tptr) #endif /* __ARCH_WANT_SYS_TIME */ +#ifdef CONFIG_COMPAT +#ifdef __ARCH_WANT_COMPAT_SYS_TIME + +/* compat_time_t is a 32 bit "long" and needs to get converted. */ +COMPAT_SYSCALL_DEFINE1(time, compat_time_t __user *, tloc) +{ + struct timeval tv; + compat_time_t i; + + do_gettimeofday(&tv); + i = tv.tv_sec; + + if (tloc) { + if (put_user(i,tloc)) + return -EFAULT; + } + force_successful_syscall_return(); + return i; +} + +COMPAT_SYSCALL_DEFINE1(stime, compat_time_t __user *, tptr) +{ + struct timespec tv; + int err; + + if (get_user(tv.tv_sec, tptr)) + return -EFAULT; + + tv.tv_nsec = 0; + + err = security_settime(&tv, NULL); + if (err) + return err; + + do_settimeofday(&tv); + return 0; +} + +#endif /* __ARCH_WANT_COMPAT_SYS_TIME */ +#endif + SYSCALL_DEFINE2(gettimeofday, struct timeval __user *, tv, struct timezone __user *, tz) { |