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| author | Arnd Bergmann <arnd@arndb.de> | 2018-08-14 15:18:20 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-11-20 18:45:24 +0100 |
| commit | 32d3fe68d20e3da9737fe828c23008fec94d48fa (patch) | |
| tree | b3f2574263b283b460d63d66dc0f04efd4a98e8b /kernel | |
| parent | 5a830803b593a5c2d9a15f68c055ea1422f4c8a9 (diff) | |
| download | linux-stable-32d3fe68d20e3da9737fe828c23008fec94d48fa.tar.gz linux-stable-32d3fe68d20e3da9737fe828c23008fec94d48fa.tar.bz2 linux-stable-32d3fe68d20e3da9737fe828c23008fec94d48fa.zip | |
y2038: make do_gettimeofday() and get_seconds() inline
[ Upstream commit 33e26418193f58d1895f2f968e1953b1caf8deb7 ]
get_seconds() and do_gettimeofday() are only used by a few modules now any
more (waiting for the respective patches to get accepted), and they are
among the last holdouts of code that is not y2038 safe in the core kernel.
Move the implementation into the timekeeping32.h header to clean up
the core kernel and isolate the old interfaces further.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'kernel')
| -rw-r--r-- | kernel/time/time.c | 15 | ||||
| -rw-r--r-- | kernel/time/timekeeping.c | 24 |
2 files changed, 9 insertions, 30 deletions
diff --git a/kernel/time/time.c b/kernel/time/time.c index be057d6579f1..f7d4fa5ddb9e 100644 --- a/kernel/time/time.c +++ b/kernel/time/time.c @@ -144,9 +144,11 @@ SYSCALL_DEFINE2(gettimeofday, struct timeval __user *, tv, struct timezone __user *, tz) { if (likely(tv != NULL)) { - struct timeval ktv; - do_gettimeofday(&ktv); - if (copy_to_user(tv, &ktv, sizeof(ktv))) + struct timespec64 ts; + + ktime_get_real_ts64(&ts); + if (put_user(ts.tv_sec, &tv->tv_sec) || + put_user(ts.tv_nsec / 1000, &tv->tv_usec)) return -EFAULT; } if (unlikely(tz != NULL)) { @@ -227,10 +229,11 @@ COMPAT_SYSCALL_DEFINE2(gettimeofday, struct compat_timeval __user *, tv, struct timezone __user *, tz) { if (tv) { - struct timeval ktv; + struct timespec64 ts; - do_gettimeofday(&ktv); - if (compat_put_timeval(&ktv, tv)) + ktime_get_real_ts64(&ts); + if (put_user(ts.tv_sec, &tv->tv_sec) || + put_user(ts.tv_nsec / 1000, &tv->tv_usec)) return -EFAULT; } if (tz) { diff --git a/kernel/time/timekeeping.c b/kernel/time/timekeeping.c index c2708e1f0c69..81ee5b83c920 100644 --- a/kernel/time/timekeeping.c +++ b/kernel/time/timekeeping.c @@ -1215,22 +1215,6 @@ int get_device_system_crosststamp(int (*get_time_fn) EXPORT_SYMBOL_GPL(get_device_system_crosststamp); /** - * do_gettimeofday - Returns the time of day in a timeval - * @tv: pointer to the timeval to be set - * - * NOTE: Users should be converted to using getnstimeofday() - */ -void do_gettimeofday(struct timeval *tv) -{ - struct timespec64 now; - - getnstimeofday64(&now); - tv->tv_sec = now.tv_sec; - tv->tv_usec = now.tv_nsec/1000; -} -EXPORT_SYMBOL(do_gettimeofday); - -/** * do_settimeofday64 - Sets the time of day. * @ts: pointer to the timespec64 variable containing the new time * @@ -2177,14 +2161,6 @@ void getboottime64(struct timespec64 *ts) } EXPORT_SYMBOL_GPL(getboottime64); -unsigned long get_seconds(void) -{ - struct timekeeper *tk = &tk_core.timekeeper; - - return tk->xtime_sec; -} -EXPORT_SYMBOL(get_seconds); - void ktime_get_coarse_real_ts64(struct timespec64 *ts) { struct timekeeper *tk = &tk_core.timekeeper; |