The current_kernel_time() is not year 2038 safe on 32bit systems due to return timespec value. Introduce current_kernel_time64() function which returns timespec64 value, also as a helper function calling by current_kernel_time().

Signed-off-by: Baolin Wang baolin.wang@linaro.org --- include/linux/timekeeping.h | 10 +++++++++- kernel/time/timekeeping.c | 6 +++--- 2 files changed, 12 insertions(+), 4 deletions(-)

diff --git a/include/linux/timekeeping.h b/include/linux/timekeeping.h index 3aa72e6..f886bdb 100644 --- a/include/linux/timekeeping.h +++ b/include/linux/timekeeping.h @@ -18,10 +18,18 @@ extern int do_sys_settimeofday(const struct timespec *tv, * Kernel time accessors */ unsigned long get_seconds(void); -struct timespec current_kernel_time(void); +struct timespec64 current_kernel_time64(void); /* does not take xtime_lock */ struct timespec __current_kernel_time(void);

+static inline struct timespec current_kernel_time(void) +{ + struct timespec64 now = current_kernel_time64(); + + return timespec64_to_timespec(now); +} + /* * timespec based interfaces */ diff --git a/kernel/time/timekeeping.c b/kernel/time/timekeeping.c index 0d784b3..5fe9b77 100644 --- a/kernel/time/timekeeping.c +++ b/kernel/time/timekeeping.c @@ -1857,7 +1857,7 @@ struct timespec __current_kernel_time(void) return timespec64_to_timespec(tk_xtime(tk)); }

-struct timespec current_kernel_time(void) +struct timespec64 current_kernel_time64(void) { struct timekeeper *tk = &tk_core.timekeeper; struct timespec64 now; @@ -1869,9 +1869,9 @@ struct timespec current_kernel_time(void) now = tk_xtime(tk); } while (read_seqcount_retry(&tk_core.seq, seq));

- return timespec64_to_timespec(now); + return now; } -EXPORT_SYMBOL(current_kernel_time); +EXPORT_SYMBOL(current_kernel_time64);

struct timespec64 get_monotonic_coarse64(void) {