From e6c2682a1da36a2e79d9bab470412374434ce89e Mon Sep 17 00:00:00 2001 From: Deepa Dinamani Date: Wed, 8 Jun 2016 22:04:59 -0700 Subject: time: Add time64_to_tm() time_to_tm() takes time_t as an argument. time_t is not y2038 safe. Add time64_to_tm() that takes time64_t as an argument which is y2038 safe. The plan is to eventually replace all calls to time_to_tm() by time64_to_tm(). Cc: Prarit Bhargava Cc: Richard Cochran Cc: Thomas Gleixner Cc: Ingo Molnar Signed-off-by: Deepa Dinamani Signed-off-by: John Stultz --- kernel/time/timeconv.c | 11 ++++++----- 1 file changed, 6 insertions(+), 5 deletions(-) (limited to 'kernel/time') diff --git a/kernel/time/timeconv.c b/kernel/time/timeconv.c index 86628e755f38..7142580ad94f 100644 --- a/kernel/time/timeconv.c +++ b/kernel/time/timeconv.c @@ -67,20 +67,21 @@ static const unsigned short __mon_yday[2][13] = { #define SECS_PER_DAY (SECS_PER_HOUR * 24) /** - * time_to_tm - converts the calendar time to local broken-down time + * time64_to_tm - converts the calendar time to local broken-down time * * @totalsecs the number of seconds elapsed since 00:00:00 on January 1, 1970, * Coordinated Universal Time (UTC). * @offset offset seconds adding to totalsecs. * @result pointer to struct tm variable to receive broken-down time */ -void time_to_tm(time_t totalsecs, int offset, struct tm *result) +void time64_to_tm(time64_t totalsecs, int offset, struct tm *result) { long days, rem, y; + int remainder; const unsigned short *ip; - days = totalsecs / SECS_PER_DAY; - rem = totalsecs % SECS_PER_DAY; + days = div_s64_rem(totalsecs, SECS_PER_DAY, &remainder); + rem = remainder; rem += offset; while (rem < 0) { rem += SECS_PER_DAY; @@ -124,4 +125,4 @@ void time_to_tm(time_t totalsecs, int offset, struct tm *result) result->tm_mon = y; result->tm_mday = days + 1; } -EXPORT_SYMBOL(time_to_tm); +EXPORT_SYMBOL(time64_to_tm); -- cgit v1.2.3