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authorAtsushi Nemoto <anemo@mba.ocn.ne.jp>2006-03-01 15:16:26 +0900
committerRalf Baechle <ralf@linux-mips.org>2006-03-01 19:22:22 +0000
commit800d11420dfdad3a50630ff424d7782660ad558c (patch)
treef13cd691d6f36eb4fbe50f97b9a5ea2156ccfa6c /arch/mips/kernel/time.c
parent71efa38c0eef581c69c221ceb8645f61d1e93270 (diff)
[MIPS] Use USECS_PER_SEC / HZ instead of tick_usec in do_gettimeofday.
The 'tick_usec' is USER_HZ period in usec. do_gettimeofday() should use kernel HZ value. Here is a patch for MIPS. It seems m32r, m68k and sparc have same problem though their HZ and USER_HZ are same for now. Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Diffstat (limited to 'arch/mips/kernel/time.c')
-rw-r--r--arch/mips/kernel/time.c5
1 files changed, 3 insertions, 2 deletions
diff --git a/arch/mips/kernel/time.c b/arch/mips/kernel/time.c
index 7050b4ffffcd..42c94c771afb 100644
--- a/arch/mips/kernel/time.c
+++ b/arch/mips/kernel/time.c
@@ -163,7 +163,7 @@ void do_gettimeofday(struct timeval *tv)
unsigned long seq;
unsigned long lost;
unsigned long usec, sec;
- unsigned long max_ntp_tick = tick_usec - tickadj;
+ unsigned long max_ntp_tick;
do {
seq = read_seqbegin(&xtime_lock);
@@ -178,12 +178,13 @@ void do_gettimeofday(struct timeval *tv)
* Better to lose some accuracy than have time go backwards..
*/
if (unlikely(time_adjust < 0)) {
+ max_ntp_tick = (USEC_PER_SEC / HZ) - tickadj;
usec = min(usec, max_ntp_tick);
if (lost)
usec += lost * max_ntp_tick;
} else if (unlikely(lost))
- usec += lost * tick_usec;
+ usec += lost * (USEC_PER_SEC / HZ);
sec = xtime.tv_sec;
usec += (xtime.tv_nsec / 1000);

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