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[PATCH] Time: Use clocksource infrastructure for update_wall_time

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Modify the update_wall_time function so it increments time using the
clocksource abstraction instead of jiffies.  Since the only clocksource driver
currently provided is the jiffies clocksource, this should result in no
functional change.  Additionally, a timekeeping_init and timekeeping_resume
function has been added to initialize and maintain some of the new timekeping
state.

[hirofumi@mail.parknet.co.jp: fixlet]
Signed-off-by: John Stultz <johnstul@us.ibm.com>
Signed-off-by: OGAWA Hirofumi <hirofumi@mail.parknet.co.jp>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
john stultz
2006-06-26 00:25:06 -07:00
committed by Linus Torvalds
parent 734efb467b
commit ad596171ed
5 changed files with 86 additions and 15 deletions
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2
include/linux/time.h
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@ -77,6 +77,8 @@ extern struct timespec xtime;
extern struct timespec wall_to_monotonic;
extern seqlock_t xtime_lock;
void timekeeping_init(void);
static inline unsigned long get_seconds(void)
{
return xtime.tv_sec;