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authorjohn stultz <johnstul@us.ibm.com>2009-10-03 01:24:15 +0200
committerIngo Molnar <mingo@elte.hu>2009-10-05 13:52:02 +0200
commit7bc7d637452383d56ba4368d4336b0dde1bb476d (patch)
treef1c8e1e103a900850342d46de27ebdf1e7d07f78 /kernel/time.c
parenttime: Implement logarithmic time accumulation (diff)
downloadlinux-7bc7d637452383d56ba4368d4336b0dde1bb476d.tar.xz
linux-7bc7d637452383d56ba4368d4336b0dde1bb476d.zip
time: Remove xtime_cache
With the prior logarithmic time accumulation patch, xtime will now always be within one "tick" of the current time, instead of possibly half a second off. This removes the need for the xtime_cache value, which always stored the time at the last interrupt, so this patch cleans that up removing the xtime_cache related code. This is a bit simpler, but still could use some wider testing. Signed-off-by: John Stultz <johnstul@us.ibm.com> Acked-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: John Kacur <jkacur@redhat.com> Cc: Clark Williams <williams@redhat.com> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Cc: Andrew Morton <akpm@linux-foundation.org> LKML-Reference: <1254525855.7741.95.camel@localhost.localdomain> Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'kernel/time.c')
-rw-r--r--kernel/time.c1
1 files changed, 0 insertions, 1 deletions
diff --git a/kernel/time.c b/kernel/time.c
index 2e2e469a7fec..2ef4fe2079b6 100644
--- a/kernel/time.c
+++ b/kernel/time.c
@@ -136,7 +136,6 @@ static inline void warp_clock(void)
write_seqlock_irq(&xtime_lock);
wall_to_monotonic.tv_sec -= sys_tz.tz_minuteswest * 60;
xtime.tv_sec += sys_tz.tz_minuteswest * 60;
- update_xtime_cache(0);
write_sequnlock_irq(&xtime_lock);
clock_was_set();
}