From: Thomas Gleixner <tglx@linutronix.de>
To: Linus Torvalds <torvalds@linux-foundation.org>
Cc: LKML <linux-kernel@vger.kernel.org>,
Ingo Molnar <mingo@kernel.org>, "H. Peter Anvin" <hpa@zytor.com>
Subject: [GIT pull] timer fix for 4.13
Date: Sun, 3 Sep 2017 11:00:02 +0200 (CEST) [thread overview]
Message-ID: <alpine.DEB.2.20.1709031057410.2527@nanos> (raw)
Linus,
please pull the latest timers-urgent-for-linus git tree from:
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git timers-urgent-for-linus
A single fix for a thinko in the raw timekeeper update which causes clock
MONOTONIC_RAW to run with erratically increased frequency.
Thanks,
tglx
------------------>
John Stultz (1):
time: Fix ktime_get_raw() incorrect base accumulation
kernel/time/timekeeping.c | 4 +---
1 file changed, 1 insertion(+), 3 deletions(-)
diff --git a/kernel/time/timekeeping.c b/kernel/time/timekeeping.c
index cedafa008de5..7e7e61c00d61 100644
--- a/kernel/time/timekeeping.c
+++ b/kernel/time/timekeeping.c
@@ -637,9 +637,7 @@ static inline void tk_update_ktime_data(struct timekeeper *tk)
tk->ktime_sec = seconds;
/* Update the monotonic raw base */
- seconds = tk->raw_sec;
- nsec = (u32)(tk->tkr_raw.xtime_nsec >> tk->tkr_raw.shift);
- tk->tkr_raw.base = ns_to_ktime(seconds * NSEC_PER_SEC + nsec);
+ tk->tkr_raw.base = ns_to_ktime(tk->raw_sec * NSEC_PER_SEC);
}
/* must hold timekeeper_lock */
next reply other threads:[~2017-09-03 9:00 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-09-03 9:00 Thomas Gleixner [this message]
-- strict thread matches above, loose matches on Subject: below --
2017-08-04 20:20 Thomas Gleixner
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