From: John Stultz <john.stultz@linaro.org>
To: LKML <linux-kernel@vger.kernel.org>
Cc: John Stultz <john.stultz@linaro.org>,
Thomas Gleixner <tglx@linutronix.de>,
Ingo Molnar <mingo@redhat.com>,
Benjamin Herrenschmidt <benh@kernel.crashing.org>
Subject: [PATCH] timekeeping: Another fix to the VSYSCALL_OLD update_vsyscall
Date: Tue, 12 Aug 2014 08:52:29 -0700 [thread overview]
Message-ID: <1407858749-15422-1-git-send-email-john.stultz@linaro.org> (raw)
Benjamin Herrenschmidt pointed out that I firuther missed
modifying update_vsyscall after the wall_to_mono value was
changed to a timespec64. This causes issues on powerpc32,
which expects a 32bit timespec.
This patch fixes the problem my properly converting from
a timespec64 to a timespec before passing the value on to
the arch-specific vsyscall logic.
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Reported-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: John Stultz <john.stultz@linaro.org>
---
kernel/time/timekeeping.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/kernel/time/timekeeping.c b/kernel/time/timekeeping.c
index f36b028..fb4a9c2 100644
--- a/kernel/time/timekeeping.c
+++ b/kernel/time/timekeeping.c
@@ -338,10 +338,11 @@ EXPORT_SYMBOL_GPL(ktime_get_mono_fast_ns);
static inline void update_vsyscall(struct timekeeper *tk)
{
- struct timespec xt;
+ struct timespec xt, wm;
xt = timespec64_to_timespec(tk_xtime(tk));
- update_vsyscall_old(&xt, &tk->wall_to_monotonic, tk->tkr.clock, tk->tkr.mult,
+ wm = timespec64_to_timespec(tk->wall_to_monotonic);
+ update_vsyscall_old(&xt, &wm, tk->tkr.clock, tk->tkr.mult,
tk->tkr.cycle_last);
}
--
1.9.1
next reply other threads:[~2014-08-12 15:52 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-08-12 15:52 John Stultz [this message]
2014-08-13 0:20 ` Thomas Gleixner
2014-08-13 19:47 John Stultz
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