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
Two minimalistic fixes for 4.2 regressions:
- Eric fixed a thinko in the timer_list base switching code caused by
the overhaul of the timer wheel. It can cause a cpu to see the
wrong base for a timer while we move the timer around.
- Guenter fixed a regression for IMX if booted w/o device tree, where
the timer interrupt is not initialized and therefor the machine
fails to boot.
Thanks,
tglx
------------------>
Eric Dumazet (1):
timer: Write timer->flags atomically
Guenter Roeck (1):
clocksource/imx: Fix boot with non-DT systems
drivers/clocksource/timer-imx-gpt.c | 1 +
kernel/time/timer.c | 4 ++--
2 files changed, 3 insertions(+), 2 deletions(-)
diff --git a/drivers/clocksource/timer-imx-gpt.c
b/drivers/clocksource/timer-imx-gpt.c
index 2d59038dec43..86c7eb66bdfb 100644
--- a/drivers/clocksource/timer-imx-gpt.c
+++ b/drivers/clocksource/timer-imx-gpt.c
@@ -462,6 +462,7 @@ void __init mxc_timer_init(unsigned long pbase, int irq,
enum imx_gpt_type type)
BUG_ON(!imxtm->base);
imxtm->type = type;
+ imxtm->irq = irq;
_mxc_timer_init(imxtm);
}
diff --git a/kernel/time/timer.c b/kernel/time/timer.c
index 5e097fa9faf7..84190f02b521 100644
--- a/kernel/time/timer.c
+++ b/kernel/time/timer.c
@@ -807,8 +807,8 @@ __mod_timer(struct timer_list *timer, unsigned long expires,
spin_unlock(&base->lock);
base = new_base;
spin_lock(&base->lock);
- timer->flags &= ~TIMER_BASEMASK;
- timer->flags |= base->cpu;
+ WRITE_ONCE(timer->flags,
+ (timer->flags & ~TIMER_BASEMASK) |
base->cpu);
}
}
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