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authorAnna-Maria Behnsen <anna-maria@linutronix.de>2022-04-05 22:17:31 +0300
committerThomas Gleixner <tglx@linutronix.de>2022-04-09 23:19:39 +0300
commit2731aa7d65dbb31c6dad14347c37d522bb3bc7c6 (patch)
tree19a19ee5e63bed751b21aea801939d1c746d174f /kernel/time
parentc54bc0fc84214b203f7a0ebfd1bd308ce2abe920 (diff)
downloadlinux-2731aa7d65dbb31c6dad14347c37d522bb3bc7c6.tar.xz
timers: Initialize base::next_expiry_recalc in timers_prepare_cpu()
When base::next_expiry_recalc is not initialized to false during cpu bringup in HOTPLUG_CPU and is accidently true and no timer is queued in the meantime, the loop through the wheel to find __next_timer_interrupt() might be done for nothing. Therefore initialize base::next_expiry_recalc to false in timers_prepare_cpu(). Signed-off-by: Anna-Maria Behnsen <anna-maria@linutronix.de> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Frederic Weisbecker <frederic@kernel.org> Link: https://lore.kernel.org/r/20220405191732.7438-2-anna-maria@linutronix.de
Diffstat (limited to 'kernel/time')
-rw-r--r--kernel/time/timer.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/kernel/time/timer.c b/kernel/time/timer.c
index 9dd2a39cb3b0..204d6cd83d0e 100644
--- a/kernel/time/timer.c
+++ b/kernel/time/timer.c
@@ -1953,6 +1953,7 @@ int timers_prepare_cpu(unsigned int cpu)
base = per_cpu_ptr(&timer_bases[b], cpu);
base->clk = jiffies;
base->next_expiry = base->clk + NEXT_TIMER_MAX_DELTA;
+ base->next_expiry_recalc = false;
base->timers_pending = false;
base->is_idle = false;
}