linux/include
Thomas Gleixner 26456f87ac timers: Reinitialize per cpu bases on hotplug
The timer wheel bases are not (re)initialized on CPU hotplug. That leaves
them with a potentially stale clk and next_expiry valuem, which can cause
trouble then the CPU is plugged.

Add a prepare callback which forwards the clock, sets next_expiry to far in
the future and reset the control flags to a known state.

Set base->must_forward_clk so the first timer which is queued will try to
forward the clock to current jiffies.

Fixes: 500462a9de ("timers: Switch to a non-cascading wheel")
Reported-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Sebastian Siewior <bigeasy@linutronix.de>
Cc: Anna-Maria Gleixner <anna-maria@linutronix.de>
Cc: stable@vger.kernel.org
Link: https://lkml.kernel.org/r/alpine.DEB.2.20.1712272152200.2431@nanos
2017-12-29 23:13:09 +01:00
..
acpi Merge branch 'acpi-ec' into acpi 2017-11-30 13:37:29 +01:00
asm-generic Merge branch 'x86-pti-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2017-12-23 11:53:04 -08:00
clocksource arm64 updates for 4.15 2017-11-15 10:56:56 -08:00
crypto Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6 2017-12-22 12:22:48 -08:00
drm drm: rework delayed connector cleanup in connector_iter 2017-12-13 22:59:00 +01:00
dt-bindings fixes/cleanups for rc1, non-desktop flags for VR 2017-11-23 21:04:56 -10:00
keys
kvm KVM: arm/arm64: timer: Don't set irq as forwarded if no usable GIC 2017-12-18 10:53:23 +01:00
linux timers: Reinitialize per cpu bases on hotplug 2017-12-29 23:13:09 +01:00
math-emu
media media updates for v4.15-rc1 2017-11-15 20:30:12 -08:00
memory
misc
net sock: Add sock_owned_by_user_nocheck 2017-12-28 14:28:22 -05:00
pcmcia
ras
rdma Updates for 4.15 kernel merge window 2017-11-15 14:54:53 -08:00
scsi scsi: libsas: align sata_device's rps_resp on a cacheline 2017-11-21 23:06:32 -05:00
soc We have two changes to the core framework this time around. The first being a 2017-11-17 20:04:24 -08:00
sound ALSA: hda - Fix yet remaining issue with vmaster 0dB initialization 2017-11-22 12:34:56 +01:00
target Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending 2017-11-24 19:19:20 -10:00
trace Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2017-12-28 23:20:21 -08:00
uapi Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2017-12-15 13:08:37 -08:00
video fbdev changes for v4.15: 2017-11-20 21:50:24 -10:00
xen xen: fixes for 4.15-rc5 2017-12-22 12:30:10 -08:00