[PATCH 0/2] arm64: Fix issues with CPU hotplug and RCU

From: Will Deacon
Date: Fri Nov 06 2020 - 05:36:11 EST


Hi folks,

Here are a couple of patches following on from:

https://lore.kernel.org/r/20201105222242.GA8842@willie-the-truck

which address issues when CPU onlining fails but RCU is left none the
wiser. Tested under QEMU.

If Paul is happy with the second patch, then I can take both of these
via arm64 as fixes for 5.11.

Cheers,

Will

Cc: Catalin Marinas <catalin.marinas@xxxxxxx>
Cc: Qian Cai <cai@xxxxxxxxxx>
Cc: "Paul E. McKenney" <paulmck@xxxxxxxxxx>

--->8

Will Deacon (2):
arm64: psci: Avoid printing in cpu_psci_cpu_die()
arm64: smp: Tell RCU about CPUs that fail to come online

arch/arm64/kernel/psci.c | 2 --
arch/arm64/kernel/smp.c | 1 +
kernel/rcu/tree.c | 2 +-
3 files changed, 2 insertions(+), 3 deletions(-)

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2.29.1.341.ge80a0c044ae-goog