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riscv: cpu-hotplug: clear cpu from numa map when teardown

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commit f40fe31c01445f31253b15bef2412b33ae31093b upstream.

There is numa_add_cpu() when cpus online, accordingly, there should be
numa_remove_cpu() when cpus offline.

Signed-off-by: Pingfan Liu <kernelfans@gmail.com>
Fixes: 4f0e8eef772e ("riscv: Add numa support for riscv64 platform")
Cc: stable@vger.kernel.org
[Palmer: Add missing NUMA include]
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Pingfan Liu 2022-01-23 20:13:52 +08:00 committed by Greg Kroah-Hartman
parent 7486227fa4
commit efe2203371
1 changed files with 2 additions and 0 deletions
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2
arch/riscv/kernel/cpu-hotplug.c
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@ -12,6 +12,7 @@
#include <linux/sched/hotplug.h>
#include <asm/irq.h>
#include <asm/cpu_ops.h>
#include <asm/numa.h>
#include <asm/sbi.h>
void cpu_stop(void);
@ -46,6 +47,7 @@ int __cpu_disable(void)
return ret;
remove_cpu_topology(cpu);
numa_remove_cpu(cpu);
set_cpu_online(cpu, false);
irq_migrate_all_off_this_cpu();