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(parent: 5a0c086) | patch
hardirq/nmi: Allow nested nmi_enter()
authorPeter Zijlstra <peterz@infradead.org>
Wed, 19 Feb 2020 08:46:47 +0000 (09:46 +0100)
committerThomas Gleixner <tglx@linutronix.de>
Tue, 19 May 2020 13:51:17 +0000 (15:51 +0200)
commit362de9362d32f313a9a0d4c07799abd67c073c04
treef5070915d8d90d28e70b6a467db88c69a73d803etree | snapshot
parent5a0c086c15b2d8d237c8dc7a42cb27f59e1db093commit | diff
hardirq/nmi: Allow nested nmi_enter()

Since there are already a number of sites (ARM64, PowerPC) that effectively
nest nmi_enter(), make the primitive support this before adding even more.

Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Marc Zyngier <maz@kernel.org>
Acked-by: Will Deacon <will@kernel.org>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lkml.kernel.org/r/20200505134100.864179229@linutronix.de
arch/arm64/kernel/sdei.c diff | blob | history
arch/arm64/kernel/traps.c diff | blob | history
arch/powerpc/kernel/traps.c diff | blob | history
include/linux/hardirq.h diff | blob | history
include/linux/preempt.h diff | blob | history
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