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KVM: arm/arm64: Release kvm->mmu_lock in loop to prevent starvation
authorJiang Yi <giangyi@amazon.com>
Wed, 15 Apr 2020 08:42:29 +0000 (10:42 +0200)
committerMarc Zyngier <maz@kernel.org>
Sat, 16 May 2020 14:05:02 +0000 (15:05 +0100)
commit48c963e31bc664afafd31058483ea8390da63980
treeea1d9f3105a9cfd2892d11f04184ca6c5855e789tree | snapshot
parent892713e97ca146591515b3c115f99cdf632030fbcommit | diff
KVM: arm/arm64: Release kvm->mmu_lock in loop to prevent starvation

Do cond_resched_lock() in stage2_flush_memslot() like what is done in
unmap_stage2_range() and other places holding mmu_lock while processing
a possibly large range of memory.

Signed-off-by: Jiang Yi <giangyi@amazon.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Reviewed-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Link: https://lore.kernel.org/r/20200415084229.29992-1-giangyi@amazon.com
arch/arm64/kvm/mmu.c diff | blob | history
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