Sean Christopherson 7e513617da KVM: Rework core loop of kvm_vcpu_on_spin() to use a single for-loop ... Rework kvm_vcpu_on_spin() to use a single for-loop instead of making "two" passes over all vCPUs. Given N=kvm->last_boosted_vcpu, the logic is to iterate from vCPU[N+1]..vcpu[N-1], i.e. using two loops is just a kludgy way of handling the wrap from the last vCPU to vCPU0 when a boostable vCPU isn't found in vcpu[N+1]..vcpu[MAX]. Open code the xa_load() instead of using kvm_get_vcpu() to avoid reading online_vcpus in every loop, as well as the accompanying smp_rmb(), i.e. make it a custom kvm_for_each_vcpu(), for all intents and purposes. Oppurtunistically clean up the comment explaining the logic. Link: https://lore.kernel.org/r/20240802202121.341348-1-seanjc@google.com Signed-off-by: Sean Christopherson <seanjc@google.com>		2024-10-30 14:27:51 -07:00
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kvm	KVM: Rework core loop of kvm_vcpu_on_spin() to use a single for-loop	2024-10-30 14:27:51 -07:00
lib	Revert "irqbypass: do not start cons/prod when failed connect"	2021-05-15 10:26:55 +01:00
Makefile	treewide: Add SPDX license identifier - Makefile/Kconfig	2019-05-21 10:50:46 +02:00