linux-kernel - Re: [PATCH] kvm: make vcpu life cycle separated from kvm instance

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Message-ID: <4EDC8F4B.7040308@redhat.com>
Date:	Mon, 05 Dec 2011 11:30:51 +0200
From:	Avi Kivity <avi@...hat.com>
To:	Liu ping fan <kernelfans@...il.com>
CC:	kvm@...r.kernel.org, linux-kernel@...r.kernel.org,
	aliguori@...ibm.com, gleb@...hat.com, jan.kiszka@....de
Subject: Re: [PATCH] kvm: make vcpu life cycle separated from kvm instance

On 12/05/2011 07:29 AM, Liu ping fan wrote:
> like this,
> #define kvm_for_each_vcpu(idx, cnt, vcpup, kvm) \
> 	for (idx = 0, cnt = 0, vcpup = kvm_get_vcpu(kvm, idx); \
> 	     cnt < atomic_read(&kvm->online_vcpus) && \
> 	     idx < KVM_MAX_VCPUS; \
> 	     idx++, (vcpup == NULL)?:cnt++, vcpup = kvm_get_vcpu(kvm, idx)) \
> 	     if (vcpup == NULL) \
> 	          continue; \
> 	     else
>
>
> A little ugly, but have not thought a better way out :-)
>

#define kvm_for_each_vcpu(vcpu, it) for (vcpu = kvm_fev_init(&it); vcpu;
vcpu = kvm_fev_next(&it, vcpu))

Though that doesn't give a good place for rcu_read_unlock().



-- 
error compiling committee.c: too many arguments to function

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