Re: [PATCH v3] kvm: Use a bitmap for tracking used GSIs

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Alex Williamson wrote:
On Wed, 2009-05-13 at 10:04 +0300, Michael S. Tsirkin wrote:
On Tue, May 12, 2009 at 04:07:15PM -0600, Alex Williamson wrote:
@@ -286,6 +289,9 @@ kvm_context_t kvm_init(struct kvm_callbacks *callbacks,
 	int fd;
 	kvm_context_t kvm;
 	int r;
+#ifdef KVM_CAP_IRQ_ROUTING
Let's kill all these ifdefs. Or at least, let's not add them.

AFAICT, they're still used both for builds against older kernels and
architectures that don't support it.  Hollis just added the one around
kvm_get_irq_route_gsi() 10 days ago to fix ppc build.  Has it since been
deprecated?  Thanks,

They are somewhat documentary. They used to be needed since we supported building against any kernel header, but aren't strictly needed now. Let's keep them until we have Documentation/kvm/extensions.txt.

--
Do not meddle in the internals of kernels, for they are subtle and quick to panic.

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