Commit c9960863 authored Feb 06, 2009 by Jeremy Fitzhardinge Committed by Ingo Molnar Feb 16, 2009

x86, xen: do multicall callbacks with interrupts disabled



We can't call the callbacks after enabling interrupts, as we may get a
nested multicall call, which would cause a great deal of havok.

Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

parent 3d39e9d0

arch/x86/xen/multicalls.c

+2 −2

Original line number	Diff line number	Diff line
		@@ -170,8 +170,6 @@ void xen_mc_flush(void)
		} else
		BUG_ON(b->argidx != 0);

		local_irq_restore(flags);

		for (i = 0; i < b->cbidx; i++) {
		struct callback *cb = &b->callbacks[i];

		@@ -179,6 +177,8 @@ void xen_mc_flush(void)
		}
		b->cbidx = 0;

		local_irq_restore(flags);

		WARN_ON(ret);
		}