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x86, xen: do multicall callbacks with interrupts disabled

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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>
This commit is contained in:
Jeremy Fitzhardinge 2009-02-06 13:38:56 -08:00 committed by Ingo Molnar
parent 3d39e9d07b
commit c99608637e
1 changed files with 2 additions and 2 deletions
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4
arch/x86/xen/multicalls.c
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@ -170,8 +170,6 @@ void xen_mc_flush(void)
} else } else
BUG_ON(b->argidx != 0); BUG_ON(b->argidx != 0);
local_irq_restore(flags);
for (i = 0; i < b->cbidx; i++) { for (i = 0; i < b->cbidx; i++) {
struct callback *cb = &b->callbacks[i]; struct callback *cb = &b->callbacks[i];
@ -179,6 +177,8 @@ void xen_mc_flush(void)
} }
b->cbidx = 0; b->cbidx = 0;
local_irq_restore(flags);
WARN_ON(ret); WARN_ON(ret);
} }