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[SPARC64]: Add missing cpus_empty() check in hypervisor xcall handling.

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Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
David S. Miller 2007-05-14 02:01:52 -07:00
parent ec6fb1ad84
commit 17f34f0ec9
1 changed files with 3 additions and 0 deletions
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3
arch/sparc64/kernel/smp.c
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@ -561,6 +561,9 @@ static void hypervisor_xcall_deliver(u64 data0, u64 data1, u64 data2, cpumask_t
unsigned long flags, status;
int cnt, retries, this_cpu, prev_sent, i;
if (cpus_empty(mask))
return;
/* We have to do this whole thing with interrupts fully disabled.
* Otherwise if we send an xcall from interrupt context it will
* corrupt both our mondo block and cpu list state.