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[SPARC64]: Add missing cpus_empty() check in hypervisor xcall handling.
author
David S. Miller
<davem@sunset.davemloft.net>
Mon, 14 May 2007 09:01:52 +0000
(
02:01
-0700)
committer
David S. Miller
<davem@sunset.davemloft.net>
Mon, 14 May 2007 09:01:52 +0000
(
02:01
-0700)
Signed-off-by: David S. Miller <davem@davemloft.net>
arch/sparc64/kernel/smp.c
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diff --git
a/arch/sparc64/kernel/smp.c
b/arch/sparc64/kernel/smp.c
index
8087d67
..
24fdf1d
100644
(file)
--- a/
arch/sparc64/kernel/smp.c
+++ b/
arch/sparc64/kernel/smp.c
@@
-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.