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authorDavid S. Miller <davem@sunset.davemloft.net>2007-05-14 02:01:52 -0700
committerDavid S. Miller <davem@sunset.davemloft.net>2007-05-14 02:01:52 -0700
commit17f34f0ec96783851abcabf9878f8237ac67e4e7 (patch)
treecfdb3420a4b4b3142d762e8f75e5c904fd8a8c6a /arch
parentec6fb1ad84551741c14a05918cc0e04dea928fc0 (diff)
downloadlinux-17f34f0ec96783851abcabf9878f8237ac67e4e7.tar.bz2
[SPARC64]: Add missing cpus_empty() check in hypervisor xcall handling.
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'arch')
-rw-r--r--arch/sparc64/kernel/smp.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/arch/sparc64/kernel/smp.c b/arch/sparc64/kernel/smp.c
index 8087d67a0cf8..24fdf1d0adc5 100644
--- 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.