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authorDavid S. Miller <davem@sunset.davemloft.net>2007-05-14 05:01:52 -0400
committerDavid S. Miller <davem@sunset.davemloft.net>2007-05-14 05:01:52 -0400
commit17f34f0ec96783851abcabf9878f8237ac67e4e7 (patch)
treecfdb3420a4b4b3142d762e8f75e5c904fd8a8c6a /arch/sparc64/kernel/smp.c
parentec6fb1ad84551741c14a05918cc0e04dea928fc0 (diff)
[SPARC64]: Add missing cpus_empty() check in hypervisor xcall handling.
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'arch/sparc64/kernel/smp.c')
-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
561 unsigned long flags, status; 561 unsigned long flags, status;
562 int cnt, retries, this_cpu, prev_sent, i; 562 int cnt, retries, this_cpu, prev_sent, i;
563 563
564 if (cpus_empty(mask))
565 return;
566
564 /* We have to do this whole thing with interrupts fully disabled. 567 /* We have to do this whole thing with interrupts fully disabled.
565 * Otherwise if we send an xcall from interrupt context it will 568 * Otherwise if we send an xcall from interrupt context it will
566 * corrupt both our mondo block and cpu list state. 569 * corrupt both our mondo block and cpu list state.