From: Heiko Carstens <heiko.carstens@xxxxxxxxxx>
Surround all the code withing show_interrupts() with
get/put_online_cpus() to prevent strange results wrt cpu hotplug.
Signed-off-by: Heiko Carstens <heiko.carstens@xxxxxxxxxx>
Signed-off-by: Martin Schwidefsky <schwidefsky@xxxxxxxxxx>
---
arch/s390/kernel/irq.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
Index: quilt-2.6/arch/s390/kernel/irq.c
===================================================================
--- quilt-2.6.orig/arch/s390/kernel/irq.c
+++ quilt-2.6/arch/s390/kernel/irq.c
@@ -25,6 +25,7 @@ int show_interrupts(struct seq_file *p,
static const char *intrclass_names[] = { "EXT", "I/O", };
int i = *(loff_t *) v, j;
+ get_online_cpus();
if (i == 0) {
seq_puts(p, " ");
for_each_online_cpu(j)
@@ -43,7 +44,7 @@ int show_interrupts(struct seq_file *p,
seq_putc(p, '\n');
}
-
+ put_online_cpus();
return 0;
}
--
blue skies,
Martin.
"Reality continues to ruin my life." - Calvin.
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