The current usage of get_online_cpus()/put_online_cpus()
in show_interrupts() is not correct since show_interrupts()
will be called nr_irqs times, during that period, cpu hotplug
could also happen.
Since have moved the protection to upper(patch#1), the pair of
get_online_cpus()/put_online_cpus() could be removed here.
Signed-off-by: Yong Zhang <yong.zhang0@xxxxxxxxx>
Cc: Martin Schwidefsky <schwidefsky@xxxxxxxxxx>
Cc: Heiko Carstens <heiko.carstens@xxxxxxxxxx>
---
arch/s390/kernel/irq.c | 2 --
1 files changed, 0 insertions(+), 2 deletions(-)
diff --git a/arch/s390/kernel/irq.c b/arch/s390/kernel/irq.c
index e3264f6..57c036d 100644
--- a/arch/s390/kernel/irq.c
+++ b/arch/s390/kernel/irq.c
@@ -63,7 +63,6 @@ int show_interrupts(struct seq_file *p, void *v)
{
int i = *(loff_t *) v, j;
- get_online_cpus();
if (i == 0) {
seq_puts(p, " ");
for_each_online_cpu(j)
@@ -83,7 +82,6 @@ int show_interrupts(struct seq_file *p, void *v)
seq_printf(p, " %s", intrclass_names[i].desc);
seq_putc(p, '\n');
}
- put_online_cpus();
return 0;
}
--
1.7.4.1
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