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authorliguang <lig.fnst@cn.fujitsu.com>2013-04-30 15:27:26 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2013-04-30 17:04:03 -0700
commit3440a1ca99707f093e9568ba9762764d3162dd8f (patch)
treeaf5508d1bd5ff76eb22830a1abea77f0a76639a5
parent1def1dc91715acdb6dddfaed1a44149d42d8063c (diff)
kernel/smp.c: remove 'priv' of call_single_data
The 'priv' field is redundant; we can pass data via 'info'. Signed-off-by: liguang <lig.fnst@cn.fujitsu.com> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Oleg Nesterov <oleg@redhat.com> Cc: Ingo Molnar <mingo@elte.hu> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
-rw-r--r--include/linux/smp.h1
-rw-r--r--kernel/softirq.c6
2 files changed, 2 insertions, 5 deletions
diff --git a/include/linux/smp.h b/include/linux/smp.h
index 3e07a7df647..e6564c1dc55 100644
--- a/include/linux/smp.h
+++ b/include/linux/smp.h
@@ -20,7 +20,6 @@ struct call_single_data {
smp_call_func_t func;
void *info;
u16 flags;
- u16 priv;
};
/* total number of cpus in this system (may exceed NR_CPUS) */
diff --git a/kernel/softirq.c b/kernel/softirq.c
index 14d7758074a..aa82723c720 100644
--- a/kernel/softirq.c
+++ b/kernel/softirq.c
@@ -620,8 +620,7 @@ static void remote_softirq_receive(void *data)
unsigned long flags;
int softirq;
- softirq = cp->priv;
-
+ softirq = *(int *)cp->info;
local_irq_save(flags);
__local_trigger(cp, softirq);
local_irq_restore(flags);
@@ -631,9 +630,8 @@ static int __try_remote_softirq(struct call_single_data *cp, int cpu, int softir
{
if (cpu_online(cpu)) {
cp->func = remote_softirq_receive;
- cp->info = cp;
+ cp->info = &softirq;
cp->flags = 0;
- cp->priv = softirq;
__smp_call_function_single(cpu, cp, 0);
return 0;