Commit e06ffa1e authored by Lai Jiangshan's avatar Lai Jiangshan Committed by Tejun Heo

workqueue: use percpu allocator for cwq on UP

I notice that the commit bbddff makes percpu allocator can work on UP,
So we don't need the magic way for UP.
Signed-off-by: default avatarLai Jiangshan <laijs@cn.fujitsu.com>
Signed-off-by: default avatarTejun Heo <tj@kernel.org>
parent fde7d904
......@@ -474,13 +474,8 @@ static struct cpu_workqueue_struct *get_cwq(unsigned int cpu,
struct workqueue_struct *wq)
{
if (!(wq->flags & WQ_UNBOUND)) {
if (likely(cpu < nr_cpu_ids)) {
#ifdef CONFIG_SMP
if (likely(cpu < nr_cpu_ids))
return per_cpu_ptr(wq->cpu_wq.pcpu, cpu);
#else
return wq->cpu_wq.single;
#endif
}
} else if (likely(cpu == WORK_CPU_UNBOUND))
return wq->cpu_wq.single;
return NULL;
......@@ -2897,13 +2892,8 @@ static int alloc_cwqs(struct workqueue_struct *wq)
const size_t size = sizeof(struct cpu_workqueue_struct);
const size_t align = max_t(size_t, 1 << WORK_STRUCT_FLAG_BITS,
__alignof__(unsigned long long));
#ifdef CONFIG_SMP
bool percpu = !(wq->flags & WQ_UNBOUND);
#else
bool percpu = false;
#endif
if (percpu)
if (!(wq->flags & WQ_UNBOUND))
wq->cpu_wq.pcpu = __alloc_percpu(size, align);
else {
void *ptr;
......@@ -2927,13 +2917,7 @@ static int alloc_cwqs(struct workqueue_struct *wq)
static void free_cwqs(struct workqueue_struct *wq)
{
#ifdef CONFIG_SMP
bool percpu = !(wq->flags & WQ_UNBOUND);
#else
bool percpu = false;
#endif
if (percpu)
if (!(wq->flags & WQ_UNBOUND))
free_percpu(wq->cpu_wq.pcpu);
else if (wq->cpu_wq.single) {
/* the pointer to free is stored right after the cwq */
......
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