linux-kernel - [RFC PATCH V4 3/5] workqueue: rename unbound

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Date:   Thu, 25 Jan 2018 15:01:42 +0800
From:   Wen Yang <wen.yang99@....com.cn>
To:     tj@...nel.org
Cc:     zhong.weidong@....com.cn, Jiang Biao <jiang.biao2@....com.cn>,
        Tan Hu <tan.hu@....com.cn>,
        Lai Jiangshan <jiangshanlai@...il.com>,
        kernel test robot <xiaolong.ye@...el.com>,
        linux-kernel@...r.kernel.org
Subject: [RFC PATCH V4 3/5] workqueue: rename unbound_attrs to attrs

Replace workqueue's unbound_attrs by attrs, so that both unbound
or bound wq can use it.

Signed-off-by: Wen Yang <wen.yang99@....com.cn>
Signed-off-by: Jiang Biao <jiang.biao2@....com.cn>
Signed-off-by: Tan Hu <tan.hu@....com.cn>
Suggested-by: Tejun Heo <tj@...nel.org>
Cc: Tejun Heo <tj@...nel.org>
Cc: Lai Jiangshan <jiangshanlai@...il.com>
Cc: kernel test robot <xiaolong.ye@...el.com>
Cc: linux-kernel@...r.kernel.org
---
 kernel/workqueue.c | 24 ++++++++----------------
 1 file changed, 8 insertions(+), 16 deletions(-)

diff --git a/kernel/workqueue.c b/kernel/workqueue.c
index 993f225..e1613d0 100644
--- a/kernel/workqueue.c
+++ b/kernel/workqueue.c
@@ -255,7 +255,6 @@ struct workqueue_struct {
 	int			nr_drainers;	/* WQ: drain in progress */
 	int			saved_max_active; /* WQ: saved pwq max_active */
 
-	struct workqueue_attrs	*unbound_attrs;	/* PW: only for unbound wqs */
 	struct workqueue_attrs  *attrs;
 	struct pool_workqueue	*dfl_pwq;	/* PW: only for unbound wqs */
 
@@ -3737,7 +3736,7 @@ static void apply_wqattrs_commit(struct apply_wqattrs_ctx *ctx)
 	/* all pwqs have been created successfully, let's install'em */
 	mutex_lock(&ctx->wq->mutex);
 
-	copy_workqueue_attrs(ctx->wq->unbound_attrs, ctx->attrs);
+	copy_workqueue_attrs(ctx->wq->attrs, ctx->attrs);
 
 	/* save the previous pwq and install the new one */
 	for_each_node(node)
@@ -3854,7 +3853,7 @@ static void wq_update_unbound_numa(struct workqueue_struct *wq, int cpu,
 	lockdep_assert_held(&wq_pool_mutex);
 
 	if (!wq_numa_enabled || !(wq->flags & WQ_UNBOUND) ||
-	    wq->unbound_attrs->no_numa)
+	    wq->attrs->no_numa)
 		return;
 
 	/*
@@ -3865,7 +3864,7 @@ static void wq_update_unbound_numa(struct workqueue_struct *wq, int cpu,
 	target_attrs = wq_update_unbound_numa_attrs_buf;
 	cpumask = target_attrs->cpumask;
 
-	copy_workqueue_attrs(target_attrs, wq->unbound_attrs);
+	copy_workqueue_attrs(target_attrs, wq->attrs);
 	pwq = unbound_pwq_by_node(wq, node);
 
 	/*
@@ -3985,12 +3984,6 @@ struct workqueue_struct *__alloc_workqueue_key(const char *fmt,
 	if (!wq)
 		return NULL;
 
-	if (flags & WQ_UNBOUND) {
-		wq->unbound_attrs = alloc_workqueue_attrs(GFP_KERNEL);
-		if (!wq->unbound_attrs)
-			goto err_free_wq;
-	}
-
 	wq->attrs = alloc_workqueue_attrs(GFP_KERNEL);
 	if (!wq->attrs)
 		goto err_free_wq;
@@ -4069,7 +4062,6 @@ struct workqueue_struct *__alloc_workqueue_key(const char *fmt,
 	return wq;
 
 err_free_wq:
-	free_workqueue_attrs(wq->unbound_attrs);
 	free_workqueue_attrs(wq->attrs);
 	kfree(wq);
 	return NULL;
@@ -4941,7 +4933,7 @@ static int workqueue_apply_unbound_cpumask(void)
 		if (wq->flags & __WQ_ORDERED)
 			continue;
 
-		ctx = apply_wqattrs_prepare(wq, wq->unbound_attrs);
+		ctx = apply_wqattrs_prepare(wq, wq->attrs);
 		if (!ctx) {
 			ret = -ENOMEM;
 			break;
@@ -5119,7 +5111,7 @@ static ssize_t wq_nice_show(struct device *dev, struct device_attribute *attr,
 	int written;
 
 	mutex_lock(&wq->mutex);
-	written = scnprintf(buf, PAGE_SIZE, "%d\n", wq->unbound_attrs->nice);
+	written = scnprintf(buf, PAGE_SIZE, "%d\n", wq->attrs->nice);
 	mutex_unlock(&wq->mutex);
 
 	return written;
@@ -5136,7 +5128,7 @@ static struct workqueue_attrs *wq_sysfs_prep_attrs(struct workqueue_struct *wq)
 	if (!attrs)
 		return NULL;
 
-	copy_workqueue_attrs(attrs, wq->unbound_attrs);
+	copy_workqueue_attrs(attrs, wq->attrs);
 	return attrs;
 }
 
@@ -5173,7 +5165,7 @@ static ssize_t wq_cpumask_show(struct device *dev,
 
 	mutex_lock(&wq->mutex);
 	written = scnprintf(buf, PAGE_SIZE, "%*pb\n",
-			    cpumask_pr_args(wq->unbound_attrs->cpumask));
+			    cpumask_pr_args(wq->attrs->cpumask));
 	mutex_unlock(&wq->mutex);
 	return written;
 }
@@ -5210,7 +5202,7 @@ static ssize_t wq_numa_show(struct device *dev, struct device_attribute *attr,
 
 	mutex_lock(&wq->mutex);
 	written = scnprintf(buf, PAGE_SIZE, "%d\n",
-			    !wq->unbound_attrs->no_numa);
+			    !wq->attrs->no_numa);
 	mutex_unlock(&wq->mutex);
 
 	return written;
-- 
1.8.3.1