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Groups > linux.kernel > #1472629 > unrolled thread

[PATCH] bonding: Remove deprecated create_singlethread_workqueue

Started byBhaktipriya Shridhar <bhaktipriya96@gmail.com>
First post2016-08-30 18:40 +0200
Last post2016-09-02 01:50 +0200
Articles 3 — 3 participants

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  [PATCH] bonding: Remove deprecated create_singlethread_workqueue Bhaktipriya Shridhar <bhaktipriya96@gmail.com> - 2016-08-30 18:40 +0200
    Re: [PATCH] bonding: Remove deprecated create_singlethread_workqueue Tejun Heo <tj@kernel.org> - 2016-08-31 16:10 +0200
    Re: [PATCH] bonding: Remove deprecated  create_singlethread_workqueue David Miller <davem@davemloft.net> - 2016-09-02 01:50 +0200

#1472629 — [PATCH] bonding: Remove deprecated create_singlethread_workqueue

FromBhaktipriya Shridhar <bhaktipriya96@gmail.com>
Date2016-08-30 18:40 +0200
Subject[PATCH] bonding: Remove deprecated create_singlethread_workqueue
Message-ID<sbUeS-7ka-13@gated-at.bofh.it>
alloc_ordered_workqueue() with WQ_MEM_RECLAIM set, replaces
deprecated create_singlethread_workqueue(). This is the identity
conversion.

The workqueue "wq" queues multiple work items viz
&bond->mcast_work, &nnw->work, &bond->mii_work, &bond->arp_work,
&bond->alb_work, &bond->mii_work, &bond->ad_work, &bond->slave_arr_work
which require strict execution ordering. Hence, an ordered dedicated
workqueue has been used.

Since, it is a network driver, WQ_MEM_RECLAIM has been set to
ensure forward progress under memory pressure.

Signed-off-by: Bhaktipriya Shridhar <bhaktipriya96@gmail.com>
---
 drivers/net/bonding/bond_main.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c
index 941ec99..ebaf1a9 100644
--- a/drivers/net/bonding/bond_main.c
+++ b/drivers/net/bonding/bond_main.c
@@ -4635,7 +4635,7 @@ static int bond_init(struct net_device *bond_dev)

 	netdev_dbg(bond_dev, "Begin bond_init\n");

-	bond->wq = create_singlethread_workqueue(bond_dev->name);
+	bond->wq = alloc_ordered_workqueue(bond_dev->name, WQ_MEM_RECLAIM);
 	if (!bond->wq)
 		return -ENOMEM;

--
2.1.4

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#1473511

FromTejun Heo <tj@kernel.org>
Date2016-08-31 16:10 +0200
Message-ID<sceng-3nc-27@gated-at.bofh.it>
In reply to#1472629
On Tue, Aug 30, 2016 at 10:02:01PM +0530, Bhaktipriya Shridhar wrote:
> alloc_ordered_workqueue() with WQ_MEM_RECLAIM set, replaces
> deprecated create_singlethread_workqueue(). This is the identity
> conversion.
> 
> The workqueue "wq" queues multiple work items viz
> &bond->mcast_work, &nnw->work, &bond->mii_work, &bond->arp_work,
> &bond->alb_work, &bond->mii_work, &bond->ad_work, &bond->slave_arr_work
> which require strict execution ordering. Hence, an ordered dedicated
> workqueue has been used.
> 
> Since, it is a network driver, WQ_MEM_RECLAIM has been set to
> ensure forward progress under memory pressure.
> 
> Signed-off-by: Bhaktipriya Shridhar <bhaktipriya96@gmail.com>

Acked-by: Tejun Heo <tj@kernel.org>

Thanks.

-- 
tejun

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#1474807 — Re: [PATCH] bonding: Remove deprecated create_singlethread_workqueue

FromDavid Miller <davem@davemloft.net>
Date2016-09-02 01:50 +0200
SubjectRe: [PATCH] bonding: Remove deprecated create_singlethread_workqueue
Message-ID<scJU5-8tP-5@gated-at.bofh.it>
In reply to#1472629
From: Bhaktipriya Shridhar <bhaktipriya96@gmail.com>
Date: Tue, 30 Aug 2016 22:02:01 +0530

> alloc_ordered_workqueue() with WQ_MEM_RECLAIM set, replaces
> deprecated create_singlethread_workqueue(). This is the identity
> conversion.
> 
> The workqueue "wq" queues multiple work items viz
> &bond->mcast_work, &nnw->work, &bond->mii_work, &bond->arp_work,
> &bond->alb_work, &bond->mii_work, &bond->ad_work, &bond->slave_arr_work
> which require strict execution ordering. Hence, an ordered dedicated
> workqueue has been used.
> 
> Since, it is a network driver, WQ_MEM_RECLAIM has been set to
> ensure forward progress under memory pressure.
> 
> Signed-off-by: Bhaktipriya Shridhar <bhaktipriya96@gmail.com>

Applied.

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