netdev - [PATCH] net/mlx5_core/pagealloc: Remove deprecated create_singlethread

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Message-ID: <20160728081949.GA5561@Karyakshetra>
Date:	Thu, 28 Jul 2016 13:49:49 +0530
From:	Bhaktipriya Shridhar <bhaktipriya96@...il.com>
To:	Matan Barak <matanb@...lanox.com>,
	Leon Romanovsky <leonro@...lanox.com>
Cc:	netdev@...r.kernel.org, linux-rdma@...r.kernel.org,
	linux-kernel@...r.kernel.org, Tejun Heo <tj@...nel.org>
Subject: [PATCH] net/mlx5_core/pagealloc: Remove deprecated
 create_singlethread_workqueue

A dedicated workqueue has been used since the work items are being used
on a memory reclaim path. WQ_MEM_RECLAIM has been set to guarantee forward
progress under memory pressure.

The workqueue has a single work item. Hence, alloc_workqueue() is used
instead of alloc_ordered_workqueue() since ordering is unnecessary when
there's only one work item.

Explicit concurrency limit is unnecessary here since there are only a
fixed number of work items.

Signed-off-by: Bhaktipriya Shridhar <bhaktipriya96@...il.com>
---
 drivers/net/ethernet/mellanox/mlx5/core/pagealloc.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/pagealloc.c b/drivers/net/ethernet/mellanox/mlx5/core/pagealloc.c
index 9eeee05..7c85262 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/pagealloc.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/pagealloc.c
@@ -552,7 +552,8 @@ void mlx5_pagealloc_cleanup(struct mlx5_core_dev *dev)

 int mlx5_pagealloc_start(struct mlx5_core_dev *dev)
 {
-	dev->priv.pg_wq = create_singlethread_workqueue("mlx5_page_allocator");
+	dev->priv.pg_wq = alloc_workqueue("mlx5_page_allocator",
+					  WQ_MEM_RECLAIM, 0);
 	if (!dev->priv.pg_wq)
 		return -ENOMEM;

--
2.1.4