Return-path: Received: from mail-pa0-f66.google.com ([209.85.220.66]:33244 "EHLO mail-pa0-f66.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751702AbcH3TFL (ORCPT ); Tue, 30 Aug 2016 15:05:11 -0400 Date: Wed, 31 Aug 2016 00:35:07 +0530 From: Bhaktipriya Shridhar To: Johannes Berg , "David S. Miller" Cc: Tejun Heo , linux-wireless@vger.kernel.org, netdev@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH v2] cfg80211: Remove deprecated create_singlethread_workqueue Message-ID: <20160830190507.GA11493@Karyakshetra> (sfid-20160830_210621_737718_A87F4A30) MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Sender: linux-wireless-owner@vger.kernel.org List-ID: The workqueue "cfg80211_wq" is involved in cleanup, scan and event related works. It queues multiple work items &rdev->event_work, &rdev->dfs_update_channels_wk, &wiphy_to_rdev(request->wiphy)->scan_done_wk, &wiphy_to_rdev(wiphy)->sched_scan_results_wk, which require strict execution ordering. Hence, an ordered dedicated workqueue has been used. Since it's a wireless driver, WQ_MEM_RECLAIM has been set to ensure forward progress under memory pressure. Signed-off-by: Bhaktipriya Shridhar --- net/wireless/core.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/net/wireless/core.c b/net/wireless/core.c index d25c82b..2cd4563 100644 --- a/net/wireless/core.c +++ b/net/wireless/core.c @@ -1218,7 +1218,7 @@ static int __init cfg80211_init(void) if (err) goto out_fail_reg; - cfg80211_wq = create_singlethread_workqueue("cfg80211"); + cfg80211_wq = alloc_ordered_workqueue("cfg80211", WQ_MEM_RECLAIM); if (!cfg80211_wq) { err = -ENOMEM; goto out_fail_wq; -- 2.1.4