From patchwork Tue Sep 15 20:45:29 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jaegeuk Kim X-Patchwork-Id: 296749 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-16.1 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED, DKIM_VALID, DKIM_VALID_AU, INCLUDES_PATCH, MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id C0815C43461 for ; Tue, 15 Sep 2020 20:53:47 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 701CE20809 for ; Tue, 15 Sep 2020 20:53:47 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1600203227; bh=NOLqD59ZXyc/29xCULK3dghDfnH/zVdAa3vvLnNbexQ=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=lpLStLEJVSG9snWKlYH5ytkne4L47jgHDohMwoumE7pnOC9rJ9WNTdGujgZ9/c5VK FkaierPfS8zU3K6hzcmvW5CDKe0p/aBww1AaOEEgiM1DLace8YSL3LRFAjjgvbGzOU qhmwvVBk5tkB9Rx/bJVY2aojnGu4GI4JfHmjnPfg= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727923AbgIOUxc (ORCPT ); Tue, 15 Sep 2020 16:53:32 -0400 Received: from mail.kernel.org ([198.145.29.99]:42694 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728078AbgIOUqh (ORCPT ); Tue, 15 Sep 2020 16:46:37 -0400 Received: from localhost (unknown [104.132.1.66]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 5F87620771; Tue, 15 Sep 2020 20:46:37 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1600202797; bh=NOLqD59ZXyc/29xCULK3dghDfnH/zVdAa3vvLnNbexQ=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=BvJpNvDXs/tHKPSODHFGSmNMOIiMaLoVGbQdvVWU1ukJHP8Y9LXn2QWOnyanJyg4o x6i5/OeM1HiUgTUXIORPJb78N41aG+tvpX7TCMCskcQL7ZRL9yhLZeD/kR+6IqhmYu fGdgDNxhba/zQtaaWzREvL+ndA2H2+xvPrvIyUZg= From: Jaegeuk Kim To: linux-kernel@vger.kernel.org, linux-scsi@vger.kernel.org, kernel-team@android.com Cc: Jaegeuk Kim , Alim Akhtar , Avri Altman Subject: [PATCH 3/6] scsi: ufs: use WQ_HIGHPRI for gating work Date: Tue, 15 Sep 2020 13:45:29 -0700 Message-Id: <20200915204532.1672300-3-jaegeuk@kernel.org> X-Mailer: git-send-email 2.28.0.618.gf4bc123cb7-goog In-Reply-To: <20200915204532.1672300-1-jaegeuk@kernel.org> References: <20200915204532.1672300-1-jaegeuk@kernel.org> MIME-Version: 1.0 Sender: linux-scsi-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-scsi@vger.kernel.org From: Jaegeuk Kim Must have WQ_MEM_RECLAIM ``WQ_MEM_RECLAIM`` All wq which might be used in the memory reclaim paths **MUST** have this flag set. The wq is guaranteed to have at least one execution context regardless of memory pressure. Cc: Alim Akhtar Cc: Avri Altman Signed-off-by: Jaegeuk Kim --- drivers/scsi/ufs/ufshcd.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c index 5deba03a61f75..848e33ec40639 100644 --- a/drivers/scsi/ufs/ufshcd.c +++ b/drivers/scsi/ufs/ufshcd.c @@ -1849,7 +1849,7 @@ static void ufshcd_init_clk_gating(struct ufs_hba *hba) snprintf(wq_name, ARRAY_SIZE(wq_name), "ufs_clk_gating_%d", hba->host->host_no); hba->clk_gating.clk_gating_workq = alloc_ordered_workqueue(wq_name, - WQ_MEM_RECLAIM); + WQ_MEM_RECLAIM | WQ_HIGHPRI); hba->clk_gating.is_enabled = true;