From patchwork Mon Oct 26 19:51:22 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jaegeuk Kim X-Patchwork-Id: 11858647 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id F0FA014B7 for ; Mon, 26 Oct 2020 19:51:37 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id D7BE620773 for ; Mon, 26 Oct 2020 19:51:37 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1603741897; bh=GdnDg70I0FbOI6oD/xlNrYATDeYPhO+xxXd+jEd3AtI=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=Oc3Fe5AH3BMmjdz04xNB2JWuZaKkvNHZc5xTZIaIHH/9Tuv4gtlNeBShOz/wfT4Iw 5unRZEMDb/oVkYLl1JZUvHMXCzcUuVx4kxsuNZIGXOUIpDajkpty+pJbI5zIeevp5D e41KXuNge0wZLgmHpy8iF4VNT3P3tUUoHX9wSsTQ= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728866AbgJZTvh (ORCPT ); Mon, 26 Oct 2020 15:51:37 -0400 Received: from mail.kernel.org ([198.145.29.99]:47568 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728896AbgJZTvd (ORCPT ); Mon, 26 Oct 2020 15:51:33 -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 784F621BE5; Mon, 26 Oct 2020 19:51:32 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1603741892; bh=GdnDg70I0FbOI6oD/xlNrYATDeYPhO+xxXd+jEd3AtI=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=uQJ0NaESczCCWEHj2EONZjmKhk/HmXB32QzJ65AVbUBk31drs7KshH+2GlyzKGGT5 mKW3VfxEiGBYFtxBZsttsuestgFrxNaWHXJRZygnUbUgJoBtXY0aE6Y3TRMK/LfYaJ JhWnHFfBTqqTvY0GfLvVVpvjRkOA3pov7gcEUBg4= From: Jaegeuk Kim To: linux-kernel@vger.kernel.org, linux-scsi@vger.kernel.org, kernel-team@android.com Cc: cang@codeaurora.org, alim.akhtar@samsung.com, avri.altman@wdc.com, bvanassche@acm.org, Jaegeuk Kim , Asutosh Das Subject: [PATCH v4 3/5] scsi: ufs: use WQ_HIGHPRI for gating work Date: Mon, 26 Oct 2020 12:51:22 -0700 Message-Id: <20201026195124.363096-4-jaegeuk@kernel.org> X-Mailer: git-send-email 2.29.0.rc1.297.gfa9743e501-goog In-Reply-To: <20201026195124.363096-1-jaegeuk@kernel.org> References: <20201026195124.363096-1-jaegeuk@kernel.org> MIME-Version: 1.0 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. Signed-off-by: Jaegeuk Kim Reviewed-by: Asutosh Das --- 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 8e696ca79b40..c45c0cff174e 100644 --- a/drivers/scsi/ufs/ufshcd.c +++ b/drivers/scsi/ufs/ufshcd.c @@ -1868,7 +1868,7 @@ 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;