Received: by 2002:a05:6a10:9e8c:0:0:0:0 with SMTP id y12csp786098pxx; Mon, 26 Oct 2020 23:38:00 -0700 (PDT) X-Google-Smtp-Source: ABdhPJy60Zv3CRKvIKzZr6Q4Zwnn0Eq9cNSYV42JAD3EkvbtDw9ddgQx3mdw4mnQuqFkcpTeNqNr X-Received: by 2002:a50:99c3:: with SMTP id n3mr649584edb.213.1603780680717; Mon, 26 Oct 2020 23:38:00 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1603780680; cv=none; d=google.com; s=arc-20160816; b=okXm+Q3vqvbIaBPrsxlzUAdCszr4ROIoChsN/POZqmBHgHTfzC+r+u40VPSFKsjYG/ xpnqkT1ew0jC+OtXf6Oc3U/GVK0++jHhPabGUsvC243HhD7uWEo+Uv+dPqWXgdE+7QwR mHrlDR6ZxSrbX8J77hUTG7z5BWRE3vWkvGxn+JkO1K61sXvz4MHtM/v9aiAt9fC815Ho s72yDIQZQ6V6/fO9mjZZb05V3f/vMFKJi/6OZ2vh20aMTw07WIA6IRsN8wSV1mL6CZT6 lojDe9B6n2IDrd67LkBzEIJ/Ob/Xqg/6Ccfi2NZhavf1nTkCekKYkViWlKhARCPUNRij R5hQ== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:content-transfer-encoding:mime-version :references:in-reply-to:message-id:date:subject:cc:to:from :dkim-signature; bh=WpHUrAPgtvykLbNUqJoiQH5IvwWNae01we6hX2LFxqI=; b=WADqlTTuU/PrsPDOXORioJDxhlbX/VK+NsrQlr3H4TdPxNEP4PgybndmujELIhHJUA QsUja3rGkneJR5vWutJEUvmJogUE+KFQvDex8v2nthj8JXmMj20CoWyvKe5sca8SyotY biXAClIwbY7BY2QLRU3xx+8xeNszMk0R993zwtf1uuuV4VDOAYkR/1CBGpXOuR4HUQNb QTBfErUn3fonPZqaz1bUlaDKQwsv3lX7BHEvc5zd89/SQfM4c2f73Xvlpa/tNkr5c/3+ RuSWHUmVT37UgTTYv7I+Not+hvCC0e+251yksvvl1zgc+06rt/3e+wDoehllLVDdg54v IwQw== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@kernel.org header.s=default header.b=uQJ0NaES; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=kernel.org Return-Path: Received: from vger.kernel.org (vger.kernel.org. [23.128.96.18]) by mx.google.com with ESMTP id v5si211997edl.218.2020.10.26.23.37.38; Mon, 26 Oct 2020 23:38:00 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18; Authentication-Results: mx.google.com; dkim=pass header.i=@kernel.org header.s=default header.b=uQJ0NaES; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729043AbgJZTvi (ORCPT + 99 others); Mon, 26 Oct 2020 15:51:38 -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 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@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; -- 2.29.0.rc1.297.gfa9743e501-goog