From mboxrd@z Thu Jan 1 00:00:00 1970 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=-13.1 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,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 A609CC433E6 for ; Mon, 31 Aug 2020 15:33:19 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 65E88207EA for ; Mon, 31 Aug 2020 15:33:19 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1598887999; bh=MwxD5VJzHt3uN3NMF6cZstG6zJoHeJtlRavYi1XCW/4=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=cWVW6YroTT7Ds5dHnxCCdkjqsMoDqPpdf0GjpDF0q+L5/arN6fhKqer3Gj93HS40q Xnykx/fh8bFF82DktSH1Wm3N5dX3+/fFuXcMRGJylVIJXexWVAQdyO2n7cGB1gzUkC +xUVwUFNCm1qqw2X3w3gQLYKmrvnkAuk+XXsJoiM= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728679AbgHaPdR (ORCPT ); Mon, 31 Aug 2020 11:33:17 -0400 Received: from mail.kernel.org ([198.145.29.99]:43228 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1729017AbgHaPb4 (ORCPT ); Mon, 31 Aug 2020 11:31:56 -0400 Received: from sasha-vm.mshome.net (c-73-47-72-35.hsd1.nh.comcast.net [73.47.72.35]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id F187F2158C; Mon, 31 Aug 2020 15:31:54 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1598887916; bh=MwxD5VJzHt3uN3NMF6cZstG6zJoHeJtlRavYi1XCW/4=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=AXOIdLCO3UAHTyvRHpp+x/YinvY95tertdXrWiWrNYb+EzLCO+2Utbkg7PHrvCDQy FO4ib3D9w8x2JSqob7LfGJbdDCYJZZBuMaBbeg5y6I5J/d9xcuFjbKW4PN6SWuaRpr z3dD97ADekVOrFztYYm5JuSETWBJNkgBg9tHImLc= From: Sasha Levin To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: Amit Engel , Sagi Grimberg , Jens Axboe , Sasha Levin , linux-nvme@lists.infradead.org Subject: [PATCH AUTOSEL 4.9 3/6] nvmet: Disable keep-alive timer when kato is cleared to 0h Date: Mon, 31 Aug 2020 11:31:46 -0400 Message-Id: <20200831153150.1024799-3-sashal@kernel.org> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20200831153150.1024799-1-sashal@kernel.org> References: <20200831153150.1024799-1-sashal@kernel.org> MIME-Version: 1.0 X-stable: review X-Patchwork-Hint: Ignore Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Amit Engel [ Upstream commit 0d3b6a8d213a30387b5104b2fb25376d18636f23 ] Based on nvme spec, when keep alive timeout is set to zero the keep-alive timer should be disabled. Signed-off-by: Amit Engel Signed-off-by: Sagi Grimberg Signed-off-by: Jens Axboe Signed-off-by: Sasha Levin --- drivers/nvme/target/core.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/drivers/nvme/target/core.c b/drivers/nvme/target/core.c index 96ea6c76be6e5..63b87a8472762 100644 --- a/drivers/nvme/target/core.c +++ b/drivers/nvme/target/core.c @@ -205,6 +205,9 @@ static void nvmet_keep_alive_timer(struct work_struct *work) static void nvmet_start_keep_alive_timer(struct nvmet_ctrl *ctrl) { + if (unlikely(ctrl->kato == 0)) + return; + pr_debug("ctrl %d start keep-alive timer for %d secs\n", ctrl->cntlid, ctrl->kato); @@ -214,6 +217,9 @@ static void nvmet_start_keep_alive_timer(struct nvmet_ctrl *ctrl) static void nvmet_stop_keep_alive_timer(struct nvmet_ctrl *ctrl) { + if (unlikely(ctrl->kato == 0)) + return; + pr_debug("ctrl %d stop keep-alive\n", ctrl->cntlid); cancel_delayed_work_sync(&ctrl->ka_work); -- 2.25.1