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 Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 8EC1AC19F2B for ; Fri, 29 Jul 2022 14:26:19 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:In-Reply-To:Content-Type: MIME-Version:References:Message-ID:Subject:Cc:To:From:Date:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=5SNFZDR+eWusS3z03Ow61rpeVh77tuH21FVeXb1bMds=; b=e03nxdNdVTX6DDEICkdt2ZoDvy R0nkIhvnZ9flrrq42mwXlvb+a4EhRpeQl0B80yOHSiBkEI8jE4ZmqOhoVAzhoLnTxPOxxQZDuyqYU jJqLNZ7AcQJ7qVD9qNIUNHMeCP7HeumxaI6Kt6z8VQc0QTlO6YjFTjvTAFPS9wOZMko3+n9q7v5Dc Dan+eIvC99KA1UAAEB7wZeDtJv61YZKKaGnLX5gRUbyz2FJyzO2C7jcUarrC/nV6cqwrZMOjaMO4e 74hDa6VTbiq9xja2yezNGaiH3/fDnSSL/V0rJJCyeteNOfTqjm+qRiUwZDZEO9zffc5r0gLsst1Qh DOIQ+iKQ==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1oHQwP-005V2X-DJ; Fri, 29 Jul 2022 14:26:13 +0000 Received: from verein.lst.de ([213.95.11.211]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1oHQwM-005V0d-Ef for linux-nvme@lists.infradead.org; Fri, 29 Jul 2022 14:26:11 +0000 Received: by verein.lst.de (Postfix, from userid 2407) id 8205068AA6; Fri, 29 Jul 2022 16:26:05 +0200 (CEST) Date: Fri, 29 Jul 2022 16:26:05 +0200 From: Christoph Hellwig To: Chao Leng Cc: linux-nvme@lists.infradead.org, linux-block@vger.kernel.org, hch@lst.de, sagi@grimberg.me, kbusch@kernel.org, axboe@kernel.dk Subject: Re: [PATCH 0/3] improve nvme quiesce time for large amount of namespaces Message-ID: <20220729142605.GA395@lst.de> References: <20220729073948.32696-1-lengchao@huawei.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20220729073948.32696-1-lengchao@huawei.com> User-Agent: Mutt/1.5.17 (2007-11-01) X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20220729_072610_658782_7CD54E6E X-CRM114-Status: UNSURE ( 8.78 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-nvme@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "Linux-nvme" Errors-To: linux-nvme-bounces+linux-nvme=archiver.kernel.org@lists.infradead.org Why can't we have a per-tagset quiesce flag and just wait for the one? That also really nicely supports the problem with changes in the namespace list during that time.