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=-10.7 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,INCLUDES_CR_TRAILER,MAILING_LIST_MULTI,SPF_HELO_NONE, SPF_PASS,URIBL_BLOCKED,USER_AGENT_SANE_1 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 7F396C433C1 for ; Mon, 22 Mar 2021 15:31:02 +0000 (UTC) Received: from desiato.infradead.org (desiato.infradead.org [90.155.92.199]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 0116761931 for ; Mon, 22 Mar 2021 15:31:01 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 0116761931 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=kernel.org Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-nvme-bounces+linux-nvme=archiver.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=desiato.20200630; h=Sender:Content-Transfer-Encoding :Content-Type:List-Subscribe:List-Help:List-Post:List-Archive: List-Unsubscribe:List-Id:In-Reply-To:MIME-Version:References:Message-ID: Subject:Cc:To:From:Date:Reply-To:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=m9fBpb+ohdq6cBho8BBpD8ESSbPpdSzTE6sB5mY9Y2U=; b=kT8v0nqOTHj8fR2kxZmyh8ICf zIITnTfXvub38lhVluONslItIUJFRWNjLGR43wDWFlQOZmnbfjJer00RBDoO25iH2AXiNJv0wpuYQ MWkG0lHsaOkoY/udAKGHiPembnTM//kCBOuu1eaasD41cjZXPCydPU+nFkg1vfFTlL6qG1FUz787M R/BXzLPbaWGViBA0ScwAm++fc6DiQXJhs/m8dZfzmTLHVbygS6t6DX2XfKclg/sXyLFrc5xBj4pH+ zXMFZerPUtNRJtqipVb0mri2gu4rnsSXRTNWputhtfWciid8Ff0ASs3CTKFT3snWGhIfciGD3bM+H ogylbZAGw==; Received: from localhost ([::1] helo=desiato.infradead.org) by desiato.infradead.org with esmtp (Exim 4.94 #2 (Red Hat Linux)) id 1lOMVl-00BttK-OR; Mon, 22 Mar 2021 15:30:33 +0000 Received: from mail.kernel.org ([198.145.29.99]) by desiato.infradead.org with esmtps (Exim 4.94 #2 (Red Hat Linux)) id 1lOMVe-00Btsf-6V for linux-nvme@lists.infradead.org; Mon, 22 Mar 2021 15:30:28 +0000 Received: by mail.kernel.org (Postfix) with ESMTPSA id 0135161931; Mon, 22 Mar 2021 15:30:19 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1616427020; bh=2dO3ApbwwimsIPO8Z+7xEFYSB59RRiJapAD647NFm9c=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=Y7nYBh4GIXFvqrjoc4b0g9IswpzGsGE7BN01C1PxUwu/KMUa+tXhlRuRpUQcN69ho DHh3exXkwUBwVkxOUvMx/13IbO1FvrX1m1GyOXzBxmJrl+hDgsDwQdAQ45UxXn2GQV Mfnpd/v/rm46CRsKdudvzn6+0eZIqaOvGLkYKMUtJbqj+X35cceUA1PNUI4/Ar0BBB alqsrkBKxg6E1dyC61v1pQq56L+SK3di1EfeBjCEIWAjf0M4LPBAIm++u5hSaOm8wj HWBsu/95odYKCgqeb45AGOXjXWpR1EIy6VACtzqa32ErQ7NX6R4EKOGutcU5YPgAaX 2lLO/VZw/VojA== Date: Tue, 23 Mar 2021 00:30:13 +0900 From: Keith Busch To: Christoph Hellwig Cc: Sagi Grimberg , Jens Axboe , Chao Leng , linux-block@vger.kernel.org, linux-nvme@lists.infradead.org Subject: Re: [PATCH 1/2] blk-mq: add a blk_mq_submit_bio_direct API Message-ID: <20210322153013.GA17311@redsun51.ssa.fujisawa.hgst.com> References: <20210322073726.788347-1-hch@lst.de> <20210322073726.788347-2-hch@lst.de> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <20210322073726.788347-2-hch@lst.de> User-Agent: Mutt/1.12.1 (2019-06-15) X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20210322_153026_980256_196ADFC2 X-CRM114-Status: GOOD ( 11.83 ) 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: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "Linux-nvme" Errors-To: linux-nvme-bounces+linux-nvme=archiver.kernel.org@lists.infradead.org Looks good. Just a couple minor typo's in the commit message. Reviewed-by: Keith Busch On Mon, Mar 22, 2021 at 08:37:25AM +0100, Christoph Hellwig wrote: > This adds (back) and API for simple stacking drivers to submit a bio to an API > blk-mq queue. The prime aim is to avoid blocking on the queue freeze > percpu ref, as a multipath driver really does not want to get blocked > on that when an underlying device is undergoing error recovery. It also > happens to optimize away the small overhead of the curren->bio_list based current->bio_list _______________________________________________ Linux-nvme mailing list Linux-nvme@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-nvme