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=-6.8 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=no 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 11C40C433E0 for ; Wed, 3 Mar 2021 22:11:38 +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 7DBCB64EBB for ; Wed, 3 Mar 2021 22:11:37 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 7DBCB64EBB Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=lst.de 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:MIME-Version:Message-Id:Date:Subject:Cc:To:From: Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From:Resent-Sender :Resent-To:Resent-Cc:Resent-Message-ID:In-Reply-To:References:List-Owner; bh=BPTuZvg2LmvasJ0k6jAfGhh2H2Ub1WCk/6Si0h55iPY=; b=MaSs60gZZb6JAIZ/HHmY0tX9+U Rl6vRQyfnfTzXvjCazde2Y2mTg0oBx24yV5C1IeVQoaZniv7w3dbCTKSXQUwAaCJWSINDj9Hds6QT Fekmc3DxDGSaAlyluOB+DB4ewMo2/6tcyc3rkvcKWk2wGYsr6Z+42jYf3VWljvY22LuSKZQecr04X u3KnzriXH8C97yot/qnh7tEFBbGp2KNVlytD5BA/BPqb+iosOkJWFeexh3eyHDw7vrzQzponATTe4 yv39WZAfQUpM0z5ri4Xvw1bSgdi/4vCPlRUnxU/dXtfH1dkWE9O/YdBakF1JQJYd7ZIOrVRvZ12xl muEWpMVA==; Received: from localhost ([::1] helo=desiato.infradead.org) by desiato.infradead.org with esmtp (Exim 4.94 #2 (Red Hat Linux)) id 1lHZiF-006ich-1n; Wed, 03 Mar 2021 22:11:23 +0000 Received: from casper.infradead.org ([2001:8b0:10b:1236::1]) by desiato.infradead.org with esmtps (Exim 4.94 #2 (Red Hat Linux)) id 1lHTAq-005Kho-DA for linux-nvme@desiato.infradead.org; Wed, 03 Mar 2021 15:12:28 +0000 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=casper.20170209; h=Content-Transfer-Encoding:MIME-Version: Message-Id:Date:Subject:Cc:To:From:Sender:Reply-To:Content-Type:Content-ID: Content-Description:In-Reply-To:References; bh=xSbOx9BYWsEWTmTbZRYzJgmFAM6mA41kvRQ/re4xgMg=; b=BVB97C2XV6DacDTURDMAuvWXF7 R7QSZmIR+kjw1elE4l84T+BdCphvXLVMH0ae64rVOa6g7+kxPk/zcY/xbuQIO4kpKC+zzxcc5BJP6 /R4ItiZp408oQNP9/D5EiH3H7CB2RkelOJBQ9BzoulnV/5+pgU4Nz3u9BktESd+vu0JFTukB5PzEG UE9A1wa+pU5jEPZtYSDO36eAMUO+qwyLqJuiv5yX+3zeKczoDN3r2gl4wLeBHHCM2ihrXm6YX7s0P j9ZRiQat6Ubn73LHv7NysOe2TdQgYffqzt4sMUqNlppOwmCVutySJfXEZJMFNvqhKtSRs6OXSbjZo vFjhCZ3Q==; Received: from [2001:4bb8:180:9884:624:26dd:6387:40e9] (helo=localhost) by casper.infradead.org with esmtpsa (Exim 4.94 #2 (Red Hat Linux)) id 1lHQzy-002cM2-Uv; Wed, 03 Mar 2021 12:53:09 +0000 From: Christoph Hellwig To: Sagi Grimberg Cc: Keith Busch , James Smart , linux-nvme@lists.infradead.org Subject: reserved tag allocation fixups Date: Wed, 3 Mar 2021 13:53:01 +0100 Message-Id: <20210303125304.1200789-1-hch@lst.de> X-Mailer: git-send-email 2.29.2 MIME-Version: 1.0 X-SRS-Rewrite: SMTP reverse-path rewritten from by casper.infradead.org. See http://www.infradead.org/rpr.html 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 Hi all, this series is based on the report form Hannes, and first reduces the reserved tags on the admin queue from 2 to 1 and then uses a nowait allocation for the keep alive request to avoid a deadlock during unlikely error scenarios. _______________________________________________ Linux-nvme mailing list Linux-nvme@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-nvme