From patchwork Thu Jan 28 04:47:26 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Damien Le Moal X-Patchwork-Id: 12051747 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=-16.5 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,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 21DF7C433E0 for ; Thu, 28 Jan 2021 04:49:25 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id D3FE064DD9 for ; Thu, 28 Jan 2021 04:49:24 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229728AbhA1EtY (ORCPT ); Wed, 27 Jan 2021 23:49:24 -0500 Received: from esa5.hgst.iphmx.com ([216.71.153.144]:21969 "EHLO esa5.hgst.iphmx.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229545AbhA1EtW (ORCPT ); Wed, 27 Jan 2021 23:49:22 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=wdc.com; i=@wdc.com; q=dns/txt; s=dkim.wdc.com; t=1611809361; x=1643345361; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=nlVDSYPsDiNDIn4MgX4E8oTX+gmER/SxjozWNm4/+I0=; b=AC2wC8ob7S7spqukE39AM5m+6snPfo+ftl1PgZQB2+E5TZmxGaT8HB8D i2UC4P9CaaLFmahBiWRFN4/qVOj9Ueg5qKzpqXdqCDpoFOEElfoHNSd81 RYFjKS63rPkSjJTXXsCdby1ZhbhUEzKWMRtGxaPAYpa9qN0xJvRDG8Pcu Rm0LsY0LdH4XUdW1ihUqC5RGdhgn813ULLLawd7MZ7eT0mKuZUG57aOqF v+4nt6BmPl2+hooTJA7u4ObItaEkiCcSnNRXSBTh6+jZ16eBPZ/ZNAjIm mzR2Yiz4CoWBY86a/JSlBIUehkhEy8IUnWlER0QPoBBT67rJjxdReWeV7 w==; IronPort-SDR: dvMYoRePYBMgIp4/nNXX1K4pgNepYOHgMYaVVkjMl045+LxL+AEYc7nCpf8JMolBUrEfp2VIKY xHF1/hLY5obhwJW5XWqBZ/WM6mTFrLl7PmDBKpRw58p7tcYxORAFhd2sdp6dio0QdiKYE3F+dM sEMlWjoHO5ALBaGNbdjTsKoSnM5xsEaHSKv/Fyx6Dg9FpDOxUz1M6GiKbXNDJG0flMEhttIoRJ x8uJcyr/xNumQLyVBXtJ7bS9PHqBF+8HJdEkGkomeaSRMEoyS+6V78Y1nBQaUrdYnqAFsYL6VT uZ0= X-IronPort-AV: E=Sophos;i="5.79,381,1602518400"; d="scan'208";a="158509126" Received: from h199-255-45-15.hgst.com (HELO uls-op-cesaep02.wdc.com) ([199.255.45.15]) by ob1.hgst.iphmx.com with ESMTP; 28 Jan 2021 12:47:37 +0800 IronPort-SDR: jk7I/2Q10HaA7mQHUWqRZsgowiItqCMimrhCIyluGOzKQdhJkMvjzsTa1RTdrys0KiiNvD4Dvp GE25Soy67RnBe3TBmEs2WskukWZdtloTORChy9Bd2Lz9bldLslCgx3HMz4O68phbORjOzBtOQE WWYQeDAc3t1zVccs1t9AuL686gOVYyTOHjzFjC6TWSF3YlAxbj6uVGVKQx3tQ0rWUxkYyOdRrL OWtD/BBdvF5p0VPSYJzELEohX+PTlwEbDDf5rt8IOdBu/dnmJt/MqvAVxWvkf29jFECP3PjrRK sQkUDw2T3E5oaX8MhZXv5AVh Received: from uls-op-cesaip01.wdc.com ([10.248.3.36]) by uls-op-cesaep02.wdc.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 27 Jan 2021 20:29:56 -0800 IronPort-SDR: Rw4bUzOvN4mJwZLFxFUm6LpJsGwe5YcjBXIX2Ymv9mt+5XHcopn8O27sy142fveBFZy18GIqep dvyoGjJpSCtn0JKO6dGlnahV4dhyjT/iii6yhL5o/XGgczi5bC4+HJYI97zt156LnEvC9UlYVk OWD50plCdjYBxhJSEehpZDV18NEpG1mFbF301ZIQVHxOfwa450BEWZvJlo/Sadvlt4IBLUHmdk /zz5jCgU8+44Juwu2kXXwWCyftM6fkjACRZQfke/V/+xM0bxwwgoMgC2ZAsHUtKWQYOGvuSUoL usU= WDCIronportException: Internal Received: from washi.fujisawa.hgst.com ([10.149.53.254]) by uls-op-cesaip01.wdc.com with ESMTP; 27 Jan 2021 20:47:36 -0800 From: Damien Le Moal To: linux-block@vger.kernel.org, Jens Axboe Cc: linux-scsi@vger.kernel.org, "Martin K . Petersen" , linux-nvme@lists.infradead.org, Christoph Hellwig , Keith Busch , Chaitanya Kulkarni Subject: [PATCH v4 1/8] block: document zone_append_max_bytes attribute Date: Thu, 28 Jan 2021 13:47:26 +0900 Message-Id: <20210128044733.503606-2-damien.lemoal@wdc.com> X-Mailer: git-send-email 2.29.2 In-Reply-To: <20210128044733.503606-1-damien.lemoal@wdc.com> References: <20210128044733.503606-1-damien.lemoal@wdc.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-block@vger.kernel.org The description of the zone_append_max_bytes sysfs queue attribute is missing from Documentation/block/queue-sysfs.rst. Add it. Signed-off-by: Damien Le Moal Reviewed-by: Christoph Hellwig Reviewed-by: Chaitanya Kulkarni Reviewed-by: Martin K. Petersen Reviewed-by: Johannes Thumshirn --- Documentation/block/queue-sysfs.rst | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/Documentation/block/queue-sysfs.rst b/Documentation/block/queue-sysfs.rst index 2638d3446b79..edc6e6960b96 100644 --- a/Documentation/block/queue-sysfs.rst +++ b/Documentation/block/queue-sysfs.rst @@ -261,6 +261,12 @@ For block drivers that support REQ_OP_WRITE_ZEROES, the maximum number of bytes that can be zeroed at once. The value 0 means that REQ_OP_WRITE_ZEROES is not supported. +zone_append_max_bytes (RO) +-------------------------- +This is the maximum number of bytes that can be written to a sequential +zone of a zoned block device using a zone append write operation +(REQ_OP_ZONE_APPEND). This value is always 0 for regular block devices. + zoned (RO) ---------- This indicates if the device is a zoned block device and the zone model of the