From patchwork Tue Jan 19 13:17:23 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: 12029981 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=-16.6 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,USER_AGENT_GIT autolearn=unavailable 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 2540BC433DB for ; Tue, 19 Jan 2021 14:46:12 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id E05C521D1B for ; Tue, 19 Jan 2021 14:46:11 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2403789AbhASOlI (ORCPT ); Tue, 19 Jan 2021 09:41:08 -0500 Received: from esa4.hgst.iphmx.com ([216.71.154.42]:37869 "EHLO esa4.hgst.iphmx.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2404588AbhASNUn (ORCPT ); Tue, 19 Jan 2021 08:20:43 -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=1611062442; x=1642598442; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=gf41tJSgK06B/Ga4VjMMXYqoISVLe/c4wgOY899USOM=; b=NX1EGoYyLBeXrAcDiIVX7i3K7Si+K8GMkAgeF8LqNDyohXU0tKRWXyTO ZDmHd205vDaWEOTh6L/IWPCI9Fv2Zu91mUnSBSx554T0M36Wu7JvLg2Vw /mLvK8XDifRfbX2CAW7zhBs3Rhnu3vIhEjY1Bc8nZlC5Wbm7mwxU8RtVD +pLkl3ovtsOECwNazDJIXfYVzktEmFf5MxA7ttPq1KJlUN3OhZRJ0XEGr DKGGbBflY4HdCbuzTuifYqQiyOeGbYwlD+Gg9nxKTkZGLASr+8KKOebUS nH8FSadQUxgWsogmsuEYCwH69Nex5FY3sugk6lc3glZ0MFa/pcH7WkCKB A==; IronPort-SDR: arQ4yX0E3KpgIdFh1a4i2zFzOLql/PuLWtRN9uLizeNbT36yW7L1olgt7nRvAaYKZhvSv/Cgpo GWIgvhWTrMIF0JSED8I6eEOvH+/ldH/3vcwLe1Xni2hSV/KtECK8oGuOxxrhFf6wI3WYcxbfUJ gvV0eQxwDhk7d4N7VNz7oCQFZdRQFaGWw3a9ro/tqcC+VYv/OHFkJ+E+L1C/CQ1hyRFKs0h3pg LELXtn0pDpcyOGl+zrHsN93kVq+LP+5vzkolPwSKjJtrNgSHWY4gH5Gh9hjuSeQUWN7pN8g8QP B14= X-IronPort-AV: E=Sophos;i="5.79,358,1602518400"; d="scan'208";a="157798233" 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; 19 Jan 2021 21:17:28 +0800 IronPort-SDR: 1qfK/Ceqgvoot+EhIrtYKddJ81latfgJ+qz1DjRQKkElXaw+o1pXXiGVdY8lvVX0SID8Fqt8Nc OVJ7zENACy2+Pmm0g6RhMJnSzRZWS7V0QauxMXIxqGJQVFUDCtMSpLPODFGkY8/sMlmA3HGCbR rlKVpt4GztB7KFVvCTUfZu/8moD97Zg4Lfww/M3ZFnfSHkucKfpO/iB2eiBjeUKgVFRbnOifnI jkv87CK6ap/qgbwxfleONdv89Xhekvz+TCxG+j75/Qo30mMDsyi0FOWRzh24Z4mBgp2Mej1UmY SkanHJA3WIIH2PodJ5vOq72Z Received: from uls-op-cesaip02.wdc.com ([10.248.3.37]) by uls-op-cesaep02.wdc.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 19 Jan 2021 05:00:04 -0800 IronPort-SDR: bJewGvUGD2sd8RHBZafXHMg0+wubmtkfNYOfD6a8NwTV//wLa0dZzK5OVZJWLVgBZh8rC79oxL fQ2sAKgqjO/QrBrBp04+pudSEiVEAaZLu406kcpbTwcvmcIT+psRAv8h2VHNb5I9J3P3rPRpqD et/gv50/Xx9x7NTQEPo5ZKAWPmDGqAP55v+sFRdo6skgAaT3o70mEVJCWS1QIKWj1CFe/ZVNJd ccayjxo/ErKBQYgIebKl5wXt5IaYTkq8FsceHiYYT3QQqZCZ10D57Po2bWVsHsIecRrmlNhCY8 15w= WDCIronportException: Internal Received: from washi.fujisawa.hgst.com ([10.149.53.254]) by uls-op-cesaip02.wdc.com with ESMTP; 19 Jan 2021 05:17:28 -0800 From: Damien Le Moal To: linux-block@vger.kernel.org, Jens Axboe Cc: Chaitanya Kulkarni , linux-scsi@vger.kernel.org, "Martin K . Petersen" , linux-nvme@lists.infradead.org, Christoph Hellwig , Keith Busch Subject: [PATCH v2 2/2] block: document zone_append_max_bytes attribute Date: Tue, 19 Jan 2021 22:17:23 +0900 Message-Id: <20210119131723.1637853-3-damien.lemoal@wdc.com> X-Mailer: git-send-email 2.29.2 In-Reply-To: <20210119131723.1637853-1-damien.lemoal@wdc.com> References: <20210119131723.1637853-1-damien.lemoal@wdc.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-scsi@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 --- 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 c8bf8bc3c03a..4dc7f0d499a8 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