From patchwork Thu Dec 9 00:38:31 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Eric Biggers X-Patchwork-Id: 12665593 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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id EAC50C433EF for ; Thu, 9 Dec 2021 00:40:13 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S241534AbhLIAnl (ORCPT ); Wed, 8 Dec 2021 19:43:41 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:41344 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S241498AbhLIAnf (ORCPT ); Wed, 8 Dec 2021 19:43:35 -0500 Received: from ams.source.kernel.org (ams.source.kernel.org [IPv6:2604:1380:4601:e00::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 34F79C061746; Wed, 8 Dec 2021 16:40:03 -0800 (PST) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ams.source.kernel.org (Postfix) with ESMTPS id EB95BB82333; Thu, 9 Dec 2021 00:40:01 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 92052C00446; Thu, 9 Dec 2021 00:40:00 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1639010400; bh=b3K9Nj6GMD0TSZap+1QDuzGQ5JETQw0RNVbhy2D9m/c=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=qvthDnOufOhVNsnsM1t0Jj/bU6ufK6qWJ2ycAgEsXnJd8awMRpRLjN26Z/xbGhMoe QZBbVeDnuwvLrYdT2CgekZ6kcKvBYlkFb0h2EVMyF5TZIT85LbPiA4q9N1FvDWWuSX YkKUrkJzIawhvOxmMQl+gkXVW0ICRXgCyV1aNUS+kSGBdAWXAkgl/uKPwLNLQZXTdS EJ4mTf+9yKrmAjmv3obvap0+Qz6Gopr0YnVKcIbYmMBVQIjNUPoCn/Nmsm37LJkqVT nucZS5HhaKZcmM7QXhyv+BTE5VA9yRf61geUYDhTbf8Hp5NT9xJk+oT36uYmFhDsE8 4puhMg4vXZ98Q== From: Eric Biggers To: linux-block@vger.kernel.org, Jens Axboe Cc: linux-doc@vger.kernel.org, Greg Kroah-Hartman , linux-kernel@vger.kernel.org, Bart Van Assche Subject: [PATCH v3 6/8] docs: sysfs-block: document virt_boundary_mask Date: Wed, 8 Dec 2021 16:38:31 -0800 Message-Id: <20211209003833.6396-7-ebiggers@kernel.org> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20211209003833.6396-1-ebiggers@kernel.org> References: <20211209003833.6396-1-ebiggers@kernel.org> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-block@vger.kernel.org From: Eric Biggers /sys/block//queue/virt_boundary_mask is completely undocumented. Document it. Reviewed-by: Bart Van Assche Signed-off-by: Eric Biggers --- Documentation/ABI/stable/sysfs-block | 12 ++++++++++++ 1 file changed, 12 insertions(+) diff --git a/Documentation/ABI/stable/sysfs-block b/Documentation/ABI/stable/sysfs-block index 288626e8cb532..8dd3e84a8aade 100644 --- a/Documentation/ABI/stable/sysfs-block +++ b/Documentation/ABI/stable/sysfs-block @@ -544,6 +544,18 @@ Description: CONFIG_BLK_DEV_THROTTLING_LOW is enabled. +What: /sys/block//queue/virt_boundary_mask +Date: April 2021 +Contact: linux-block@vger.kernel.org +Description: + [RO] This file shows the I/O segment memory alignment mask for + the block device. I/O requests to this device will be split + between segments wherever either the memory address of the end + of the previous segment or the memory address of the beginning + of the current segment is not aligned to virt_boundary_mask + 1 + bytes. + + What: /sys/block//queue/wbt_lat_usec Date: November 2016 Contact: linux-block@vger.kernel.org