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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 6078EC433FE for ; Mon, 21 Nov 2022 22:18:57 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231828AbiKUWSz (ORCPT ); Mon, 21 Nov 2022 17:18:55 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:60144 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231932AbiKUWSI (ORCPT ); Mon, 21 Nov 2022 17:18:08 -0500 Received: from dfw.source.kernel.org (dfw.source.kernel.org [139.178.84.217]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 2985026AF7 for ; Mon, 21 Nov 2022 14:18:06 -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 dfw.source.kernel.org (Postfix) with ESMTPS id 5FBAA614BB for ; Mon, 21 Nov 2022 22:18:06 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id BA44FC433D6; Mon, 21 Nov 2022 22:18:05 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linux-foundation.org; s=korg; t=1669069085; bh=YTlxeD7tkt5FH8p9GfS08lcoPKWL74VeWA7vX3FQjKA=; h=Date:To:From:Subject:From; b=VFovRU7Q8cHzEeHaVKvs7Ni+OLaT9YFaJvQLhdRe27QoUKCuWcx0mSyutsi3T/l1m yA/Rj+4Vrw+I9zuOfR4vRqQ5gglI/mefFXWDW4tNKU32do1At81aFjdkpN3WR6CmSq TiSa2SXyMClm/1z0+NrDz3wPrS/aHwAjPwrdD7Ns= Date: Mon, 21 Nov 2022 14:18:05 -0800 To: mm-commits@vger.kernel.org, clm@meta.com, axboe@kernel.dk, shr@devkernel.io, akpm@linux-foundation.org From: Andrew Morton Subject: + mm-document-sys-class-bdi-bdi-max_ratio_fine-knob.patch added to mm-unstable branch Message-Id: <20221121221805.BA44FC433D6@smtp.kernel.org> Precedence: bulk Reply-To: linux-kernel@vger.kernel.org List-ID: X-Mailing-List: mm-commits@vger.kernel.org The patch titled Subject: mm: document /sys/class/bdi//max_ratio_fine knob has been added to the -mm mm-unstable branch. Its filename is mm-document-sys-class-bdi-bdi-max_ratio_fine-knob.patch This patch will shortly appear at https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/mm-document-sys-class-bdi-bdi-max_ratio_fine-knob.patch This patch will later appear in the mm-unstable branch at git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm Before you just go and hit "reply", please: a) Consider who else should be cc'ed b) Prefer to cc a suitable mailing list as well c) Ideally: find the original patch on the mailing list and do a reply-to-all to that, adding suitable additional cc's *** Remember to use Documentation/process/submit-checklist.rst when testing your code *** The -mm tree is included into linux-next via the mm-everything branch at git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm and is updated there every 2-3 working days ------------------------------------------------------ From: Stefan Roesch Subject: mm: document /sys/class/bdi//max_ratio_fine knob Date: Fri, 18 Nov 2022 16:52:12 -0800 This documents the new /sys/class/bdi//max_ratio_fine knob. Link: https://lkml.kernel.org/r/20221119005215.3052436-18-shr@devkernel.io Signed-off-by: Stefan Roesch Cc: Chris Mason Cc: Jens Axboe Signed-off-by: Andrew Morton --- Documentation/ABI/testing/sysfs-class-bdi | 13 +++++++++++++ 1 file changed, 13 insertions(+) --- a/Documentation/ABI/testing/sysfs-class-bdi~mm-document-sys-class-bdi-bdi-max_ratio_fine-knob +++ a/Documentation/ABI/testing/sysfs-class-bdi @@ -57,6 +57,19 @@ Description: (read-write) +What: /sys/class/bdi//max_ratio_fine +Date: November 2022 +Contact: Stefan Roesch +Description: + Allows limiting a particular device to use not more than the + given value of the write-back cache. The value is given as part + of 1 million. This is useful in situations where we want to avoid + one device taking all or most of the write-back cache. For example + in case of an NFS mount that is prone to get stuck, or a FUSE mount + which cannot be trusted to play fair. + + (read-write) + What: /sys/class/bdi//min_bytes Date: October 2022 Contact: Stefan Roesch _ Patches currently in -mm which might be from shr@devkernel.io are mm-add-bdi_set_strict_limit-function.patch mm-add-knob-sys-class-bdi-bdi-strict_limit.patch mm-document-sys-class-bdi-bdi-strict_limit-knob.patch mm-use-part-per-1000000-for-bdi-ratios.patch mm-add-bdi_get_max_bytes-function.patch mm-split-off-__bdi_set_max_ratio-function.patch mm-add-bdi_set_max_bytes-function.patch mm-add-knob-sys-class-bdi-bdi-max_bytes.patch mm-document-sys-class-bdi-bdi-max_bytes-knob.patch mm-add-bdi_get_min_bytes-function.patch mm-split-off-__bdi_set_min_ratio-function.patch mm-add-bdi_set_min_bytes-function.patch mm-add-sys-class-bdi-bdi-min_bytes-knob.patch mm-document-sys-class-bdi-bdi-min_bytes-knob.patch mm-add-bdi_set_max_ratio_no_scale-function.patch mm-add-sys-class-bdi-bdi-max_ratio_fine-knob.patch mm-document-sys-class-bdi-bdi-max_ratio_fine-knob.patch mm-add-bdi_set_min_ratio_no_scale-function.patch mm-add-sys-class-bdi-bdi-min_ratio_fine-knob.patch mm-document-sys-class-bdi-bdi-min_ratio_fine-knob.patch