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 kanga.kvack.org (kanga.kvack.org [205.233.56.17]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id E79EFC43458 for ; Thu, 9 Jul 2026 22:23:01 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id 9379F6B0005; Thu, 9 Jul 2026 18:23:00 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 8E1B66B0088; Thu, 9 Jul 2026 18:23:00 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 7D2A06B008A; Thu, 9 Jul 2026 18:23:00 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from relay.hostedemail.com (smtprelay0011.hostedemail.com [216.40.44.11]) by kanga.kvack.org (Postfix) with ESMTP id 4F2FA6B0005 for ; Thu, 9 Jul 2026 18:23:00 -0400 (EDT) Received: from smtpin07.hostedemail.com (lb01a-stub [10.200.18.249]) by unirelay04.hostedemail.com (Postfix) with ESMTP id CBD411A02DD for ; Thu, 9 Jul 2026 22:22:59 +0000 (UTC) X-FDA: 84970664478.07.B753294 Received: from mail-qt1-f172.google.com (mail-qt1-f172.google.com [209.85.160.172]) by imf05.hostedemail.com (Postfix) with ESMTP id 25772100005 for ; Thu, 9 Jul 2026 22:22:57 +0000 (UTC) Authentication-Results: imf05.hostedemail.com; dkim=pass header.d=gourry.net header.s=google header.b=PK+54S25; dmarc=none; spf=pass (imf05.hostedemail.com: domain of gourry@gourry.net designates 209.85.160.172 as permitted sender) smtp.mailfrom=gourry@gourry.net ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=hostedemail.com; s=arc-20220608; t=1783635778; h=from:from:sender:reply-to:subject:subject:date:date: message-id:message-id:to:to:cc:cc:mime-version:mime-version: content-type:content-type:content-transfer-encoding: in-reply-to:in-reply-to:references:references:dkim-signature; bh=b50SGMSOIyssQj3plHocLLhkQW1pcBLVRqoMkWAD4k0=; b=eFKQNjJx5heh3NUrZXbQ5OzFo+vxl838M3wodsW4fqmunjmSQZT5Nlpmrj7j2JyYPBjpIG gm6KUHzF+x/yfwogdMQo9ooA7jaP0y8k76zuXDB3K7IFkbosrsIlGEjsIMQDaPvK3IBZWq c/BJ2Tio6XalcRENH+vPYddsoytCHrE= ARC-Authentication-Results: i=1; imf05.hostedemail.com; dkim=pass header.d=gourry.net header.s=google header.b=PK+54S25; dmarc=none; spf=pass (imf05.hostedemail.com: domain of gourry@gourry.net designates 209.85.160.172 as permitted sender) smtp.mailfrom=gourry@gourry.net ARC-Seal: i=1; a=rsa-sha256; d=hostedemail.com; s=arc-20220608; cv=none; t=1783635778; b=ng6BrrQ+iqvIvqMvyfGszFZmfKaNN46pqVUx6R+QneaEzZtQCwuLWPq9EKQdaA2s9Q9IO0 Ivu14lXQ5eI6ym5NWe/jfWpScrBnw4Zmb0nDkIyUCXLNSW37rg7QW14nbNANht6mtVlCkp jg91/CnZuKCOxxFyt21VrD5dDrtk35Y= Received: by mail-qt1-f172.google.com with SMTP id d75a77b69052e-51c2149571dso2171771cf.3 for ; Thu, 09 Jul 2026 15:22:57 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gourry.net; s=google; t=1783635777; x=1784240577; darn=kvack.org; h=in-reply-to:content-disposition:content-type:mime-version :references:message-id:subject:cc:to:from:date:from:to:cc:subject :date:message-id:reply-to:content-type; bh=b50SGMSOIyssQj3plHocLLhkQW1pcBLVRqoMkWAD4k0=; b=PK+54S25paHQxpc2tC1exMpm8FLpBBZIl5GE1EHj0kf7eD78fHbuTMh4B5etfOsqOu vbCCgxYWB4jTD/kWwIbyS6M1IH9dfuvFF38gcURMVMizgU4PfQBQ9jpbVOkZv327T3IX lW487wtjLVujjbaV6C0fE/K648kAQnGuKHH8h5vWjsDWUDrKbxf8HjW5IvDXJMDJ/D50 ALtqVukLXQzbgSfq+MK/FT+ofE/nGbJp5KoOIHs/9gs8YR37YeE2TwPhvrGYiJDb82Za mIpVP9ZzBBmiMab2RWQHPWr8ON1TrjvqBS0B5mPdEOemRFwtjuIhY0GNlD35zbFKDKxN lorg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20251104; t=1783635777; x=1784240577; h=in-reply-to:content-disposition:content-type:mime-version :references:message-id:subject:cc:to:from:date:x-gm-gg :x-gm-message-state:from:to:cc:subject:date:message-id:reply-to :content-type; bh=b50SGMSOIyssQj3plHocLLhkQW1pcBLVRqoMkWAD4k0=; b=Xxjs05k8e3VezhFi+7RUaoipYdm3AsiDCLH5rHeujHFrQEEfIc0+r4b6ouTFQxW79W xkJEimxLBFCoTO+b5iYAwwjSWhixYjB0onrCxgM0phZCAErGyidwZDoOYoH7nPu+JXOz sOktQruixARPHg2tc4gzUStKaWO2KuZ8LlWfKCjY/JVVOYqLexhIruBZ4Mcm2C1zipOO 7JQPLeerpoonwOJJcn2cvVFQemak2/RnkQzwZ+DqhHEGAOJUiluTlccdO0Cxf4aKX6BH WQ9KWo9L+3Nr5GXaMnuTc8K8sX8f41JtdoY8oHE+m41KEZTVdrpACyqxuuaVYQaNejFK OJ6w== X-Gm-Message-State: AOJu0YzQ7kHj/Ahid374tiJHV8/SUsBPNSbzCJB1urFmulbDQ4zPlA5W y8qVTPYi0eU94geq7nwBwg204FAIgzCZbNYKkRv/qT5xZfaBpmvAECy6VEatCia2HUo= X-Gm-Gg: AfdE7cmWvyaBRRinOwrCAfEnXRxoW1LuvBj0cUGDVXnJK1fyHNfKwjeJfgSG9kD7qVI h4rVh0c3KT9VaAc1wR5ODK6fLNn6ETnZpB46I/P1X1vL5d7NudX4jxI0HkYqs93KWYu98WUNckh X1tLgHSners8clC8EljUBKPR1htjr30iu1bqXCuy0EaMOo+M4YoP0zIc5iE/9+T3//iKclX66HO 5dJerUnvSg8i3tBKG5zZRbL6C/9mV3RGeY0hp61iKi/OEB7HCWvg6xk1zPyXfHlK4p51Bv2H8nH kcHnOCqP6mOxEOJXYEiWu/kJvz7jWI7Cr9vK/dstIZ6/tPXe2ngxF9mui+Rr8e37tFyuyzhtfeL ZQz51ERc1uJGlIlspjyQrQ2+Gl8bydnWS2K/XIm1wHSeJiy2ZYsfOlwA6PNXmR2FdSzozqR5OWw D9iOC/dKJrKyWHKbwzI+64cr8Jb9TqXzuuWDki5v8GYdYfjFKi2oPf35XniZKHEYZjqsaX X-Received: by 2002:ac8:5a02:0:b0:51a:8c97:fb91 with SMTP id d75a77b69052e-51c8b4bac92mr100050501cf.58.1783635777304; Thu, 09 Jul 2026 15:22:57 -0700 (PDT) Received: from gourry-fedora-PF4VCD3F (pool-173-79-60-52.washdc.fios.verizon.net. [173.79.60.52]) by smtp.gmail.com with ESMTPSA id d75a77b69052e-51caace31a4sm4283401cf.12.2026.07.09.15.22.55 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 09 Jul 2026 15:22:56 -0700 (PDT) Date: Thu, 9 Jul 2026 18:22:51 -0400 From: Gregory Price To: Dave Jiang Cc: linux-mm@kvack.org, nvdimm@lists.linux.dev, linux-kernel@vger.kernel.org, linux-cxl@vger.kernel.org, driver-core@lists.linux.dev, linux-kselftest@vger.kernel.org, kernel-team@meta.com, david@kernel.org, osalvador@suse.de, gregkh@linuxfoundation.org, rafael@kernel.org, dakr@kernel.org, djbw@kernel.org, vishal.l.verma@intel.com, alison.schofield@intel.com, akpm@linux-foundation.org, ljs@kernel.org, liam@infradead.org, vbabka@kernel.org, rppt@kernel.org, surenb@google.com, mhocko@suse.com, shuah@kernel.org, iweiny@kernel.org, Smita.KoralahalliChannabasappa@amd.com, apopple@nvidia.com, Hannes Reinecke Subject: Re: [PATCH v6 09/10] dax/kmem: add sysfs interface for atomic whole-device hotplug Message-ID: References: <20260630211842.2252800-1-gourry@gourry.net> <20260630211842.2252800-10-gourry@gourry.net> <6fd50351-93e0-4d65-960f-53dee655a786@intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <6fd50351-93e0-4d65-960f-53dee655a786@intel.com> X-Stat-Signature: nr1gedryptau9uengogde3qj6ah97dd3 X-Rspamd-Queue-Id: 25772100005 X-Rspamd-Server: rspam01 X-Rspam-User: X-HE-Tag: 1783635777-331588 X-HE-Meta: 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 QXc/+asP hDyQxCh8LERoBlx/F3qbhuUrBMLCgo1anaa7eztG8Q7tevBA/Nn7qSdUsJIHT/KRt6vAuRrZQnbaOerylN9PJOBPOj2UwZvGsokyYdM0sfUJ6ZfxcZk5oDM4+Oo3Fg7KJFwSmmPkHl/vcstKokbNijX8Uk+1pCFeKuLHfP251FnmlChdMuSCpgDHWThEtQDJE2IBy2yUSe2LJ1/DKmAcstBwGL3lgRel0k+CVwjmwQCuEksWKGN3gkdweoNaufge3bDNUwCYsjcy2rQuE7nMCgwOMjbep5QrWvnNopqis9VZMjv80byuAhTADL4Nw5SxGODsap7rwlF01gfhkzBeYLYXU7XaLpr3MIwZoRzToDOacwqKOIyCGPNF52S1vsN09qgNSRoWB+LtdRqEWOY6Q0cl4Yg== Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: On Thu, Jul 09, 2026 at 03:14:26PM -0700, Dave Jiang wrote: > > diff --git a/Documentation/ABI/testing/sysfs-bus-dax b/Documentation/ABI/testing/sysfs-bus-dax > > index b34266bfae49..2dcad1e9dad0 100644 > > --- a/Documentation/ABI/testing/sysfs-bus-dax > > +++ b/Documentation/ABI/testing/sysfs-bus-dax > > @@ -151,3 +151,29 @@ Description: > > memmap_on_memory parameter for memory_hotplug. This is > > typically set on the kernel command line - > > memory_hotplug.memmap_on_memory set to 'true' or 'force'." > > + > > +What: /sys/bus/dax/devices/daxX.Y/state > > +Date: June, 2026 > > +KernelVersion: v6.21 > > Kernel version a bit old :) > > DJ > It has been a hot second since i started this n_n;;;; ~Gregory