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[45.79.88.28]) by mx.google.com with ESMTPS id f7si5530261pgq.522.2019.04.19.11.48.38 for (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Fri, 19 Apr 2019 11:48:38 -0700 (PDT) Received-SPF: pass (google.com: domain of corbet@lwn.net designates 45.79.88.28 as permitted sender) client-ip=45.79.88.28; Authentication-Results: mx.google.com; spf=pass (google.com: domain of corbet@lwn.net designates 45.79.88.28 as permitted sender) smtp.mailfrom=corbet@lwn.net Received: from lwn.net (localhost [127.0.0.1]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ms.lwn.net (Postfix) with ESMTPSA id 53A34537; Fri, 19 Apr 2019 18:48:37 +0000 (UTC) Date: Fri, 19 Apr 2019 12:48:36 -0600 From: Jonathan Corbet To: Yang Shi Cc: mhocko@suse.com, kirill.shutemov@linux.intel.com, ziy@nvidia.com, rppt@linux.vnet.ibm.com, akpm@linux-foundation.org, linux-doc@vger.kernel.org, linux-mm@kvack.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH] doc: mm: migration doesn't use FOLL_SPLIT anymore Message-ID: <20190419124836.0800991f@lwn.net> In-Reply-To: <1555618624-23957-1-git-send-email-yang.shi@linux.alibaba.com> References: <1555618624-23957-1-git-send-email-yang.shi@linux.alibaba.com> Organization: LWN.net MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 8bit X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: On Fri, 19 Apr 2019 04:17:04 +0800 Yang Shi wrote: > When demonstrating FOLL_SPLIT in transhuge document, migration is used > as an example. But, since commit 94723aafb9e7 ("mm: unclutter THP > migration"), the way of THP migration is totally changed. FOLL_SPLIT is > not used by migration anymore due to the change. > > Remove the obsolete example to avoid confusion. > > Cc: Michal Hocko > Cc: Kirill A. Shutemov > Cc: Zi Yan > Cc: Mike Rapoport > Signed-off-by: Yang Shi Applied, thanks. jon