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[140.211.169.12]) by mx.google.com with ESMTPS id q10si5478689plr.347.2019.03.05.13.16.44 for (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Tue, 05 Mar 2019 13:16:45 -0800 (PST) Received-SPF: pass (google.com: domain of akpm@linux-foundation.org designates 140.211.169.12 as permitted sender) client-ip=140.211.169.12; Authentication-Results: mx.google.com; spf=pass (google.com: domain of akpm@linux-foundation.org designates 140.211.169.12 as permitted sender) smtp.mailfrom=akpm@linux-foundation.org Received: from akpm3.svl.corp.google.com (unknown [104.133.8.65]) by mail.linuxfoundation.org (Postfix) with ESMTPSA id 5AB6CF89B; Tue, 5 Mar 2019 21:16:44 +0000 (UTC) Date: Tue, 5 Mar 2019 13:16:43 -0800 From: Andrew Morton To: Mike Kravetz Cc: Naoya Horiguchi , Oscar Salvador , David Rientjes , Jing Xiangfeng , "mhocko@kernel.org" , "hughd@google.com" , "linux-mm@kvack.org" , Andrea Arcangeli , "kirill.shutemov@linux.intel.com" , linux-kernel@vger.kernel.org, Alexandre Ghiti Subject: Re: [PATCH v4] mm/hugetlb: Fix unsigned overflow in __nr_hugepages_store_common() Message-Id: <20190305131643.94aa32165fecdb53a1109028@linux-foundation.org> In-Reply-To: <8f3aede3-c07e-ac15-1577-7667e5b70d2f@oracle.com> References: <388cbbf5-7086-1d04-4c49-049021504b9d@oracle.com> <8c167be7-06fa-a8c0-8ee7-0bfad41eaba2@oracle.com> <13400ee2-3d3b-e5d6-2d78-a770820417de@oracle.com> <5C74A2DA.1030304@huawei.com> <20190226143620.c6af15c7c897d3362b191e36@linux-foundation.org> <086c4a4b-a37d-f144-00c0-d9a4062cc5fe@oracle.com> <20190305000402.GA4698@hori.linux.bs1.fc.nec.co.jp> <8f3aede3-c07e-ac15-1577-7667e5b70d2f@oracle.com> X-Mailer: Sylpheed 3.6.0 (GTK+ 2.24.31; x86_64-pc-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit 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 Mon, 4 Mar 2019 20:15:40 -0800 Mike Kravetz wrote: > Andrew, this is on top of Alexandre Ghiti's "hugetlb: allow to free gigantic > pages regardless of the configuration" patch. Both patches modify > __nr_hugepages_store_common(). Alex's patch is going to change slightly > in this area. OK, thanks, I missed that. Are the changes significant?