From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-io0-f197.google.com (mail-io0-f197.google.com [209.85.223.197]) by kanga.kvack.org (Postfix) with ESMTP id F201E6B0033 for ; Fri, 24 Nov 2017 12:31:49 -0500 (EST) Received: by mail-io0-f197.google.com with SMTP id s37so28786036ioe.1 for ; Fri, 24 Nov 2017 09:31:49 -0800 (PST) Received: from resqmta-ch2-12v.sys.comcast.net (resqmta-ch2-12v.sys.comcast.net. [2001:558:fe21:29:69:252:207:44]) by mx.google.com with ESMTPS id 20si15088642ion.130.2017.11.24.09.31.48 for (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Fri, 24 Nov 2017 09:31:48 -0800 (PST) Date: Fri, 24 Nov 2017 11:31:47 -0600 (CST) From: Christopher Lameter Subject: Re: [PATCH 21/23] slub: make struct kmem_cache_order_objects::x unsigned int In-Reply-To: <20171123221628.8313-21-adobriyan@gmail.com> Message-ID: References: <20171123221628.8313-1-adobriyan@gmail.com> <20171123221628.8313-21-adobriyan@gmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Sender: owner-linux-mm@kvack.org List-ID: To: Alexey Dobriyan Cc: akpm@linux-foundation.org, linux-mm@kvack.org, penberg@kernel.org, rientjes@google.com, iamjoonsoo.kim@lge.com On Fri, 24 Nov 2017, Alexey Dobriyan wrote: > !!! Patch assumes that "PAGE_SIZE << order" doesn't overflow. !!! Check for that condition and do not allow creation of such caches? -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: email@kvack.org