From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-ig0-f172.google.com (mail-ig0-f172.google.com [209.85.213.172]) by kanga.kvack.org (Postfix) with ESMTP id C7BC16B02A0 for ; Fri, 2 Oct 2015 06:10:04 -0400 (EDT) Received: by igcpb10 with SMTP id pb10so15031130igc.1 for ; Fri, 02 Oct 2015 03:10:04 -0700 (PDT) Received: from resqmta-ch2-11v.sys.comcast.net (resqmta-ch2-11v.sys.comcast.net. [2001:558:fe21:29:69:252:207:43]) by mx.google.com with ESMTPS id b9si5487644igl.46.2015.10.02.03.10.03 for (version=TLSv1.2 cipher=RC4-SHA bits=128/128); Fri, 02 Oct 2015 03:10:03 -0700 (PDT) Date: Fri, 2 Oct 2015 05:10:02 -0500 (CDT) From: Christoph Lameter Subject: Re: [MM PATCH V4.1 5/6] slub: support for bulk free with SLUB freelists In-Reply-To: <20151002114118.75aae2f9@redhat.com> Message-ID: References: <560ABE86.9050508@gmail.com> <20150930114255.13505.2618.stgit@canyon> <20151001151015.c59a1360c7720a257f655578@linux-foundation.org> <20151002114118.75aae2f9@redhat.com> Content-Type: text/plain; charset=US-ASCII Sender: owner-linux-mm@kvack.org List-ID: To: Jesper Dangaard Brouer Cc: Andrew Morton , linux-mm@kvack.org, Alexander Duyck , Pekka Enberg , netdev@vger.kernel.org, Joonsoo Kim , David Rientjes On Fri, 2 Oct 2015, Jesper Dangaard Brouer wrote: > Thus, I need introducing new code like this patch and at the same time > have to reduce the number of instruction-cache misses/usage. In this > case we solve the problem by kmem_cache_free_bulk() not getting called > too often. Thus, +17 bytes will hopefully not matter too much... but on > the other hand we sort-of know that calling kmem_cache_free_bulk() will > cause icache misses. Can we just drop the WARN/BUG here? Nothing untoward happens if size == 0 right? -- 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