From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754695AbdBGRaN (ORCPT ); Tue, 7 Feb 2017 12:30:13 -0500 Received: from mx1.redhat.com ([209.132.183.28]:47910 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754016AbdBGRaM (ORCPT ); Tue, 7 Feb 2017 12:30:12 -0500 Organization: Red Hat UK Ltd. Registered Address: Red Hat UK Ltd, Amberley Place, 107-111 Peascod Street, Windsor, Berkshire, SI4 1TE, United Kingdom. Registered in England and Wales under Company Registration No. 3798903 From: David Howells In-Reply-To: <20170207172258.GM2267@bombadil.infradead.org> References: <20170207172258.GM2267@bombadil.infradead.org> <20170206144902.GH2267@bombadil.infradead.org> <1486307804-27903-1-git-send-email-minchan@kernel.org> <27995.1486460404@warthog.procyon.org.uk> To: Matthew Wilcox Cc: dhowells@redhat.com, Minchan Kim , Andrew Morton , linux-kernel@vger.kernel.org, linux-arch@vger.kernel.org, sergey.senozhatsky@gmail.com, iamjoonsoo.kim@lge.com, ngupta@vflare.org, zhouxianrong@huawei.com, zhouxiyu@huawei.com, weidu.du@huawei.com, zhangshiming5@huawei.com, Mi.Sophia.Wang@huawei.com, won.ho.park@huawei.com Subject: Re: memfill MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-ID: <28293.1486488554.1@warthog.procyon.org.uk> Date: Tue, 07 Feb 2017 17:29:15 +0000 Message-ID: <28294.1486488555@warthog.procyon.org.uk> X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.31]); Tue, 07 Feb 2017 17:29:21 +0000 (UTC) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Matthew Wilcox wrote: > You've misunderstood the purpose of memfill. memfill allows the caller > to specify a pattern which is not a single byte in size, eg memfill(addr, > 0x12345678, 64) would result in 0x12345678 being reproduced 16 times. > memset(addr, 0x12345678, 64) would result in 0x78 being reproduced > 64 times. Ah. Should it take a unsigned int rather than an unsigned long? David