From mboxrd@z Thu Jan 1 00:00:00 1970 Date: Wed, 8 Oct 2008 01:23:22 +0200 From: Andi Kleen Subject: Re: [PATCH, v3] shmat: introduce flag SHM_MAP_NOT_FIXED Message-ID: <20081007232322.GV20740@one.firstfloor.org> References: <1223396117-8118-1-git-send-email-kirill@shutemov.name> <2f11576a0810070931k79eb72dfr838a96650563b93a@mail.gmail.com> <20081007211038.GQ20740@one.firstfloor.org> <2f11576a0810071438x59e51b74rc8c1919c14739395@mail.gmail.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <2f11576a0810071438x59e51b74rc8c1919c14739395@mail.gmail.com> Sender: owner-linux-mm@kvack.org Return-Path: To: KOSAKI Motohiro Cc: Andi Kleen , "Kirill A. Shutemov" , linux-kernel@vger.kernel.org, linux-mm@kvack.org, Ingo Molnar , Arjan van de Ven , Hugh Dickins , Alan Cox , Ulrich Drepper , Andrew Morton List-ID: On Wed, Oct 08, 2008 at 06:38:07AM +0900, KOSAKI Motohiro wrote: > >> Sorry, no. > >> This description still doesn't explain why this interface is needed. > >> > >> The one of the points is this interface is used by another person or not. > >> You should explain how large this interface benefit has. > >> > >> Andi kleen explained this interface _can_ be used another one. > >> but nobody explain who use it actually. > > > > Anyone who doesn't want to use fixed addresses. > > yup. > however, almost application doesn't use new flag because almost > application want to works on cross platform. (or merely lazy) > then, this explain isn't enough, imo. You're arguing that there shouldn't be any Linux extensions to system calls ever because it would break compatibility? You're at least 15 years too late with that. Linux extensions are there all over. -Andi -- ak@linux.intel.com -- 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