From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail138.messagelabs.com (mail138.messagelabs.com [216.82.249.35]) by kanga.kvack.org (Postfix) with SMTP id 4763A6B0092 for ; Fri, 15 May 2009 07:11:49 -0400 (EDT) Received: from eu_spt2 (mailout1.w1.samsung.com [210.118.77.11]) by mailout1.w1.samsung.com (iPlanet Messaging Server 5.2 Patch 2 (built Jul 14 2004)) with ESMTP id <0KJO00ETAN3NPL@mailout1.w1.samsung.com> for linux-mm@kvack.org; Fri, 15 May 2009 12:11:47 +0100 (BST) Received: from amdc030 ([106.116.37.122]) by spt2.w1.samsung.com (iPlanet Messaging Server 5.2 Patch 2 (built Jul 14 2004)) with ESMTPA id <0KJO00B7JN3L9T@spt2.w1.samsung.com> for linux-mm@kvack.org; Fri, 15 May 2009 12:11:47 +0100 (BST) Date: Fri, 15 May 2009 13:11:44 +0200 From: =?utf-8?B?TWljaGHFgiBOYXphcmV3aWN6?= Subject: Re: [PATCH] Physical Memory Management [0/1] In-reply-to: <1242385414.26820.55.camel@twins> Message-id: MIME-version: 1.0 Content-type: text/plain; charset=utf-8 Content-transfer-encoding: 8BIT References: <20090513151142.5d166b92.akpm@linux-foundation.org> <1242300002.6642.1091.camel@laptop> <1242302702.6642.1140.camel@laptop> <20090514100718.d8c20b64.akpm@linux-foundation.org> <1242321000.6642.1456.camel@laptop> <20090515101811.GC16682@one.firstfloor.org> <1242385414.26820.55.camel@twins> Sender: owner-linux-mm@kvack.org To: Peter Zijlstra Cc: Andi Kleen , Andrew Morton , linux-kernel@vger.kernel.org, m.szyprowski@samsung.com, kyungmin.park@samsung.com, linux-mm@kvack.org List-ID: > On Fri, 2009-05-15 at 12:47 +0200, MichaA? Nazarewicz wrote: >> I cannot create a huge page SysV shared memory segment >> with pages of specified size, can I? On Fri, 15 May 2009 13:03:34 +0200, Peter Zijlstra wrote: > Well, hugetlbfs is a fs, so you can simply create a file on there and > map that shared -- much saner interface than sysvshm if you ask me. It's not a question of being sane or not, it's a question of whether X server supports it and it doesn't. X can read data from Sys V shm to avoid needles copying (or sending via unix socket or whatever) pixmaps (or whatever) and so PMM lets it read from continuous blocks without knowing or carying about it. -- Best regards, _ _ .o. | Liege of Serenly Enlightened Majesty of o' \,=./ `o ..o | Computer Science, MichaA? "mina86" Nazarewicz (o o) ooo +---ooO--(_)--Ooo-- -- 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