From mboxrd@z Thu Jan 1 00:00:00 1970 Date: Wed, 13 Feb 2008 11:02:15 -0800 (PST) From: Christoph Lameter Subject: Re: [ofa-general] Re: Demand paging for memory regions In-Reply-To: Message-ID: References: <20080208155641.2258ad2c.akpm@linux-foundation.org> <20080209012446.GB7051@v2.random> <20080209015659.GC7051@v2.random> <20080209075556.63062452@bree.surriel.com> <47B2174E.5000708@opengridcomputing.com> MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-linux-mm@kvack.org Return-Path: To: Christoph Raisch Cc: Roland Dreier , Andrew Morton , Andrea Arcangeli , avi@qumranet.com, a.p.zijlstra@chello.nl, daniel.blueman@quadrics.com, general@lists.openfabrics.org, general-bounces@lists.openfabrics.org, Robin Holt , izike@qumranet.com, kvm-devel@lists.sourceforge.net, linux-kernel@vger.kernel.org, linux-mm@kvack.org, Rik van Riel , steiner@sgi.com List-ID: On Wed, 13 Feb 2008, Christoph Raisch wrote: > For ehca we currently can't modify a large MR when it has been allocated. > EHCA Hardware expects the pages to be there (MRs must not have "holes"). > This is also true for the global MR covering all kernel space. > Therefore we still need the memory to be "pinned" if ib_umem_get() is > called. It cannot be freed and then reallocated? What happens when a process exists? -- 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