From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S964902AbYEBPRV (ORCPT ); Fri, 2 May 2008 11:17:21 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S934894AbYEBPNT (ORCPT ); Fri, 2 May 2008 11:13:19 -0400 Received: from host36-195-149-62.serverdedicati.aruba.it ([62.149.195.36]:48701 "EHLO mx.cpushare.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S934658AbYEBPNJ (ORCPT ); Fri, 2 May 2008 11:13:09 -0400 Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Subject: [PATCH 10 of 11] export zap_page_range for XPMEM X-Mercurial-Node: 4f462fb3dff614cd7d971219c3feaef0b43359c1 Message-Id: <4f462fb3dff614cd7d97.1209740713@duo.random> In-Reply-To: Date: Fri, 02 May 2008 17:05:13 +0200 From: Andrea Arcangeli To: Andrew Morton Cc: Christoph Lameter , Jack Steiner , Robin Holt , Nick Piggin , Peter Zijlstra , kvm-devel@lists.sourceforge.net, Kanoj Sarcar , Roland Dreier , Steve Wise , linux-kernel@vger.kernel.org, Avi Kivity , linux-mm@kvack.org, general@lists.openfabrics.org, Hugh Dickins , akpm@linux-foundation.org, Rusty Russell , Anthony Liguori , Chris Wright , Marcelo Tosatti , Eric Dumazet , "Paul E. McKenney" Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org # HG changeset patch # User Andrea Arcangeli # Date 1209740229 -7200 # Node ID 4f462fb3dff614cd7d971219c3feaef0b43359c1 # Parent 721c3787cd42043734331e54a42eb20c51766f71 export zap_page_range for XPMEM XPMEM would have used sys_madvise() except that madvise_dontneed() returns an -EINVAL if VM_PFNMAP is set, which is always true for the pages XPMEM imports from other partitions and is also true for uncached pages allocated locally via the mspec allocator. XPMEM needs zap_page_range() functionality for these types of pages as well as 'normal' pages. Signed-off-by: Dean Nelson Signed-off-by: Andrea Arcangeli diff --git a/mm/memory.c b/mm/memory.c --- a/mm/memory.c +++ b/mm/memory.c @@ -954,6 +954,7 @@ unsigned long zap_page_range(struct vm_a return unmap_vmas(vma, address, end, &nr_accounted, details); } +EXPORT_SYMBOL_GPL(zap_page_range); /* * Do a quick page-table lookup for a single page. From mboxrd@z Thu Jan 1 00:00:00 1970 From: Andrea Arcangeli Subject: [ofa-general] [PATCH 10 of 11] export zap_page_range for XPMEM Date: Fri, 02 May 2008 17:05:13 +0200 Message-ID: <4f462fb3dff614cd7d97.1209740713@duo.random> References: Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Cc: Nick Piggin , Chris Wright , Rusty Russell , Peter Zijlstra , Marcelo Tosatti , kvm-devel@lists.sourceforge.net, Kanoj Sarcar , Roland Dreier , Jack Steiner , linux-kernel@vger.kernel.org, Avi Kivity , Anthony Liguori , "Paul E. McKenney" , linux-mm@kvack.org, Robin Holt , general@lists.openfabrics.org, Hugh Dickins , akpm@linux-foundation.org, Eric Dumazet , Christoph Lameter To: Andrew Morton Return-path: In-Reply-To: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: general-bounces@lists.openfabrics.org Errors-To: general-bounces@lists.openfabrics.org List-Id: kvm.vger.kernel.org # HG changeset patch # User Andrea Arcangeli # Date 1209740229 -7200 # Node ID 4f462fb3dff614cd7d971219c3feaef0b43359c1 # Parent 721c3787cd42043734331e54a42eb20c51766f71 export zap_page_range for XPMEM XPMEM would have used sys_madvise() except that madvise_dontneed() returns an -EINVAL if VM_PFNMAP is set, which is always true for the pages XPMEM imports from other partitions and is also true for uncached pages allocated locally via the mspec allocator. XPMEM needs zap_page_range() functionality for these types of pages as well as 'normal' pages. Signed-off-by: Dean Nelson Signed-off-by: Andrea Arcangeli diff --git a/mm/memory.c b/mm/memory.c --- a/mm/memory.c +++ b/mm/memory.c @@ -954,6 +954,7 @@ unsigned long zap_page_range(struct vm_a return unmap_vmas(vma, address, end, &nr_accounted, details); } +EXPORT_SYMBOL_GPL(zap_page_range); /* * Do a quick page-table lookup for a single page. From mboxrd@z Thu Jan 1 00:00:00 1970 Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Subject: [PATCH 10 of 11] export zap_page_range for XPMEM Message-Id: <4f462fb3dff614cd7d97.1209740713@duo.random> In-Reply-To: Date: Fri, 02 May 2008 17:05:13 +0200 From: Andrea Arcangeli Sender: owner-linux-mm@kvack.org Return-Path: To: Andrew Morton Cc: Christoph Lameter , Jack Steiner , Robin Holt , Nick Piggin , Peter Zijlstra , kvm-devel@lists.sourceforge.net, Kanoj Sarcar , Roland Dreier , Steve Wise , linux-kernel@vger.kernel.org, Avi Kivity , linux-mm@kvack.org, general@lists.openfabrics.org, Hugh Dickins , Rusty Russell , Anthony Liguori , Chris Wright , Marcelo Tosatti , Eric Dumazet , "Paul E. McKenney" List-ID: # HG changeset patch # User Andrea Arcangeli # Date 1209740229 -7200 # Node ID 4f462fb3dff614cd7d971219c3feaef0b43359c1 # Parent 721c3787cd42043734331e54a42eb20c51766f71 export zap_page_range for XPMEM XPMEM would have used sys_madvise() except that madvise_dontneed() returns an -EINVAL if VM_PFNMAP is set, which is always true for the pages XPMEM imports from other partitions and is also true for uncached pages allocated locally via the mspec allocator. XPMEM needs zap_page_range() functionality for these types of pages as well as 'normal' pages. Signed-off-by: Dean Nelson Signed-off-by: Andrea Arcangeli diff --git a/mm/memory.c b/mm/memory.c --- a/mm/memory.c +++ b/mm/memory.c @@ -954,6 +954,7 @@ unsigned long zap_page_range(struct vm_a return unmap_vmas(vma, address, end, &nr_accounted, details); } +EXPORT_SYMBOL_GPL(zap_page_range); /* * Do a quick page-table lookup for a single page. -- 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