From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail143.messagelabs.com (mail143.messagelabs.com [216.82.254.35]) by kanga.kvack.org (Postfix) with SMTP id DCD496B0062 for ; Tue, 15 Dec 2009 22:08:04 -0500 (EST) Received: from m6.gw.fujitsu.co.jp ([10.0.50.76]) by fgwmail6.fujitsu.co.jp (Fujitsu Gateway) with ESMTP id nBG381mR025863 for (envelope-from kamezawa.hiroyu@jp.fujitsu.com); Wed, 16 Dec 2009 12:08:02 +0900 Received: from smail (m6 [127.0.0.1]) by outgoing.m6.gw.fujitsu.co.jp (Postfix) with ESMTP id A7F8E45DE79 for ; Wed, 16 Dec 2009 12:07:54 +0900 (JST) Received: from s6.gw.fujitsu.co.jp (s6.gw.fujitsu.co.jp [10.0.50.96]) by m6.gw.fujitsu.co.jp (Postfix) with ESMTP id 8CF2245DE57 for ; Wed, 16 Dec 2009 12:07:39 +0900 (JST) Received: from s6.gw.fujitsu.co.jp (localhost.localdomain [127.0.0.1]) by s6.gw.fujitsu.co.jp (Postfix) with ESMTP id 01CB91DB805E for ; Wed, 16 Dec 2009 12:07:35 +0900 (JST) Received: from m105.s.css.fujitsu.com (m105.s.css.fujitsu.com [10.249.87.105]) by s6.gw.fujitsu.co.jp (Postfix) with ESMTP id D32151DB8055 for ; Wed, 16 Dec 2009 12:07:27 +0900 (JST) Date: Wed, 16 Dec 2009 12:04:23 +0900 From: KAMEZAWA Hiroyuki Subject: [mm][RFC][PATCH 4/11] mm accessor for kvm Message-Id: <20091216120423.13636fe3.kamezawa.hiroyu@jp.fujitsu.com> In-Reply-To: <20091216120011.3eecfe79.kamezawa.hiroyu@jp.fujitsu.com> References: <20091216120011.3eecfe79.kamezawa.hiroyu@jp.fujitsu.com> Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: owner-linux-mm@kvack.org To: KAMEZAWA Hiroyuki Cc: "linux-kernel@vger.kernel.org" , "linux-mm@kvack.org" , cl@linux-foundation.org, "akpm@linux-foundation.org" , "mingo@elte.hu" , andi@firstfloor.org, minchan.kim@gmail.com List-ID: Use mm_accessor in /kvm layer. Signed-off-by: KAMEZAWA Hiroyuki --- security/tomoyo/common.c | 4 ++-- virt/kvm/kvm_main.c | 6 +++--- 2 files changed, 5 insertions(+), 5 deletions(-) Index: mmotm-mm-accessor/virt/kvm/kvm_main.c =================================================================== --- mmotm-mm-accessor.orig/virt/kvm/kvm_main.c +++ mmotm-mm-accessor/virt/kvm/kvm_main.c @@ -843,18 +843,18 @@ pfn_t gfn_to_pfn(struct kvm *kvm, gfn_t if (unlikely(npages != 1)) { struct vm_area_struct *vma; - down_read(¤t->mm->mmap_sem); + mm_read_lock(current->mm); vma = find_vma(current->mm, addr); if (vma == NULL || addr < vma->vm_start || !(vma->vm_flags & VM_PFNMAP)) { - up_read(¤t->mm->mmap_sem); + mm_read_unlock(current->mm); get_page(bad_page); return page_to_pfn(bad_page); } pfn = ((addr - vma->vm_start) >> PAGE_SHIFT) + vma->vm_pgoff; - up_read(¤t->mm->mmap_sem); + mm_read_unlock(current->mm); BUG_ON(!kvm_is_mmio_pfn(pfn)); } else pfn = page_to_pfn(page[0]); -- 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