Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754240Ab3JBO7o (ORCPT ); Wed, 2 Oct 2013 10:59:44 -0400 Received: from mx1.redhat.com ([209.132.183.28]:63078 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753610Ab3JBO7l (ORCPT ); Wed, 2 Oct 2013 10:59:41 -0400 Date: Wed, 2 Oct 2013 17:59:31 +0300 From: Gleb Natapov To: Jan Kara Cc: LKML , linux-mm@kvack.org, Paolo Bonzini , kvm@vger.kernel.org Subject: Re: [PATCH 17/26] kvm: Use get_user_pages_unlocked() in async_pf_execute() Message-ID: <20131002145931.GL17294@redhat.com> References: <1380724087-13927-1-git-send-email-jack@suse.cz> <1380724087-13927-18-git-send-email-jack@suse.cz> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1380724087-13927-18-git-send-email-jack@suse.cz> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1104 Lines: 36 Looks straightforward. On Wed, Oct 02, 2013 at 04:27:58PM +0200, Jan Kara wrote: > CC: Gleb Natapov > CC: Paolo Bonzini > CC: kvm@vger.kernel.org > Signed-off-by: Jan Kara > --- > virt/kvm/async_pf.c | 4 +--- > 1 file changed, 1 insertion(+), 3 deletions(-) > > diff --git a/virt/kvm/async_pf.c b/virt/kvm/async_pf.c > index 8a39dda7a325..8d4b39a4bc12 100644 > --- a/virt/kvm/async_pf.c > +++ b/virt/kvm/async_pf.c > @@ -67,9 +67,7 @@ static void async_pf_execute(struct work_struct *work) > might_sleep(); > > use_mm(mm); > - down_read(&mm->mmap_sem); > - get_user_pages(current, mm, addr, 1, 1, 0, &page, NULL); > - up_read(&mm->mmap_sem); > + get_user_pages_unlocked(current, mm, addr, 1, 1, 0, &page); > unuse_mm(mm); > > spin_lock(&vcpu->async_pf.lock); > -- > 1.8.1.4 -- Gleb. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/