From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-pb0-f52.google.com (mail-pb0-f52.google.com [209.85.160.52]) by kanga.kvack.org (Postfix) with ESMTP id 559666B005A for ; Wed, 2 Oct 2013 10:59:40 -0400 (EDT) Received: by mail-pb0-f52.google.com with SMTP id wz12so982055pbc.39 for ; Wed, 02 Oct 2013 07:59:40 -0700 (PDT) Date: Wed, 2 Oct 2013 17:59:31 +0300 From: Gleb Natapov 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: owner-linux-mm@kvack.org List-ID: To: Jan Kara Cc: LKML , linux-mm@kvack.org, Paolo Bonzini , kvm@vger.kernel.org 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, 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