From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:60304) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1cYYQU-0003On-IX for qemu-devel@nongnu.org; Tue, 31 Jan 2017 08:24:51 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1cYYQR-0002MU-Df for qemu-devel@nongnu.org; Tue, 31 Jan 2017 08:24:50 -0500 Received: from mx1.redhat.com ([209.132.183.28]:41132) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1cYYQR-0002ML-7O for qemu-devel@nongnu.org; Tue, 31 Jan 2017 08:24:47 -0500 Received: from int-mx13.intmail.prod.int.phx2.redhat.com (int-mx13.intmail.prod.int.phx2.redhat.com [10.5.11.26]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id 6F4023D945 for ; Tue, 31 Jan 2017 13:24:47 +0000 (UTC) From: Juan Quintela In-Reply-To: <20170106182823.1960-15-dgilbert@redhat.com> (David Alan Gilbert's message of "Fri, 6 Jan 2017 18:28:22 +0000") References: <20170106182823.1960-1-dgilbert@redhat.com> <20170106182823.1960-15-dgilbert@redhat.com> Reply-To: quintela@redhat.com Date: Tue, 31 Jan 2017 14:24:42 +0100 Message-ID: <87d1f3s6p1.fsf@emacs.mitica> MIME-Version: 1.0 Content-Type: text/plain Subject: Re: [Qemu-devel] [PATCH 14/15] postcopy: Check for userfault+hugepage feature List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: "Dr. David Alan Gilbert (git)" Cc: qemu-devel@nongnu.org, amit.shah@redhat.com, aarcange@redhat.com "Dr. David Alan Gilbert (git)" wrote: > From: "Dr. David Alan Gilbert" > > We need extra Linux kernel support (~4.9) to support userfaults > on hugetlbfs; check for them. > > Signed-off-by: Dr. David Alan Gilbert Reviewed-by: Juan Quintela > migration/postcopy-ram.c | 11 +++++++++++ > 1 file changed, 11 insertions(+) > > diff --git a/migration/postcopy-ram.c b/migration/postcopy-ram.c > index 6b30b43..d12dd7f 100644 > --- a/migration/postcopy-ram.c > +++ b/migration/postcopy-ram.c > @@ -81,6 +81,17 @@ static bool ufd_version_check(int ufd) > return false; > } > > + if (getpagesize() != ram_pagesize_summary()) { I am pretty sure that I don't like ram_pagesize_summary() name. I have already forgot what I mean O:-)