From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:60094) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1YZu2l-0001YI-JV for qemu-devel@nongnu.org; Mon, 23 Mar 2015 00:32:52 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1YZu2k-0006mP-Gl for qemu-devel@nongnu.org; Mon, 23 Mar 2015 00:32:51 -0400 Received: from ozlabs.org ([2401:3900:2:1::2]:53369) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1YZu2k-0006mJ-5U for qemu-devel@nongnu.org; Mon, 23 Mar 2015 00:32:50 -0400 Date: Mon, 23 Mar 2015 15:33:33 +1100 From: David Gibson Message-ID: <20150323043333.GP25043@voom.fritz.box> References: <1424883128-9841-1-git-send-email-dgilbert@redhat.com> <1424883128-9841-45-git-send-email-dgilbert@redhat.com> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="cmVHo2jXx4bdYlgS" Content-Disposition: inline In-Reply-To: <1424883128-9841-45-git-send-email-dgilbert@redhat.com> Subject: Re: [Qemu-devel] [PATCH v5 44/45] Disable mlock around incoming postcopy List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: "Dr. David Alan Gilbert (git)" Cc: aarcange@redhat.com, yamahata@private.email.ne.jp, quintela@redhat.com, qemu-devel@nongnu.org, amit.shah@redhat.com, pbonzini@redhat.com, yanghy@cn.fujitsu.com --cmVHo2jXx4bdYlgS Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Wed, Feb 25, 2015 at 04:52:07PM +0000, Dr. David Alan Gilbert (git) wrot= e: > From: "Dr. David Alan Gilbert" >=20 > Userfault doesn't work with mlock; mlock is designed to nail down pages > so they don't move, userfault is designed to tell you when they're not > there. >=20 > munlock the pages we userfault protect before postcopy. > mlock everything again at the end if mlock is enabled. >=20 > Signed-off-by: Dr. David Alan Gilbert Reviewed-by: David Gibson --=20 David Gibson | I'll have my music baroque, and my code david AT gibson.dropbear.id.au | minimalist, thank you. NOT _the_ _other_ | _way_ _around_! http://www.ozlabs.org/~dgibson --cmVHo2jXx4bdYlgS Content-Type: application/pgp-signature -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iQIcBAEBAgAGBQJVD5edAAoJEGw4ysog2bOSaLUP/2AdokRhEpgB6Bfe+DVraoCN iIWdEsZkNVKiwI+QEMVVE1PA3JTuOVsa8mnqhvgSTBgoXIGl1Xz5q0ovR9+WiUYp jXzg1p6/YVYIzKTdCrIA1HboizwvhZLvL71wD4dVZeVdWUdFLfMPdRQNm6BSy/Bk wCaftMqMxrZEiD2IHLF9tJUPkcPiDVlZBkPrFJA+QUxHrf0NQ7uZI5XJnzqh+XF7 biLYefe3bMFnUWPJ00kzoHTs6BkdCk4K+iJtYythFTWMkram6tJvmFh/CqtJ1wGI W1n2P+Ha+AnIfnF/+zHoFkJx/LJ5tYntAAlhm9EeyevZ6Z0eCA343z4/3xbOjphf EoWnoomzvoiKYY46qL0MQn4xzx3cPz7X2DW0hdcHeOFTe4HQ0Ooipw4e9p1cgNXx VQm+IpdhaiUkGJMFUBut8jgX8LbyDsUtgd7UpGJEupuWswCwgv8YpbWL+LETgSta vG6yEEg1rp3gGJsQcelBZYc61OO2HZ4ky0fACziaFelwN7XNG6dyVRQgN403VkhK ldvpd/QoLA9b8zwSBDUs5SAPBWABTJgRC/cb1Z9R7pZ6IO0wRNloI1IPh3JNRpqZ l/iLtdYiM5sAWTXgIwbe/K9bSzp0gIY/aIM4jfvRPRqoAO/n6MY+ALP5Ny9hqnDj YaYVXqiJc/Qa9p/TMR8Y =sGTV -----END PGP SIGNATURE----- --cmVHo2jXx4bdYlgS--