Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S934961AbcJZRWn (ORCPT ); Wed, 26 Oct 2016 13:22:43 -0400 Received: from mga02.intel.com ([134.134.136.20]:62163 "EHLO mga02.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S934864AbcJZRVz (ORCPT ); Wed, 26 Oct 2016 13:21:55 -0400 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.31,551,1473145200"; d="asc'?scan'208";a="23940636" Message-ID: <1477502512.2431.1.camel@intel.com> Subject: Re: [Intel-wired-lan] [net-next PATCH 26/27] igb: Update code to better handle incrementing page count From: Jeff Kirsher To: Alexander Duyck , netdev@vger.kernel.org, intel-wired-lan@lists.osuosl.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org Cc: davem@davemloft.net, brouer@redhat.com Date: Wed, 26 Oct 2016 10:21:52 -0700 In-Reply-To: <20161025153906.4815.61652.stgit@ahduyck-blue-test.jf.intel.com> References: <20161025153220.4815.61239.stgit@ahduyck-blue-test.jf.intel.com> <20161025153906.4815.61652.stgit@ahduyck-blue-test.jf.intel.com> Content-Type: multipart/signed; micalg="pgp-sha512"; protocol="application/pgp-signature"; boundary="=-0f++dvhAy/23Xp0vvR9u" X-Mailer: Evolution 3.20.5 (3.20.5-1.fc24) Mime-Version: 1.0 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1739 Lines: 44 --=-0f++dvhAy/23Xp0vvR9u Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable On Tue, 2016-10-25 at 11:39 -0400, Alexander Duyck wrote: > This patch updates the driver code so that we do bulk updates of the page > reference count instead of just incrementing it by one reference at a > time. > The advantage to doing this is that we cut down on atomic operations and > this in turn should give us a slight improvement in cycles per packet.=C2= =A0 > In > addition if we eventually move this over to using build_skb the gains > will > be more noticeable. >=20 > Signed-off-by: Alexander Duyck Acked-by: Jeff Kirsher --=-0f++dvhAy/23Xp0vvR9u Content-Type: application/pgp-signature; name="signature.asc" Content-Description: This is a digitally signed message part Content-Transfer-Encoding: 7bit -----BEGIN PGP SIGNATURE----- Version: GnuPG v2 iQIcBAABCgAGBQJYEOYwAAoJEOVv75VaS+3O+90P/RzEWysXswEA6WCLQghQzin4 AyEx54yCGcDsov1babvWDe1tg/IO3SCwEL/VHT0ku3CznqYlHfQZntTZrxD+DSPt Ao0cD7AxdS925Q+qJcyzrhY0bzkVkL+V14VrpmWAIBMTUDuRliPPor37J0VPpvYC CGFfe7lOr50pGcABz9RyXdGxqXGma2hZ2a2b953cBaLlkv5ovG0aBgC0hCaZFpmj Apiatjc8prktsiP0qWwrjqKaqRcmWa9PJ2Qtt2WH1Gseg9ZGqIYkZSxT6dcF2qfs 4RK7fxxClZVOdnIYASkOkztpW8sAVztgrAflJ4QU6eH8GOBv3zBOlWfYcqPzSaHd 1otUncjOcAaA/wo/nrytXjIwJ0kKLjVlTlb8nslhFuXqFHAskUJ8hLp03lHtMkHz pRxM5A4CtXaFSmrxjOc2LQUkGpDTgki6iLt3adJNa15+Jju1yI45zTrxwMouMskY KkvCC2ueLD1z7fBLL8g00e/MjeNGH9oq8ONxQQQN6SHBVStrTt7jwskJCXHYAJ7t 99mivUy6aNu0cdPWYzzf/SNxof4pMPq+qiIWAQgjeDMEwZJlLx/97ThBvkG/8f38 gdHFG5gcdcM5b/riTJjcPCYm9ty71fbs2pVlHx/TkX7ZOH5sFyLf0IMijw8cxdon ilygxstkUcu9eASLDNUj =u6jM -----END PGP SIGNATURE----- --=-0f++dvhAy/23Xp0vvR9u--