From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S935045AbXFFUDo (ORCPT ); Wed, 6 Jun 2007 16:03:44 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1758864AbXFFUDf (ORCPT ); Wed, 6 Jun 2007 16:03:35 -0400 Received: from pat.uio.no ([129.240.10.15]:57910 "EHLO pat.uio.no" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756017AbXFFUDe (ORCPT ); Wed, 6 Jun 2007 16:03:34 -0400 Subject: Re: kmap_atomic in 2.6.20.x From: Trond Myklebust To: "Raz Ben-Jehuda(caro)" Cc: Linux Kernel In-Reply-To: <5d96567b0706061003r462c324i733ad3698ac3d90c@mail.gmail.com> References: <5d96567b0706061003r462c324i733ad3698ac3d90c@mail.gmail.com> Content-Type: text/plain Date: Wed, 06 Jun 2007 16:03:31 -0400 Message-Id: <1181160211.6408.42.camel@heimdal.trondhjem.org> Mime-Version: 1.0 X-Mailer: Evolution 2.10.1 Content-Transfer-Encoding: 7bit X-UiO-Resend: resent X-UiO-Spam-info: not spam, SpamAssassin (score=-0.0, required=12.0, autolearn=disabled, AWL=-0.037) X-UiO-Scanned: A2F0E551D6CE1C4E279EB6108EBB3F69A26EDB3A X-UiO-SPAM-Test: remote_host: 129.240.10.9 spam_score: 0 maxlevel 200 minaction 2 bait 0 mail/h: 67 total 2220971 max/h 8345 blacklist 0 greylist 0 ratelimit 0 Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Wed, 2007-06-06 at 20:03 +0300, Raz Ben-Jehuda(caro) wrote: > If my understanding ( from "see : understand the linux > kernel" page 310 ) , a different kernel component holds this window. A > fact which is quite strange in the case of KM_SKB_SUNRPC_DATA. I have > nothing that uses it. KM_SKB_SUNRPC_DATA is verboten unless you are running in the appropriate bh-safe socket environment. Otherwise, see Jens' comment. Trond