From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 4CF58C433F5 for ; Thu, 23 Dec 2021 09:01:43 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1347341AbhLWJBn (ORCPT ); Thu, 23 Dec 2021 04:01:43 -0500 Received: from verein.lst.de ([213.95.11.211]:53199 "EHLO verein.lst.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1347339AbhLWJBk (ORCPT ); Thu, 23 Dec 2021 04:01:40 -0500 Received: by verein.lst.de (Postfix, from userid 2407) id 89FF468AA6; Thu, 23 Dec 2021 10:01:37 +0100 (CET) Date: Thu, 23 Dec 2021 10:01:37 +0100 From: Christoph Hellwig To: Baoquan He Cc: Christoph Hellwig , martin.petersen@oracle.com, linux-scsi@vger.kernel.org Subject: Re: [PATCH v2] sr: don't use GFP_DMA Message-ID: <20211223090137.GB7555@lst.de> References: <20211222090842.920724-1-hch@lst.de> <20211222093707.GA23698@MiWiFi-R3L-srv> <20211222094216.GA28018@lst.de> <20211222104046.GB23698@MiWiFi-R3L-srv> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20211222104046.GB23698@MiWiFi-R3L-srv> User-Agent: Mutt/1.5.17 (2007-11-01) Precedence: bulk List-ID: X-Mailing-List: linux-scsi@vger.kernel.org On Wed, Dec 22, 2021 at 06:40:46PM +0800, Baoquan He wrote: > Any thought or plan for those callsites in other places? Possibly we can > skip those s390 related drivers since s390 only has DMA zone, no DMA32, > it should be OK. Yes, this needs a bit of an audit. A lot of them might be best handled by the subsysem maintainers, e.g. for crypto media and sound. > And could you please also add me to CC when send out these patches? We > have this problem in our RHEL8 which is based on kernel4.18, if finally > removing dma-kmalloc(), we need back port these driver fixes too. If > not paying attention, these patches may scatter in different > sub-components and unnoticable. I already sent them out yesterday. Just look for everything with GFP_DMA in the subject line in the current scsi tree for 5.17.