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Thu, 11 Mar 2021 04:30:10 -0800 Received: from pps.filterd (userp3020.oracle.com [127.0.0.1]) by userp3020.oracle.com (8.16.0.42/8.16.0.42) with SMTP id 12BCF9kY127749 for ; Thu, 11 Mar 2021 12:30:10 GMT Received: from userp2040.oracle.com (userp2040.oracle.com [156.151.31.90]) by userp3020.oracle.com with ESMTP id 374kguvg9w-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK) for ; Thu, 11 Mar 2021 12:30:10 +0000 Received: from pps.filterd (userp2040.oracle.com [127.0.0.1]) by userp2040.oracle.com (8.16.0.42/8.16.0.42) with SMTP id 12BCEQdW042787 for ; Thu, 11 Mar 2021 12:30:09 GMT Received: from verein.lst.de (verein.lst.de [213.95.11.211]) by userp2040.oracle.com with ESMTP id 37711gj9mx-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Thu, 11 Mar 2021 12:30:09 +0000 Received: by verein.lst.de (Postfix, from userid 2407) id 98CCA68B05; Thu, 11 Mar 2021 13:30:03 +0100 (CET) Date: Thu, 11 Mar 2021 13:30:02 +0100 From: Christoph Hellwig To: Shiyang Ruan Message-ID: <20210311123002.GA18838@lst.de> References: <20210226002030.653855-8-ruansy.fnst@fujitsu.com> <20210304054142.1147895-1-ruansy.fnst@fujitsu.com> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <20210304054142.1147895-1-ruansy.fnst@fujitsu.com> User-Agent: Mutt/1.5.17 (2007-11-01) X-PDR: PASS X-Source-IP: 213.95.11.211 X-ServerName: verein.lst.de X-Proofpoint-SPF-Result: None X-Proofpoint-Virus-Version: vendor=nai engine=6200 definitions=9919 signatures=668683 X-Proofpoint-Spam-Details: rule=tap_notspam policy=tap score=0 priorityscore=0 lowpriorityscore=0 mlxlogscore=470 bulkscore=0 phishscore=0 spamscore=0 suspectscore=0 adultscore=0 clxscore=205 impostorscore=0 mlxscore=0 malwarescore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2009150000 definitions=main-2103110067 X-Spam: Clean Cc: jack@suse.cz, darrick.wong@oracle.com, linux-nvdimm@lists.01.org, david@fromorbit.com, linux-kernel@vger.kernel.org, linux-xfs@vger.kernel.org, ocfs2-devel@oss.oracle.com, viro@zeniv.linux.org.uk, linux-fsdevel@vger.kernel.org, dan.j.williams@intel.com, linux-btrfs@vger.kernel.org Subject: Re: [Ocfs2-devel] [RESEND PATCH v2.1 07/10] iomap: Introduce iomap_apply2() for operations on two files X-BeenThere: ocfs2-devel@oss.oracle.com X-Mailman-Version: 2.1.9 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: ocfs2-devel-bounces@oss.oracle.com Errors-To: ocfs2-devel-bounces@oss.oracle.com X-Proofpoint-Virus-Version: vendor=nai engine=6200 definitions=9919 signatures=668683 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 spamscore=0 suspectscore=0 adultscore=0 phishscore=0 malwarescore=0 mlxscore=0 bulkscore=0 mlxlogscore=999 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2009150000 definitions=main-2103110067 X-Proofpoint-Virus-Version: vendor=nai engine=6200 definitions=9919 signatures=668683 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 spamscore=0 suspectscore=0 clxscore=1034 phishscore=0 adultscore=0 mlxlogscore=999 priorityscore=1501 lowpriorityscore=0 bulkscore=0 mlxscore=0 impostorscore=0 malwarescore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2009150000 definitions=main-2103110067 On Thu, Mar 04, 2021 at 01:41:42PM +0800, Shiyang Ruan wrote: > Some operations, such as comparing a range of data in two files under > fsdax mode, requires nested iomap_open()/iomap_end() on two file. Thus, > we introduce iomap_apply2() to accept arguments from two files and > iomap_actor2_t for actions on two files. I still wonder if adding the iter based iomap API that willy proposed would be a better fit here. In that case we might not even need a special API for the double iteration. _______________________________________________ Ocfs2-devel mailing list Ocfs2-devel@oss.oracle.com https://oss.oracle.com/mailman/listinfo/ocfs2-devel