From: Christoph Hellwig <hch@infradead.org>
To: Long Li <longli@microsoft.com>
Cc: Tom Talpey <tom@talpey.com>, Steve French <sfrench@samba.org>,
"linux-cifs@vger.kernel.org" <linux-cifs@vger.kernel.org>,
"samba-technical@lists.samba.org"
<samba-technical@lists.samba.org>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
"linux-rdma@vger.kernel.org" <linux-rdma@vger.kernel.org>
Subject: Re: [RFC PATCH 00/09] Implement direct user I/O interfaces for RDMA
Date: Thu, 17 May 2018 23:44:00 -0700 [thread overview]
Message-ID: <20180518064400.GB9425@infradead.org> (raw)
In-Reply-To: <MWHPR2101MB0729BFF8F0A397805087C3A4CE900@MWHPR2101MB0729.namprd21.prod.outlook.com>
On Fri, May 18, 2018 at 06:03:09AM +0000, Long Li wrote:
> I also want to point out that, I choose to implement .read_iter and .write_iter from file_operations to implement direct I/O (CIFS is already doing this for O_DIRECT, so following this code path will avoid a big mess up). The ideal choice is to implement .direct_IO from address_space_operations that I think eventually we want to move to.
No, the direct_IO address space operation is the mess. We're moving
away from it.
next prev parent reply other threads:[~2018-05-18 6:44 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-05-18 0:22 [RFC PATCH 00/09] Implement direct user I/O interfaces for RDMA Long Li
2018-05-17 23:10 ` Tom Talpey
2018-05-18 6:03 ` Long Li
2018-05-18 6:44 ` Christoph Hellwig [this message]
2018-05-19 0:58 ` Tom Talpey
2018-05-19 0:58 ` Tom Talpey
2018-05-18 6:42 ` Christoph Hellwig
2018-05-18 0:22 ` [RFC PATCH 01/09] Introduce offset for the 1st page in data transfer structures Long Li
2018-05-18 6:37 ` Steve French
2018-05-18 0:22 ` [RFC PATCH 02/09] Change wdata alloc to support direct pages Long Li
2018-05-19 1:05 ` Tom Talpey
2018-05-18 0:22 ` [RFC PATCH 03/09] Change rdata " Long Li
2018-05-18 0:22 ` [RFC PATCH 04/09] Change function to support offset when reading pages Long Li
2018-05-18 0:22 ` [RFC PATCH 05/09] Change RDMA send to regonize page offset in the 1st page Long Li
2018-05-19 1:09 ` Tom Talpey
2018-05-19 5:54 ` Long Li
2018-05-18 0:22 ` [RFC PATCH 06/09] Change RDMA recv to support " Long Li
2018-05-18 0:22 ` [RFC PATCH 07/09] Support page offset in memory regsitrations Long Li
2018-05-18 0:22 ` [RFC PATCH 08/09] Implement direct file I/O interfaces Long Li
2018-05-18 0:22 ` [RFC PATCH 09/09] Introduce cache=rdma moutning option Long Li
2018-05-18 7:26 ` Christoph Hellwig
2018-05-18 19:00 ` Long Li
2018-05-18 20:44 ` Steve French
2018-05-18 20:58 ` Long Li
2018-05-19 1:20 ` Tom Talpey
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