Messages in this thread | | | Date | Thu, 17 May 2018 23:44:00 -0700 | From | Christoph Hellwig <> | Subject | Re: [RFC PATCH 00/09] Implement direct user I/O interfaces for RDMA |
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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.
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