linux-kernel - Re: [PATCH v13 03/12] splice: Do splice read from a buffered file without using ITER

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Message-ID: <1830953.1676286937@warthog.procyon.org.uk>
Date:   Mon, 13 Feb 2023 11:15:37 +0000
From:   David Howells <dhowells@...hat.com>
To:     Christoph Hellwig <hch@...radead.org>
Cc:     dhowells@...hat.com, Jens Axboe <axboe@...nel.dk>,
        Al Viro <viro@...iv.linux.org.uk>,
        Matthew Wilcox <willy@...radead.org>, Jan Kara <jack@...e.cz>,
        Jeff Layton <jlayton@...nel.org>,
        David Hildenbrand <david@...hat.com>,
        Jason Gunthorpe <jgg@...dia.com>,
        Logan Gunthorpe <logang@...tatee.com>,
        Hillf Danton <hdanton@...a.com>, linux-fsdevel@...r.kernel.org,
        linux-block@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-mm@...ck.org, Christoph Hellwig <hch@....de>,
        John Hubbard <jhubbard@...dia.com>
Subject: Re: [PATCH v13 03/12] splice: Do splice read from a buffered file without using ITER_PIPE

Christoph Hellwig <hch@...radead.org> wrote:

> > > Also why doesn't this use init_sync_kiocb?
> > 
> > I'm not sure I want ki_flags.
> 
> Why?

I'm not sure I want ki_flags setting from f_iocb_flags I should've said.  I'm
not sure how the IOCB_* flags that I import from there will affect the
operation of the synchronous read splice.  IOCB_NOWAIT, for example, or, for
that matter, IOCB_APPEND.

David