linux-kernel - Re: [PATCH v17 02/14] splice: Make do_splice

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Date:   Tue, 14 Mar 2023 10:31:32 -0700
From:   Christoph Hellwig <hch@...radead.org>
To:     David Howells <dhowells@...hat.com>
Cc:     Jens Axboe <axboe@...nel.dk>, Al Viro <viro@...iv.linux.org.uk>,
        Christoph Hellwig <hch@...radead.org>,
        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>,
        Linus Torvalds <torvalds@...ux-foundation.org>,
        linux-fsdevel@...r.kernel.org, linux-block@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-mm@...ck.org,
        Miklos Szeredi <miklos@...redi.hu>,
        Christoph Hellwig <hch@....de>,
        John Hubbard <jhubbard@...dia.com>,
        linux-unionfs@...r.kernel.org
Subject: Re: [PATCH v17 02/14] splice: Make do_splice_to() generic and export
 it

> -static long do_splice_to(struct file *in, loff_t *ppos,
> -			 struct pipe_inode_info *pipe, size_t len,
> -			 unsigned int flags)
> +long vfs_splice_read(struct file *in, loff_t *ppos,

The (pre-existing) long here is odd given that ->splice_read
returns a ssize_t.  This might be a good time to fix that up.

Otherwise looks good:

Reviewed-by: Christoph Hellwig <hch@....de>