linux-kernel - Re: [PATCH 8/9] iomap: Convert iomap_write

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Message-ID: <20200825010605.GJ17456@casper.infradead.org>
Date:   Tue, 25 Aug 2020 02:06:05 +0100
From:   Matthew Wilcox <willy@...radead.org>
To:     Dave Chinner <david@...morbit.com>
Cc:     linux-xfs@...r.kernel.org, linux-fsdevel@...r.kernel.org,
        "Darrick J . Wong" <darrick.wong@...cle.com>,
        linux-nvdimm@...ts.01.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 8/9] iomap: Convert iomap_write_end types

On Tue, Aug 25, 2020 at 10:12:23AM +1000, Dave Chinner wrote:
> > -static int
> > -__iomap_write_end(struct inode *inode, loff_t pos, unsigned len,
> > -		unsigned copied, struct page *page)
> > +static size_t __iomap_write_end(struct inode *inode, loff_t pos, size_t len,
> > +		size_t copied, struct page *page)
> >  {
> 
> Please leave the function declarations formatted the same way as
> they currently are. They are done that way intentionally so it is
> easy to grep for function definitions. Not to mention is't much
> easier to read than when the function name is commingled into the
> multiline paramener list like...

I understand that's true for XFS, but it's not true throughout the
rest of the kernel.  This file isn't even consistent:

buffered-io.c:static inline struct iomap_page *to_iomap_page(struct page *page)
buffered-io.c:static inline bool iomap_block_needs_zeroing(struct inode
buffered-io.c:static int iomap_zero(struct inode *inode, loff_t pos, unsigned offset,
buffered-io.c:static void iomap_writepage_end_bio(struct bio *bio)
buffered-io.c:static int __init iomap_init(void)

(i just grepped for ^static so there're other functions not covered by this)

The other fs/iomap/ files are equally inconsistent.