linux-ext4 - Re: [PATCH 07/10] mm: remove __filemap

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Message-ID: <t4y7xtgfnzfpfupnb7on33n6qzrfxfphsm2hqsa5rx4liqvvbc@wwj7ckhyilpo>
Date: Mon, 13 Oct 2025 13:59:21 +0200
From: Jan Kara <jack@...e.cz>
To: Christoph Hellwig <hch@....de>
Cc: "Matthew Wilcox (Oracle)" <willy@...radead.org>, 
	Eric Van Hensbergen <ericvh@...nel.org>, Latchesar Ionkov <lucho@...kov.net>, 
	Dominique Martinet <asmadeus@...ewreck.org>, Christian Schoenebeck <linux_oss@...debyte.com>, 
	Chris Mason <clm@...com>, David Sterba <dsterba@...e.com>, Mark Fasheh <mark@...heh.com>, 
	Joel Becker <jlbec@...lplan.org>, Joseph Qi <joseph.qi@...ux.alibaba.com>, 
	Alexander Viro <viro@...iv.linux.org.uk>, Christian Brauner <brauner@...nel.org>, 
	Josef Bacik <josef@...icpanda.com>, Jan Kara <jack@...e.cz>, linux-block@...r.kernel.org, 
	v9fs@...ts.linux.dev, linux-btrfs@...r.kernel.org, linux-ext4@...r.kernel.org, 
	linux-fsdevel@...r.kernel.org, jfs-discussion@...ts.sourceforge.net, 
	ocfs2-devel@...ts.linux.dev, linux-xfs@...r.kernel.org, linux-mm@...ck.org
Subject: Re: [PATCH 07/10] mm: remove __filemap_fdatawrite

On Mon 13-10-25 11:58:02, Christoph Hellwig wrote:
> And rewrite filemap_fdatawrite to use filemap_fdatawrite_range instead
> to have a simpler call chain.
> 
> Signed-off-by: Christoph Hellwig <hch@....de>

...

>  int filemap_fdatawrite(struct address_space *mapping)
>  {
> -	return __filemap_fdatawrite(mapping, WB_SYNC_ALL);
> +	return filemap_fdatawrite_range(mapping, 0, LONG_MAX);

As Damien pointed out, here should be LLONG_MAX.


> @@ -470,7 +464,7 @@ EXPORT_SYMBOL_GPL(filemap_fdatawrite_range_kick);
>   */
>  int filemap_flush(struct address_space *mapping)
>  {
> -	return __filemap_fdatawrite(mapping, WB_SYNC_NONE);
> +	return filemap_fdatawrite_range_kick(mapping, 0, LLONG_MAX);
>  }
>  EXPORT_SYMBOL(filemap_flush);

filemap_fdatawrite_range_kick() doesn't exist at this point in the series.

								Honza
-- 
Jan Kara <jack@...e.com>
SUSE Labs, CR