Re: [PATCH 3/4] zonefs: remove ->writepage

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On 7/11/22 13:14, Christoph Hellwig wrote:
> ->writepage is only used for single page writeback from memory reclaim,
> and not called at all for cgroup writeback.  Follow the lead of XFS
> and remove ->writepage and rely entirely on ->writepages.
> 
> Signed-off-by: Christoph Hellwig <hch@xxxxxx>
> ---
>  fs/zonefs/super.c | 8 --------
>  1 file changed, 8 deletions(-)
> 
> diff --git a/fs/zonefs/super.c b/fs/zonefs/super.c
> index 053299758deb9..062c3f1da0327 100644
> --- a/fs/zonefs/super.c
> +++ b/fs/zonefs/super.c
> @@ -232,13 +232,6 @@ static const struct iomap_writeback_ops zonefs_writeback_ops = {
>  	.map_blocks		= zonefs_write_map_blocks,
>  };
>  
> -static int zonefs_writepage(struct page *page, struct writeback_control *wbc)
> -{
> -	struct iomap_writepage_ctx wpc = { };
> -
> -	return iomap_writepage(page, wbc, &wpc, &zonefs_writeback_ops);
> -}
> -
>  static int zonefs_writepages(struct address_space *mapping,
>  			     struct writeback_control *wbc)
>  {
> @@ -266,7 +259,6 @@ static int zonefs_swap_activate(struct swap_info_struct *sis,
>  static const struct address_space_operations zonefs_file_aops = {
>  	.read_folio		= zonefs_read_folio,
>  	.readahead		= zonefs_readahead,
> -	.writepage		= zonefs_writepage,
>  	.writepages		= zonefs_writepages,
>  	.dirty_folio		= filemap_dirty_folio,
>  	.release_folio		= iomap_release_folio,

Acked-by: Damien Le Moal <damien.lemoal@xxxxxxxxxxxxxxxxxx>

-- 
Damien Le Moal
Western Digital Research



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