Re: [PATCH 3/6] iomap: drop pos param from __iomap_[get|put]_folio()

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On Wed, Apr 30, 2025 at 03:01:09PM -0400, Brian Foster wrote:
> Both helpers take the iter and pos as parameters. All callers
> effectively pass iter->pos, so drop the unnecessary pos parameter.
> 
> Signed-off-by: Brian Foster <bfoster@xxxxxxxxxx>

Looks ok,
Reviewed-by: "Darrick J. Wong" <djwong@xxxxxxxxxx>

--D

> ---
>  fs/iomap/buffered-io.c | 17 +++++++++--------
>  1 file changed, 9 insertions(+), 8 deletions(-)
> 
> diff --git a/fs/iomap/buffered-io.c b/fs/iomap/buffered-io.c
> index d1a50300a5dc..5c08b2916bc7 100644
> --- a/fs/iomap/buffered-io.c
> +++ b/fs/iomap/buffered-io.c
> @@ -741,10 +741,10 @@ static int __iomap_write_begin(const struct iomap_iter *iter, loff_t pos,
>  	return 0;
>  }
>  
> -static struct folio *__iomap_get_folio(struct iomap_iter *iter, loff_t pos,
> -		size_t len)
> +static struct folio *__iomap_get_folio(struct iomap_iter *iter, size_t len)
>  {
>  	const struct iomap_folio_ops *folio_ops = iter->iomap.folio_ops;
> +	loff_t pos = iter->pos;
>  
>  	if (folio_ops && folio_ops->get_folio)
>  		return folio_ops->get_folio(iter, pos, len);
> @@ -752,10 +752,11 @@ static struct folio *__iomap_get_folio(struct iomap_iter *iter, loff_t pos,
>  		return iomap_get_folio(iter, pos, len);
>  }
>  
> -static void __iomap_put_folio(struct iomap_iter *iter, loff_t pos, size_t ret,
> +static void __iomap_put_folio(struct iomap_iter *iter, size_t ret,
>  		struct folio *folio)
>  {
>  	const struct iomap_folio_ops *folio_ops = iter->iomap.folio_ops;
> +	loff_t pos = iter->pos;
>  
>  	if (folio_ops && folio_ops->put_folio) {
>  		folio_ops->put_folio(iter->inode, pos, ret, folio);
> @@ -793,7 +794,7 @@ static int iomap_write_begin(struct iomap_iter *iter, size_t len,
>  	if (!mapping_large_folio_support(iter->inode->i_mapping))
>  		len = min_t(size_t, len, PAGE_SIZE - offset_in_page(pos));
>  
> -	folio = __iomap_get_folio(iter, pos, len);
> +	folio = __iomap_get_folio(iter, len);
>  	if (IS_ERR(folio))
>  		return PTR_ERR(folio);
>  
> @@ -834,7 +835,7 @@ static int iomap_write_begin(struct iomap_iter *iter, size_t len,
>  	return 0;
>  
>  out_unlock:
> -	__iomap_put_folio(iter, pos, 0, folio);
> +	__iomap_put_folio(iter, 0, folio);
>  
>  	return status;
>  }
> @@ -983,7 +984,7 @@ static int iomap_write_iter(struct iomap_iter *iter, struct iov_iter *i)
>  			i_size_write(iter->inode, pos + written);
>  			iter->iomap.flags |= IOMAP_F_SIZE_CHANGED;
>  		}
> -		__iomap_put_folio(iter, pos, written, folio);
> +		__iomap_put_folio(iter, written, folio);
>  
>  		if (old_size < pos)
>  			pagecache_isize_extended(iter->inode, old_size, pos);
> @@ -1295,7 +1296,7 @@ static int iomap_unshare_iter(struct iomap_iter *iter)
>  			bytes = folio_size(folio) - offset;
>  
>  		ret = iomap_write_end(iter, bytes, bytes, folio);
> -		__iomap_put_folio(iter, pos, bytes, folio);
> +		__iomap_put_folio(iter, bytes, folio);
>  		if (WARN_ON_ONCE(!ret))
>  			return -EIO;
>  
> @@ -1376,7 +1377,7 @@ static int iomap_zero_iter(struct iomap_iter *iter, bool *did_zero)
>  		folio_mark_accessed(folio);
>  
>  		ret = iomap_write_end(iter, bytes, bytes, folio);
> -		__iomap_put_folio(iter, pos, bytes, folio);
> +		__iomap_put_folio(iter, bytes, folio);
>  		if (WARN_ON_ONCE(!ret))
>  			return -EIO;
>  
> -- 
> 2.49.0
> 
> 




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