linux-kernel - Re: [PATCH] iomap: Export iomap_page_create and iomap_set_range

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Date:   Tue, 10 Dec 2019 12:32:52 -0800
From:   "Darrick J. Wong" <darrick.wong@...cle.com>
To:     Andreas Gruenbacher <agruenba@...hat.com>
Cc:     linux-xfs@...r.kernel.org, linux-fsdevel@...r.kernel.org,
        linux-kernel@...r.kernel.org, cluster-devel@...hat.com
Subject: Re: [PATCH] iomap: Export iomap_page_create and
 iomap_set_range_uptodate

On Tue, Dec 10, 2019 at 11:29:16AM +0100, Andreas Gruenbacher wrote:
> These two functions are needed by filesystems for converting inline
> ("stuffed") inodes into non-inline inodes.
> 
> Signed-off-by: Andreas Gruenbacher <agruenba@...hat.com>

Looks fine to me... this is a 5.6 change, correct?

Reviewed-by: Darrick J. Wong <darrick.wong@...cle.com>

--D

> ---
>  fs/iomap/buffered-io.c | 6 ++++--
>  include/linux/iomap.h  | 5 +++++
>  2 files changed, 9 insertions(+), 2 deletions(-)
> 
> diff --git a/fs/iomap/buffered-io.c b/fs/iomap/buffered-io.c
> index 828444e14d09..e8f6d7ba4e3c 100644
> --- a/fs/iomap/buffered-io.c
> +++ b/fs/iomap/buffered-io.c
> @@ -41,7 +41,7 @@ static inline struct iomap_page *to_iomap_page(struct page *page)
>  
>  static struct bio_set iomap_ioend_bioset;
>  
> -static struct iomap_page *
> +struct iomap_page *
>  iomap_page_create(struct inode *inode, struct page *page)
>  {
>  	struct iomap_page *iop = to_iomap_page(page);
> @@ -64,6 +64,7 @@ iomap_page_create(struct inode *inode, struct page *page)
>  	SetPagePrivate(page);
>  	return iop;
>  }
> +EXPORT_SYMBOL(iomap_page_create);
>  
>  static void
>  iomap_page_release(struct page *page)
> @@ -164,7 +165,7 @@ iomap_iop_set_range_uptodate(struct page *page, unsigned off, unsigned len)
>  	spin_unlock_irqrestore(&iop->uptodate_lock, flags);
>  }
>  
> -static void
> +void
>  iomap_set_range_uptodate(struct page *page, unsigned off, unsigned len)
>  {
>  	if (PageError(page))
> @@ -175,6 +176,7 @@ iomap_set_range_uptodate(struct page *page, unsigned off, unsigned len)
>  	else
>  		SetPageUptodate(page);
>  }
> +EXPORT_SYMBOL(iomap_set_range_uptodate);
>  
>  static void
>  iomap_read_finish(struct iomap_page *iop, struct page *page)
> diff --git a/include/linux/iomap.h b/include/linux/iomap.h
> index 8b09463dae0d..b00f9bc396b1 100644
> --- a/include/linux/iomap.h
> +++ b/include/linux/iomap.h
> @@ -13,6 +13,7 @@
>  struct address_space;
>  struct fiemap_extent_info;
>  struct inode;
> +struct iomap_page;
>  struct iomap_writepage_ctx;
>  struct iov_iter;
>  struct kiocb;
> @@ -152,6 +153,10 @@ loff_t iomap_apply(struct inode *inode, loff_t pos, loff_t length,
>  		unsigned flags, const struct iomap_ops *ops, void *data,
>  		iomap_actor_t actor);
>  
> +struct iomap_page *iomap_page_create(struct inode *inode, struct page *page);
> +void iomap_set_range_uptodate(struct page *page, unsigned off, unsigned len);
> +
> +
>  ssize_t iomap_file_buffered_write(struct kiocb *iocb, struct iov_iter *from,
>  		const struct iomap_ops *ops);
>  int iomap_readpage(struct page *page, const struct iomap_ops *ops);
> -- 
> 2.20.1
>