Commit 07c22b56 authored by Andreas Gruenbacher's avatar Andreas Gruenbacher Committed by Darrick J. Wong
Browse files

iomap: Add __iomap_get_folio helper 



Add an __iomap_get_folio() helper as the counterpart of the existing
__iomap_put_folio() helper.  Use the new helper in iomap_write_begin().
Not a functional change.

Signed-off-by: default avatarAndreas Gruenbacher <agruenba@redhat.com>
Reviewed-by: default avatarDarrick J. Wong <djwong@kernel.org>
Signed-off-by: default avatarDarrick J. Wong <djwong@kernel.org>
parent 9060bc4d

fs/iomap/buffered-io.c

+12 −4
Original line number Original line Diff line number Diff line
@@ -602,6 +602,17 @@ static int __iomap_write_begin(const struct iomap_iter *iter, loff_t pos, 
	return 0;

	return 0;

}

}





static struct folio *__iomap_get_folio(struct iomap_iter *iter, loff_t pos,

		size_t len)

{

	const struct iomap_page_ops *page_ops = iter->iomap.page_ops;



	if (page_ops && page_ops->page_prepare)

		return page_ops->page_prepare(iter, pos, len);

	else

		return iomap_get_folio(iter, pos);

}



static void __iomap_put_folio(struct iomap_iter *iter, loff_t pos, size_t ret,

static void __iomap_put_folio(struct iomap_iter *iter, loff_t pos, size_t ret,

		struct folio *folio)

		struct folio *folio)

{

{
@@ -642,10 +653,7 @@ static int iomap_write_begin(struct iomap_iter *iter, loff_t pos, 
	if (!mapping_large_folio_support(iter->inode->i_mapping))

	if (!mapping_large_folio_support(iter->inode->i_mapping))

		len = min_t(size_t, len, PAGE_SIZE - offset_in_page(pos));

		len = min_t(size_t, len, PAGE_SIZE - offset_in_page(pos));





	if (page_ops && page_ops->page_prepare)

	folio = __iomap_get_folio(iter, pos, len);

		folio = page_ops->page_prepare(iter, pos, len);

	else

		folio = iomap_get_folio(iter, pos);

	if (IS_ERR(folio))

	if (IS_ERR(folio))

		return PTR_ERR(folio);

		return PTR_ERR(folio);