Unverified Commit 00c91073 authored by Matthew Wilcox (Oracle)'s avatar Matthew Wilcox (Oracle) Committed by Konstantin Komarov
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ntfs3: Convert ntfs_write_begin to use a folio 



Retrieve a folio from the page cache instead of a precise page.
This function is now large folio safe, but its called function is not.

Signed-off-by: default avatarMatthew Wilcox (Oracle) <willy@infradead.org>
Signed-off-by: default avatarKonstantin Komarov <almaz.alexandrovich@paragon-software.com>
parent f27a8e2d

fs/ntfs3/inode.c

+9 −8
Original line number Diff line number Diff line
@@ -913,24 +913,25 @@ int ntfs_write_begin(struct file *file, struct address_space *mapping, 


	*pagep = NULL;

	if (is_resident(ni)) {

		struct page *page =

			grab_cache_page_write_begin(mapping, pos >> PAGE_SHIFT);

		struct folio *folio = __filemap_get_folio(mapping,

				pos >> PAGE_SHIFT, FGP_WRITEBEGIN,

				mapping_gfp_mask(mapping));



		if (!page) {

			err = -ENOMEM;

		if (IS_ERR(folio)) {

			err = PTR_ERR(folio);

			goto out;

		}



		ni_lock(ni);

		err = attr_data_read_resident(ni, page);

		err = attr_data_read_resident(ni, &folio->page);

		ni_unlock(ni);



		if (!err) {

			*pagep = page;

			*pagep = &folio->page;

			goto out;

		}

		unlock_page(page);

		put_page(page);

		folio_unlock(folio);

		folio_put(folio);



		if (err != E_NTFS_NONRESIDENT)

			goto out;