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ntfs3: Convert ntfs_write_begin to use a folio

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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: Matthew Wilcox (Oracle) <willy@infradead.org>
Signed-off-by: Konstantin Komarov <almaz.alexandrovich@paragon-software.com>
This commit is contained in:
Matthew Wilcox (Oracle)
2024-04-22 20:31:52 +01:00
committed by Konstantin Komarov
parent f27a8e2d3d
commit 00c91073a3
1 changed files with 9 additions and 8 deletions
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17
fs/ntfs3/inode.c
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@@ -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;