Commit ac09d88b authored by Matthew Wilcox (Oracle)'s avatar Matthew Wilcox (Oracle)
Browse files

befs: Convert befs_symlink_read_folio() to use a folio 



This is a straightforward conversion from the page APIs to the folio
APIs.  Symlinks are not allowed to be larger than PAGE_SIZE, so there
is little work to do here.

Signed-off-by: default avatarMatthew Wilcox (Oracle) <willy@infradead.org>
parent 4fdc08d4

fs/befs/linuxvfs.c

+7 −9
Original line number Diff line number Diff line
@@ -108,8 +108,7 @@ static const struct export_operations befs_export_operations = { 
 * passes it the address of befs_get_block, for mapping file

 * positions to disk blocks.

 */

static int

befs_read_folio(struct file *file, struct folio *folio)

static int befs_read_folio(struct file *file, struct folio *folio)

{

	return block_read_full_folio(folio, befs_get_block);

}
@@ -470,13 +469,12 @@ befs_destroy_inodecache(void) 
 */

static int befs_symlink_read_folio(struct file *unused, struct folio *folio)

{

	struct page *page = &folio->page;

	struct inode *inode = page->mapping->host;

	struct inode *inode = folio->mapping->host;

	struct super_block *sb = inode->i_sb;

	struct befs_inode_info *befs_ino = BEFS_I(inode);

	befs_data_stream *data = &befs_ino->i_data.ds;

	befs_off_t len = data->size;

	char *link = page_address(page);

	char *link = folio_address(folio);



	if (len == 0 || len > PAGE_SIZE) {

		befs_error(sb, "Long symlink with illegal length");
@@ -489,12 +487,12 @@ static int befs_symlink_read_folio(struct file *unused, struct folio *folio) 
		goto fail;

	}

	link[len - 1] = '\0';

	SetPageUptodate(page);

	unlock_page(page);

	folio_mark_uptodate(folio);

	folio_unlock(folio);

	return 0;

fail:

	SetPageError(page);

	unlock_page(page);

	folio_set_error(folio);

	folio_unlock(folio);

	return -EIO;

}