Commit be6b969c authored by Matthew Wilcox (Oracle)'s avatar Matthew Wilcox (Oracle)
Browse files

reiserfs: Convert release_buffer_page() to use a folio 



Saves 671 bytes from an allmodconfig build (!)

Function                                     old     new   delta
release_buffer_page                         1617     946    -671
Total: Before=67656, After=66985, chg -0.99%

Signed-off-by: default avatarMatthew Wilcox (Oracle) <willy@infradead.org>
Reviewed-by: default avatarJeff Layton <jlayton@kernel.org>
parent 704ead2b

fs/reiserfs/journal.c

+7 −7
Original line number Diff line number Diff line
@@ -601,14 +601,14 @@ static int journal_list_still_alive(struct super_block *s, 
 */

static void release_buffer_page(struct buffer_head *bh)

{

	struct page *page = bh->b_page;

	if (!page->mapping && trylock_page(page)) {

		get_page(page);

	struct folio *folio = page_folio(bh->b_page);

	if (!folio->mapping && folio_trylock(folio)) {

		folio_get(folio);

		put_bh(bh);

		if (!page->mapping)

			try_to_free_buffers(page);

		unlock_page(page);

		put_page(page);

		if (!folio->mapping)

			try_to_free_buffers(&folio->page);

		folio_unlock(folio);

		folio_put(folio);

	} else {

		put_bh(bh);

	}