Commit ca6d60f3 authored by Matthew Wilcox (Oracle)'s avatar Matthew Wilcox (Oracle)
Browse files

mm: Turn putback_lru_page() into folio_putback_lru() 



Add a putback_lru_page() wrapper.  Removes a couple of compound_head()
calls.

Signed-off-by: default avatarMatthew Wilcox (Oracle) <willy@infradead.org>
Reviewed-by: default avatarChristoph Hellwig <hch@lst.de>
parent 06d20bdb

mm/folio-compat.c

+5 −0
Original line number Diff line number Diff line
@@ -159,3 +159,8 @@ int isolate_lru_page(struct page *page) 
		return -EBUSY;

	return folio_isolate_lru((struct folio *)page);

}



void putback_lru_page(struct page *page)

{

	folio_putback_lru(page_folio(page));

}

mm/internal.h

+2 −1
Original line number Diff line number Diff line
@@ -154,7 +154,8 @@ extern unsigned long highest_memmap_pfn; 
 */

int isolate_lru_page(struct page *page);

int folio_isolate_lru(struct folio *folio);

extern void putback_lru_page(struct page *page);

void putback_lru_page(struct page *page);

void folio_putback_lru(struct folio *folio);

extern void reclaim_throttle(pg_data_t *pgdat, enum vmscan_throttle_state reason);



/*

mm/vmscan.c

+8 −8
Original line number Diff line number Diff line
@@ -1357,18 +1357,18 @@ int remove_mapping(struct address_space *mapping, struct page *page) 
}



/**

 * putback_lru_page - put previously isolated page onto appropriate LRU list

 * @page: page to be put back to appropriate lru list

 * folio_putback_lru - Put previously isolated folio onto appropriate LRU list.

 * @folio: Folio to be returned to an LRU list.

 *

 * Add previously isolated @page to appropriate LRU list.

 * Page may still be unevictable for other reasons.

 * Add previously isolated @folio to appropriate LRU list.

 * The folio may still be unevictable for other reasons.

 *

 * lru_lock must not be held, interrupts must be enabled.

 * Context: lru_lock must not be held, interrupts must be enabled.

 */

void putback_lru_page(struct page *page)

void folio_putback_lru(struct folio *folio)

{

	lru_cache_add(page);

	put_page(page);		/* drop ref from isolate */

	folio_add_lru(folio);

	folio_put(folio);		/* drop ref from isolate */

}



enum page_references {