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mm: Turn putback_lru_page() into folio_putback_lru()

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

Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
This commit is contained in:
Matthew Wilcox (Oracle) 2022-01-21 08:41:46 -05:00
parent 06d20bdb98
commit ca6d60f3f1
3 changed files with 15 additions and 9 deletions
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5
mm/folio-compat.c
View File

@ -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));
}

3
mm/internal.h
View File

@ -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);
/*

16
mm/vmscan.c
View File

@ -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 {