diff options
Diffstat (limited to 'mm/swap.c')
| -rw-r--r-- | mm/swap.c | 39 |
1 files changed, 19 insertions, 20 deletions
diff --git a/mm/swap.c b/mm/swap.c index 600235e43704..2e0e871f542f 100644 --- a/mm/swap.c +++ b/mm/swap.c @@ -34,6 +34,25 @@ /* How many pages do we try to swap or page in/out together? */ int page_cluster; +/* + * This path almost never happens for VM activity - pages are normally + * freed via pagevecs. But it gets used by networking. + */ +static void fastcall __page_cache_release(struct page *page) +{ + if (PageLRU(page)) { + unsigned long flags; + struct zone *zone = page_zone(page); + + spin_lock_irqsave(&zone->lru_lock, flags); + VM_BUG_ON(!PageLRU(page)); + __ClearPageLRU(page); + del_page_from_lru(zone, page); + spin_unlock_irqrestore(&zone->lru_lock, flags); + } + free_hot_page(page); +} + static void put_compound_page(struct page *page) { page = (struct page *)page_private(page); @@ -223,26 +242,6 @@ int lru_add_drain_all(void) #endif /* - * This path almost never happens for VM activity - pages are normally - * freed via pagevecs. But it gets used by networking. - */ -void fastcall __page_cache_release(struct page *page) -{ - if (PageLRU(page)) { - unsigned long flags; - struct zone *zone = page_zone(page); - - spin_lock_irqsave(&zone->lru_lock, flags); - VM_BUG_ON(!PageLRU(page)); - __ClearPageLRU(page); - del_page_from_lru(zone, page); - spin_unlock_irqrestore(&zone->lru_lock, flags); - } - free_hot_page(page); -} -EXPORT_SYMBOL(__page_cache_release); - -/* * Batched page_cache_release(). Decrement the reference count on all the * passed pages. If it fell to zero then remove the page from the LRU and * free it. |