X-Git-Url: https://git.openpandora.org/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=mm%2Fswap.c;h=2e0e871f542f45da3bddacbbe5fe4647339e1729;hb=c730f5b621afa33e9f4939da9078669162ebff4e;hp=687686a61f7cb81cc75cd65a636ade65eb00d08d;hpb=499792ec6dc737467e5486527cef95ed7d74fba9;p=pandora-kernel.git diff --git a/mm/swap.c b/mm/swap.c index 687686a61f7c..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); @@ -222,26 +241,6 @@ 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); - 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 @@ -284,7 +283,7 @@ void release_pages(struct page **pages, int nr, int cold) zone = pagezone; spin_lock_irq(&zone->lru_lock); } - BUG_ON(!PageLRU(page)); + VM_BUG_ON(!PageLRU(page)); __ClearPageLRU(page); del_page_from_lru(zone, page); } @@ -337,7 +336,7 @@ void __pagevec_release_nonlru(struct pagevec *pvec) for (i = 0; i < pagevec_count(pvec); i++) { struct page *page = pvec->pages[i]; - BUG_ON(PageLRU(page)); + VM_BUG_ON(PageLRU(page)); if (put_page_testzero(page)) pagevec_add(&pages_to_free, page); } @@ -364,7 +363,7 @@ void __pagevec_lru_add(struct pagevec *pvec) zone = pagezone; spin_lock_irq(&zone->lru_lock); } - BUG_ON(PageLRU(page)); + VM_BUG_ON(PageLRU(page)); SetPageLRU(page); add_page_to_inactive_list(zone, page); } @@ -391,9 +390,9 @@ void __pagevec_lru_add_active(struct pagevec *pvec) zone = pagezone; spin_lock_irq(&zone->lru_lock); } - BUG_ON(PageLRU(page)); + VM_BUG_ON(PageLRU(page)); SetPageLRU(page); - BUG_ON(PageActive(page)); + VM_BUG_ON(PageActive(page)); SetPageActive(page); add_page_to_active_list(zone, page); }