diff options
Diffstat (limited to 'mm/swap.c')
-rw-r--r-- | mm/swap.c | 23 |
1 files changed, 16 insertions, 7 deletions
diff --git a/mm/swap.c b/mm/swap.c index 8ff9ba7cf2de..1841c24682f8 100644 --- a/mm/swap.c +++ b/mm/swap.c @@ -135,18 +135,27 @@ EXPORT_SYMBOL(__put_page); * put_pages_list() - release a list of pages * @pages: list of pages threaded on page->lru * - * Release a list of pages which are strung together on page.lru. Currently - * used by read_cache_pages() and related error recovery code. + * Release a list of pages which are strung together on page.lru. */ void put_pages_list(struct list_head *pages) { - while (!list_empty(pages)) { - struct page *victim; + struct page *page, *next; - victim = lru_to_page(pages); - list_del(&victim->lru); - put_page(victim); + list_for_each_entry_safe(page, next, pages, lru) { + if (!put_page_testzero(page)) { + list_del(&page->lru); + continue; + } + if (PageHead(page)) { + list_del(&page->lru); + __put_compound_page(page); + continue; + } + /* Cannot be PageLRU because it's passed to us using the lru */ + __ClearPageWaiters(page); } + + free_unref_page_list(pages); } EXPORT_SYMBOL(put_pages_list); |