diff options
Diffstat (limited to 'mm/page_alloc.c')
| -rw-r--r-- | mm/page_alloc.c | 24 |
1 files changed, 5 insertions, 19 deletions
diff --git a/mm/page_alloc.c b/mm/page_alloc.c index a97d6fa9cea0..31fec31be31e 100644 --- a/mm/page_alloc.c +++ b/mm/page_alloc.c @@ -284,11 +284,6 @@ const char * const migratetype_names[MIGRATE_TYPES] = { #endif }; -static compound_page_dtor * const compound_page_dtors[NR_COMPOUND_DTORS] = { - [NULL_COMPOUND_DTOR] = NULL, - [COMPOUND_PAGE_DTOR] = free_compound_page, -}; - int min_free_kbytes = 1024; int user_min_free_kbytes = -1; static int watermark_boost_factor __read_mostly = 15000; @@ -577,19 +572,13 @@ static inline void free_the_page(struct page *page, unsigned int order) * The remaining PAGE_SIZE pages are called "tail pages". PageTail() is encoded * in bit 0 of page->compound_head. The rest of bits is pointer to head page. * - * The first tail page's ->compound_dtor holds the offset in array of compound - * page destructors. See compound_page_dtors. + * The first tail page's ->compound_dtor describes how to destroy the + * compound page. * * The first tail page's ->compound_order holds the order of allocation. * This usage means that zero-order pages may not be compound. */ -void free_compound_page(struct page *page) -{ - mem_cgroup_uncharge(page_folio(page)); - free_the_page(page, compound_order(page)); -} - void prep_compound_page(struct page *page, unsigned int order) { int i; @@ -611,14 +600,11 @@ void destroy_large_folio(struct folio *folio) return; } - if (folio_test_transhuge(folio) && dtor == TRANSHUGE_PAGE_DTOR) { + if (folio_test_transhuge(folio) && dtor == TRANSHUGE_PAGE_DTOR) folio_undo_large_rmappable(folio); - free_compound_page(&folio->page); - return; - } - VM_BUG_ON_FOLIO(dtor >= NR_COMPOUND_DTORS, folio); - compound_page_dtors[dtor](&folio->page); + mem_cgroup_uncharge(folio); + free_the_page(&folio->page, folio_order(folio)); } static inline void set_buddy_order(struct page *page, unsigned int order) |