diff options
Diffstat (limited to 'mm/page_owner.c')
| -rw-r--r-- | mm/page_owner.c | 15 |
1 files changed, 7 insertions, 8 deletions
diff --git a/mm/page_owner.c b/mm/page_owner.c index dee931184788..d3cf5d336ccf 100644 --- a/mm/page_owner.c +++ b/mm/page_owner.c @@ -156,10 +156,10 @@ void __reset_page_owner(struct page *page, unsigned int order) handle = save_stack(GFP_NOWAIT | __GFP_NOWARN); #endif + page_ext = lookup_page_ext(page); + if (unlikely(!page_ext)) + return; for (i = 0; i < (1 << order); i++) { - page_ext = lookup_page_ext(page + i); - if (unlikely(!page_ext)) - continue; __clear_bit(PAGE_EXT_OWNER_ACTIVE, &page_ext->flags); #ifdef CONFIG_DEBUG_PAGEALLOC if (debug_pagealloc_enabled()) { @@ -167,6 +167,7 @@ void __reset_page_owner(struct page *page, unsigned int order) page_owner->free_handle = handle; } #endif + page_ext = page_ext_next(page_ext); } } @@ -186,7 +187,7 @@ static inline void __set_page_owner_handle(struct page *page, __set_bit(PAGE_EXT_OWNER, &page_ext->flags); __set_bit(PAGE_EXT_OWNER_ACTIVE, &page_ext->flags); - page_ext = lookup_page_ext(page + i); + page_ext = page_ext_next(page_ext); } } @@ -224,12 +225,10 @@ void __split_page_owner(struct page *page, unsigned int order) if (unlikely(!page_ext)) return; - page_owner = get_page_owner(page_ext); - page_owner->order = 0; - for (i = 1; i < (1 << order); i++) { - page_ext = lookup_page_ext(page + i); + for (i = 0; i < (1 << order); i++) { page_owner = get_page_owner(page_ext); page_owner->order = 0; + page_ext = page_ext_next(page_ext); } } |