diff options
Diffstat (limited to 'include/linux/mm.h')
-rw-r--r-- | include/linux/mm.h | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/include/linux/mm.h b/include/linux/mm.h index 695b90437bbc..4670ebd1f622 100644 --- a/include/linux/mm.h +++ b/include/linux/mm.h | |||
@@ -286,6 +286,12 @@ static inline void get_page(struct page *page) | |||
286 | atomic_inc(&page->_count); | 286 | atomic_inc(&page->_count); |
287 | } | 287 | } |
288 | 288 | ||
289 | static inline struct page *virt_to_head_page(const void *x) | ||
290 | { | ||
291 | struct page *page = virt_to_page(x); | ||
292 | return compound_head(page); | ||
293 | } | ||
294 | |||
289 | /* | 295 | /* |
290 | * Setup the page count before being freed into the page allocator for | 296 | * Setup the page count before being freed into the page allocator for |
291 | * the first time (boot or memory hotplug) | 297 | * the first time (boot or memory hotplug) |