diff options
Diffstat (limited to 'include/linux/mm.h')
| -rw-r--r-- | include/linux/mm.h | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/include/linux/mm.h b/include/linux/mm.h index a862a96952e..f28a0338574 100644 --- a/include/linux/mm.h +++ b/include/linux/mm.h @@ -235,6 +235,14 @@ static inline int get_page_unless_zero(struct page *page) struct page *vmalloc_to_page(const void *addr); unsigned long vmalloc_to_pfn(const void *addr); +/* Determine if an address is within the vmalloc range */ +static inline int is_vmalloc_addr(const void *x) +{ + unsigned long addr = (unsigned long)x; + + return addr >= VMALLOC_START && addr < VMALLOC_END; +} + static inline struct page *compound_head(struct page *page) { if (unlikely(PageTail(page))) |