diff options
| -rw-r--r-- | arch/ia64/mm/hugetlbpage.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/arch/ia64/mm/hugetlbpage.c b/arch/ia64/mm/hugetlbpage.c index 1346b7f05397..d22861c5b04c 100644 --- a/arch/ia64/mm/hugetlbpage.c +++ b/arch/ia64/mm/hugetlbpage.c @@ -15,6 +15,7 @@ #include <linux/pagemap.h> #include <linux/slab.h> #include <linux/sysctl.h> +#include <linux/log2.h> #include <asm/mman.h> #include <asm/pgalloc.h> #include <asm/tlb.h> @@ -182,7 +183,7 @@ static int __init hugetlb_setup_sz(char *str) tr_pages = 0x15557000UL; size = memparse(str, &str); - if (*str || (size & (size-1)) || !(tr_pages & size) || + if (*str || !is_power_of_2(size) || !(tr_pages & size) || size <= PAGE_SIZE || size >= (1UL << PAGE_SHIFT << MAX_ORDER)) { printk(KERN_WARNING "Invalid huge page size specified\n"); |