diff options
| author | vignesh babu <vignesh.babu@wipro.com> | 2007-06-07 15:27:46 +0530 |
|---|---|---|
| committer | Tony Luck <tony.luck@intel.com> | 2007-06-26 13:32:59 -0700 |
| commit | 9be26f4c4b138c425598bd3cc50411bd87fce287 (patch) | |
| tree | 9517030267a1bd3be5f5e0d7d08178f283f031e4 /arch/ia64 | |
| parent | 189548642c5962e60c3667bdb3a703fe0bed12a6 (diff) | |
[IA64] is_power_of_2-ia64/mm/hugetlbpage.c
Replacing (n & (n-1)) in the context of power of 2 checks
with is_power_of_2
Signed-off-by: vignesh babu <vignesh.babu@wipro.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
Diffstat (limited to 'arch/ia64')
| -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 1346b7f0539..d22861c5b04 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"); |