From: vignesh babu Date: Thu, 7 Jun 2007 09:57:46 +0000 (+0530) Subject: [IA64] is_power_of_2-ia64/mm/hugetlbpage.c X-Git-Tag: v2.6.22-rc7~39^2~5 X-Git-Url: http://pilppa.com/gitweb/?a=commitdiff_plain;h=9be26f4c4b138c425598bd3cc50411bd87fce287;p=linux-2.6-omap-h63xx.git [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 Signed-off-by: Tony Luck --- 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 #include #include +#include #include #include #include @@ -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");