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Commit 9be26f4c authored by vignesh babu's avatar vignesh babu Committed by Tony Luck
Browse files

[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: default avatarvignesh babu <vignesh.babu@wipro.com>
Signed-off-by: default avatarTony Luck <tony.luck@intel.com>
parent 18954864

arch/ia64/mm/hugetlbpage.c

+2 −1
Original line number Diff line number Diff line
@@ -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");