From 0ba459d26260d4d13346c76642f461b2bf607eef Mon Sep 17 00:00:00 2001
From: Andre Noll <maan@systemlinux.org>
Date: Thu, 18 Jun 2009 08:46:10 +1000
Subject: md/raid5: Use is_power_of_2() in raid5_reconfig()/raid6_reconfig().
Signed-off-by: Andre Noll <maan@systemlinux.org>
Signed-off-by: NeilBrown <neilb@suse.de>
---
drivers/md/raid5.c | 6 ++----
1 file changed, 2 insertions(+), 4 deletions(-)
(limited to 'drivers/md/raid5.c')
diff --git a/drivers/md/raid5.c b/drivers/md/raid5.c
index eaa2d3ee2b5d..72e8a324dcfb 100644
--- a/drivers/md/raid5.c
+++ b/drivers/md/raid5.c
@@ -5167,8 +5167,7 @@ static int raid5_reconfig(mddev_t *mddev, int new_layout, int new_chunk)
if (new_layout >= 0 && !algorithm_valid_raid5(new_layout))
return -EINVAL;
if (new_chunk > 0) {
- if (new_chunk & (new_chunk-1))
- /* not a power of 2 */
+ if (!is_power_of_2(new_chunk))
return -EINVAL;
if (new_chunk < PAGE_SIZE)
return -EINVAL;
@@ -5206,8 +5205,7 @@ static int raid6_reconfig(mddev_t *mddev, int new_layout, int new_chunk)
if (new_layout >= 0 && !algorithm_valid_raid6(new_layout))
return -EINVAL;
if (new_chunk > 0) {
- if (new_chunk & (new_chunk-1))
- /* not a power of 2 */
+ if (!is_power_of_2(new_chunk))
return -EINVAL;
if (new_chunk < PAGE_SIZE)
return -EINVAL;
--
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