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authorvignesh babu <vignesh.babu@wipro.com>2007-07-15 23:41:36 -0700
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2007-07-16 09:05:50 -0700
commit9e8c4273ef4f631a896650bd2ade4c1b6487131b (patch)
tree61b11d755575011af7c4baae7046c32a7a8bfd3f /fs/ufs
parente7c310c36e5fdf1b83a459e5db167bfbd86137db (diff)
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is_power_of_2: ufs/super.c
Replace (n & (n-1)) with is_power_of_2 Signed-off-by: vignesh babu <vignesh.babu@wipro.com> Acked-by: Evgeniy Dushistov <dushistov@mail.ru> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'fs/ufs')
-rw-r--r--fs/ufs/super.c5
1 files changed, 3 insertions, 2 deletions
diff --git a/fs/ufs/super.c b/fs/ufs/super.c
index 22ff6ed55ce9..2b3011689e89 100644
--- a/fs/ufs/super.c
+++ b/fs/ufs/super.c
@@ -87,6 +87,7 @@
#include <linux/smp_lock.h>
#include <linux/buffer_head.h>
#include <linux/vfs.h>
+#include <linux/log2.h>
#include "swab.h"
#include "util.h"
@@ -854,7 +855,7 @@ magic_found:
uspi->s_fmask = fs32_to_cpu(sb, usb1->fs_fmask);
uspi->s_fshift = fs32_to_cpu(sb, usb1->fs_fshift);
- if (uspi->s_fsize & (uspi->s_fsize - 1)) {
+ if (!is_power_of_2(uspi->s_fsize)) {
printk(KERN_ERR "ufs_read_super: fragment size %u is not a power of 2\n",
uspi->s_fsize);
goto failed;
@@ -869,7 +870,7 @@ magic_found:
uspi->s_fsize);
goto failed;
}
- if (uspi->s_bsize & (uspi->s_bsize - 1)) {
+ if (!is_power_of_2(uspi->s_bsize)) {
printk(KERN_ERR "ufs_read_super: block size %u is not a power of 2\n",
uspi->s_bsize);
goto failed;