From: vignesh babu <vignesh.babu@wipro.com>
To: zippel@linux-m68k.org
Cc: linux-kernel <linux-kernel@vger.kernel.org>,
Kernel Janitors List <kernel-janitors@lists.osdl.org>
Subject: [PATCH]is_power_of_2-hfs/mdb.c
Date: Wed, 13 Jun 2007 09:33:13 +0530 [thread overview]
Message-ID: <1181707393.13391.29.camel@merlin.linuxcoe.com> (raw)
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>
---
diff --git a/fs/hfs/mdb.c b/fs/hfs/mdb.c
index b4651e1..8bda11d 100644
--- a/fs/hfs/mdb.c
+++ b/fs/hfs/mdb.c
@@ -11,6 +11,7 @@
#include <linux/cdrom.h>
#include <linux/genhd.h>
#include <linux/nls.h>
+#include <linux/log2.h>
#include "hfs_fs.h"
#include "btree.h"
@@ -106,7 +107,7 @@ int hfs_mdb_get(struct super_block *sb)
size = min(HFS_SB(sb)->alloc_blksz, (u32)PAGE_SIZE);
/* size must be a multiple of 512 */
- while (size & (size - 1))
+ while (!is_power_of_2(size))
size -= HFS_SECTOR_SIZE;
sect = be16_to_cpu(mdb->drAlBlSt) + part_start;
/* align block size to first sector */
--
Vignesh Babu BM
_____________________________________________________________
"Why is it that every time I'm with you, makes me believe in magic?"
reply other threads:[~2007-06-13 4:02 UTC|newest]
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