Messages in this thread Patch in this message | | | Subject | [EXT4 set 9][PATCH 2/5]Morecleanups: use is_power_of_2 () in fill_super | From | Mingming Cao <> | Date | Sun, 01 Jul 2007 03:38:37 -0400 |
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Subject: is_power_of_2: ext4/super.c From: vignesh babu <vignesh.babu@wipro.com>
Replace (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> Cc: <linux-ext4@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Dave Kleikamp <shaggy@linux.vnet.ibm.com> ---
fs/ext4/super.c | 3 ++- 1 files changed, 2 insertions(+), 1 deletion(-)
diff -puN fs/ext4/super.c~is_power_of_2-ext4-superc fs/ext4/super.c --- a/fs/ext4/super.c~is_power_of_2-ext4-superc +++ a/fs/ext4/super.c @@ -36,6 +36,7 @@ #include <linux/namei.h> #include <linux/quotaops.h> #include <linux/seq_file.h> +#include <linux/log2.h>
#include <asm/uaccess.h>
@@ -1662,7 +1663,7 @@ static int ext4_fill_super (struct super sbi->s_inode_size = le16_to_cpu(es->s_inode_size); sbi->s_first_ino = le32_to_cpu(es->s_first_ino); if ((sbi->s_inode_size < EXT4_GOOD_OLD_INODE_SIZE) || - (sbi->s_inode_size & (sbi->s_inode_size - 1)) || + (!is_power_of_2(sbi->s_inode_size)) || (sbi->s_inode_size > blocksize)) { printk (KERN_ERR "EXT4-fs: unsupported inode size: %d\n", _ Patches currently in -mm which might be from vignesh.babu@wipro.com are
git-ubi.patch use-is_power_of_2-in-cxgb3-cxgb3_mainc.patch use-is_power_of_2-in-myri10ge-myri10gec.patch is_power_of_2-ext3-superc.patch is_power_of_2-ext4-superc.patch is_pwoer_of_2-jbd.patch
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