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| author | vignesh babu <vignesh.babu@wipro.com> | 2007-07-16 08:41:36 +0200 |
|---|---|---|
| committer | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-07-16 18:05:50 +0200 |
| commit | 9e8c4273ef4f631a896650bd2ade4c1b6487131b (patch) | |
| tree | 61b11d755575011af7c4baae7046c32a7a8bfd3f /fs/ufs | |
| parent | parport_pc: it887x fix (diff) | |
| download | linux-9e8c4273ef4f631a896650bd2ade4c1b6487131b.tar.xz linux-9e8c4273ef4f631a896650bd2ade4c1b6487131b.zip | |
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.c | 5 |
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; |