The patch titled
is_power_of_2: ufs/super.c
has been added to the -mm tree. Its filename is
is_power_of_2-ufs-superc.patch
*** Remember to use Documentation/SubmitChecklist when testing your code ***
See http://www.zip.com.au/~akpm/linux/patches/stuff/added-to-mm.txt to find
out what to do about this
------------------------------------------------------
Subject: is_power_of_2: ufs/super.c
From: vignesh babu <vignesh.babu@xxxxxxxxx>
Replace (n & (n-1)) with is_power_of_2
Signed-off-by: vignesh babu <vignesh.babu@xxxxxxxxx>
Acked-by: Evgeniy Dushistov <dushistov@xxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
fs/ufs/super.c | 5 +++--
1 files changed, 3 insertions(+), 2 deletions(-)
diff -puN fs/ufs/super.c~is_power_of_2-ufs-superc fs/ufs/super.c
--- a/fs/ufs/super.c~is_power_of_2-ufs-superc
+++ a/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;
_
Patches currently in -mm which might be from vignesh.babu@xxxxxxxxx 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-jbd.patch
is_power_of_2-kernel-kfifoc.patch
is_power_of_2-ufs-superc.patch
is_power_of_2-ext4-superc.patch
-
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