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authorRobert P. J. Day <rpjday@crashcourse.ca>2009-06-16 15:33:35 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2009-06-16 19:47:48 -0700
commit02d5341ae53d32681241b27a40397475caef1c83 (patch)
tree2f6712b7fb79be511cd7be430c70be4d8755e78d /fs/ntfs
parentb33112d1cc25e658c334125d127a6ae15d5a0ad6 (diff)
downloadlinux-linaro-02d5341ae53d32681241b27a40397475caef1c83.tar.gz
ntfs: use is_power_of_2() function for clarity.
Signed-off-by: Robert P. J. Day <rpjday@crashcourse.ca> Cc: Anton Altaparmakov <aia21@cantab.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'fs/ntfs')
-rw-r--r--fs/ntfs/inode.c3
-rw-r--r--fs/ntfs/logfile.c3
2 files changed, 4 insertions, 2 deletions
diff --git a/fs/ntfs/inode.c b/fs/ntfs/inode.c
index 82c5085559c..9938034762c 100644
--- a/fs/ntfs/inode.c
+++ b/fs/ntfs/inode.c
@@ -27,6 +27,7 @@
#include <linux/pagemap.h>
#include <linux/quotaops.h>
#include <linux/slab.h>
+#include <linux/log2.h>
#include "aops.h"
#include "attrib.h"
@@ -1570,7 +1571,7 @@ static int ntfs_read_locked_index_inode(struct inode *base_vi, struct inode *vi)
ntfs_debug("Index collation rule is 0x%x.",
le32_to_cpu(ir->collation_rule));
ni->itype.index.block_size = le32_to_cpu(ir->index_block_size);
- if (ni->itype.index.block_size & (ni->itype.index.block_size - 1)) {
+ if (!is_power_of_2(ni->itype.index.block_size)) {
ntfs_error(vi->i_sb, "Index block size (%u) is not a power of "
"two.", ni->itype.index.block_size);
goto unm_err_out;
diff --git a/fs/ntfs/logfile.c b/fs/ntfs/logfile.c
index d7932e95b1f..89b02985c05 100644
--- a/fs/ntfs/logfile.c
+++ b/fs/ntfs/logfile.c
@@ -26,6 +26,7 @@
#include <linux/highmem.h>
#include <linux/buffer_head.h>
#include <linux/bitops.h>
+#include <linux/log2.h>
#include "attrib.h"
#include "aops.h"
@@ -65,7 +66,7 @@ static bool ntfs_check_restart_page_header(struct inode *vi,
logfile_log_page_size < NTFS_BLOCK_SIZE ||
logfile_system_page_size &
(logfile_system_page_size - 1) ||
- logfile_log_page_size & (logfile_log_page_size - 1)) {
+ !is_power_of_2(logfile_log_page_size)) {
ntfs_error(vi->i_sb, "$LogFile uses unsupported page size.");
return false;
}