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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>
master
Robert P. J. Day 13 years ago
committed by Linus Torvalds
parent
commit
02d5341ae5
  1. 3
      fs/ntfs/inode.c
  2. 3
      fs/ntfs/logfile.c

3
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;

3
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;
}

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