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>
This commit is contained in:
Robert P. J. Day
2009-06-16 15:33:35 -07:00
committed by Linus Torvalds
parent b33112d1cc
commit 02d5341ae5
2 changed files with 4 additions and 2 deletions

View File

@@ -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;
}