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| author | Robert P. J. Day <rpjday@crashcourse.ca> | 2009-06-17 00:33:35 +0200 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2009-06-17 04:47:48 +0200 |
| commit | 02d5341ae53d32681241b27a40397475caef1c83 (patch) | |
| tree | 2f6712b7fb79be511cd7be430c70be4d8755e78d | |
| parent | kernel/kfifo.c: replace conditional test with is_power_of_2() (diff) | |
| download | linux-02d5341ae53d32681241b27a40397475caef1c83.tar.xz linux-02d5341ae53d32681241b27a40397475caef1c83.zip | |
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>
| -rw-r--r-- | fs/ntfs/inode.c | 3 | ||||
| -rw-r--r-- | fs/ntfs/logfile.c | 3 |
2 files changed, 4 insertions, 2 deletions
diff --git a/fs/ntfs/inode.c b/fs/ntfs/inode.c index 82c5085559c6..9938034762cc 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 d7932e95b1fd..89b02985c054 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; } |