diff options
| author | vignesh babu <vignesh.babu@wipro.com> | 2007-07-15 23:41:17 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-07-16 09:05:48 -0700 |
| commit | f482394ccbca7234d29cc146d4a2b94f976ce5a1 (patch) | |
| tree | 65a15d5f47a8a5c4ddad16d10971f671277b12e8 /fs/jbd2/revoke.c | |
| parent | 3fc74269c8910573a0e9a7bc303752194ce5cae0 (diff) | |
is_power_of_2(): jbd
Replace (n & (n-1)) in the context of power of 2 checks with
is_power_of_2().
Signed-off-by: vignesh babu <vignesh.babu@wipro.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'fs/jbd2/revoke.c')
| -rw-r--r-- | fs/jbd2/revoke.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/fs/jbd2/revoke.c b/fs/jbd2/revoke.c index 9246e763da7..28cac049a56 100644 --- a/fs/jbd2/revoke.c +++ b/fs/jbd2/revoke.c @@ -68,6 +68,7 @@ #include <linux/list.h> #include <linux/init.h> #endif +#include <linux/log2.h> static struct kmem_cache *jbd2_revoke_record_cache; static struct kmem_cache *jbd2_revoke_table_cache; @@ -212,7 +213,7 @@ int jbd2_journal_init_revoke(journal_t *journal, int hash_size) journal->j_revoke = journal->j_revoke_table[0]; /* Check that the hash_size is a power of two */ - J_ASSERT ((hash_size & (hash_size-1)) == 0); + J_ASSERT(is_power_of_2(hash_size)); journal->j_revoke->hash_size = hash_size; @@ -239,7 +240,7 @@ int jbd2_journal_init_revoke(journal_t *journal, int hash_size) journal->j_revoke = journal->j_revoke_table[1]; /* Check that the hash_size is a power of two */ - J_ASSERT ((hash_size & (hash_size-1)) == 0); + J_ASSERT(is_power_of_2(hash_size)); journal->j_revoke->hash_size = hash_size; |