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authorvignesh babu <vignesh.babu@wipro.com>2007-07-15 23:41:17 -0700
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2007-07-16 09:05:48 -0700
commitf482394ccbca7234d29cc146d4a2b94f976ce5a1 (patch)
tree65a15d5f47a8a5c4ddad16d10971f671277b12e8
parent3fc74269c8910573a0e9a7bc303752194ce5cae0 (diff)
downloadlinux-bcache-f482394ccbca7234d29cc146d4a2b94f976ce5a1.tar.zst
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>
-rw-r--r--fs/jbd/revoke.c5
-rw-r--r--fs/jbd2/revoke.c5
2 files changed, 6 insertions, 4 deletions
diff --git a/fs/jbd/revoke.c b/fs/jbd/revoke.c
index 824e3b7d4ec1..8db2fa25170b 100644
--- a/fs/jbd/revoke.c
+++ b/fs/jbd/revoke.c
@@ -68,6 +68,7 @@
#include <linux/list.h>
#include <linux/init.h>
#endif
+#include <linux/log2.h>
static struct kmem_cache *revoke_record_cache;
static struct kmem_cache *revoke_table_cache;
@@ -211,7 +212,7 @@ int 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;
@@ -238,7 +239,7 @@ int 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;
diff --git a/fs/jbd2/revoke.c b/fs/jbd2/revoke.c
index 9246e763da78..28cac049a56b 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;