Commit f482394c authored by vignesh babu's avatar vignesh babu Committed by Linus Torvalds

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: default avatarvignesh babu <vignesh.babu@wipro.com>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent 3fc74269
...@@ -68,6 +68,7 @@ ...@@ -68,6 +68,7 @@
#include <linux/list.h> #include <linux/list.h>
#include <linux/init.h> #include <linux/init.h>
#endif #endif
#include <linux/log2.h>
static struct kmem_cache *revoke_record_cache; static struct kmem_cache *revoke_record_cache;
static struct kmem_cache *revoke_table_cache; static struct kmem_cache *revoke_table_cache;
...@@ -211,7 +212,7 @@ int journal_init_revoke(journal_t *journal, int hash_size) ...@@ -211,7 +212,7 @@ int journal_init_revoke(journal_t *journal, int hash_size)
journal->j_revoke = journal->j_revoke_table[0]; journal->j_revoke = journal->j_revoke_table[0];
/* Check that the hash_size is a power of two */ /* 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; journal->j_revoke->hash_size = hash_size;
...@@ -238,7 +239,7 @@ int journal_init_revoke(journal_t *journal, int hash_size) ...@@ -238,7 +239,7 @@ int journal_init_revoke(journal_t *journal, int hash_size)
journal->j_revoke = journal->j_revoke_table[1]; journal->j_revoke = journal->j_revoke_table[1];
/* Check that the hash_size is a power of two */ /* 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; journal->j_revoke->hash_size = hash_size;
......
...@@ -68,6 +68,7 @@ ...@@ -68,6 +68,7 @@
#include <linux/list.h> #include <linux/list.h>
#include <linux/init.h> #include <linux/init.h>
#endif #endif
#include <linux/log2.h>
static struct kmem_cache *jbd2_revoke_record_cache; static struct kmem_cache *jbd2_revoke_record_cache;
static struct kmem_cache *jbd2_revoke_table_cache; static struct kmem_cache *jbd2_revoke_table_cache;
...@@ -212,7 +213,7 @@ int jbd2_journal_init_revoke(journal_t *journal, int hash_size) ...@@ -212,7 +213,7 @@ int jbd2_journal_init_revoke(journal_t *journal, int hash_size)
journal->j_revoke = journal->j_revoke_table[0]; journal->j_revoke = journal->j_revoke_table[0];
/* Check that the hash_size is a power of two */ /* 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; journal->j_revoke->hash_size = hash_size;
...@@ -239,7 +240,7 @@ int jbd2_journal_init_revoke(journal_t *journal, int 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]; journal->j_revoke = journal->j_revoke_table[1];
/* Check that the hash_size is a power of two */ /* 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; journal->j_revoke->hash_size = hash_size;
......
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