journal_init_revoke_table is only called with positive hash_size
(JOURNAL_REVOKE_DEFAULT_HASH) so we can replace loop shift by ilog2
Cc: Andrew Morton <a...@linux-foundation.org>
Cc: Jan Kara <j...@suse.cz>
Cc: Joe Perches <j...@perches.com>
Signed-off-by: Fabian Frederick <f...@skynet.be>
---
fs/jbd/revoke.c | 12 ++++--------
1 file changed, 4 insertions(+), 8 deletions(-)
diff --git a/fs/jbd/revoke.c b/fs/jbd/revoke.c
index 25c713e..8898bbd 100644
--- a/fs/jbd/revoke.c
+++ b/fs/jbd/revoke.c
@@ -231,19 +231,15 @@ record_cache_failure:
static struct jbd_revoke_table_s *journal_init_revoke_table(int hash_size)
{
- int shift = 0;
- int tmp = hash_size;
+ int i;
struct jbd_revoke_table_s *table;
table = kmem_cache_alloc(revoke_table_cache, GFP_KERNEL);
if (!table)
goto out;
- while((tmp >>= 1UL) != 0UL)
- shift++;
-
table->hash_size = hash_size;
- table->hash_shift = shift;
+ table->hash_shift = ilog2(hash_size);
table->hash_table =
kmalloc(hash_size * sizeof(struct list_head), GFP_KERNEL);
if (!table->hash_table) {
@@ -252,8 +248,8 @@ static struct jbd_revoke_table_s
*journal_init_revoke_table(int hash_size)
goto out;
}
- for (tmp = 0; tmp < hash_size; tmp++)
- INIT_LIST_HEAD(&table->hash_table[tmp]);
+ for (i = 0; i < hash_size; i++)
+ INIT_LIST_HEAD(&table->hash_table[i]);
out:
return table;
--
1.8.4.5
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