The patch titled
is_power_of_2(): jbd
has been added to the -mm tree. Its filename is
is_power_of_2-jbd.patch
*** Remember to use Documentation/SubmitChecklist when testing your code ***
See http://www.zip.com.au/~akpm/linux/patches/stuff/added-to-mm.txt to find
out what to do about this
------------------------------------------------------
Subject: is_power_of_2(): jbd
From: vignesh babu <vignesh.babu@xxxxxxxxx>
Replace (n & (n-1)) in the context of power of 2 checks with
is_power_of_2().
Signed-off-by: vignesh babu <vignesh.babu@xxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
fs/jbd/revoke.c | 5 +++--
fs/jbd2/revoke.c | 5 +++--
2 files changed, 6 insertions(+), 4 deletions(-)
diff -puN fs/jbd/revoke.c~is_power_of_2-jbd fs/jbd/revoke.c
--- a/fs/jbd/revoke.c~is_power_of_2-jbd
+++ a/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;
@@ -215,7 +216,7 @@ int journal_init_revoke(journal_t *journ
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;
@@ -242,7 +243,7 @@ int journal_init_revoke(journal_t *journ
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 -puN fs/jbd2/revoke.c~is_power_of_2-jbd fs/jbd2/revoke.c
--- a/fs/jbd2/revoke.c~is_power_of_2-jbd
+++ a/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->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->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;
_
Patches currently in -mm which might be from vignesh.babu@xxxxxxxxx are
git-ubi.patch
use-is_power_of_2-in-cxgb3-cxgb3_mainc.patch
use-is_power_of_2-in-myri10ge-myri10gec.patch
is_power_of_2-ext3-superc.patch
is_power_of_2-jbd.patch
is_power_of_2-ext4-superc.patch
-
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