jbd2: JBD_XXX to JBD2_XXX naming cleanup

change JBD_XXX macros to JBD2_XXX in JBD2/Ext4

Signed-off-by: Mingming Cao <cmm@us.ibm.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>

9 files changed, 30 insertions, 29 deletions

diff --git a/fs/ext4/extents.c b/fs/ext4/extents.c
index 78beb096f57d..2be404f68a76 100644
--- a/fs/ext4/extents.c
+++ b/fs/ext4/extents.c
@@ -33,7 +33,7 @@
 #include <linux/fs.h>
 #include <linux/time.h>
 #include <linux/ext4_jbd2.h>
-#include <linux/jbd.h>
+#include <linux/jbd2.h>
 #include <linux/highuid.h>
 #include <linux/pagemap.h>
 #include <linux/quotaops.h>
diff --git a/fs/ext4/super.c b/fs/ext4/super.c
index 4c8d31c61454..83f9cd358e5a 100644
--- a/fs/ext4/super.c
+++ b/fs/ext4/super.c
@@ -1037,7 +1037,7 @@ static int parse_options (char *options, struct super_block *sb,
                         if (option < 0)
                                 return 0;
                         if (option == 0)
-                                option = JBD_DEFAULT_MAX_COMMIT_AGE;
+                                option = JBD2_DEFAULT_MAX_COMMIT_AGE;
                         sbi->s_commit_interval = HZ * option;
                         break;
                 case Opt_data_journal:
diff --git a/fs/jbd2/commit.c b/fs/jbd2/commit.c
index 2cac34ac756a..b898ee4ef16a 100644
--- a/fs/jbd2/commit.c
+++ b/fs/jbd2/commit.c
@@ -278,7 +278,7 @@ static inline void write_tag_block(int tag_bytes, journal_block_tag_t *tag,
                                    unsigned long long block)
 {
         tag->t_blocknr = cpu_to_be32(block & (u32)~0);
-        if (tag_bytes > JBD_TAG_SIZE32)
+        if (tag_bytes > JBD2_TAG_SIZE32)
                 tag->t_blocknr_high = cpu_to_be32((block >> 31) >> 1);
 }
 
diff --git a/fs/jbd2/journal.c b/fs/jbd2/journal.c
index f12c65b81456..ff07bff88cf9 100644
--- a/fs/jbd2/journal.c
+++ b/fs/jbd2/journal.c
@@ -670,7 +670,7 @@ static journal_t * journal_init_common (void)
         spin_lock_init(&journal->j_list_lock);
         spin_lock_init(&journal->j_state_lock);
 
-        journal->j_commit_interval = (HZ * JBD_DEFAULT_MAX_COMMIT_AGE);
+        journal->j_commit_interval = (HZ * JBD2_DEFAULT_MAX_COMMIT_AGE);
 
         /* The journal is marked for error until we succeed with recovery! */
         journal->j_flags = JBD2_ABORT;
@@ -1612,9 +1612,9 @@ int jbd2_journal_blocks_per_page(struct inode *inode)
 size_t journal_tag_bytes(journal_t *journal)
 {
         if (JBD2_HAS_INCOMPAT_FEATURE(journal, JBD2_FEATURE_INCOMPAT_64BIT))
-                return JBD_TAG_SIZE64;
+                return JBD2_TAG_SIZE64;
         else
-                return JBD_TAG_SIZE32;
+                return JBD2_TAG_SIZE32;
 }
 
 /*
@@ -1681,7 +1681,7 @@ static void journal_free_journal_head(struct journal_head *jh)
 {
 #ifdef CONFIG_JBD2_DEBUG
         atomic_dec(&nr_journal_heads);
-        memset(jh, JBD_POISON_FREE, sizeof(*jh));
+        memset(jh, JBD2_POISON_FREE, sizeof(*jh));
 #endif
         kmem_cache_free(jbd2_journal_head_cache, jh);
 }
diff --git a/fs/jbd2/recovery.c b/fs/jbd2/recovery.c
index b50be8a044eb..d0ce627539ef 100644
--- a/fs/jbd2/recovery.c
+++ b/fs/jbd2/recovery.c
@@ -311,7 +311,7 @@ int jbd2_journal_skip_recovery(journal_t *journal)
 static inline unsigned long long read_tag_block(int tag_bytes, journal_block_tag_t *tag)
 {
         unsigned long long block = be32_to_cpu(tag->t_blocknr);
-        if (tag_bytes > JBD_TAG_SIZE32)
+        if (tag_bytes > JBD2_TAG_SIZE32)
                 block |= (u64)be32_to_cpu(tag->t_blocknr_high) << 32;
         return block;
 }
diff --git a/fs/jbd2/revoke.c b/fs/jbd2/revoke.c
index 01d88975e0c5..3595fd432d5b 100644
--- a/fs/jbd2/revoke.c
+++ b/fs/jbd2/revoke.c
@@ -352,7 +352,7 @@ int jbd2_journal_revoke(handle_t *handle, unsigned long long blocknr,
                 if (bh)
                         BUFFER_TRACE(bh, "found on hash");
         }
-#ifdef JBD_EXPENSIVE_CHECKING
+#ifdef JBD2_EXPENSIVE_CHECKING
         else {
                 struct buffer_head *bh2;
 
@@ -453,7 +453,7 @@ int jbd2_journal_cancel_revoke(handle_t *handle, struct journal_head *jh)
                 }
         }
 
-#ifdef JBD_EXPENSIVE_CHECKING
+#ifdef JBD2_EXPENSIVE_CHECKING
         /* There better not be one left behind by now! */
         record = find_revoke_record(journal, bh->b_blocknr);
         J_ASSERT_JH(jh, record == NULL);
diff --git a/include/linux/ext4_jbd2.h b/include/linux/ext4_jbd2.h
index d716e6392cf6..38c71d3c8dbf 100644
--- a/include/linux/ext4_jbd2.h
+++ b/include/linux/ext4_jbd2.h
@@ -12,8 +12,8 @@
  * Ext4-specific journaling extensions.
  */
 
-#ifndef _LINUX_EXT4_JBD_H
-#define _LINUX_EXT4_JBD_H
+#ifndef _LINUX_EXT4_JBD2_H
+#define _LINUX_EXT4_JBD2_H
 
 #include <linux/fs.h>
 #include <linux/jbd2.h>
@@ -228,4 +228,4 @@ static inline int ext4_should_writeback_data(struct inode *inode)
         return 0;
 }
 
-#endif  /* _LINUX_EXT4_JBD_H */
+#endif  /* _LINUX_EXT4_JBD2_H */
diff --git a/include/linux/jbd2.h b/include/linux/jbd2.h
index 5f8b876c6677..06ef11457051 100644
--- a/include/linux/jbd2.h
+++ b/include/linux/jbd2.h
@@ -13,8 +13,8 @@
  * filesystem journaling support.
  */
 
-#ifndef _LINUX_JBD_H
-#define _LINUX_JBD_H
+#ifndef _LINUX_JBD2_H
+#define _LINUX_JBD2_H
 
 /* Allow this file to be included directly into e2fsprogs */
 #ifndef __KERNEL__
@@ -37,26 +37,26 @@
 #define journal_oom_retry 1
 
 /*
- * Define JBD_PARANIOD_IOFAIL to cause a kernel BUG() if ext3 finds
+ * Define JBD2_PARANIOD_IOFAIL to cause a kernel BUG() if ext4 finds
  * certain classes of error which can occur due to failed IOs.  Under
- * normal use we want ext3 to continue after such errors, because
+ * normal use we want ext4 to continue after such errors, because
  * hardware _can_ fail, but for debugging purposes when running tests on
  * known-good hardware we may want to trap these errors.
  */
-#undef JBD_PARANOID_IOFAIL
+#undef JBD2_PARANOID_IOFAIL
 
 /*
  * The default maximum commit age, in seconds.
  */
-#define JBD_DEFAULT_MAX_COMMIT_AGE 5
+#define JBD2_DEFAULT_MAX_COMMIT_AGE 5
 
 #ifdef CONFIG_JBD2_DEBUG
 /*
- * Define JBD_EXPENSIVE_CHECKING to enable more expensive internal
+ * Define JBD2_EXPENSIVE_CHECKING to enable more expensive internal
  * consistency checks.  By default we don't do this unless
  * CONFIG_JBD2_DEBUG is on.
  */
-#define JBD_EXPENSIVE_CHECKING
+#define JBD2_EXPENSIVE_CHECKING
 extern u8 jbd2_journal_enable_debug;
 
 #define jbd_debug(n, f, a...)                                           \
@@ -163,8 +163,8 @@ typedef struct journal_block_tag_s
         __be32          t_blocknr_high; /* most-significant high 32bits. */
 } journal_block_tag_t;
 
-#define JBD_TAG_SIZE32 (offsetof(journal_block_tag_t, t_blocknr_high))
-#define JBD_TAG_SIZE64 (sizeof(journal_block_tag_t))
+#define JBD2_TAG_SIZE32 (offsetof(journal_block_tag_t, t_blocknr_high))
+#define JBD2_TAG_SIZE64 (sizeof(journal_block_tag_t))
 
 /*
  * The revoke descriptor: used on disk to describe a series of blocks to
@@ -256,8 +256,8 @@ typedef struct journal_superblock_s
 #include <linux/fs.h>
 #include <linux/sched.h>
 
-#define JBD_ASSERTIONS
-#ifdef JBD_ASSERTIONS
+#define JBD2_ASSERTIONS
+#ifdef JBD2_ASSERTIONS
 #define J_ASSERT(assert)                                                \
 do {                                                                    \
         if (!(assert)) {                                                \
@@ -284,9 +284,9 @@ void buffer_assertion_failure(struct buffer_head *bh);
 
 #else
 #define J_ASSERT(assert)        do { } while (0)
-#endif          /* JBD_ASSERTIONS */
+#endif          /* JBD2_ASSERTIONS */
 
-#if defined(JBD_PARANOID_IOFAIL)
+#if defined(JBD2_PARANOID_IOFAIL)
 #define J_EXPECT(expr, why...)          J_ASSERT(expr)
 #define J_EXPECT_BH(bh, expr, why...)   J_ASSERT_BH(bh, expr)
 #define J_EXPECT_JH(jh, expr, why...)   J_ASSERT_JH(jh, expr)
@@ -1104,4 +1104,4 @@ extern int jbd_blocks_per_page(struct inode *inode);
 
 #endif  /* __KERNEL__ */
 
-#endif  /* _LINUX_JBD_H */
+#endif  /* _LINUX_JBD2_H */
diff --git a/include/linux/poison.h b/include/linux/poison.h
index d93c300a3449..a9c31be7052c 100644
--- a/include/linux/poison.h
+++ b/include/linux/poison.h
@@ -36,7 +36,8 @@
  */
 
 /********** fs/jbd/journal.c **********/
-#define JBD_POISON_FREE 0x5b
+#define JBD_POISON_FREE         0x5b
+#define JBD2_POISON_FREE        0x5c
 
 /********** drivers/base/dmapool.c **********/
 #define POOL_POISON_FREED       0xa7    /* !inuse */