[PATCH] jbd2: enable building of jbd2 and have ext4 use it rather than jbd
Reworked from a patch by Mingming Cao and Randy Dunlap
Signed-off-By: Randy Dunlap <rdunlap@xenotime.net>
Signed-off-by: Mingming Cao <cmm@us.ibm.com>
Signed-off-by: Dave Kleikamp <shaggy@austin.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
diff --git a/fs/ext4/super.c b/fs/ext4/super.c
index 9e32a2a..f131bb6 100644
--- a/fs/ext4/super.c
+++ b/fs/ext4/super.c
@@ -20,9 +20,9 @@
#include <linux/string.h>
#include <linux/fs.h>
#include <linux/time.h>
-#include <linux/jbd.h>
+#include <linux/jbd2.h>
#include <linux/ext4_fs.h>
-#include <linux/ext4_jbd.h>
+#include <linux/ext4_jbd2.h>
#include <linux/slab.h>
#include <linux/init.h>
#include <linux/blkdev.h>
@@ -63,7 +63,7 @@
static void ext4_write_super_lockfs(struct super_block *sb);
/*
- * Wrappers for journal_start/end.
+ * Wrappers for jbd2_journal_start/end.
*
* The only special thing we need to do here is to make sure that all
* journal_end calls result in the superblock being marked dirty, so
@@ -87,12 +87,12 @@
return ERR_PTR(-EROFS);
}
- return journal_start(journal, nblocks);
+ return jbd2_journal_start(journal, nblocks);
}
/*
* The only special thing we need to do here is to make sure that all
- * journal_stop calls result in the superblock being marked dirty, so
+ * jbd2_journal_stop calls result in the superblock being marked dirty, so
* that sync() will call the filesystem's write_super callback if
* appropriate.
*/
@@ -104,7 +104,7 @@
sb = handle->h_transaction->t_journal->j_private;
err = handle->h_err;
- rc = journal_stop(handle);
+ rc = jbd2_journal_stop(handle);
if (!err)
err = rc;
@@ -131,7 +131,7 @@
printk(KERN_ERR "%s: aborting transaction: %s in %s\n",
caller, errstr, err_fn);
- journal_abort_handle(handle);
+ jbd2_journal_abort_handle(handle);
}
/* Deal with the reporting of failure conditions on a filesystem such as
@@ -144,7 +144,7 @@
* be aborted, we can't rely on the current, or future, transactions to
* write out the superblock safely.
*
- * We'll just use the journal_abort() error code to record an error in
+ * We'll just use the jbd2_journal_abort() error code to record an error in
* the journal instead. On recovery, the journal will compain about
* that error until we've noted it down and cleared it.
*/
@@ -164,7 +164,7 @@
EXT4_SB(sb)->s_mount_opt |= EXT4_MOUNT_ABORT;
if (journal)
- journal_abort(journal, -EIO);
+ jbd2_journal_abort(journal, -EIO);
}
if (test_opt (sb, ERRORS_RO)) {
printk (KERN_CRIT "Remounting filesystem read-only\n");
@@ -203,7 +203,7 @@
errstr = "Out of memory";
break;
case -EROFS:
- if (!sb || EXT4_SB(sb)->s_journal->j_flags & JFS_ABORT)
+ if (!sb || EXT4_SB(sb)->s_journal->j_flags & JBD2_ABORT)
errstr = "Journal has aborted";
else
errstr = "Readonly filesystem";
@@ -279,7 +279,7 @@
EXT4_SB(sb)->s_mount_state |= EXT4_ERROR_FS;
sb->s_flags |= MS_RDONLY;
EXT4_SB(sb)->s_mount_opt |= EXT4_MOUNT_ABORT;
- journal_abort(EXT4_SB(sb)->s_journal, -EIO);
+ jbd2_journal_abort(EXT4_SB(sb)->s_journal, -EIO);
}
void ext4_warning (struct super_block * sb, const char * function,
@@ -391,7 +391,7 @@
int i;
ext4_xattr_put_super(sb);
- journal_destroy(sbi->s_journal);
+ jbd2_journal_destroy(sbi->s_journal);
if (!(sb->s_flags & MS_RDONLY)) {
EXT4_CLEAR_INCOMPAT_FEATURE(sb, EXT4_FEATURE_INCOMPAT_RECOVER);
es->s_state = cpu_to_le16(sbi->s_mount_state);
@@ -1722,8 +1722,8 @@
/* No mode set, assume a default based on the journal
capabilities: ORDERED_DATA if the journal can
cope, else JOURNAL_DATA */
- if (journal_check_available_features
- (sbi->s_journal, 0, 0, JFS_FEATURE_INCOMPAT_REVOKE))
+ if (jbd2_journal_check_available_features
+ (sbi->s_journal, 0, 0, JBD2_FEATURE_INCOMPAT_REVOKE))
set_opt(sbi->s_mount_opt, ORDERED_DATA);
else
set_opt(sbi->s_mount_opt, JOURNAL_DATA);
@@ -1731,8 +1731,8 @@
case EXT4_MOUNT_ORDERED_DATA:
case EXT4_MOUNT_WRITEBACK_DATA:
- if (!journal_check_available_features
- (sbi->s_journal, 0, 0, JFS_FEATURE_INCOMPAT_REVOKE)) {
+ if (!jbd2_journal_check_available_features
+ (sbi->s_journal, 0, 0, JBD2_FEATURE_INCOMPAT_REVOKE)) {
printk(KERN_ERR "EXT4-fs: Journal does not support "
"requested data journaling mode\n");
goto failed_mount4;
@@ -1749,7 +1749,7 @@
}
}
/*
- * The journal_load will have done any necessary log recovery,
+ * The jbd2_journal_load will have done any necessary log recovery,
* so we can safely mount the rest of the filesystem now.
*/
@@ -1797,7 +1797,7 @@
goto failed_mount;
failed_mount4:
- journal_destroy(sbi->s_journal);
+ jbd2_journal_destroy(sbi->s_journal);
failed_mount3:
percpu_counter_destroy(&sbi->s_freeblocks_counter);
percpu_counter_destroy(&sbi->s_freeinodes_counter);
@@ -1837,9 +1837,9 @@
spin_lock(&journal->j_state_lock);
if (test_opt(sb, BARRIER))
- journal->j_flags |= JFS_BARRIER;
+ journal->j_flags |= JBD2_BARRIER;
else
- journal->j_flags &= ~JFS_BARRIER;
+ journal->j_flags &= ~JBD2_BARRIER;
spin_unlock(&journal->j_state_lock);
}
@@ -1873,7 +1873,7 @@
return NULL;
}
- journal = journal_init_inode(journal_inode);
+ journal = jbd2_journal_init_inode(journal_inode);
if (!journal) {
printk(KERN_ERR "EXT4-fs: Could not load journal inode\n");
iput(journal_inode);
@@ -1945,7 +1945,7 @@
start = sb_block + 1;
brelse(bh); /* we're done with the superblock */
- journal = journal_init_dev(bdev, sb->s_bdev,
+ journal = jbd2_journal_init_dev(bdev, sb->s_bdev,
start, len, blocksize);
if (!journal) {
printk(KERN_ERR "EXT4-fs: failed to create device journal\n");
@@ -1968,7 +1968,7 @@
ext4_init_journal_params(sb, journal);
return journal;
out_journal:
- journal_destroy(journal);
+ jbd2_journal_destroy(journal);
out_bdev:
ext4_blkdev_put(bdev);
return NULL;
@@ -2029,22 +2029,22 @@
}
if (!really_read_only && test_opt(sb, UPDATE_JOURNAL)) {
- err = journal_update_format(journal);
+ err = jbd2_journal_update_format(journal);
if (err) {
printk(KERN_ERR "EXT4-fs: error updating journal.\n");
- journal_destroy(journal);
+ jbd2_journal_destroy(journal);
return err;
}
}
if (!EXT4_HAS_INCOMPAT_FEATURE(sb, EXT4_FEATURE_INCOMPAT_RECOVER))
- err = journal_wipe(journal, !really_read_only);
+ err = jbd2_journal_wipe(journal, !really_read_only);
if (!err)
- err = journal_load(journal);
+ err = jbd2_journal_load(journal);
if (err) {
printk(KERN_ERR "EXT4-fs: error loading journal.\n");
- journal_destroy(journal);
+ jbd2_journal_destroy(journal);
return err;
}
@@ -2081,9 +2081,9 @@
printk(KERN_INFO "EXT4-fs: creating new journal on inode %u\n",
journal_inum);
- if (journal_create(journal)) {
+ if (jbd2_journal_create(journal)) {
printk(KERN_ERR "EXT4-fs: error creating journal.\n");
- journal_destroy(journal);
+ jbd2_journal_destroy(journal);
return -EIO;
}
@@ -2130,15 +2130,15 @@
{
journal_t *journal = EXT4_SB(sb)->s_journal;
- journal_lock_updates(journal);
- journal_flush(journal);
+ jbd2_journal_lock_updates(journal);
+ jbd2_journal_flush(journal);
if (EXT4_HAS_INCOMPAT_FEATURE(sb, EXT4_FEATURE_INCOMPAT_RECOVER) &&
sb->s_flags & MS_RDONLY) {
EXT4_CLEAR_INCOMPAT_FEATURE(sb, EXT4_FEATURE_INCOMPAT_RECOVER);
sb->s_dirt = 0;
ext4_commit_super(sb, es, 1);
}
- journal_unlock_updates(journal);
+ jbd2_journal_unlock_updates(journal);
}
/*
@@ -2160,7 +2160,7 @@
* journal by a prior ext4_error() or ext4_abort()
*/
- j_errno = journal_errno(journal);
+ j_errno = jbd2_journal_errno(journal);
if (j_errno) {
char nbuf[16];
@@ -2174,7 +2174,7 @@
es->s_state |= cpu_to_le16(EXT4_ERROR_FS);
ext4_commit_super (sb, es, 1);
- journal_clear_err(journal);
+ jbd2_journal_clear_err(journal);
}
}
@@ -2217,9 +2217,9 @@
tid_t target;
sb->s_dirt = 0;
- if (journal_start_commit(EXT4_SB(sb)->s_journal, &target)) {
+ if (jbd2_journal_start_commit(EXT4_SB(sb)->s_journal, &target)) {
if (wait)
- log_wait_commit(EXT4_SB(sb)->s_journal, target);
+ jbd2_log_wait_commit(EXT4_SB(sb)->s_journal, target);
}
return 0;
}
@@ -2236,8 +2236,8 @@
journal_t *journal = EXT4_SB(sb)->s_journal;
/* Now we set up the journal barrier. */
- journal_lock_updates(journal);
- journal_flush(journal);
+ jbd2_journal_lock_updates(journal);
+ jbd2_journal_flush(journal);
/* Journal blocked and flushed, clear needs_recovery flag. */
EXT4_CLEAR_INCOMPAT_FEATURE(sb, EXT4_FEATURE_INCOMPAT_RECOVER);
@@ -2257,7 +2257,7 @@
EXT4_SET_INCOMPAT_FEATURE(sb, EXT4_FEATURE_INCOMPAT_RECOVER);
ext4_commit_super(sb, EXT4_SB(sb)->s_es, 1);
unlock_super(sb);
- journal_unlock_updates(EXT4_SB(sb)->s_journal);
+ jbd2_journal_unlock_updates(EXT4_SB(sb)->s_journal);
}
}
@@ -2438,9 +2438,9 @@
* is locked for write. Otherwise the are possible deadlocks:
* Process 1 Process 2
* ext4_create() quota_sync()
- * journal_start() write_dquot()
+ * jbd2_journal_start() write_dquot()
* DQUOT_INIT() down(dqio_mutex)
- * down(dqio_mutex) journal_start()
+ * down(dqio_mutex) jbd2_journal_start()
*
*/