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Date: Tue, 1 Nov 2011 10:05:50 +0800
From: Eryu Guan <guaneryu@...il.com>
To: linux-ext4@...r.kernel.org
Cc: Eryu Guan <guaneryu@...il.com>, "Theodore Ts'o" <tytso@....edu>
Subject: [PATCH 2/2] jbd2: Unify log messages in jbd2 code
Some jbd2 code prints out kernel messages with "JBD2: " prefix, at the
same time other jbd2 code prints with "JBD: " prefix. Unify the prefix
to "JBD2: ".
Cc: "Theodore Ts'o" <tytso@....edu>
Signed-off-by: Eryu Guan <guaneryu@...il.com>
---
fs/jbd2/commit.c | 26 +++++++++++++-------------
fs/jbd2/journal.c | 36 ++++++++++++++++++------------------
fs/jbd2/recovery.c | 28 ++++++++++++++--------------
fs/jbd2/transaction.c | 4 ++--
4 files changed, 47 insertions(+), 47 deletions(-)
diff --git a/fs/jbd2/commit.c b/fs/jbd2/commit.c
index eef6979..68d704d 100644
--- a/fs/jbd2/commit.c
+++ b/fs/jbd2/commit.c
@@ -352,7 +352,7 @@ void jbd2_journal_commit_transaction(journal_t *journal)
J_ASSERT(commit_transaction->t_state == T_RUNNING);
trace_jbd2_start_commit(journal, commit_transaction);
- jbd_debug(1, "JBD: starting commit of transaction %d\n",
+ jbd_debug(1, "JBD2: starting commit of transaction %d\n",
commit_transaction->t_tid);
write_lock(&journal->j_state_lock);
@@ -427,7 +427,7 @@ void jbd2_journal_commit_transaction(journal_t *journal)
__jbd2_journal_clean_checkpoint_list(journal);
spin_unlock(&journal->j_list_lock);
- jbd_debug (3, "JBD: commit phase 1\n");
+ jbd_debug(3, "JBD2: commit phase 1\n");
/*
* Switch to a new revoke table.
@@ -447,7 +447,7 @@ void jbd2_journal_commit_transaction(journal_t *journal)
wake_up(&journal->j_wait_transaction_locked);
write_unlock(&journal->j_state_lock);
- jbd_debug (3, "JBD: commit phase 2\n");
+ jbd_debug(3, "JBD2: commit phase 2\n");
/*
* Now start flushing things to disk, in the order they appear
@@ -462,7 +462,7 @@ void jbd2_journal_commit_transaction(journal_t *journal)
WRITE_SYNC);
blk_finish_plug(&plug);
- jbd_debug(3, "JBD: commit phase 2\n");
+ jbd_debug(3, "JBD2: commit phase 2\n");
/*
* Way to go: we have now written out all of the data for a
@@ -522,7 +522,7 @@ void jbd2_journal_commit_transaction(journal_t *journal)
J_ASSERT (bufs == 0);
- jbd_debug(4, "JBD: get descriptor\n");
+ jbd_debug(4, "JBD2: get descriptor\n");
descriptor = jbd2_journal_get_descriptor_buffer(journal);
if (!descriptor) {
@@ -531,7 +531,7 @@ void jbd2_journal_commit_transaction(journal_t *journal)
}
bh = jh2bh(descriptor);
- jbd_debug(4, "JBD: got buffer %llu (%p)\n",
+ jbd_debug(4, "JBD2: got buffer %llu (%p)\n",
(unsigned long long)bh->b_blocknr, bh->b_data);
header = (journal_header_t *)&bh->b_data[0];
header->h_magic = cpu_to_be32(JBD2_MAGIC_NUMBER);
@@ -625,7 +625,7 @@ void jbd2_journal_commit_transaction(journal_t *journal)
commit_transaction->t_buffers == NULL ||
space_left < tag_bytes + 16) {
- jbd_debug(4, "JBD: Submit %d IOs\n", bufs);
+ jbd_debug(4, "JBD2: Submit %d IOs\n", bufs);
/* Write an end-of-descriptor marker before
submitting the IOs. "tag" still points to
@@ -707,7 +707,7 @@ start_journal_io:
so we incur less scheduling load.
*/
- jbd_debug(3, "JBD: commit phase 3\n");
+ jbd_debug(3, "JBD2: commit phase 3\n");
/*
* akpm: these are BJ_IO, and j_list_lock is not needed.
@@ -771,7 +771,7 @@ wait_for_iobuf:
J_ASSERT (commit_transaction->t_shadow_list == NULL);
- jbd_debug(3, "JBD: commit phase 4\n");
+ jbd_debug(3, "JBD2: commit phase 4\n");
/* Here we wait for the revoke record and descriptor record buffers */
wait_for_ctlbuf:
@@ -801,7 +801,7 @@ wait_for_iobuf:
if (err)
jbd2_journal_abort(journal, err);
- jbd_debug(3, "JBD: commit phase 5\n");
+ jbd_debug(3, "JBD2: commit phase 5\n");
write_lock(&journal->j_state_lock);
J_ASSERT(commit_transaction->t_state == T_COMMIT_DFLUSH);
commit_transaction->t_state = T_COMMIT_JFLUSH;
@@ -830,7 +830,7 @@ wait_for_iobuf:
transaction can be removed from any checkpoint list it was on
before. */
- jbd_debug(3, "JBD: commit phase 6\n");
+ jbd_debug(3, "JBD2: commit phase 6\n");
J_ASSERT(list_empty(&commit_transaction->t_inode_list));
J_ASSERT(commit_transaction->t_buffers == NULL);
@@ -964,7 +964,7 @@ restart_loop:
/* Done with this transaction! */
- jbd_debug(3, "JBD: commit phase 7\n");
+ jbd_debug(3, "JBD2: commit phase 7\n");
J_ASSERT(commit_transaction->t_state == T_COMMIT_JFLUSH);
@@ -1039,7 +1039,7 @@ restart_loop:
journal->j_commit_callback(journal, commit_transaction);
trace_jbd2_end_commit(journal, commit_transaction);
- jbd_debug(1, "JBD: commit %d complete, head %d\n",
+ jbd_debug(1, "JBD2: commit %d complete, head %d\n",
journal->j_commit_sequence, journal->j_tail_sequence);
if (to_free)
kfree(commit_transaction);
diff --git a/fs/jbd2/journal.c b/fs/jbd2/journal.c
index e2d0e13..ed62a64 100644
--- a/fs/jbd2/journal.c
+++ b/fs/jbd2/journal.c
@@ -491,7 +491,7 @@ int __jbd2_log_start_commit(journal_t *journal, tid_t target)
*/
journal->j_commit_request = target;
- jbd_debug(1, "JBD: requesting commit %d/%d\n",
+ jbd_debug(1, "JBD2: requesting commit %d/%d\n",
journal->j_commit_request,
journal->j_commit_sequence);
wake_up(&journal->j_wait_commit);
@@ -500,7 +500,7 @@ int __jbd2_log_start_commit(journal_t *journal, tid_t target)
/* This should never happen, but if it does, preserve
the evidence before kjournald goes into a loop and
increments j_commit_sequence beyond all recognition. */
- WARN_ONCE(1, "jbd: bad log_start_commit: %u %u %u %u\n",
+ WARN_ONCE(1, "JBD2: bad log_start_commit: %u %u %u %u\n",
journal->j_commit_request,
journal->j_commit_sequence,
target, journal->j_running_transaction ?
@@ -645,7 +645,7 @@ int jbd2_log_wait_commit(journal_t *journal, tid_t tid)
}
#endif
while (tid_gt(tid, journal->j_commit_sequence)) {
- jbd_debug(1, "JBD: want %d, j_commit_sequence=%d\n",
+ jbd_debug(1, "JBD2: want %d, j_commit_sequence=%d\n",
tid, journal->j_commit_sequence);
wake_up(&journal->j_wait_commit);
read_unlock(&journal->j_state_lock);
@@ -1093,7 +1093,7 @@ static int journal_reset(journal_t *journal)
first = be32_to_cpu(sb->s_first);
last = be32_to_cpu(sb->s_maxlen);
if (first + JBD2_MIN_JOURNAL_BLOCKS > last + 1) {
- printk(KERN_ERR "JBD: Journal too short (blocks %llu-%llu).\n",
+ printk(KERN_ERR "JBD2: Journal too short (blocks %llu-%llu).\n",
first, last);
journal_fail_superblock(journal);
return -EINVAL;
@@ -1139,7 +1139,7 @@ void jbd2_journal_update_superblock(journal_t *journal, int wait)
*/
if (sb->s_start == 0 && journal->j_tail_sequence ==
journal->j_transaction_sequence) {
- jbd_debug(1,"JBD: Skipping superblock update on recovered sb "
+ jbd_debug(1, "JBD2: Skipping superblock update on recovered sb "
"(start %ld, seq %d, errno %d)\n",
journal->j_tail, journal->j_tail_sequence,
journal->j_errno);
@@ -1163,7 +1163,7 @@ void jbd2_journal_update_superblock(journal_t *journal, int wait)
}
read_lock(&journal->j_state_lock);
- jbd_debug(1,"JBD: updating superblock (start %ld, seq %d, errno %d)\n",
+ jbd_debug(1, "JBD2: updating superblock (start %ld, seq %d, errno %d)\n",
journal->j_tail, journal->j_tail_sequence, journal->j_errno);
sb->s_sequence = cpu_to_be32(journal->j_tail_sequence);
@@ -1216,8 +1216,8 @@ static int journal_get_superblock(journal_t *journal)
ll_rw_block(READ, 1, &bh);
wait_on_buffer(bh);
if (!buffer_uptodate(bh)) {
- printk (KERN_ERR
- "JBD: IO error reading journal superblock\n");
+ printk(KERN_ERR
+ "JBD2: IO error reading journal superblock\n");
goto out;
}
}
@@ -1228,7 +1228,7 @@ static int journal_get_superblock(journal_t *journal)
if (sb->s_header.h_magic != cpu_to_be32(JBD2_MAGIC_NUMBER) ||
sb->s_blocksize != cpu_to_be32(journal->j_blocksize)) {
- printk(KERN_WARNING "JBD: no valid journal superblock found\n");
+ printk(KERN_WARNING "JBD2: no valid journal superblock found\n");
goto out;
}
@@ -1240,14 +1240,14 @@ static int journal_get_superblock(journal_t *journal)
journal->j_format_version = 2;
break;
default:
- printk(KERN_WARNING "JBD: unrecognised superblock format ID\n");
+ printk(KERN_WARNING "JBD2: unrecognised superblock format ID\n");
goto out;
}
if (be32_to_cpu(sb->s_maxlen) < journal->j_maxlen)
journal->j_maxlen = be32_to_cpu(sb->s_maxlen);
else if (be32_to_cpu(sb->s_maxlen) > journal->j_maxlen) {
- printk (KERN_WARNING "JBD: journal file too short\n");
+ printk(KERN_WARNING "JBD2: journal file too short\n");
goto out;
}
@@ -1318,8 +1318,8 @@ int jbd2_journal_load(journal_t *journal)
~cpu_to_be32(JBD2_KNOWN_ROCOMPAT_FEATURES)) ||
(sb->s_feature_incompat &
~cpu_to_be32(JBD2_KNOWN_INCOMPAT_FEATURES))) {
- printk (KERN_WARNING
- "JBD: Unrecognised features on journal\n");
+ printk(KERN_WARNING
+ "JBD2: Unrecognised features on journal\n");
return -EINVAL;
}
}
@@ -1354,7 +1354,7 @@ int jbd2_journal_load(journal_t *journal)
return 0;
recovery_error:
- printk (KERN_WARNING "JBD: recovery failed\n");
+ printk(KERN_WARNING "JBD2: recovery failed\n");
return -EIO;
}
@@ -1585,7 +1585,7 @@ static int journal_convert_superblock_v1(journal_t *journal,
struct buffer_head *bh;
printk(KERN_WARNING
- "JBD: Converting superblock from version 1 to 2.\n");
+ "JBD2: Converting superblock from version 1 to 2.\n");
/* Pre-initialise new fields to zero */
offset = ((char *) &(sb->s_feature_compat)) - ((char *) sb);
@@ -1702,7 +1702,7 @@ int jbd2_journal_wipe(journal_t *journal, int write)
if (!journal->j_tail)
goto no_recovery;
- printk (KERN_WARNING "JBD: %s recovery information on journal\n",
+ printk(KERN_WARNING "JBD2: %s recovery information on journal\n",
write ? "Clearing" : "Ignoring");
err = jbd2_journal_skip_recovery(journal);
@@ -2028,7 +2028,7 @@ static int journal_init_jbd2_journal_head_cache(void)
retval = 0;
if (!jbd2_journal_head_cache) {
retval = -ENOMEM;
- printk(KERN_EMERG "JBD: no memory for journal_head cache\n");
+ printk(KERN_EMERG "JBD2: no memory for journal_head cache\n");
}
return retval;
}
@@ -2391,7 +2391,7 @@ static void __exit journal_exit(void)
#ifdef CONFIG_JBD2_DEBUG
int n = atomic_read(&nr_journal_heads);
if (n)
- printk(KERN_EMERG "JBD: leaked %d journal_heads!\n", n);
+ printk(KERN_EMERG "JBD2: leaked %d journal_heads!\n", n);
#endif
jbd2_remove_debugfs_entry();
jbd2_remove_jbd_stats_proc_entry();
diff --git a/fs/jbd2/recovery.c b/fs/jbd2/recovery.c
index 1cad869..da6d7ba 100644
--- a/fs/jbd2/recovery.c
+++ b/fs/jbd2/recovery.c
@@ -89,7 +89,7 @@ static int do_readahead(journal_t *journal, unsigned int start)
err = jbd2_journal_bmap(journal, next, &blocknr);
if (err) {
- printk (KERN_ERR "JBD: bad block at offset %u\n",
+ printk(KERN_ERR "JBD2: bad block at offset %u\n",
next);
goto failed;
}
@@ -138,14 +138,14 @@ static int jread(struct buffer_head **bhp, journal_t *journal,
*bhp = NULL;
if (offset >= journal->j_maxlen) {
- printk(KERN_ERR "JBD: corrupted journal superblock\n");
+ printk(KERN_ERR "JBD2: corrupted journal superblock\n");
return -EIO;
}
err = jbd2_journal_bmap(journal, offset, &blocknr);
if (err) {
- printk (KERN_ERR "JBD: bad block at offset %u\n",
+ printk(KERN_ERR "JBD2: bad block at offset %u\n",
offset);
return err;
}
@@ -163,7 +163,7 @@ static int jread(struct buffer_head **bhp, journal_t *journal,
}
if (!buffer_uptodate(bh)) {
- printk (KERN_ERR "JBD: Failed to read block at offset %u\n",
+ printk(KERN_ERR "JBD2: Failed to read block at offset %u\n",
offset);
brelse(bh);
return -EIO;
@@ -251,10 +251,10 @@ int jbd2_journal_recover(journal_t *journal)
if (!err)
err = do_one_pass(journal, &info, PASS_REPLAY);
- jbd_debug(1, "JBD: recovery, exit status %d, "
+ jbd_debug(1, "JBD2: recovery, exit status %d, "
"recovered transactions %u to %u\n",
err, info.start_transaction, info.end_transaction);
- jbd_debug(1, "JBD: Replayed %d and revoked %d/%d blocks\n",
+ jbd_debug(1, "JBD2: Replayed %d and revoked %d/%d blocks\n",
info.nr_replays, info.nr_revoke_hits, info.nr_revokes);
/* Restart the log at the next transaction ID, thus invalidating
@@ -293,14 +293,14 @@ int jbd2_journal_skip_recovery(journal_t *journal)
err = do_one_pass(journal, &info, PASS_SCAN);
if (err) {
- printk(KERN_ERR "JBD: error %d scanning journal\n", err);
+ printk(KERN_ERR "JBD2: error %d scanning journal\n", err);
++journal->j_transaction_sequence;
} else {
#ifdef CONFIG_JBD2_DEBUG
int dropped = info.end_transaction -
be32_to_cpu(journal->j_superblock->s_sequence);
jbd_debug(1,
- "JBD: ignoring %d transaction%s from the journal.\n",
+ "JBD2: ignoring %d transaction%s from the journal.\n",
dropped, (dropped == 1) ? "" : "s");
#endif
journal->j_transaction_sequence = ++info.end_transaction;
@@ -338,7 +338,7 @@ static int calc_chksums(journal_t *journal, struct buffer_head *bh,
wrap(journal, *next_log_block);
err = jread(&obh, journal, io_block);
if (err) {
- printk(KERN_ERR "JBD: IO error %d recovering block "
+ printk(KERN_ERR "JBD2: IO error %d recovering block "
"%lu in log\n", err, io_block);
return 1;
} else {
@@ -411,7 +411,7 @@ static int do_one_pass(journal_t *journal,
* either the next descriptor block or the final commit
* record. */
- jbd_debug(3, "JBD: checking block %ld\n", next_log_block);
+ jbd_debug(3, "JBD2: checking block %ld\n", next_log_block);
err = jread(&bh, journal, next_log_block);
if (err)
goto failed;
@@ -491,8 +491,8 @@ static int do_one_pass(journal_t *journal,
/* Recover what we can, but
* report failure at the end. */
success = err;
- printk (KERN_ERR
- "JBD: IO error %d recovering "
+ printk(KERN_ERR
+ "JBD2: IO error %d recovering "
"block %ld in log\n",
err, io_block);
} else {
@@ -520,7 +520,7 @@ static int do_one_pass(journal_t *journal,
journal->j_blocksize);
if (nbh == NULL) {
printk(KERN_ERR
- "JBD: Out of memory "
+ "JBD2: Out of memory "
"during recovery.\n");
err = -ENOMEM;
brelse(bh);
@@ -689,7 +689,7 @@ static int do_one_pass(journal_t *journal,
/* It's really bad news if different passes end up at
* different places (but possible due to IO errors). */
if (info->end_transaction != next_commit_ID) {
- printk (KERN_ERR "JBD: recovery pass %d ended at "
+ printk(KERN_ERR "JBD2: recovery pass %d ended at "
"transaction %u, expected %u\n",
pass, next_commit_ID, info->end_transaction);
if (!success)
diff --git a/fs/jbd2/transaction.c b/fs/jbd2/transaction.c
index 2d71094..80c7033 100644
--- a/fs/jbd2/transaction.c
+++ b/fs/jbd2/transaction.c
@@ -124,7 +124,7 @@ static int start_this_handle(journal_t *journal, handle_t *handle,
unsigned long ts = jiffies;
if (nblocks > journal->j_max_transaction_buffers) {
- printk(KERN_ERR "JBD: %s wants too many credits (%d > %d)\n",
+ printk(KERN_ERR "JBD2: %s wants too many credits (%d > %d)\n",
current->comm, nblocks,
journal->j_max_transaction_buffers);
return -ENOSPC;
@@ -563,7 +563,7 @@ static void warn_dirty_buffer(struct buffer_head *bh)
char b[BDEVNAME_SIZE];
printk(KERN_WARNING
- "JBD: Spotted dirty metadata buffer (dev = %s, blocknr = %llu). "
+ "JBD2: Spotted dirty metadata buffer (dev = %s, blocknr = %llu). "
"There's a risk of filesystem corruption in case of system "
"crash.\n",
bdevname(bh->b_bdev, b), (unsigned long long)bh->b_blocknr);
--
1.7.7.1
--
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