linux-ext4 - [PATCH] jbd2: Revise KERN

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Date:	Mon, 25 Nov 2013 23:59:17 +0100
From:	Jan Kara <jack@...e.cz>
To:	linux-ext4@...r.kernel.org
Cc:	Lubomir Rintel <lkundrak@...sk>, Ted Tso <tytso@....edu>,
	Jan Kara <jack@...e.cz>
Subject: [PATCH] jbd2: Revise KERN_EMERG error messages

Some of KERN_EMERG printk messages do not really deserve this log level
and the one in log_wait_commit() is even rather useless (the journal has
been previously aborted and *that* is where we should have been
complaining). So make some messages just KERN_ERR and remove the useless
message.

Signed-off-by: Jan Kara <jack@...e.cz>
---
 fs/jbd2/journal.c     |  8 +++-----
 fs/jbd2/transaction.c | 10 +++++-----
 2 files changed, 8 insertions(+), 10 deletions(-)

diff --git a/fs/jbd2/journal.c b/fs/jbd2/journal.c
index 52032647dd4a..f66faedce6f0 100644
--- a/fs/jbd2/journal.c
+++ b/fs/jbd2/journal.c
@@ -702,7 +702,7 @@ int jbd2_log_wait_commit(journal_t *journal, tid_t tid)
 	read_lock(&journal->j_state_lock);
 #ifdef CONFIG_JBD2_DEBUG
 	if (!tid_geq(journal->j_commit_request, tid)) {
-		printk(KERN_EMERG
+		printk(KERN_ERR
 		       "%s: error: j_commit_request=%d, tid=%d\n",
 		       __func__, journal->j_commit_request, tid);
 	}
@@ -718,10 +718,8 @@ int jbd2_log_wait_commit(journal_t *journal, tid_t tid)
 	}
 	read_unlock(&journal->j_state_lock);
 
-	if (unlikely(is_journal_aborted(journal))) {
-		printk(KERN_EMERG "journal commit I/O error\n");
+	if (unlikely(is_journal_aborted(journal)))
 		err = -EIO;
-	}
 	return err;
 }
 
@@ -2645,7 +2643,7 @@ static void __exit journal_exit(void)
 #ifdef CONFIG_JBD2_DEBUG
 	int n = atomic_read(&nr_journal_heads);
 	if (n)
-		printk(KERN_EMERG "JBD2: leaked %d journal_heads!\n", n);
+		printk(KERN_ERR "JBD2: leaked %d journal_heads!\n", n);
 #endif
 	jbd2_remove_jbd_stats_proc_entry();
 	jbd2_journal_destroy_caches();
diff --git a/fs/jbd2/transaction.c b/fs/jbd2/transaction.c
index 7aa9a32573bb..5b1b809da131 100644
--- a/fs/jbd2/transaction.c
+++ b/fs/jbd2/transaction.c
@@ -932,7 +932,7 @@ repeat:
 					jbd2_alloc(jh2bh(jh)->b_size,
 							 GFP_NOFS);
 				if (!frozen_buffer) {
-					printk(KERN_EMERG
+					printk(KERN_ERR
 					       "%s: OOM for frozen_buffer\n",
 					       __func__);
 					JBUFFER_TRACE(jh, "oom!");
@@ -1166,7 +1166,7 @@ repeat:
 	if (!jh->b_committed_data) {
 		committed_data = jbd2_alloc(jh2bh(jh)->b_size, GFP_NOFS);
 		if (!committed_data) {
-			printk(KERN_EMERG "%s: No memory for committed data\n",
+			printk(KERN_ERR "%s: No memory for committed data\n",
 				__func__);
 			err = -ENOMEM;
 			goto out;
@@ -1305,7 +1305,7 @@ int jbd2_journal_dirty_metadata(handle_t *handle, struct buffer_head *bh)
 		JBUFFER_TRACE(jh, "fastpath");
 		if (unlikely(jh->b_transaction !=
 			     journal->j_running_transaction)) {
-			printk(KERN_EMERG "JBD: %s: "
+			printk(KERN_ERR "JBD: %s: "
 			       "jh->b_transaction (%llu, %p, %u) != "
 			       "journal->j_running_transaction (%p, %u)",
 			       journal->j_devname,
@@ -1332,7 +1332,7 @@ int jbd2_journal_dirty_metadata(handle_t *handle, struct buffer_head *bh)
 		JBUFFER_TRACE(jh, "already on other transaction");
 		if (unlikely(jh->b_transaction !=
 			     journal->j_committing_transaction)) {
-			printk(KERN_EMERG "JBD: %s: "
+			printk(KERN_ERR "JBD: %s: "
 			       "jh->b_transaction (%llu, %p, %u) != "
 			       "journal->j_committing_transaction (%p, %u)",
 			       journal->j_devname,
@@ -1345,7 +1345,7 @@ int jbd2_journal_dirty_metadata(handle_t *handle, struct buffer_head *bh)
 			ret = -EINVAL;
 		}
 		if (unlikely(jh->b_next_transaction != transaction)) {
-			printk(KERN_EMERG "JBD: %s: "
+			printk(KERN_ERR "JBD: %s: "
 			       "jh->b_next_transaction (%llu, %p, %u) != "
 			       "transaction (%p, %u)",
 			       journal->j_devname,
-- 
1.8.1.4

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