Fix up error messages printed when the transaction pointers in a journal head are inconsistent. This improves the error messages which are printed when running xfstests generic/068 in data=journal mode. See the bug report at: https://bugzilla.kernel.org/show_bug.cgi?id=60786 Signed-off-by: "Theodore Ts'o" <tytso@xxxxxxx> --- fs/ext4/ext4_jbd2.c | 10 ++++++++++ fs/jbd2/transaction.c | 33 ++++++++++++++------------------- 2 files changed, 24 insertions(+), 19 deletions(-) diff --git a/fs/ext4/ext4_jbd2.c b/fs/ext4/ext4_jbd2.c index 3fe29de..c3fb607 100644 --- a/fs/ext4/ext4_jbd2.c +++ b/fs/ext4/ext4_jbd2.c @@ -259,6 +259,16 @@ int __ext4_handle_dirty_metadata(const char *where, unsigned int line, if (WARN_ON_ONCE(err)) { ext4_journal_abort_handle(where, line, __func__, bh, handle, err); + if (inode == NULL) { + pr_err("EXT4: jbd2_journal_dirty_metadata " + "failed: handle type %u started at " + "line %u, credits %u/%u, errcode %d", + handle->h_type, + handle->h_line_no, + handle->h_requested_credits, + handle->h_buffer_credits, err); + return err; + } ext4_error_inode(inode, where, line, bh->b_blocknr, "journal_dirty_metadata failed: " diff --git a/fs/jbd2/transaction.c b/fs/jbd2/transaction.c index d999b1f..38cfcf5 100644 --- a/fs/jbd2/transaction.c +++ b/fs/jbd2/transaction.c @@ -1313,7 +1313,7 @@ int jbd2_journal_dirty_metadata(handle_t *handle, struct buffer_head *bh) journal->j_running_transaction)) { printk(KERN_ERR "JBD2: %s: " "jh->b_transaction (%llu, %p, %u) != " - "journal->j_running_transaction (%p, %u)", + "journal->j_running_transaction (%p, %u)\n", journal->j_devname, (unsigned long long) bh->b_blocknr, jh->b_transaction, @@ -1336,30 +1336,25 @@ int jbd2_journal_dirty_metadata(handle_t *handle, struct buffer_head *bh) */ if (jh->b_transaction != transaction) { JBUFFER_TRACE(jh, "already on other transaction"); - if (unlikely(jh->b_transaction != - journal->j_committing_transaction)) { - printk(KERN_ERR "JBD2: %s: " - "jh->b_transaction (%llu, %p, %u) != " - "journal->j_committing_transaction (%p, %u)", + if (unlikely(((jh->b_transaction != + journal->j_committing_transaction)) || + (jh->b_next_transaction != transaction))) { + printk(KERN_ERR "jbd2_journal_dirty_metadata: %s: " + "bad jh for block %llu: " + "transaction (%p, %u), " + "jh->b_transaction (%p, %u), " + "jh->b_next_transaction (%p, %u), jlist %u\n", journal->j_devname, (unsigned long long) bh->b_blocknr, + transaction, transaction->t_tid, jh->b_transaction, - jh->b_transaction ? jh->b_transaction->t_tid : 0, - journal->j_committing_transaction, - journal->j_committing_transaction ? - journal->j_committing_transaction->t_tid : 0); - ret = -EINVAL; - } - if (unlikely(jh->b_next_transaction != transaction)) { - printk(KERN_ERR "JBD2: %s: " - "jh->b_next_transaction (%llu, %p, %u) != " - "transaction (%p, %u)", - journal->j_devname, - (unsigned long long) bh->b_blocknr, + jh->b_transaction ? + jh->b_transaction->t_tid : 0, jh->b_next_transaction, jh->b_next_transaction ? jh->b_next_transaction->t_tid : 0, - transaction, transaction->t_tid); + jh->b_jlist); + WARN_ON(1); ret = -EINVAL; } /* And this case is illegal: we can't reuse another -- 1.9.0 -- To unsubscribe from this list: send the line "unsubscribe linux-ext4" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
