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-rw-r--r--fs/ext4/ext4_jbd2.c8
-rw-r--r--fs/ext4/extents.c10
-rw-r--r--fs/jbd2/transaction.c58
3 files changed, 64 insertions, 12 deletions
diff --git a/fs/ext4/ext4_jbd2.c b/fs/ext4/ext4_jbd2.c
index f5240aa1560..aca17901758 100644
--- a/fs/ext4/ext4_jbd2.c
+++ b/fs/ext4/ext4_jbd2.c
@@ -109,9 +109,11 @@ int __ext4_handle_dirty_metadata(const char *where, unsigned int line,
if (ext4_handle_valid(handle)) {
err = jbd2_journal_dirty_metadata(handle, bh);
- if (err)
- ext4_journal_abort_handle(where, line, __func__,
- bh, handle, err);
+ if (err) {
+ /* Errors can only happen if there is a bug */
+ handle->h_err = err;
+ __ext4_journal_stop(where, line, handle);
+ }
} else {
if (inode)
mark_buffer_dirty_inode(bh, inode);
diff --git a/fs/ext4/extents.c b/fs/ext4/extents.c
index 9124cd24e09..2c5216a8d03 100644
--- a/fs/ext4/extents.c
+++ b/fs/ext4/extents.c
@@ -96,13 +96,17 @@ static int ext4_ext_get_access(handle_t *handle, struct inode *inode,
* - ENOMEM
* - EIO
*/
-static int ext4_ext_dirty(handle_t *handle, struct inode *inode,
- struct ext4_ext_path *path)
+#define ext4_ext_dirty(handle, inode, path) \
+ __ext4_ext_dirty(__func__, __LINE__, (handle), (inode), (path))
+static int __ext4_ext_dirty(const char *where, unsigned int line,
+ handle_t *handle, struct inode *inode,
+ struct ext4_ext_path *path)
{
int err;
if (path->p_bh) {
/* path points to block */
- err = ext4_handle_dirty_metadata(handle, inode, path->p_bh);
+ err = __ext4_handle_dirty_metadata(where, line, handle,
+ inode, path->p_bh);
} else {
/* path points to leaf/index in inode body */
err = ext4_mark_inode_dirty(handle, inode);
diff --git a/fs/jbd2/transaction.c b/fs/jbd2/transaction.c
index 2d7109414cd..cb56fe9aaab 100644
--- a/fs/jbd2/transaction.c
+++ b/fs/jbd2/transaction.c
@@ -1049,6 +1049,10 @@ void jbd2_buffer_abort_trigger(struct journal_head *jh,
* mark dirty metadata which needs to be journaled as part of the current
* transaction.
*
+ * The buffer must have previously had jbd2_journal_get_write_access()
+ * called so that it has a valid journal_head attached to the buffer
+ * head.
+ *
* The buffer is placed on the transaction's metadata list and is marked
* as belonging to the transaction.
*
@@ -1065,11 +1069,16 @@ int jbd2_journal_dirty_metadata(handle_t *handle, struct buffer_head *bh)
transaction_t *transaction = handle->h_transaction;
journal_t *journal = transaction->t_journal;
struct journal_head *jh = bh2jh(bh);
+ int ret = 0;
jbd_debug(5, "journal_head %p\n", jh);
JBUFFER_TRACE(jh, "entry");
if (is_handle_aborted(handle))
goto out;
+ if (!buffer_jbd(bh)) {
+ ret = -EUCLEAN;
+ goto out;
+ }
jbd_lock_bh_state(bh);
@@ -1093,8 +1102,20 @@ int jbd2_journal_dirty_metadata(handle_t *handle, struct buffer_head *bh)
*/
if (jh->b_transaction == transaction && jh->b_jlist == BJ_Metadata) {
JBUFFER_TRACE(jh, "fastpath");
- J_ASSERT_JH(jh, jh->b_transaction ==
- journal->j_running_transaction);
+ if (unlikely(jh->b_transaction !=
+ journal->j_running_transaction)) {
+ printk(KERN_EMERG "JBD: %s: "
+ "jh->b_transaction (%llu, %p, %u) != "
+ "journal->j_running_transaction (%p, %u)",
+ journal->j_devname,
+ (unsigned long long) bh->b_blocknr,
+ jh->b_transaction,
+ jh->b_transaction ? jh->b_transaction->t_tid : 0,
+ journal->j_running_transaction,
+ journal->j_running_transaction ?
+ journal->j_running_transaction->t_tid : 0);
+ ret = -EINVAL;
+ }
goto out_unlock_bh;
}
@@ -1108,9 +1129,32 @@ int jbd2_journal_dirty_metadata(handle_t *handle, struct buffer_head *bh)
*/
if (jh->b_transaction != transaction) {
JBUFFER_TRACE(jh, "already on other transaction");
- J_ASSERT_JH(jh, jh->b_transaction ==
- journal->j_committing_transaction);
- J_ASSERT_JH(jh, jh->b_next_transaction == transaction);
+ if (unlikely(jh->b_transaction !=
+ journal->j_committing_transaction)) {
+ printk(KERN_EMERG "JBD: %s: "
+ "jh->b_transaction (%llu, %p, %u) != "
+ "journal->j_committing_transaction (%p, %u)",
+ journal->j_devname,
+ (unsigned long long) bh->b_blocknr,
+ 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_EMERG "JBD: %s: "
+ "jh->b_next_transaction (%llu, %p, %u) != "
+ "transaction (%p, %u)",
+ journal->j_devname,
+ (unsigned long long) bh->b_blocknr,
+ jh->b_next_transaction,
+ jh->b_next_transaction ?
+ jh->b_next_transaction->t_tid : 0,
+ transaction, transaction->t_tid);
+ ret = -EINVAL;
+ }
/* And this case is illegal: we can't reuse another
* transaction's data buffer, ever. */
goto out_unlock_bh;
@@ -1127,7 +1171,9 @@ out_unlock_bh:
jbd_unlock_bh_state(bh);
out:
JBUFFER_TRACE(jh, "exit");
- return 0;
+ if (ret)
+ __WARN(); /* All errors are bugs, so dump the stack */
+ return ret;
}
/*