Merge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4

* 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4:
  ext4: Add new "development flag" to the ext4 filesystem
  ext4: Don't panic in case of corrupt bitmap
  ext4: allocate struct ext4_allocation_context from a kmem cache
  JBD2:  Clear buffer_ordered flag for barried IO request on success
  ext4: Fix Direct I/O locking
  ext4: Fix circular locking dependency with migrate and rm.
  allow in-inode EAs on ext4 root inode
  ext4: Fix null bh pointer dereference in mballoc
  ext4: Don't set EXTENTS_FL flag for fast symlinks
  JBD2: Use the incompat macro for testing the incompat feature.
  jbd2: Fix reference counting on the journal commit block's buffer head
  [PATCH] jbd: Remove useless loop when writing commit record
  jbd2: Add error check to journal_wait_on_commit_record to avoid oops

1 files changed, 6 insertions, 4 deletions

diff --git a/fs/jbd2/commit.c b/fs/jbd2/commit.c
index 4f302d27927..a8173081f83 100644
--- a/fs/jbd2/commit.c
+++ b/fs/jbd2/commit.c
@@ -136,18 +136,20 @@ static int journal_submit_commit_record(journal_t *journal,
 
 	JBUFFER_TRACE(descriptor, "submit commit block");
 	lock_buffer(bh);
-
+	get_bh(bh);
 	set_buffer_dirty(bh);
 	set_buffer_uptodate(bh);
 	bh->b_end_io = journal_end_buffer_io_sync;
 
 	if (journal->j_flags & JBD2_BARRIER &&
-		!JBD2_HAS_COMPAT_FEATURE(journal,
+		!JBD2_HAS_INCOMPAT_FEATURE(journal,
 					 JBD2_FEATURE_INCOMPAT_ASYNC_COMMIT)) {
 		set_buffer_ordered(bh);
 		barrier_done = 1;
 	}
 	ret = submit_bh(WRITE, bh);
+	if (barrier_done)
+		clear_buffer_ordered(bh);
 
 	/* is it possible for another commit to fail at roughly
 	 * the same time as this one?  If so, we don't want to
@@ -166,7 +168,6 @@ static int journal_submit_commit_record(journal_t *journal,
 		spin_unlock(&journal->j_state_lock);
 
 		/* And try again, without the barrier */
-		clear_buffer_ordered(bh);
 		set_buffer_uptodate(bh);
 		set_buffer_dirty(bh);
 		ret = submit_bh(WRITE, bh);
@@ -872,7 +873,8 @@ wait_for_iobuf:
 		if (err)
 			__jbd2_journal_abort_hard(journal);
 	}
-	err = journal_wait_on_commit_record(cbh);
+	if (!err && !is_journal_aborted(journal))
+		err = journal_wait_on_commit_record(cbh);
 
 	if (err)
 		jbd2_journal_abort(journal, err);