Merge tag 'ext4_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4

Ext4 commits for 3.3 merge window

* tag 'ext4_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4: (32 commits)
  ext4: fix undefined behavior in ext4_fill_flex_info()
  ext4: make more symbols static
  ext4: make local symbol ext4_initxattrs static
  jbd2: fix hung processes in jbd2_journal_lock_updates()
  ext4: reserve new feature flag codepoints
  ext4: Report max_batch_time option correctly
  ext4: add missing ext4_resize_end on error paths
  ext4: let ext4_group_add() use common code
  ext4: let ext4_group_extend() use common code
  ext4: add new online resize interface
  ext4: add a new function which adds a flex group to a fs
  ext4: add a new function which allocates bitmaps and inode tables
  ext4: pass verify_reserved_gdb() the number of group decriptors
  ext4: add a function which updates the super block during online resizing
  ext4: add a function which sets up a block group descriptors of a flex bg
  ext4: add a function which sets up group blocks of a flex bg
  ext4: add a structure which will be used by 64bit-resize interface
  ext4: add a function which adds a new group descriptors to a fs
  ext4: add a function which extends a group without checking parameters
  ext4: use proper little-endian bitops
  ...

1 files changed, 3 insertions, 2 deletions

diff --git a/fs/jbd2/transaction.c b/fs/jbd2/transaction.c
index a0e41a4c080e..35ae096bed5d 100644
--- a/fs/jbd2/transaction.c
+++ b/fs/jbd2/transaction.c
@@ -517,12 +517,13 @@ void jbd2_journal_lock_updates(journal_t *journal)
 			break;
 
 		spin_lock(&transaction->t_handle_lock);
+		prepare_to_wait(&journal->j_wait_updates, &wait,
+				TASK_UNINTERRUPTIBLE);
 		if (!atomic_read(&transaction->t_updates)) {
 			spin_unlock(&transaction->t_handle_lock);
+			finish_wait(&journal->j_wait_updates, &wait);
 			break;
 		}
-		prepare_to_wait(&journal->j_wait_updates, &wait,
-				TASK_UNINTERRUPTIBLE);
 		spin_unlock(&transaction->t_handle_lock);
 		write_unlock(&journal->j_state_lock);
 		schedule();