Provided by: linux-doc-2.6.15_2.6.15-23.39_all
journal_lock_updates - establish a transaction barrier.
void journal_lock_updates (journal_t * journal);
Journal to establish a barrier on.
This locks out any further updates from being started, and blocks until
all existing updates have completed, returning only once the journal is
in a quiescent state with no updates running.
The journal lock should not be held on entry.
Roger Gammans <email@example.com>, Stephen Tweedie