JBD2_JOURNAL_LOCK_UP(9)

NAME
jbd2_journal_lock_updates - establish a transaction barrier.

SYNOPSIS

void jbd2_journal_lock_updates(journal_t * journal);

ARGUMENTS

journal
    Journal to establish a barrier on.

DESCRIPTION

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.

AUTHORS

Roger Gammans <rgammans@computer-surgery.co.uk>
    Author.

Stephen Tweedie <sct@redhat.com>
    Author.

COPYRIGHT