jbd2_journal_lock_updates9

Establish a transaction barrier.

Usage

void jbd2_journal_lock_updates(journal_t * journal);

Arguments

journal

Journal to establish a barrier on.

Overview

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.