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JBD2_JOURNAL_LOCK_UP(9) The Linux Journalling API 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_t * 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

June 2017 Kernel Hackers Manual 4.11