---
name: "journal_update_format"
section: "9"
platform: "linux"
package: "linux-manual-3.16"
version: "3.16.56-1+deb8u1"
release: "Debian 8 (Jessie)"
platforms: ["linux"]
url: "https://new.carta.tech/journal_update_format"
---

# journal\_update\_format(9)

Update on-disk journal structure.

## NAME

journal\_update\_format - Update on-disk journal structure.

## SYNOPSIS

**int journal\_update\_format(journal\_t \*** *journal***);**

## ARGUMENTS

*journal*

Journal to act on.

## DESCRIPTION

Given an initialised but unloaded journal struct, poke about in the on-disk structure to update it to the most recent supported version.

## AUTHORS

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

Author.

**Stephen Tweedie** \<sct@redhat.com\>

Author.

## COPYRIGHT