---
name: "typedef_journal_t"
section: "9"
platform: "linux"
package: "linux-manual-4.9"
version: "4.9.228-1"
release: "Debian 9 (Stretch)"
platforms: ["linux"]
url: "https://new.carta.tech/typedef_journal_t"
---

# typedef\_journal\_t(9)

The journal\_t maintains all of the journaling state information for a single filesystem.

## NAME

typedef\_journal\_t - The journal\_t maintains all of the journaling state information for a single filesystem.

## SYNOPSIS

```
typedef journal_t;
```

## DESCRIPTION

journal\_t is linked to from the fs superblock structure.

We use the journal\_t to keep track of all outstanding transaction activity on the filesystem, and to manage the state of the log writing process.

This is an opaque datatype.

## AUTHORS

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

Author.

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

Author.

## COPYRIGHT