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| author | Daan De Meyer <daan.j.demeyer@gmail.com> | 2021-10-23 22:24:56 +0100 |
|---|---|---|
| committer | Daan De Meyer <daan.j.demeyer@gmail.com> | 2022-10-07 11:26:28 +0200 |
| commit | 87413812c92b7a435e94c9c37ed634328d182d4d (patch) | |
| tree | f18284550e64e4ec7477e15ea8b6cdd878ec55c4 /docs/JOURNAL_FILE_FORMAT.md | |
| parent | c76691d708ac7fe13b7c4307c010d447fcbc3e9a (diff) | |
| download | systemd-87413812c92b7a435e94c9c37ed634328d182d4d.tar.gz | |
journal: Add compact mode
This adds a new flag in preparation for incompatible journal changes
which will be gated behind this flag. The max file size of journal
files in compact mode is limited to 4 GiB.
Diffstat (limited to 'docs/JOURNAL_FILE_FORMAT.md')
| -rw-r--r-- | docs/JOURNAL_FILE_FORMAT.md | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/docs/JOURNAL_FILE_FORMAT.md b/docs/JOURNAL_FILE_FORMAT.md index 61a27a9699..d40688c440 100644 --- a/docs/JOURNAL_FILE_FORMAT.md +++ b/docs/JOURNAL_FILE_FORMAT.md @@ -259,6 +259,7 @@ enum { HEADER_INCOMPATIBLE_COMPRESSED_LZ4 = 1 << 1, HEADER_INCOMPATIBLE_KEYED_HASH = 1 << 2, HEADER_INCOMPATIBLE_COMPRESSED_ZSTD = 1 << 3, + HEADER_INCOMPATIBLE_COMPACT = 1 << 4, }; enum { @@ -276,6 +277,9 @@ HEADER_INCOMPATIBLE_KEYED_HASH indicates that instead of the unkeyed Jenkins hash function the keyed siphash24 hash function is used for the two hash tables, see below. +HEADER_INCOMPATIBLE_COMPACT indicates that the journal file uses the new binary +format that uses less space on disk compared to the original format. + HEADER_COMPATIBLE_SEALED indicates that the file includes TAG objects required for Forward Secure Sealing. |