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- # This file is part of systemd.
- #
- # systemd is free software; you can redistribute it and/or modify it
- # under the terms of the GNU Lesser General Public License as published by
- # the Free Software Foundation; either version 2.1 of the License, or
- # (at your option) any later version.
- # See tmpfiles.d(5) for details
- # Set the NOCOW attribute for directories of journal files. This flag
- # is inherited by their new files and sub-directories. Matters only
- # for btrfs filesystems.
- #
- # WARNING: Enabling the NOCOW attribute improves journal performance
- # substantially, but also disables the btrfs checksum logic. In
- # btrfs RAID filesystems the checksums are needed for rebuilding
- # corrupted files. Without checksums such rebuilds are not
- # possible.
- #
- # In a single-disk filesystem (or a filesystem without redundancy)
- # enabling the NOCOW attribute for journal files is safe, because
- # they have their own checksums and a rebuilding wouldn't be possible
- # in any case.
- h /var/log/journal - - - - +C
- h /var/log/journal/%m - - - - +C
- h /var/log/journal/remote - - - - +C
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