# This file is part of systemd.

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#

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# systemd is free software; you can redistribute it and/or modify it

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# under the terms of the GNU Lesser General Public License as published by

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# the Free Software Foundation; either version 2.1 of the License, or

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# (at your option) any later version.

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# See tmpfiles.d(5) for details

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# Set the NOCOW attribute for directories of journal files. This flag

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# is inherited by their new files and sub-directories. Matters only

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# for btrfs filesystems.

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#

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# WARNING: Enabling the NOCOW attribute improves journal performance

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# substantially, but also disables the btrfs checksum logic. In

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# btrfs RAID filesystems the checksums are needed for rebuilding

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# corrupted files. Without checksums such rebuilds are not

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# possible.

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#

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# In a single-disk filesystem (or a filesystem without redundancy)

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# enabling the NOCOW attribute for journal files is safe, because

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# they have their own checksums and a rebuilding wouldn't be possible

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# in any case.

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h /var/log/journal - - - - +C

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h /var/log/journal/%m - - - - +C

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h /var/log/journal/remote - - - - +C

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