[systemd-devel] [PATCH 4/4] Add a new tmpfiles.d snippets to set the NOCOW the journal.

Goffredo Baroncelli kreijack at libero.it
Tue Mar 10 12:36:35 PDT 2015

Add a new tmpfiles.d snippets to set the NOCOW attributes for the
journal files. This allow better perfomance when the root file system
is BTRFS. Pay attention that the NOCOW flags disables the checksum and
prevent scrub to rebuild a corrupted journal.
 tmpfiles.d/journal-nocow.conf | 12 ++++++++++++
 1 file changed, 12 insertions(+)
 create mode 100644 tmpfiles.d/journal-nocow.conf

diff --git a/tmpfiles.d/journal-nocow.conf b/tmpfiles.d/journal-nocow.conf
new file mode 100644
index 0000000..43a4f2b
--- /dev/null
+++ b/tmpfiles.d/journal-nocow.conf
@@ -0,0 +1,12 @@
+#  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 journal file as NOCOW; only valid for BTRFS filesystem
+h /var/log/journal/%m - - - - +C

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