summaryrefslogtreecommitdiff
path: root/man/systemd.nspawn.xml
diff options
context:
space:
mode:
authorLennart Poettering <lennart@poettering.net>2021-10-19 14:56:49 +0200
committerLennart Poettering <lennart@poettering.net>2021-10-20 11:35:15 +0200
commit4a4654e0241fbeabecb8587fd3520b6b39264b9c (patch)
tree2e4366a646eb12e254fc631e344a832987aa27c6 /man/systemd.nspawn.xml
parent231c7645ca761f0347c98fa48c68b3fde00fbc15 (diff)
downloadsystemd-4a4654e0241fbeabecb8587fd3520b6b39264b9c.tar.gz
nspawn: add --suppress-sync=yes mode for turning sync() and friends into NOPs via seccomp
This is supposed to be used by package/image builders such as mkosi to speed up building, since it allows us to suppress sync() inside a container. This does what Debian's eatmydata tool does, but for a container, and via seccomp (instead of LD_PRELOAD).
Diffstat (limited to 'man/systemd.nspawn.xml')
-rw-r--r--man/systemd.nspawn.xml10
1 files changed, 10 insertions, 0 deletions
diff --git a/man/systemd.nspawn.xml b/man/systemd.nspawn.xml
index dc0e2f9fd2..bb9bf4b5d9 100644
--- a/man/systemd.nspawn.xml
+++ b/man/systemd.nspawn.xml
@@ -365,6 +365,16 @@
details.</para></listitem>
</varlistentry>
+ <varlistentry>
+ <term><varname>SuppressSync=</varname></term>
+
+ <listitem><para>Configures whether to suppress disk synchronization for the container payload. This
+ is equivalent to the <option>--suppress-sync=</option> command line switch, and takes the same
+ parameter. See
+ <citerefentry><refentrytitle>systemd-nspawn</refentrytitle><manvolnum>1</manvolnum></citerefentry>
+ for details.</para></listitem>
+ </varlistentry>
+
</variablelist>
</refsect1>