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| author | Lennart Poettering <lennart@poettering.net> | 2019-01-18 16:34:45 +0100 |
|---|---|---|
| committer | Lennart Poettering <lennart@poettering.net> | 2019-02-15 17:16:54 +0100 |
| commit | aa1f2e52e8445c8059c3793dfd779e2296eb5f2a (patch) | |
| tree | 455f52e6c38c232fd7212d0763db42707d61228a /man/tmpfiles.d.xml | |
| parent | tmpfiles: while aging, take a BSD file lock on each directory we descent into (diff) | |
| download | systemd-aa1f2e52e8445c8059c3793dfd779e2296eb5f2a.tar.xz systemd-aa1f2e52e8445c8059c3793dfd779e2296eb5f2a.zip | |
man: document the new BSD file lock logic in tmpfiles
Diffstat (limited to 'man/tmpfiles.d.xml')
| -rw-r--r-- | man/tmpfiles.d.xml | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/man/tmpfiles.d.xml b/man/tmpfiles.d.xml index 3f2ef7ee97..e5ea2bec8b 100644 --- a/man/tmpfiles.d.xml +++ b/man/tmpfiles.d.xml @@ -545,6 +545,14 @@ w- /proc/sys/vm/swappiness - - - - 10</programlisting></para> (ctime). Any of these three (or two) values will prevent cleanup if it is more recent than the current time minus the age field.</para> + + <para>Note that while the aging algorithm is run a 'shared' BSD file lock (see <citerefentry + project='man-pages'><refentrytitle>flock</refentrytitle><manvolnum>2</manvolnum></citerefentry>) is + taken on each directory the algorithm descends into (and each directory below that, and so on). If the + aging algorithm finds a lock is already taken on some directory, it (and everything below it) is + skipped. Applications may use this to temporarily exclude certain directory subtrees from the aging + algorithm: the applications can take a BSD file lock themselves, and as long as they keep it aging of + the directory and everything below it is disabled.</para> </refsect2> <refsect2> |