The flock(1) does not refer to limitations of flock(2). Provide an
documentation entry point for solving of problems with flock on NFS
and CIFS and mention risk of deadlock.
Signed-off-by: Stanislav Brabec <sbrabec@xxxxxxx>
---
sys-utils/flock.1.adoc | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/sys-utils/flock.1.adoc b/sys-utils/flock.1.adoc
index c645a60f6..d5b4f10aa 100644
--- a/sys-utils/flock.1.adoc
+++ b/sys-utils/flock.1.adoc
@@ -91,6 +91,12 @@ The command uses <sysexits.h> exit status values for everything, except when usi
When using the _command_ variant, and executing the child worked, then the exit status is that of the child command.
+== NOTES
+
+*flock* does not detect deadlock. See *flock*(2) for details.
+
+Some file systems (e. g. NFS and CIFS) have a limited implementation of *flock*(2) and flock may always fail. For details see *flock*(2), *nfs*(5) and *mount.cifs*(8). Depending on mount options, flock can always fail there.
+
== EXAMPLES
Note that "shell> " in examples is a command line prompt.
--
2.35.1
--
Best Regards / S pozdravem,
Stanislav Brabec
software developer
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