NFSD: Note an additional requirement when passing TCP sockets to portlist
User space must call listen(3) on SOCK_STREAM sockets passed into
/proc/fs/nfsd/portlist, otherwise that listener is ignored. Document
this.
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
diff --git a/fs/nfsd/nfsctl.c b/fs/nfsd/nfsctl.c
index b6a847f..d491fa9 100644
--- a/fs/nfsd/nfsctl.c
+++ b/fs/nfsd/nfsctl.c
@@ -1061,7 +1061,9 @@
* buf: C string containing an unsigned
* integer value representing a bound
* but unconnected socket that is to be
- * used as an NFSD listener
+ * used as an NFSD listener; listen(3)
+ * must be called for a SOCK_STREAM
+ * socket, otherwise it is ignored
* size: non-zero length of C string in @buf
* Output:
* On success: NFS service is started;