Add warning printf w.r.t. removal of sys/nfs/nfs_lock.c.

The code in sys/nfs/nfs_lock.c has not been run by default since March 2008
when it was replaced by the in kernel sys/nlm code.
It uses Giant, so it needs to be removed before the FreeBSD 13 release.
This will happen in a couple of months, since few if any users run
the code anyhow and can easily switch to the default in kernel NFSLOCKD.

1 files changed, 2 insertions, 0 deletions

diff --git a/sys/nfs/nfs_lock.c b/sys/nfs/nfs_lock.c
index efa1e80b5b74..6ebb7e83ff2d 100644
--- a/sys/nfs/nfs_lock.c
+++ b/sys/nfs/nfs_lock.c
@@ -89,6 +89,8 @@ nfslock_open(struct cdev *dev, int oflags, int devtype, struct thread *td)
 {
 	int error;
 
+	printf("WARNING: uses Giant and will be removed before FreeBSD 13\n"
+	    "\tuse the kernel NFSLOCKD/nfslockd.ko\n");
 	error = priv_check(td, PRIV_NFS_LOCKD);
 	if (error)
 		return (error);