Use FREF()...

[Martin Pieuchot]

...instead of incrementing f_count directly, ok?

Index: nfs/nfs_syscalls.c
===================================================================
RCS file: /cvs/src/sys/nfs/nfs_syscalls.c,v
retrieving revision 1.111
diff -u -p -r1.111 nfs_syscalls.c
--- nfs/nfs_syscalls.c  1 Sep 2017 15:05:31 -0000       1.111
+++ nfs/nfs_syscalls.c  29 Jan 2018 12:00:45 -0000
@@ -288,7 +288,7 @@ nfssvc_addsock(struct file *fp, struct m
        }
        slp->ns_so = so;
        slp->ns_nam = mynam;
-       fp->f_count++;
+       FREF(fp);
        slp->ns_fp = fp;
        so->so_upcallarg = (caddr_t)slp;
        so->so_upcall = nfsrv_rcv;