UVM wait states

[Robert Swindells <rjs%fdy2.co.uk@localhost>]

Would there be any objection to the following patch, it makes it easier
to see in top(1) which thing a process is waiting for.

Robert Swindells

Index: uvm_vnode.c
===================================================================
RCS file: /cvsroot/src/sys/uvm/uvm_vnode.c,v
retrieving revision 1.102
diff -u -r1.102 uvm_vnode.c
--- uvm_vnode.c 6 Dec 2015 09:38:54 -0000       1.102
+++ uvm_vnode.c 24 Feb 2016 00:00:41 -0000
@@ -265,7 +265,7 @@
                                        return 0;
                                }
                                mutex_exit(uobj->vmobjlock);
-                               uvm_wait("uvn_fp1");
+                               uvm_wait("uvnfp1");
                                mutex_enter(uobj->vmobjlock);
                                continue;
                        }
@@ -287,7 +287,7 @@
                        UVMHIST_LOG(ubchist, "wait %p (color %u)", pg,
                            VM_PGCOLOR_BUCKET(pg), 0,0);
                        UVM_UNLOCK_AND_WAIT(pg, uobj->vmobjlock, 0,
-                                           "uvn_fp2", 0);
+                                           "uvnfp2", 0);
                        mutex_enter(uobj->vmobjlock);
                        continue;
                }