Split P_NOLOAD into a per-thread flag (TDF_NOLOAD).

This improvements aims for avoiding further cache-misses in scheduler
specific functions which need to keep track of average thread running
time and further locking in places setting for this flag.

Reported by:	jeff (originally), kris (currently)
Reviewed by:	jhb
Tested by:	Giuseppe Cocomazzi <sbudella at email dot it>

1 files changed, 5 insertions, 5 deletions

diff --git a/sys/kern/kern_intr.c b/sys/kern/kern_intr.c
index d22bfea..3554b9f 100644
--- a/sys/kern/kern_intr.c
+++ b/sys/kern/kern_intr.c
@@ -1061,6 +1061,7 @@ int
 swi_add(struct intr_event **eventp, const char *name, driver_intr_t handler,
 	    void *arg, int pri, enum intr_type flags, void **cookiep)
 {
+	struct thread *td;
 	struct intr_event *ie;
 	int error;
 
@@ -1085,11 +1086,10 @@ swi_add(struct intr_event **eventp, const char *name, driver_intr_t handler,
 	if (error)
 		return (error);
 	if (pri == SWI_CLOCK) {
-		struct proc *p;
-		p = ie->ie_thread->it_thread->td_proc;
-		PROC_LOCK(p);
-		p->p_flag |= P_NOLOAD;
-		PROC_UNLOCK(p);
+		td = ie->ie_thread->it_thread;
+		thread_lock(td);
+		td->td_flags |= TDF_NOLOAD;
+		thread_unlock(td);
 	}
 	return (0);
 }