When logging genio, check if we need to yield in the same way as in uiomove.

diff --git a/sys/kern/kern_ktrace.c b/sys/kern/kern_ktrace.c
index f328f16..f9c4ea2 100644 (file)
--- a/sys/kern/kern_ktrace.c
+++ b/sys/kern/kern_ktrace.c
@@ -1,4 +1,4 @@
-/*     $OpenBSD: kern_ktrace.c,v 1.15 2000/04/19 08:35:37 art Exp $    */
+/*     $OpenBSD: kern_ktrace.c,v 1.16 2000/04/19 10:13:22 art Exp $    */
 /*     $NetBSD: kern_ktrace.c,v 1.23 1996/02/09 18:59:36 christos Exp $        */
 
 /*
@@ -194,6 +194,12 @@ ktrgenio(vp, fd, rw, iov, len, error)
 
        buflen -= sizeof(struct ktr_genio);
        while (resid > 0) {
+               /*
+                * Don't allow this process to hog the cpu when doing
+                * huge I/O.
+                */
+               if (p->p_schedflags & PSCHED_SHOULDYIELD)
+                       preempt(NULL);
                cnt = min(iov->iov_len, buflen);
                if (copyin(iov->iov_base, cp, cnt))
                        goto done;