Module Name: src
Committed By: riastradh
Date: Sat Dec 14 16:58:25 UTC 2019
Modified Files:
src/sys/kern: kern_ras.c
Log Message:
Remove charade dancing around now-dead RCU patent.
To generate a diff of this commit:
cvs rdiff -u -r1.39 -r1.40 src/sys/kern/kern_ras.c
Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.
Modified files:
Index: src/sys/kern/kern_ras.c
diff -u src/sys/kern/kern_ras.c:1.39 src/sys/kern/kern_ras.c:1.40
--- src/sys/kern/kern_ras.c:1.39 Sun Oct 6 15:11:17 2019
+++ src/sys/kern/kern_ras.c Sat Dec 14 16:58:25 2019
@@ -1,4 +1,4 @@
-/* $NetBSD: kern_ras.c,v 1.39 2019/10/06 15:11:17 uwe Exp $ */
+/* $NetBSD: kern_ras.c,v 1.40 2019/12/14 16:58:25 riastradh Exp $ */
/*-
* Copyright (c) 2002, 2006, 2007, 2008 The NetBSD Foundation, Inc.
@@ -30,7 +30,7 @@
*/
#include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: kern_ras.c,v 1.39 2019/10/06 15:11:17 uwe Exp $");
+__KERNEL_RCSID(0, "$NetBSD: kern_ras.c,v 1.40 2019/12/14 16:58:25 riastradh Exp $");
#include <sys/param.h>
#include <sys/systm.h>
@@ -65,25 +65,7 @@ ras_sync(void)
/* No need to sync if exiting or single threaded. */
if (curproc->p_nlwps > 1 && ncpu > 1) {
-#ifdef NO_SOFTWARE_PATENTS
xc_barrier(0);
-#else
- /*
- * Assumptions:
- *
- * o preemption is disabled by the thread in
- * ras_lookup().
- * o proc::p_raslist is only inspected with
- * preemption disabled.
- * o ras_lookup() plus loads reordered in advance
- * will take no longer than 1/8s to complete.
- */
- const int delta = hz >> 3;
- int target = hardclock_ticks + delta;
- do {
- kpause("ras", false, delta, NULL);
- } while (hardclock_ticks < target);
-#endif
}
}
