[src/trunk]: src/sys/external/bsd/drm2/dist/drm Use kref_exclusive_p, rather ...

[riastradh <riastradh%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/7d943871ad52
branches:  trunk
changeset: 834899:7d943871ad52
user:      riastradh <riastradh%NetBSD.org@localhost>
date:      Mon Aug 27 06:52:11 2018 +0000

description:
Use kref_exclusive_p, rather than abusing kref abstraction.

diffstat:

 sys/external/bsd/drm2/dist/drm/drm_crtc.c |  8 ++++----
 1 files changed, 4 insertions(+), 4 deletions(-)

diffs (36 lines):

diff -r d6e0e907e3dd -r 7d943871ad52 sys/external/bsd/drm2/dist/drm/drm_crtc.c
--- a/sys/external/bsd/drm2/dist/drm/drm_crtc.c Mon Aug 27 06:51:52 2018 +0000
+++ b/sys/external/bsd/drm2/dist/drm/drm_crtc.c Mon Aug 27 06:52:11 2018 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: drm_crtc.c,v 1.5 2018/08/27 04:58:19 riastradh Exp $   */
+/*     $NetBSD: drm_crtc.c,v 1.6 2018/08/27 06:52:11 riastradh Exp $   */
 
 /*
  * Copyright (c) 2006-2008 Intel Corporation
@@ -32,7 +32,7 @@
  *      Jesse Barnes <jesse.barnes%intel.com@localhost>
  */
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: drm_crtc.c,v 1.5 2018/08/27 04:58:19 riastradh Exp $");
+__KERNEL_RCSID(0, "$NetBSD: drm_crtc.c,v 1.6 2018/08/27 06:52:11 riastradh Exp $");
 
 #include <linux/err.h>
 #include <linux/spinlock.h>
@@ -3400,7 +3400,7 @@
         * so run this in a separate stack as there's no way to correctly
         * handle this after the fb is already removed from the lookup table.
         */
-       if (atomic_read(&fb->refcount.refcount) > 1) {
+       if (!kref_exclusive_p(&fb->refcount)) {
                struct drm_mode_rmfb_work arg;
 
                INIT_WORK_ONSTACK(&arg.work, drm_mode_rmfb_work_fn);
@@ -3598,7 +3598,7 @@
         * at it any more.
         */
        list_for_each_entry_safe(fb, tfb, &priv->fbs, filp_head) {
-               if (atomic_read(&fb->refcount.refcount) > 1) {
+               if (!kref_exclusive_p(&fb->refcount)) {
                        list_move_tail(&fb->filp_head, &arg.fbs);
                } else {
                        list_del_init(&fb->filp_head);