[src/riastradh-drm2]: src/sys/external/bsd/drm2/linux Don't put work flush it...

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

details:   https://anonhg.NetBSD.org/src/rev/a6bf9c1f8833
branches:  riastradh-drm2
changeset: 788585:a6bf9c1f8833
user:      riastradh <riastradh%NetBSD.org@localhost>
date:      Mon Dec 30 04:52:21 2013 +0000

description:
Don't put work flush items on the stack; worker kmem_frees them.

diffstat:

 sys/external/bsd/drm2/linux/linux_work.c |  18 +++++++++---------
 1 files changed, 9 insertions(+), 9 deletions(-)

diffs (41 lines):

diff -r e2fe6a4a3315 -r a6bf9c1f8833 sys/external/bsd/drm2/linux/linux_work.c
--- a/sys/external/bsd/drm2/linux/linux_work.c  Mon Dec 30 04:52:11 2013 +0000
+++ b/sys/external/bsd/drm2/linux/linux_work.c  Mon Dec 30 04:52:21 2013 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: linux_work.c,v 1.1.2.7 2013/12/30 04:51:06 riastradh Exp $     */
+/*     $NetBSD: linux_work.c,v 1.1.2.8 2013/12/30 04:52:21 riastradh Exp $     */
 
 /*-
  * Copyright (c) 2013 The NetBSD Foundation, Inc.
@@ -30,7 +30,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: linux_work.c,v 1.1.2.7 2013/12/30 04:51:06 riastradh Exp $");
+__KERNEL_RCSID(0, "$NetBSD: linux_work.c,v 1.1.2.8 2013/12/30 04:52:21 riastradh Exp $");
 
 #include <sys/types.h>
 #include <sys/param.h>
@@ -204,15 +204,15 @@
        cv_init(&wqf.wqf_cv, "lnxwflsh");
 
        if (1) {
-               static const struct wq_flush_work zero_wqfw;
-               struct wq_flush_work wqfw = zero_wqfw;
+               struct wq_flush_work *const wqfw = kmem_zalloc(sizeof(*wqfw),
+                   KM_SLEEP);
 
                wqf.wqf_n = 1;
-               wqfw.wqfw_flush = &wqf;
-               INIT_WORK(&wqfw.wqfw_work, &linux_wq_barrier);
-               wqfw.wqfw_work.w_wq = wq;
-               wqfw.wqfw_work.w_state = WORK_PENDING;
-               workqueue_enqueue(wq->wq_workqueue, &wqfw.wqfw_work.w_wk,
+               wqfw->wqfw_flush = &wqf;
+               INIT_WORK(&wqfw->wqfw_work, &linux_wq_barrier);
+               wqfw->wqfw_work.w_wq = wq;
+               wqfw->wqfw_work.w_state = WORK_PENDING;
+               workqueue_enqueue(wq->wq_workqueue, &wqfw->wqfw_work.w_wk,
                    NULL);
        } else {
                struct cpu_info *ci;