[src/riastradh-drm2]: src/sys/external/bsd/drm2/include/linux Add callout-bas...

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

details:   https://anonhg.NetBSD.org/src/rev/26831b3fb24c
branches:  riastradh-drm2
changeset: 788021:26831b3fb24c
user:      riastradh <riastradh%NetBSD.org@localhost>
date:      Wed Jul 24 01:52:24 2013 +0000

description:
Add callout-based delayed_work implementation to <linux/workqueue.h>.

diffstat:

 sys/external/bsd/drm2/include/linux/workqueue.h |  42 ++++++++++++++++++++++++-
 1 files changed, 41 insertions(+), 1 deletions(-)

diffs (54 lines):

diff -r da5dd0fb8f09 -r 26831b3fb24c sys/external/bsd/drm2/include/linux/workqueue.h
--- a/sys/external/bsd/drm2/include/linux/workqueue.h   Wed Jul 24 01:52:08 2013 +0000
+++ b/sys/external/bsd/drm2/include/linux/workqueue.h   Wed Jul 24 01:52:24 2013 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: workqueue.h,v 1.1.2.1 2013/07/24 00:33:12 riastradh Exp $      */
+/*     $NetBSD: workqueue.h,v 1.1.2.2 2013/07/24 01:52:24 riastradh Exp $      */
 
 /*-
  * Copyright (c) 2013 The NetBSD Foundation, Inc.
@@ -32,4 +32,44 @@
 #ifndef _LINUX_WORKQUEUE_H_
 #define _LINUX_WORKQUEUE_H_
 
+#include <sys/callout.h>
+
+#include <linux/kernel.h>
+
+struct work_struct {
+       struct callout ws_callout;
+};
+
+struct delayed_work {
+       struct work_struct dw_work;
+};
+
+static inline void
+INIT_DELAYED_WORK(struct delayed_work *dw, void (*fn)(struct delayed_work *))
+{
+
+       /* XXX This cast business is sketchy.  */
+       callout_setfunc(&dw->dw_work.ws_callout, (void (*)(void *))fn,
+           &dw->dw_work);
+}
+
+static inline struct delayed_work *
+to_delayed_work(struct work_struct *work)
+{
+       return container_of(work, struct delayed_work, dw_work);
+}
+
+static inline void
+schedule_delayed_work(struct delayed_work *dw, unsigned long ticks)
+{
+       KASSERT(ticks < INT_MAX);
+       callout_schedule(&dw->dw_work.ws_callout, (int)ticks);
+}
+
+static inline void
+cancel_delayed_work_sync(struct delayed_work *dw)
+{
+       callout_stop(&dw->dw_work.ws_callout);
+}
+
 #endif  /* _LINUX_WORKQUEUE_H_ */