From 8fcfcbce0e9b985be0c06568b1e8e5f4216baa7a Mon Sep 17 00:00:00 2001
From: Christian Prochaska <christian.prochaska@genode-labs.com>
Date: Thu, 26 Jan 2017 17:20:17 +0100
Subject: [PATCH] lxip: implement 'mod_delayed_work()'

Fixes #2258
---
 repos/dde_linux/src/lib/lxip/dummies.cc   |  1 -
 repos/dde_linux/src/lib/lxip/lxcc_emul.cc | 28 +++++++++++++++++++++++
 2 files changed, 28 insertions(+), 1 deletion(-)

diff --git a/repos/dde_linux/src/lib/lxip/dummies.cc b/repos/dde_linux/src/lib/lxip/dummies.cc
index 809bfdb03e..da598d13c1 100644
--- a/repos/dde_linux/src/lib/lxip/dummies.cc
+++ b/repos/dde_linux/src/lib/lxip/dummies.cc
@@ -335,7 +335,6 @@ DUMMY(-1, linkwatch_run_queue)
 DUMMY(-1, local_softirq_pending)
 DUMMY(-1, lockdep_rtnl_is_held)
 DUMMY(-1, min)
-DUMMY_STOP(-1, mod_delayed_work)
 DUMMY(-1, module_put)
 DUMMY(-1, move_addr_to_kernel)
 DUMMY(-1, mq_qdisc_ops)
diff --git a/repos/dde_linux/src/lib/lxip/lxcc_emul.cc b/repos/dde_linux/src/lib/lxip/lxcc_emul.cc
index 1145fa0756..01beac15f5 100644
--- a/repos/dde_linux/src/lib/lxip/lxcc_emul.cc
+++ b/repos/dde_linux/src/lib/lxip/lxcc_emul.cc
@@ -690,3 +690,31 @@ size_t csum_and_copy_to_iter(void *addr, size_t bytes, __wsum *csum, struct iov_
  ******************/
 
 void __wake_up(wait_queue_head_t *q, bool all) { }
+
+
+/***********************
+ ** linux/workqueue.h **
+ ***********************/
+
+static void execute_delayed_work(unsigned long dwork)
+{
+	delayed_work *d = (delayed_work *)dwork;
+	d->work.func(&d->work);
+}
+
+
+bool mod_delayed_work(struct workqueue_struct *wq, struct delayed_work *dwork,
+                      unsigned long delay)
+{
+	/* treat delayed work without delay like any other work */
+	if (delay == 0) {
+		execute_delayed_work((unsigned long)dwork);
+	} else {
+		if (!dwork->timer.function) {
+			setup_timer(&dwork->timer, execute_delayed_work,
+			            (unsigned long)dwork);
+		}
+		mod_timer(&dwork->timer, delay);
+	}
+	return true;
+}