Add a backport for flush_delayed_work()

We can't really *flush* per se, see the code for more
details but we can at least delete and synch the timer.

Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>

diff --git a/include/linux/compat-2.6.32.h b/include/linux/compat-2.6.32.h
index 54f7cb09f57551a47f78540e400215645a1e8242..727ac71d613eb549b544fc2584612fa104676e37 100644 (file)
--- a/include/linux/compat-2.6.32.h
+++ b/include/linux/compat-2.6.32.h
@@ -9,6 +9,7 @@
 #include <linux/netdevice.h>
 #include <asm/compat.h>
 #include <net/iw_handler.h>
+#include <linux/workqueue.h>
 
 #define SDIO_VENDOR_ID_INTEL                   0x0089
 #define SDIO_DEVICE_ID_INTEL_IWMC3200WIMAX     0x1402
@@ -17,6 +18,24 @@
 #define SDIO_DEVICE_ID_INTEL_IWMC3200GPS       0x1405
 #define SDIO_DEVICE_ID_INTEL_IWMC3200BT                0x1406
 
+static inline void flush_delayed_work(struct delayed_work *dwork)
+{
+       if (del_timer_sync(&dwork->timer)) {
+               /*
+                * This is what would happen on 2.6.32 but since we don't have
+                * access to the singlethread_cpu we can't really backport this,
+                * so avoid really *flush*ing the work... Oh well. Any better ideas?
+
+               struct cpu_workqueue_struct *cwq;
+               cwq = wq_per_cpu(keventd_wq, get_cpu());
+               __queue_work(cwq, &dwork->work);
+               put_cpu();
+
+               */
+       }
+       flush_work(&dwork->work);
+}
+
 /*
  * struct genl_multicast_group was made netns aware through
  * patch "genetlink: make netns aware" by johannes, we just