diff --git a/include/linux/libata.h b/include/linux/libata.h
index 5f04006..b3f32ea 100644
--- a/include/linux/libata.h
+++ b/include/linux/libata.h
@@ -568,6 +568,7 @@
 	struct ata_host		*host;
 	struct device 		*dev;
 
+	void			*port_task_data;
 	struct delayed_work	port_task;
 	struct delayed_work	hotplug_task;
 	struct work_struct	scsi_rescan_task;
@@ -747,7 +748,7 @@
 extern unsigned int ata_busy_sleep(struct ata_port *ap,
 				   unsigned long timeout_pat,
 				   unsigned long timeout);
-extern void ata_port_queue_task(struct ata_port *ap, void (*fn)(void *),
+extern void ata_port_queue_task(struct ata_port *ap, work_func_t fn,
 				void *data, unsigned long delay);
 extern u32 ata_wait_register(void __iomem *reg, u32 mask, u32 val,
 			     unsigned long interval_msec,
diff --git a/include/linux/workqueue.h b/include/linux/workqueue.h
index ecc017d..4a3ea83 100644
--- a/include/linux/workqueue.h
+++ b/include/linux/workqueue.h
@@ -11,18 +11,19 @@
 
 struct workqueue_struct;
 
-typedef void (*work_func_t)(void *data);
+struct work_struct;
+typedef void (*work_func_t)(struct work_struct *work);
 
 struct work_struct {
-	/* the first word is the work queue pointer and the pending flag
-	 * rolled into one */
+	/* the first word is the work queue pointer and the flags rolled into
+	 * one */
 	unsigned long management;
 #define WORK_STRUCT_PENDING 0		/* T if work item pending execution */
+#define WORK_STRUCT_NOAUTOREL 1		/* F if work item automatically released on exec */
 #define WORK_STRUCT_FLAG_MASK (3UL)
 #define WORK_STRUCT_WQ_DATA_MASK (~WORK_STRUCT_FLAG_MASK)
 	struct list_head entry;
 	work_func_t func;
-	void *data;
 };
 
 struct delayed_work {
@@ -34,48 +35,77 @@
 	struct work_struct work;
 };
 
-#define __WORK_INITIALIZER(n, f, d) {				\
+#define __WORK_INITIALIZER(n, f) {				\
+	.management = 0,					\
         .entry	= { &(n).entry, &(n).entry },			\
 	.func = (f),						\
-	.data = (d),						\
 	}
 
-#define __DELAYED_WORK_INITIALIZER(n, f, d) {			\
-	.work = __WORK_INITIALIZER((n).work, (f), (d)),		\
+#define __WORK_INITIALIZER_NAR(n, f) {				\
+	.management = (1 << WORK_STRUCT_NOAUTOREL),		\
+        .entry	= { &(n).entry, &(n).entry },			\
+	.func = (f),						\
+	}
+
+#define __DELAYED_WORK_INITIALIZER(n, f) {			\
+	.work = __WORK_INITIALIZER((n).work, (f)),		\
 	.timer = TIMER_INITIALIZER(NULL, 0, 0),			\
 	}
 
-#define DECLARE_WORK(n, f, d)					\
-	struct work_struct n = __WORK_INITIALIZER(n, f, d)
+#define __DELAYED_WORK_INITIALIZER_NAR(n, f) {			\
+	.work = __WORK_INITIALIZER_NAR((n).work, (f)),		\
+	.timer = TIMER_INITIALIZER(NULL, 0, 0),			\
+	}
 
-#define DECLARE_DELAYED_WORK(n, f, d)				\
-	struct delayed_work n = __DELAYED_WORK_INITIALIZER(n, f, d)
+#define DECLARE_WORK(n, f)					\
+	struct work_struct n = __WORK_INITIALIZER(n, f)
+
+#define DECLARE_WORK_NAR(n, f)					\
+	struct work_struct n = __WORK_INITIALIZER_NAR(n, f)
+
+#define DECLARE_DELAYED_WORK(n, f)				\
+	struct delayed_work n = __DELAYED_WORK_INITIALIZER(n, f)
+
+#define DECLARE_DELAYED_WORK_NAR(n, f)			\
+	struct dwork_struct n = __DELAYED_WORK_INITIALIZER_NAR(n, f)
 
 /*
- * initialize a work item's function and data pointers
+ * initialize a work item's function pointer
  */
-#define PREPARE_WORK(_work, _func, _data)			\
+#define PREPARE_WORK(_work, _func)				\
 	do {							\
 		(_work)->func = (_func);			\
-		(_work)->data = (_data);			\
 	} while (0)
 
-#define PREPARE_DELAYED_WORK(_work, _func, _data)		\
-	PREPARE_WORK(&(_work)->work, (_func), (_data))
+#define PREPARE_DELAYED_WORK(_work, _func)			\
+	PREPARE_WORK(&(_work)->work, (_func))
 
 /*
  * initialize all of a work item in one go
  */
-#define INIT_WORK(_work, _func, _data)				\
+#define INIT_WORK(_work, _func)					\
 	do {							\
-		INIT_LIST_HEAD(&(_work)->entry);		\
 		(_work)->management = 0;			\
-		PREPARE_WORK((_work), (_func), (_data));	\
+		INIT_LIST_HEAD(&(_work)->entry);		\
+		PREPARE_WORK((_work), (_func));			\
 	} while (0)
 
-#define INIT_DELAYED_WORK(_work, _func, _data)		\
+#define INIT_WORK_NAR(_work, _func)					\
+	do {								\
+		(_work)->management = (1 << WORK_STRUCT_NOAUTOREL);	\
+		INIT_LIST_HEAD(&(_work)->entry);			\
+		PREPARE_WORK((_work), (_func));				\
+	} while (0)
+
+#define INIT_DELAYED_WORK(_work, _func)				\
 	do {							\
-		INIT_WORK(&(_work)->work, (_func), (_data));	\
+		INIT_WORK(&(_work)->work, (_func));		\
+		init_timer(&(_work)->timer);			\
+	} while (0)
+
+#define INIT_DELAYED_WORK_NAR(_work, _func)			\
+	do {							\
+		INIT_WORK_NAR(&(_work)->work, (_func));		\
 		init_timer(&(_work)->timer);			\
 	} while (0)
 
@@ -94,6 +124,27 @@
 #define delayed_work_pending(work) \
 	test_bit(WORK_STRUCT_PENDING, &(work)->work.management)
 
+/**
+ * work_release - Release a work item under execution
+ * @work: The work item to release
+ *
+ * This is used to release a work item that has been initialised with automatic
+ * release mode disabled (WORK_STRUCT_NOAUTOREL is set).  This gives the work
+ * function the opportunity to grab auxiliary data from the container of the
+ * work_struct before clearing the pending bit as the work_struct may be
+ * subject to deallocation the moment the pending bit is cleared.
+ *
+ * In such a case, this should be called in the work function after it has
+ * fetched any data it may require from the containter of the work_struct.
+ * After this function has been called, the work_struct may be scheduled for
+ * further execution or it may be deallocated unless other precautions are
+ * taken.
+ *
+ * This should also be used to release a delayed work item.
+ */
+#define work_release(work) \
+	clear_bit(WORK_STRUCT_PENDING, &(work)->management)
+
 
 extern struct workqueue_struct *__create_workqueue(const char *name,
 						    int singlethread);
@@ -112,7 +163,7 @@
 extern int FASTCALL(schedule_delayed_work(struct delayed_work *work, unsigned long delay));
 
 extern int schedule_delayed_work_on(int cpu, struct delayed_work *work, unsigned long delay);
-extern int schedule_on_each_cpu(work_func_t func, void *info);
+extern int schedule_on_each_cpu(work_func_t func);
 extern void flush_scheduled_work(void);
 extern int current_is_keventd(void);
 extern int keventd_up(void);
@@ -121,7 +172,7 @@
 void cancel_rearming_delayed_work(struct delayed_work *work);
 void cancel_rearming_delayed_workqueue(struct workqueue_struct *,
 				       struct delayed_work *);
-int execute_in_process_context(work_func_t fn, void *, struct execute_work *);
+int execute_in_process_context(work_func_t fn, struct execute_work *);
 
 /*
  * Kill off a pending schedule_delayed_work().  Note that the work callback
diff --git a/include/net/inet_timewait_sock.h b/include/net/inet_timewait_sock.h
index 5f48748..f7be1ac 100644
--- a/include/net/inet_timewait_sock.h
+++ b/include/net/inet_timewait_sock.h
@@ -84,7 +84,7 @@
 };
 
 extern void inet_twdr_hangman(unsigned long data);
-extern void inet_twdr_twkill_work(void *data);
+extern void inet_twdr_twkill_work(struct work_struct *work);
 extern void inet_twdr_twcal_tick(unsigned long data);
 
 #if (BITS_PER_LONG == 64)