Merge branch 'for-2.6.39' of git://git.kernel.org/pub/scm/linux/kerne…

…l/git/tj/wq

* 'for-2.6.39' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq:
  workqueue: fix build failure introduced by s/freezeable/freezable/
  workqueue: add system_freezeable_wq
  rds/ib: use system_wq instead of rds_ib_fmr_wq
  net/9p: replace p9_poll_task with a work
  net/9p: use system_wq instead of p9_mux_wq
  xfs: convert to alloc_workqueue()
  reiserfs: make commit_wq use the default concurrency level
  ocfs2: use system_wq instead of ocfs2_quota_wq
  ext4: convert to alloc_workqueue()
  scsi/scsi_tgt_lib: scsi_tgtd isn't used in memory reclaim path
  scsi/be2iscsi,qla2xxx: convert to alloc_workqueue()
  misc/iwmc3200top: use system_wq instead of dedicated workqueues
  i2o: use alloc_workqueue() instead of create_workqueue()
  acpi: kacpi*_wq don't need WQ_MEM_RECLAIM
  fs/aio: aio_wq isn't used in memory reclaim path
  input/tps6507x-ts: use system_wq instead of dedicated workqueue
  cpufreq: use system_wq instead of dedicated workqueues
  wireless/ipw2x00: use system_wq instead of dedicated workqueues
  arm/omap: use system_wq in mailbox
  workqueue: use WQ_MEM_RECLAIM instead of WQ_RESCUER

arch/arm/plat-omap/mailbox.c

@@ -32,7 +32,6 @@
 
 #include <plat/mailbox.h>
 
-static struct workqueue_struct *mboxd;
 static struct omap_mbox **mboxes;
 
 static int mbox_configured;
@@ -197,7 +196,7 @@ static void __mbox_rx_interrupt(struct omap_mbox *mbox)
 	/* no more messages in the fifo. clear IRQ source. */
 	ack_mbox_irq(mbox, IRQ_RX);
 nomem:
-	queue_work(mboxd, &mbox->rxq->work);
+	schedule_work(&mbox->rxq->work);
 }
 
 static irqreturn_t mbox_interrupt(int irq, void *p)
@@ -307,7 +306,7 @@ static void omap_mbox_fini(struct omap_mbox *mbox)
 	if (!--mbox->use_count) {
 		free_irq(mbox->irq, mbox);
 		tasklet_kill(&mbox->txq->tasklet);
-		flush_work(&mbox->rxq->work);
+	flush_work_sync(&mbox->rxq->work);
 		mbox_queue_free(mbox->txq);
 		mbox_queue_free(mbox->rxq);
 	}
@@ -409,10 +408,6 @@ static int __init omap_mbox_init(void)
 	if (err)
 		return err;
 
-	mboxd = create_workqueue("mboxd");
-	if (!mboxd)
-		return -ENOMEM;
-
 	/* kfifo size sanity check: alignment and minimal size */
 	mbox_kfifo_size = ALIGN(mbox_kfifo_size, sizeof(mbox_msg_t));
 	mbox_kfifo_size = max_t(unsigned int, mbox_kfifo_size,
@@ -424,7 +419,6 @@ subsys_initcall(omap_mbox_init);
 
 static void __exit omap_mbox_exit(void)
 {
-	destroy_workqueue(mboxd);
 	class_unregister(&omap_mbox_class);
 }
 module_exit(omap_mbox_exit);

drivers/acpi/osl.c

@@ -1589,9 +1589,9 @@ acpi_status __init acpi_os_initialize(void)
 
 acpi_status __init acpi_os_initialize1(void)
 {
-	kacpid_wq = create_workqueue("kacpid");
-	kacpi_notify_wq = create_workqueue("kacpi_notify");
-	kacpi_hotplug_wq = create_workqueue("kacpi_hotplug");
+	kacpid_wq = alloc_workqueue("kacpid", 0, 1);
+	kacpi_notify_wq = alloc_workqueue("kacpi_notify", 0, 1);
+	kacpi_hotplug_wq = alloc_workqueue("kacpi_hotplug", 0, 1);
 	BUG_ON(!kacpid_wq);
 	BUG_ON(!kacpi_notify_wq);
 	BUG_ON(!kacpi_hotplug_wq);

drivers/cpufreq/cpufreq_conservative.c

@@ -81,8 +81,6 @@ static unsigned int dbs_enable;	/* number of CPUs using this policy */
  */
 static DEFINE_MUTEX(dbs_mutex);
 
-static struct workqueue_struct	*kconservative_wq;
-
 static struct dbs_tuners {
 	unsigned int sampling_rate;
 	unsigned int sampling_down_factor;
@@ -560,7 +558,7 @@ static void do_dbs_timer(struct work_struct *work)
 
 	dbs_check_cpu(dbs_info);
 
-	queue_delayed_work_on(cpu, kconservative_wq, &dbs_info->work, delay);
+	schedule_delayed_work_on(cpu, &dbs_info->work, delay);
 	mutex_unlock(&dbs_info->timer_mutex);
 }
 
@@ -572,8 +570,7 @@ static inline void dbs_timer_init(struct cpu_dbs_info_s *dbs_info)
 
 	dbs_info->enable = 1;
 	INIT_DELAYED_WORK_DEFERRABLE(&dbs_info->work, do_dbs_timer);
-	queue_delayed_work_on(dbs_info->cpu, kconservative_wq, &dbs_info->work,
-				delay);
+	schedule_delayed_work_on(dbs_info->cpu, &dbs_info->work, delay);
 }
 
 static inline void dbs_timer_exit(struct cpu_dbs_info_s *dbs_info)
@@ -716,25 +713,12 @@ struct cpufreq_governor cpufreq_gov_conservative = {
 
 static int __init cpufreq_gov_dbs_init(void)
 {
-	int err;
-
-	kconservative_wq = create_workqueue("kconservative");
-	if (!kconservative_wq) {
-		printk(KERN_ERR "Creation of kconservative failed\n");
-		return -EFAULT;
-	}
-
-	err = cpufreq_register_governor(&cpufreq_gov_conservative);
-	if (err)
-		destroy_workqueue(kconservative_wq);
-
-	return err;
+	return cpufreq_register_governor(&cpufreq_gov_conservative);
 }
 
 static void __exit cpufreq_gov_dbs_exit(void)
 {
 	cpufreq_unregister_governor(&cpufreq_gov_conservative);
-	destroy_workqueue(kconservative_wq);
 }
 
 

drivers/cpufreq/cpufreq_ondemand.c

@@ -104,8 +104,6 @@ static unsigned int dbs_enable;	/* number of CPUs using this policy */
  */
 static DEFINE_MUTEX(dbs_mutex);
 
-static struct workqueue_struct	*kondemand_wq;
-
 static struct dbs_tuners {
 	unsigned int sampling_rate;
 	unsigned int up_threshold;
@@ -667,7 +665,7 @@ static void do_dbs_timer(struct work_struct *work)
 		__cpufreq_driver_target(dbs_info->cur_policy,
 			dbs_info->freq_lo, CPUFREQ_RELATION_H);
 	}
-	queue_delayed_work_on(cpu, kondemand_wq, &dbs_info->work, delay);
+	schedule_delayed_work_on(cpu, &dbs_info->work, delay);
 	mutex_unlock(&dbs_info->timer_mutex);
 }
 
@@ -681,8 +679,7 @@ static inline void dbs_timer_init(struct cpu_dbs_info_s *dbs_info)
 
 	dbs_info->sample_type = DBS_NORMAL_SAMPLE;
 	INIT_DELAYED_WORK_DEFERRABLE(&dbs_info->work, do_dbs_timer);
-	queue_delayed_work_on(dbs_info->cpu, kondemand_wq, &dbs_info->work,
-		delay);
+	schedule_delayed_work_on(dbs_info->cpu, &dbs_info->work, delay);
 }
 
 static inline void dbs_timer_exit(struct cpu_dbs_info_s *dbs_info)
@@ -814,7 +811,6 @@ static int cpufreq_governor_dbs(struct cpufreq_policy *policy,
 
 static int __init cpufreq_gov_dbs_init(void)
 {
-	int err;
 	cputime64_t wall;
 	u64 idle_time;
 	int cpu = get_cpu();
@@ -838,22 +834,12 @@ static int __init cpufreq_gov_dbs_init(void)
 			MIN_SAMPLING_RATE_RATIO * jiffies_to_usecs(10);
 	}
 
-	kondemand_wq = create_workqueue("kondemand");
-	if (!kondemand_wq) {
-		printk(KERN_ERR "Creation of kondemand failed\n");
-		return -EFAULT;
-	}
-	err = cpufreq_register_governor(&cpufreq_gov_ondemand);
-	if (err)
-		destroy_workqueue(kondemand_wq);
-
-	return err;
+	return cpufreq_register_governor(&cpufreq_gov_ondemand);
 }
 
 static void __exit cpufreq_gov_dbs_exit(void)
 {
 	cpufreq_unregister_governor(&cpufreq_gov_ondemand);
-	destroy_workqueue(kondemand_wq);
 }
 
 

drivers/input/touchscreen/tps6507x-ts.c

@@ -43,7 +43,6 @@ struct tps6507x_ts {
 	struct input_dev	*input_dev;
 	struct device		*dev;
 	char			phys[32];
-	struct workqueue_struct *wq;
 	struct delayed_work	work;
 	unsigned		polling;	/* polling is active */
 	struct ts_event		tc;
@@ -220,8 +219,8 @@ static void tps6507x_ts_handler(struct work_struct *work)
 	poll = 1;
 
 	if (poll) {
-		schd = queue_delayed_work(tsc->wq, &tsc->work,
-					  msecs_to_jiffies(tsc->poll_period));
+		schd = schedule_delayed_work(&tsc->work,
+					msecs_to_jiffies(tsc->poll_period));
 		if (schd)
 			tsc->polling = 1;
 		else {
@@ -303,7 +302,6 @@ static int tps6507x_ts_probe(struct platform_device *pdev)
 	tsc->input_dev = input_dev;
 
 	INIT_DELAYED_WORK(&tsc->work, tps6507x_ts_handler);
-	tsc->wq = create_workqueue("TPS6507x Touchscreen");
 
 	if (init_data) {
 		tsc->poll_period = init_data->poll_period;
@@ -325,8 +323,8 @@ static int tps6507x_ts_probe(struct platform_device *pdev)
 	if (error)
 		goto err2;
 
-	schd = queue_delayed_work(tsc->wq, &tsc->work,
-				  msecs_to_jiffies(tsc->poll_period));
+	schd = schedule_delayed_work(&tsc->work,
+				     msecs_to_jiffies(tsc->poll_period));
 
 	if (schd)
 		tsc->polling = 1;
@@ -341,7 +339,6 @@ static int tps6507x_ts_probe(struct platform_device *pdev)
 
 err2:
 	cancel_delayed_work_sync(&tsc->work);
-	destroy_workqueue(tsc->wq);
 	input_free_device(input_dev);
 err1:
 	kfree(tsc);
@@ -357,7 +354,6 @@ static int __devexit tps6507x_ts_remove(struct platform_device *pdev)
 	struct input_dev *input_dev = tsc->input_dev;
 
 	cancel_delayed_work_sync(&tsc->work);
-	destroy_workqueue(tsc->wq);
 
 	input_unregister_device(input_dev);
 

drivers/md/md.c

@@ -7361,7 +7361,7 @@ static int __init md_init(void)
 {
 	int ret = -ENOMEM;
 
-	md_wq = alloc_workqueue("md", WQ_RESCUER, 0);
+	md_wq = alloc_workqueue("md", WQ_MEM_RECLAIM, 0);
 	if (!md_wq)
 		goto err_wq;
 

drivers/message/i2o/driver.c

@@ -84,7 +84,8 @@ int i2o_driver_register(struct i2o_driver *drv)
 	osm_debug("Register driver %s\n", drv->name);
 
 	if (drv->event) {
-		drv->event_queue = create_workqueue(drv->name);
+		drv->event_queue = alloc_workqueue(drv->name,
+						   WQ_MEM_RECLAIM, 1);
 		if (!drv->event_queue) {
 			osm_err("Could not initialize event queue for driver "
 				"%s\n", drv->name);

drivers/misc/iwmc3200top/iwmc3200top.h

@@ -183,9 +183,7 @@ struct iwmct_priv {
 	u32 barker;
 	struct iwmct_dbg dbg;
 
-	/* drivers work queue */
-	struct workqueue_struct *wq;
-	struct workqueue_struct *bus_rescan_wq;
+	/* drivers work items */
 	struct work_struct bus_rescan_worker;
 	struct work_struct isr_worker;
 

drivers/misc/iwmc3200top/main.c

@@ -89,7 +89,7 @@ static void op_top_message(struct iwmct_priv *priv, struct top_msg *msg)
 	switch (msg->hdr.opcode) {
 	case OP_OPR_ALIVE:
 		LOG_INFO(priv, FW_MSG, "Got ALIVE from device, wake rescan\n");
-		queue_work(priv->bus_rescan_wq, &priv->bus_rescan_worker);
+		schedule_work(&priv->bus_rescan_worker);
 		break;
 	default:
 		LOG_INFO(priv, FW_MSG, "Received msg opcode 0x%X\n",
@@ -360,7 +360,7 @@ static void iwmct_irq(struct sdio_func *func)
 	/* clear the function's interrupt request bit (write 1 to clear) */
 	sdio_writeb(func, 1, IWMC_SDIO_INTR_CLEAR_ADDR, &ret);
 
-	queue_work(priv->wq, &priv->isr_worker);
+	schedule_work(&priv->isr_worker);
 
 	LOG_TRACE(priv, IRQ, "exit iwmct_irq\n");
 
@@ -506,10 +506,6 @@ static int iwmct_probe(struct sdio_func *func,
 	priv->func = func;
 	sdio_set_drvdata(func, priv);
 
-
-	/* create drivers work queue */
-	priv->wq = create_workqueue(DRV_NAME "_wq");
-	priv->bus_rescan_wq = create_workqueue(DRV_NAME "_rescan_wq");
 	INIT_WORK(&priv->bus_rescan_worker, iwmct_rescan_worker);
 	INIT_WORK(&priv->isr_worker, iwmct_irq_read_worker);
 
@@ -604,9 +600,9 @@ static void iwmct_remove(struct sdio_func *func)
 	sdio_release_irq(func);
 	sdio_release_host(func);
 
-	/* Safely destroy osc workqueue */
-	destroy_workqueue(priv->bus_rescan_wq);
-	destroy_workqueue(priv->wq);
+	/* Make sure works are finished */
+	flush_work_sync(&priv->bus_rescan_worker);
+	flush_work_sync(&priv->isr_worker);
 
 	sdio_claim_host(func);
 	sdio_disable_func(func);