Merge branch 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull timer updates from Thomas Gleixner:
 "Yet another big pile of changes:

   - More year 2038 work from Arnd slowly reaching the point where we
     need to think about the syscalls themself.

   - A new timer function which allows to conditionally (re)arm a timer
     only when it's either not running or the new expiry time is sooner
     than the armed expiry time. This allows to use a single timer for
     multiple timeout requirements w/o caring about the first expiry
     time at the call site.

   - A new NMI safe accessor to clock real time for the printk timestamp
     work. Can be used by tracing, perf as well if required.

   - A large number of timer setup conversions from Kees which got
     collected here because either maintainers requested so or they
     simply got ignored. As Kees pointed out already there are a few
     trivial merge conflicts and some redundant commits which was
     unavoidable due to the size of this conversion effort.

   - Avoid a redundant iteration in the timer wheel softirq processing.

   - Provide a mechanism to treat RTC implementations depending on their
     hardware properties, i.e. don't inflict the write at the 0.5
     seconds boundary which originates from the PC CMOS RTC to all RTCs.
     No functional change as drivers need to be updated separately.

   - The usual small updates to core code clocksource drivers. Nothing
     really exciting"

* 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (111 commits)
  timers: Add a function to start/reduce a timer
  pstore: Use ktime_get_real_fast_ns() instead of __getnstimeofday()
  timer: Prepare to change all DEFINE_TIMER() callbacks
  netfilter: ipvs: Convert timers to use timer_setup()
  scsi: qla2xxx: Convert timers to use timer_setup()
  block/aoe: discover_timer: Convert timers to use timer_setup()
  ide: Convert timers to use timer_setup()
  drbd: Convert timers to use timer_setup()
  mailbox: Convert timers to use timer_setup()
  crypto: Convert timers to use timer_setup()
  drivers/pcmcia: omap1: Fix error in automated timer conversion
  ARM: footbridge: Fix typo in timer conversion
  drivers/sgi-xp: Convert timers to use timer_setup()
  drivers/pcmcia: Convert timers to use timer_setup()
  drivers/memstick: Convert timers to use timer_setup()
  drivers/macintosh: Convert timers to use timer_setup()
  hwrng/xgene-rng: Convert timers to use timer_setup()
  auxdisplay: Convert timers to use timer_setup()
  sparc/led: Convert timers to use timer_setup()
  mips: ip22/32: Convert timers to use timer_setup()
  ...

66 files changed, 298 insertions, 399 deletions

diff --git a/drivers/scsi/aic7xxx/aic79xx.h b/drivers/scsi/aic7xxx/aic79xx.h
index d47b527b25dd..31f2bb9d7146 100644
--- a/drivers/scsi/aic7xxx/aic79xx.h
+++ b/drivers/scsi/aic7xxx/aic79xx.h
@@ -1046,8 +1046,6 @@ typedef enum {
 
 typedef uint8_t ahd_mode_state;
 
-typedef void ahd_callback_t (void *);
-
 struct ahd_completion
 {
 	uint16_t	tag;
@@ -1122,8 +1120,7 @@ struct ahd_softc {
 	/*
 	 * Timer handles for timer driven callbacks.
 	 */
-	ahd_timer_t		  reset_timer;
-	ahd_timer_t		  stat_timer;
+	struct timer_list	stat_timer;
 
 	/*
 	 * Statistics.
diff --git a/drivers/scsi/aic7xxx/aic79xx_core.c b/drivers/scsi/aic7xxx/aic79xx_core.c
index 95d8f25cbcca..b560f396ee99 100644
--- a/drivers/scsi/aic7xxx/aic79xx_core.c
+++ b/drivers/scsi/aic7xxx/aic79xx_core.c
@@ -207,7 +207,7 @@ static void		ahd_add_scb_to_free_list(struct ahd_softc *ahd,
 static u_int		ahd_rem_wscb(struct ahd_softc *ahd, u_int scbid,
 				     u_int prev, u_int next, u_int tid);
 static void		ahd_reset_current_bus(struct ahd_softc *ahd);
-static ahd_callback_t	ahd_stat_timer;
+static void		ahd_stat_timer(struct timer_list *t);
 #ifdef AHD_DUMP_SEQ
 static void		ahd_dumpseq(struct ahd_softc *ahd);
 #endif
@@ -6104,8 +6104,7 @@ ahd_alloc(void *platform_arg, char *name)
 	ahd->bugs = AHD_BUGNONE;
 	ahd->flags = AHD_SPCHK_ENB_A|AHD_RESET_BUS_A|AHD_TERM_ENB_A
 		   | AHD_EXTENDED_TRANS_A|AHD_STPWLEVEL_A;
-	ahd_timer_init(&ahd->reset_timer);
-	ahd_timer_init(&ahd->stat_timer);
+	timer_setup(&ahd->stat_timer, ahd_stat_timer, 0);
 	ahd->int_coalescing_timer = AHD_INT_COALESCING_TIMER_DEFAULT;
 	ahd->int_coalescing_maxcmds = AHD_INT_COALESCING_MAXCMDS_DEFAULT;
 	ahd->int_coalescing_mincmds = AHD_INT_COALESCING_MINCMDS_DEFAULT;
@@ -6235,8 +6234,7 @@ ahd_shutdown(void *arg)
 	/*
 	 * Stop periodic timer callbacks.
 	 */
-	ahd_timer_stop(&ahd->reset_timer);
-	ahd_timer_stop(&ahd->stat_timer);
+	del_timer_sync(&ahd->stat_timer);
 
 	/* This will reset most registers to 0, but not all */
 	ahd_reset(ahd, /*reinit*/FALSE);
@@ -7039,20 +7037,11 @@ static const char *termstat_strings[] = {
 };
 
 /***************************** Timer Facilities *******************************/
-#define ahd_timer_init init_timer
-#define ahd_timer_stop del_timer_sync
-typedef void ahd_linux_callback_t (u_long);
-
 static void
-ahd_timer_reset(ahd_timer_t *timer, int usec, ahd_callback_t *func, void *arg)
+ahd_timer_reset(struct timer_list *timer, int usec)
 {
-	struct ahd_softc *ahd;
-
-	ahd = (struct ahd_softc *)arg;
 	del_timer(timer);
-	timer->data = (u_long)arg;
 	timer->expires = jiffies + (usec * HZ)/1000000;
-	timer->function = (ahd_linux_callback_t*)func;
 	add_timer(timer);
 }
 
@@ -7279,8 +7268,7 @@ ahd_init(struct ahd_softc *ahd)
 	}
 init_done:
 	ahd_restart(ahd);
-	ahd_timer_reset(&ahd->stat_timer, AHD_STAT_UPDATE_US,
-			ahd_stat_timer, ahd);
+	ahd_timer_reset(&ahd->stat_timer, AHD_STAT_UPDATE_US);
 	return (0);
 }
 
@@ -8878,9 +8866,9 @@ ahd_reset_channel(struct ahd_softc *ahd, char channel, int initiate_reset)
 
 /**************************** Statistics Processing ***************************/
 static void
-ahd_stat_timer(void *arg)
+ahd_stat_timer(struct timer_list *t)
 {
-	struct	ahd_softc *ahd = arg;
+	struct	ahd_softc *ahd = from_timer(ahd, t, stat_timer);
 	u_long	s;
 	int	enint_coal;
 	
@@ -8907,8 +8895,7 @@ ahd_stat_timer(void *arg)
 	ahd->cmdcmplt_bucket = (ahd->cmdcmplt_bucket+1) & (AHD_STAT_BUCKETS-1);
 	ahd->cmdcmplt_total -= ahd->cmdcmplt_counts[ahd->cmdcmplt_bucket];
 	ahd->cmdcmplt_counts[ahd->cmdcmplt_bucket] = 0;
-	ahd_timer_reset(&ahd->stat_timer, AHD_STAT_UPDATE_US,
-			ahd_stat_timer, ahd);
+	ahd_timer_reset(&ahd->stat_timer, AHD_STAT_UPDATE_US);
 	ahd_unlock(ahd, &s);
 }
 
diff --git a/drivers/scsi/aic7xxx/aic79xx_osm.h b/drivers/scsi/aic7xxx/aic79xx_osm.h
index 728193a42e6e..8a8b7ae7aed3 100644
--- a/drivers/scsi/aic7xxx/aic79xx_osm.h
+++ b/drivers/scsi/aic7xxx/aic79xx_osm.h
@@ -203,9 +203,6 @@ int	ahd_dmamap_unload(struct ahd_softc *, bus_dma_tag_t, bus_dmamap_t);
  */
 #define ahd_dmamap_sync(ahd, dma_tag, dmamap, offset, len, op)
 
-/************************** Timer DataStructures ******************************/
-typedef struct timer_list ahd_timer_t;
-
 /********************************** Includes **********************************/
 #ifdef CONFIG_AIC79XX_REG_PRETTY_PRINT
 #define AIC_DEBUG_REGISTERS 1
@@ -214,10 +211,6 @@ typedef struct timer_list ahd_timer_t;
 #endif
 #include "aic79xx.h"
 
-/***************************** Timer Facilities *******************************/
-#define ahd_timer_init init_timer
-#define ahd_timer_stop del_timer_sync
-
 /***************************** SMP support ************************************/
 #include <linux/spinlock.h>
 
diff --git a/drivers/scsi/aic94xx/aic94xx_hwi.c b/drivers/scsi/aic94xx/aic94xx_hwi.c
index f2671a8fa7e3..7cbc7213b2b2 100644
--- a/drivers/scsi/aic94xx/aic94xx_hwi.c
+++ b/drivers/scsi/aic94xx/aic94xx_hwi.c
@@ -1178,8 +1178,7 @@ static void asd_start_scb_timers(struct list_head *list)
 	struct asd_ascb *ascb;
 	list_for_each_entry(ascb, list, list) {
 		if (!ascb->uldd_timer) {
-			ascb->timer.data = (unsigned long) ascb;
-			ascb->timer.function = asd_ascb_timedout;
+			ascb->timer.function = (TIMER_FUNC_TYPE)asd_ascb_timedout;
 			ascb->timer.expires = jiffies + AIC94XX_SCB_TIMEOUT;
 			add_timer(&ascb->timer);
 		}
diff --git a/drivers/scsi/aic94xx/aic94xx_hwi.h b/drivers/scsi/aic94xx/aic94xx_hwi.h
index 8c1c28239e93..8f147e720cfd 100644
--- a/drivers/scsi/aic94xx/aic94xx_hwi.h
+++ b/drivers/scsi/aic94xx/aic94xx_hwi.h
@@ -291,8 +291,7 @@ static inline void asd_init_ascb(struct asd_ha_struct *asd_ha,
 	INIT_LIST_HEAD(&ascb->list);
 	ascb->scb = ascb->dma_scb.vaddr;
 	ascb->ha = asd_ha;
-	ascb->timer.function = NULL;
-	init_timer(&ascb->timer);
+	timer_setup(&ascb->timer, NULL, 0);
 	ascb->tc_index = -1;
 }
 
@@ -392,7 +391,7 @@ void asd_control_led(struct asd_ha_struct *asd_ha, int phy_id, int op);
 void asd_turn_led(struct asd_ha_struct *asd_ha, int phy_id, int op);
 int  asd_enable_phys(struct asd_ha_struct *asd_ha, const u8 phy_mask);
 
-void asd_ascb_timedout(unsigned long data);
+void asd_ascb_timedout(struct timer_list *t);
 int  asd_chip_hardrst(struct asd_ha_struct *asd_ha);
 
 #endif
diff --git a/drivers/scsi/aic94xx/aic94xx_scb.c b/drivers/scsi/aic94xx/aic94xx_scb.c
index fdac7c2fef37..22873ce8bbfa 100644
--- a/drivers/scsi/aic94xx/aic94xx_scb.c
+++ b/drivers/scsi/aic94xx/aic94xx_scb.c
@@ -866,12 +866,12 @@ void asd_build_initiate_link_adm_task(struct asd_ascb *ascb, int phy_id,
  * Upper layers can implement their own timeout function, say to free
  * resources they have with this SCB, and then call this one at the
  * end of their timeout function.  To do this, one should initialize
- * the ascb->timer.{function, data, expires} prior to calling the post
+ * the ascb->timer.{function, expires} prior to calling the post
  * function. The timer is started by the post function.
  */
-void asd_ascb_timedout(unsigned long data)
+void asd_ascb_timedout(struct timer_list *t)
 {
-	struct asd_ascb *ascb = (void *) data;
+	struct asd_ascb *ascb = from_timer(ascb, t, timer);
 	struct asd_seq_data *seq = &ascb->ha->seq;
 	unsigned long flags;
 
diff --git a/drivers/scsi/aic94xx/aic94xx_tmf.c b/drivers/scsi/aic94xx/aic94xx_tmf.c
index d4c35df3d4ae..4637119c09d8 100644
--- a/drivers/scsi/aic94xx/aic94xx_tmf.c
+++ b/drivers/scsi/aic94xx/aic94xx_tmf.c
@@ -35,15 +35,14 @@
 static int asd_enqueue_internal(struct asd_ascb *ascb,
 		void (*tasklet_complete)(struct asd_ascb *,
 					 struct done_list_struct *),
-				void (*timed_out)(unsigned long))
+				void (*timed_out)(struct timer_list *t))
 {
 	int res;
 
 	ascb->tasklet_complete = tasklet_complete;
 	ascb->uldd_timer = 1;
 
-	ascb->timer.data = (unsigned long) ascb;
-	ascb->timer.function = timed_out;
+	ascb->timer.function = (TIMER_FUNC_TYPE)timed_out;
 	ascb->timer.expires = jiffies + AIC94XX_SCB_TIMEOUT;
 
 	add_timer(&ascb->timer);
@@ -87,9 +86,9 @@ static void asd_clear_nexus_tasklet_complete(struct asd_ascb *ascb,
 	asd_ascb_free(ascb);
 }
 
-static void asd_clear_nexus_timedout(unsigned long data)
+static void asd_clear_nexus_timedout(struct timer_list *t)
 {
-	struct asd_ascb *ascb = (void *)data;
+	struct asd_ascb *ascb = from_timer(ascb, t, timer);
 	struct tasklet_completion_status *tcs = ascb->uldd_task;
 
 	ASD_DPRINTK("%s: here\n", __func__);
@@ -261,9 +260,9 @@ static int asd_clear_nexus_index(struct sas_task *task)
 
 /* ---------- TMFs ---------- */
 
-static void asd_tmf_timedout(unsigned long data)
+static void asd_tmf_timedout(struct timer_list *t)
 {
-	struct asd_ascb *ascb = (void *) data;
+	struct asd_ascb *ascb = from_timer(ascb, t, timer);
 	struct tasklet_completion_status *tcs = ascb->uldd_task;
 
 	ASD_DPRINTK("tmf timed out\n");
diff --git a/drivers/scsi/be2iscsi/be_main.c b/drivers/scsi/be2iscsi/be_main.c
index b4542e7e2ad5..d8bd6f2c9c83 100644
--- a/drivers/scsi/be2iscsi/be_main.c
+++ b/drivers/scsi/be2iscsi/be_main.c
@@ -5230,12 +5230,11 @@ static void beiscsi_eqd_update_work(struct work_struct *work)
 			      msecs_to_jiffies(BEISCSI_EQD_UPDATE_INTERVAL));
 }
 
-static void beiscsi_hw_tpe_check(unsigned long ptr)
+static void beiscsi_hw_tpe_check(struct timer_list *t)
 {
-	struct beiscsi_hba *phba;
+	struct beiscsi_hba *phba = from_timer(phba, t, hw_check);
 	u32 wait;
 
-	phba = (struct beiscsi_hba *)ptr;
 	/* if not TPE, do nothing */
 	if (!beiscsi_detect_tpe(phba))
 		return;
@@ -5248,11 +5247,10 @@ static void beiscsi_hw_tpe_check(unsigned long ptr)
 			   msecs_to_jiffies(wait));
 }
 
-static void beiscsi_hw_health_check(unsigned long ptr)
+static void beiscsi_hw_health_check(struct timer_list *t)
 {
-	struct beiscsi_hba *phba;
+	struct beiscsi_hba *phba = from_timer(phba, t, hw_check);
 
-	phba = (struct beiscsi_hba *)ptr;
 	beiscsi_detect_ue(phba);
 	if (beiscsi_detect_ue(phba)) {
 		__beiscsi_log(phba, KERN_ERR,
@@ -5264,7 +5262,7 @@ static void beiscsi_hw_health_check(unsigned long ptr)
 		if (!test_bit(BEISCSI_HBA_UER_SUPP, &phba->state))
 			return;
 		/* modify this timer to check TPE */
-		phba->hw_check.function = beiscsi_hw_tpe_check;
+		phba->hw_check.function = (TIMER_FUNC_TYPE)beiscsi_hw_tpe_check;
 	}
 
 	mod_timer(&phba->hw_check,
@@ -5351,7 +5349,7 @@ static int beiscsi_enable_port(struct beiscsi_hba *phba)
 	 * Timer function gets modified for TPE detection.
 	 * Always reinit to do health check first.
 	 */
-	phba->hw_check.function = beiscsi_hw_health_check;
+	phba->hw_check.function = (TIMER_FUNC_TYPE)beiscsi_hw_health_check;
 	mod_timer(&phba->hw_check,
 		  jiffies + msecs_to_jiffies(BEISCSI_UE_DETECT_INTERVAL));
 	return 0;
@@ -5708,9 +5706,7 @@ static int beiscsi_dev_probe(struct pci_dev *pcidev,
 	 * Start UE detection here. UE before this will cause stall in probe
 	 * and eventually fail the probe.
 	 */
-	init_timer(&phba->hw_check);
-	phba->hw_check.function = beiscsi_hw_health_check;
-	phba->hw_check.data = (unsigned long)phba;
+	timer_setup(&phba->hw_check, beiscsi_hw_health_check, 0);
 	mod_timer(&phba->hw_check,
 		  jiffies + msecs_to_jiffies(BEISCSI_UE_DETECT_INTERVAL));
 	beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_INIT,
diff --git a/drivers/scsi/bnx2fc/bnx2fc_fcoe.c b/drivers/scsi/bnx2fc/bnx2fc_fcoe.c
index 6844ba361616..e6b9de7d41ac 100644
--- a/drivers/scsi/bnx2fc/bnx2fc_fcoe.c
+++ b/drivers/scsi/bnx2fc/bnx2fc_fcoe.c
@@ -823,7 +823,7 @@ static int bnx2fc_net_config(struct fc_lport *lport, struct net_device *netdev)
 
 	skb_queue_head_init(&port->fcoe_pending_queue);
 	port->fcoe_pending_queue_active = 0;
-	setup_timer(&port->timer, fcoe_queue_timer, (unsigned long) lport);
+	timer_setup(&port->timer, fcoe_queue_timer, 0);
 
 	fcoe_link_speed_update(lport);
 
@@ -845,9 +845,9 @@ static int bnx2fc_net_config(struct fc_lport *lport, struct net_device *netdev)
 	return 0;
 }
 
-static void bnx2fc_destroy_timer(unsigned long data)
+static void bnx2fc_destroy_timer(struct timer_list *t)
 {
-	struct bnx2fc_hba *hba = (struct bnx2fc_hba *)data;
+	struct bnx2fc_hba *hba = from_timer(hba, t, destroy_timer);
 
 	printk(KERN_ERR PFX "ERROR:bnx2fc_destroy_timer - "
 	       "Destroy compl not received!!\n");
@@ -1946,11 +1946,10 @@ static void bnx2fc_fw_destroy(struct bnx2fc_hba *hba)
 {
 	if (test_and_clear_bit(BNX2FC_FLAG_FW_INIT_DONE, &hba->flags)) {
 		if (bnx2fc_send_fw_fcoe_destroy_msg(hba) == 0) {
-			init_timer(&hba->destroy_timer);
+			timer_setup(&hba->destroy_timer, bnx2fc_destroy_timer,
+				    0);
 			hba->destroy_timer.expires = BNX2FC_FW_TIMEOUT +
 								jiffies;
-			hba->destroy_timer.function = bnx2fc_destroy_timer;
-			hba->destroy_timer.data = (unsigned long)hba;
 			add_timer(&hba->destroy_timer);
 			wait_event_interruptible(hba->destroy_wait,
 					test_bit(BNX2FC_FLAG_DESTROY_CMPL,
diff --git a/drivers/scsi/bnx2i/bnx2i.h b/drivers/scsi/bnx2i/bnx2i.h
index 89ef1a1678d1..663a63d4dae4 100644
--- a/drivers/scsi/bnx2i/bnx2i.h
+++ b/drivers/scsi/bnx2i/bnx2i.h
@@ -858,7 +858,7 @@ extern int bnx2i_alloc_qp_resc(struct bnx2i_hba *hba,
 			       struct bnx2i_endpoint *ep);
 extern void bnx2i_free_qp_resc(struct bnx2i_hba *hba,
 			       struct bnx2i_endpoint *ep);
-extern void bnx2i_ep_ofld_timer(unsigned long data);
+extern void bnx2i_ep_ofld_timer(struct timer_list *t);
 extern struct bnx2i_endpoint *bnx2i_find_ep_in_ofld_list(
 		struct bnx2i_hba *hba, u32 iscsi_cid);
 extern struct bnx2i_endpoint *bnx2i_find_ep_in_destroy_list(
diff --git a/drivers/scsi/bnx2i/bnx2i_hwi.c b/drivers/scsi/bnx2i/bnx2i_hwi.c
index 42921dbba927..61a93994d5ed 100644
--- a/drivers/scsi/bnx2i/bnx2i_hwi.c
+++ b/drivers/scsi/bnx2i/bnx2i_hwi.c
@@ -698,9 +698,9 @@ void bnx2i_update_iscsi_conn(struct iscsi_conn *conn)
  *
  * routine to handle connection offload/destroy request timeout
  */
-void bnx2i_ep_ofld_timer(unsigned long data)
+void bnx2i_ep_ofld_timer(struct timer_list *t)
 {
-	struct bnx2i_endpoint *ep = (struct bnx2i_endpoint *) data;
+	struct bnx2i_endpoint *ep = from_timer(ep, t, ofld_timer);
 
 	if (ep->state == EP_STATE_OFLD_START) {
 		printk(KERN_ALERT "ofld_timer: CONN_OFLD timeout\n");
diff --git a/drivers/scsi/bnx2i/bnx2i_iscsi.c b/drivers/scsi/bnx2i/bnx2i_iscsi.c
index 03c104b47f31..de0a507577ef 100644
--- a/drivers/scsi/bnx2i/bnx2i_iscsi.c
+++ b/drivers/scsi/bnx2i/bnx2i_iscsi.c
@@ -1611,9 +1611,8 @@ static int bnx2i_conn_start(struct iscsi_cls_conn *cls_conn)
 	 * this should normally not sleep for a long time so it should
 	 * not disrupt the caller.
 	 */
+	timer_setup(&bnx2i_conn->ep->ofld_timer, bnx2i_ep_ofld_timer, 0);
 	bnx2i_conn->ep->ofld_timer.expires = 1 * HZ + jiffies;
-	bnx2i_conn->ep->ofld_timer.function = bnx2i_ep_ofld_timer;
-	bnx2i_conn->ep->ofld_timer.data = (unsigned long) bnx2i_conn->ep;
 	add_timer(&bnx2i_conn->ep->ofld_timer);
 	/* update iSCSI context for this conn, wait for CNIC to complete */
 	wait_event_interruptible(bnx2i_conn->ep->ofld_wait,
@@ -1729,10 +1728,8 @@ static int bnx2i_tear_down_conn(struct bnx2i_hba *hba,
 	}
 
 	ep->state = EP_STATE_CLEANUP_START;
-	init_timer(&ep->ofld_timer);
+	timer_setup(&ep->ofld_timer, bnx2i_ep_ofld_timer, 0);
 	ep->ofld_timer.expires = hba->conn_ctx_destroy_tmo + jiffies;
-	ep->ofld_timer.function = bnx2i_ep_ofld_timer;
-	ep->ofld_timer.data = (unsigned long) ep;
 	add_timer(&ep->ofld_timer);
 
 	bnx2i_ep_destroy_list_add(hba, ep);
@@ -1835,10 +1832,8 @@ static struct iscsi_endpoint *bnx2i_ep_connect(struct Scsi_Host *shost,
 	bnx2i_ep->state = EP_STATE_OFLD_START;
 	bnx2i_ep_ofld_list_add(hba, bnx2i_ep);