---

yaml
---
r: 87486
b: refs/heads/master
c: 264e3e8
h: refs/heads/master
v: v3

[refs]

@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 8d8002f642886ae256a3c5d70fe8aff4faf3631a
+refs/heads/master: 264e3e889d86e552b4191d69bb60f4f3b383135a

trunk/drivers/acpi/ec.c

@@ -129,7 +129,6 @@ static struct acpi_ec {
 	struct mutex lock;
 	wait_queue_head_t wait;
 	struct list_head list;
-	atomic_t irq_count;
 	u8 handlers_installed;
 } *boot_ec, *first_ec;
 
@@ -182,8 +181,6 @@ static int acpi_ec_wait(struct acpi_ec *ec, enum ec_event event, int force_poll)
 {
 	int ret = 0;
 
-	atomic_set(&ec->irq_count, 0);
-
 	if (unlikely(event == ACPI_EC_EVENT_OBF_1 &&
 		     test_bit(EC_FLAGS_NO_OBF1_GPE, &ec->flags)))
 		force_poll = 1;
@@ -230,7 +227,6 @@ static int acpi_ec_wait(struct acpi_ec *ec, enum ec_event event, int force_poll)
 		while (time_before(jiffies, delay)) {
 			if (acpi_ec_check_status(ec, event))
 				goto end;
-			msleep(5);
 		}
 	}
 	pr_err(PREFIX "acpi_ec_wait timeout,"
@@ -533,13 +529,6 @@ static u32 acpi_ec_gpe_handler(void *data)
 	struct acpi_ec *ec = data;
 
 	pr_debug(PREFIX "~~~> interrupt\n");
-	atomic_inc(&ec->irq_count);
-	if (atomic_read(&ec->irq_count) > 5) {
-		pr_err(PREFIX "GPE storm detected, disabling EC GPE\n");
-		acpi_disable_gpe(NULL, ec->gpe, ACPI_ISR);
-		clear_bit(EC_FLAGS_GPE_MODE, &ec->flags);
-		return ACPI_INTERRUPT_HANDLED;
-	}
 	clear_bit(EC_FLAGS_WAIT_GPE, &ec->flags);
 	if (test_bit(EC_FLAGS_GPE_MODE, &ec->flags))
 		wake_up(&ec->wait);

trunk/drivers/ide/ide-taskfile.c

@@ -422,6 +422,25 @@ void task_end_request(ide_drive_t *drive, struct request *rq, u8 stat)
 		ide_end_request(drive, 1, rq->nr_sectors);
 }
 
+/*
+ * We got an interrupt on a task_in case, but no errors and no DRQ.
+ *
+ * It might be a spurious irq (shared irq), but it might be a
+ * command that had no output.
+ */
+static ide_startstop_t task_in_unexpected(ide_drive_t *drive, struct request *rq, u8 stat)
+{
+	/* Command all done? */
+	if (OK_STAT(stat, READY_STAT, BUSY_STAT)) {
+		task_end_request(drive, rq, stat);
+		return ide_stopped;
+	}
+
+	/* Assume it was a spurious irq */
+	ide_set_handler(drive, &task_in_intr, WAIT_WORSTCASE, NULL);
+	return ide_started;
+}
+
 /*
  * Handler for command with PIO data-in phase (Read/Read Multiple).
  */
@@ -431,18 +450,17 @@ static ide_startstop_t task_in_intr(ide_drive_t *drive)
 	struct request *rq = HWGROUP(drive)->rq;
 	u8 stat = ide_read_status(drive);
 
-	/* new way for dealing with premature shared PCI interrupts */
-	if (!OK_STAT(stat, DRQ_STAT, BAD_R_STAT)) {
-		if (stat & (ERR_STAT | DRQ_STAT))
-			return task_error(drive, rq, __FUNCTION__, stat);
-		/* No data yet, so wait for another IRQ. */
-		ide_set_handler(drive, &task_in_intr, WAIT_WORSTCASE, NULL);
-		return ide_started;
-	}
+	/* Error? */
+	if (stat & ERR_STAT)
+		return task_error(drive, rq, __FUNCTION__, stat);
+
+	/* Didn't want any data? Odd. */
+	if (!(stat & DRQ_STAT))
+		return task_in_unexpected(drive, rq, stat);
 
 	ide_pio_datablock(drive, rq, 0);
 
-	/* If it was the last datablock check status and finish transfer. */
+	/* Are we done? Check status and finish transfer. */
 	if (!hwif->nleft) {
 		stat = wait_drive_not_busy(drive);
 		if (!OK_STAT(stat, 0, BAD_STAT))

trunk/include/linux/sched.h

@@ -929,6 +929,9 @@ struct sched_entity {
 	u64			vruntime;
 	u64			prev_sum_exec_runtime;
 
+	u64			last_wakeup;
+	u64			avg_overlap;
+
 #ifdef CONFIG_SCHEDSTATS
 	u64			wait_start;
 	u64			wait_max;

trunk/include/linux/topology.h

@@ -138,7 +138,6 @@
 				| SD_BALANCE_FORK	\
 				| SD_BALANCE_EXEC	\
 				| SD_WAKE_AFFINE	\
-				| SD_WAKE_IDLE		\
 				| SD_SHARE_PKG_RESOURCES\
 				| BALANCE_FOR_MC_POWER,	\
 	.last_balance		= jiffies,		\

trunk/kernel/sched.c

@@ -1396,6 +1396,12 @@ task_hot(struct task_struct *p, u64 now, struct sched_domain *sd)
 {
 	s64 delta;
 
+	/*
+	 * Buddy candidates are cache hot:
+	 */
+	if (&p->se == cfs_rq_of(&p->se)->next)
+		return 1;
+
 	if (p->sched_class != &fair_sched_class)
 		return 0;
 
@@ -1855,10 +1861,11 @@ static int try_to_wake_up(struct task_struct *p, unsigned int state, int sync)
 		schedstat_inc(p, se.nr_wakeups_remote);
 	update_rq_clock(rq);
 	activate_task(rq, p, 1);
-	check_preempt_curr(rq, p);
 	success = 1;
 
 out_running:
+	check_preempt_curr(rq, p);
+
 	p->state = TASK_RUNNING;
 #ifdef CONFIG_SMP
 	if (p->sched_class->task_wake_up)
@@ -1892,6 +1899,8 @@ static void __sched_fork(struct task_struct *p)
 	p->se.exec_start		= 0;
 	p->se.sum_exec_runtime		= 0;
 	p->se.prev_sum_exec_runtime	= 0;
+	p->se.last_wakeup		= 0;
+	p->se.avg_overlap		= 0;
 
 #ifdef CONFIG_SCHEDSTATS
 	p->se.wait_start		= 0;

trunk/kernel/sched_debug.c

@@ -288,6 +288,7 @@ void proc_sched_show_task(struct task_struct *p, struct seq_file *m)
 	PN(se.exec_start);
 	PN(se.vruntime);
 	PN(se.sum_exec_runtime);
+	PN(se.avg_overlap);
 
 	nr_switches = p->nvcsw + p->nivcsw;