X-Git-Url: http://pilppa.org/gitweb/gitweb.cgi?a=blobdiff_plain;f=drivers%2Fmd%2Fmd.c;h=f79efb3592152c76fd286ad30215415aaccdb034;hb=edfaa7c36574f1bf09c65ad602412db9da5f96bf;hp=0dc563d76b393208465e8209470ec982b88c4cbd;hpb=92d15c2ccbb3e31a3fc71ad28fdb55e1319383c0;p=linux-2.6-omap-h63xx.git

diff --git a/drivers/md/md.c b/drivers/md/md.c
index 0dc563d76b3..f79efb35921 100644
--- a/drivers/md/md.c
+++ b/drivers/md/md.c
@@ -1396,9 +1396,9 @@ static int bind_rdev_to_array(mdk_rdev_t * rdev, mddev_t * mddev)
 		goto fail;
 
 	if (rdev->bdev->bd_part)
-		ko = &rdev->bdev->bd_part->kobj;
+		ko = &rdev->bdev->bd_part->dev.kobj;
 	else
-		ko = &rdev->bdev->bd_disk->kobj;
+		ko = &rdev->bdev->bd_disk->dev.kobj;
 	if ((err = sysfs_create_link(&rdev->kobj, ko, "block"))) {
 		kobject_del(&rdev->kobj);
 		goto fail;
@@ -2714,7 +2714,7 @@ action_show(mddev_t *mddev, char *page)
 {
 	char *type = "idle";
 	if (test_bit(MD_RECOVERY_RUNNING, &mddev->recovery) ||
-	    test_bit(MD_RECOVERY_NEEDED, &mddev->recovery)) {
+	    (!mddev->ro && test_bit(MD_RECOVERY_NEEDED, &mddev->recovery))) {
 		if (test_bit(MD_RECOVERY_RESHAPE, &mddev->recovery))
 			type = "reshape";
 		else if (test_bit(MD_RECOVERY_SYNC, &mddev->recovery)) {
@@ -2833,6 +2833,12 @@ sync_max_store(mddev_t *mddev, const char *buf, size_t len)
 static struct md_sysfs_entry md_sync_max =
 __ATTR(sync_speed_max, S_IRUGO|S_IWUSR, sync_max_show, sync_max_store);
 
+static ssize_t
+degraded_show(mddev_t *mddev, char *page)
+{
+	return sprintf(page, "%d\n", mddev->degraded);
+}
+static struct md_sysfs_entry md_degraded = __ATTR_RO(degraded);
 
 static ssize_t
 sync_speed_show(mddev_t *mddev, char *page)
@@ -2976,6 +2982,7 @@ static struct attribute *md_redundancy_attrs[] = {
 	&md_suspend_lo.attr,
 	&md_suspend_hi.attr,
 	&md_bitmap.attr,
+	&md_degraded.attr,
 	NULL,
 };
 static struct attribute_group md_redundancy_group = {
@@ -3047,6 +3054,7 @@ static struct kobject *md_probe(dev_t dev, int *part, void *data)
 	int partitioned = (MAJOR(dev) != MD_MAJOR);
 	int shift = partitioned ? MdpMinorShift : 0;
 	int unit = MINOR(dev) >> shift;
+	int error;
 
 	if (!mddev)
 		return NULL;
@@ -3075,12 +3083,13 @@ static struct kobject *md_probe(dev_t dev, int *part, void *data)
 	add_disk(disk);
 	mddev->gendisk = disk;
 	mutex_unlock(&disks_mutex);
-	mddev->kobj.parent = &disk->kobj;
-	kobject_set_name(&mddev->kobj, "%s", "md");
-	mddev->kobj.ktype = &md_ktype;
-	if (kobject_register(&mddev->kobj))
+	error = kobject_init_and_add(&mddev->kobj, &md_ktype, &disk->dev.kobj,
+				     "%s", "md");
+	if (error)
 		printk(KERN_WARNING "md: cannot register %s/md - name in use\n",
 		       disk->disk_name);
+	else
+		kobject_uevent(&mddev->kobj, KOBJ_ADD);
 	return NULL;
 }
 
@@ -3352,7 +3361,7 @@ static int do_md_run(mddev_t * mddev)
 
 	mddev->changed = 1;
 	md_new_event(mddev);
-	kobject_uevent(&mddev->gendisk->kobj, KOBJ_CHANGE);
+	kobject_uevent(&mddev->gendisk->dev.kobj, KOBJ_CHANGE);
 	return 0;
 }
 
@@ -4710,7 +4719,7 @@ mdk_thread_t *md_register_thread(void (*run) (mddev_t *), mddev_t *mddev,
 
 void md_unregister_thread(mdk_thread_t *thread)
 {
-	dprintk("interrupting MD-thread pid %d\n", thread->tsk->pid);
+	dprintk("interrupting MD-thread pid %d\n", task_pid_nr(thread->tsk));
 
 	kthread_stop(thread->tsk);
 	kfree(thread);
@@ -5438,7 +5447,7 @@ void md_do_sync(mddev_t *mddev)
 		 * about not overloading the IO subsystem. (things like an
 		 * e2fsck being done on the RAID array should execute fast)
 		 */
-		mddev->queue->unplug_fn(mddev->queue);
+		blk_unplug(mddev->queue);
 		cond_resched();
 
 		currspeed = ((unsigned long)(io_sectors-mddev->resync_mark_cnt))/2
@@ -5457,7 +5466,7 @@ void md_do_sync(mddev_t *mddev)
 	 * this also signals 'finished resyncing' to md_stop
 	 */
  out:
-	mddev->queue->unplug_fn(mddev->queue);
+	blk_unplug(mddev->queue);
 
 	wait_event(mddev->recovery_wait, !atomic_read(&mddev->recovery_active));
 
@@ -5770,26 +5779,47 @@ static int __init md_init(void)
  * Searches all registered partitions for autorun RAID arrays
  * at boot time.
  */
-static dev_t detected_devices[128];
-static int dev_cnt;
+
+static LIST_HEAD(all_detected_devices);
+struct detected_devices_node {
+	struct list_head list;
+	dev_t dev;
+};
 
 void md_autodetect_dev(dev_t dev)
 {
-	if (dev_cnt >= 0 && dev_cnt < 127)
-		detected_devices[dev_cnt++] = dev;
+	struct detected_devices_node *node_detected_dev;
+
+	node_detected_dev = kzalloc(sizeof(*node_detected_dev), GFP_KERNEL);
+	if (node_detected_dev) {
+		node_detected_dev->dev = dev;
+		list_add_tail(&node_detected_dev->list, &all_detected_devices);
+	} else {
+		printk(KERN_CRIT "md: md_autodetect_dev: kzalloc failed"
+			", skipping dev(%d,%d)\n", MAJOR(dev), MINOR(dev));
+	}
 }
 
 
 static void autostart_arrays(int part)
 {
 	mdk_rdev_t *rdev;
-	int i;
+	struct detected_devices_node *node_detected_dev;
+	dev_t dev;
+	int i_scanned, i_passed;
 
-	printk(KERN_INFO "md: Autodetecting RAID arrays.\n");
+	i_scanned = 0;
+	i_passed = 0;
 
-	for (i = 0; i < dev_cnt; i++) {
-		dev_t dev = detected_devices[i];
+	printk(KERN_INFO "md: Autodetecting RAID arrays.\n");
 
+	while (!list_empty(&all_detected_devices) && i_scanned < INT_MAX) {
+		i_scanned++;
+		node_detected_dev = list_entry(all_detected_devices.next,
+					struct detected_devices_node, list);
+		list_del(&node_detected_dev->list);
+		dev = node_detected_dev->dev;
+		kfree(node_detected_dev);
 		rdev = md_import_device(dev,0, 90);
 		if (IS_ERR(rdev))
 			continue;
@@ -5799,8 +5829,11 @@ static void autostart_arrays(int part)
 			continue;
 		}
 		list_add(&rdev->same_set, &pending_raid_disks);
+		i_passed++;
 	}
-	dev_cnt = 0;
+
+	printk(KERN_INFO "md: Scanned %d and added %d devices.\n",
+						i_scanned, i_passed);
 
 	autorun_devices(part);
 }