X-Git-Url: http://pilppa.org/gitweb/gitweb.cgi?a=blobdiff_plain;f=drivers%2Fscsi%2Fscsi_sysfs.c;h=2cb962751a7ee76bbbe7f503a41a390cbc3004a6;hb=7686f132653fa3d52d45c3f021215f714094f1ca;hp=b8052d5206cca22f03a782044b9ca5b7d78f605f;hpb=033d974405276c22609c45d50167dd11df20aa82;p=linux-2.6-omap-h63xx.git

diff --git a/drivers/scsi/scsi_sysfs.c b/drivers/scsi/scsi_sysfs.c
index b8052d5206c..2cb962751a7 100644
--- a/drivers/scsi/scsi_sysfs.c
+++ b/drivers/scsi/scsi_sysfs.c
@@ -21,7 +21,7 @@
 #include "scsi_priv.h"
 #include "scsi_logging.h"
 
-static struct {
+static const struct {
 	enum scsi_device_state	value;
 	char			*name;
 } sdev_states[] = {
@@ -48,7 +48,7 @@ const char *scsi_device_state_name(enum scsi_device_state state)
 	return name;
 }
 
-static struct {
+static const struct {
 	enum scsi_host_state	value;
 	char			*name;
 } shost_states[] = {
@@ -57,6 +57,8 @@ static struct {
 	{ SHOST_CANCEL, "cancel" },
 	{ SHOST_DEL, "deleted" },
 	{ SHOST_RECOVERY, "recovery" },
+	{ SHOST_CANCEL_RECOVERY, "cancel/recovery" },
+	{ SHOST_DEL_RECOVERY, "deleted/recovery", },
 };
 const char *scsi_host_state_name(enum scsi_host_state state)
 {
@@ -261,9 +263,40 @@ static int scsi_bus_match(struct device *dev, struct device_driver *gendrv)
 	return (sdp->inq_periph_qual == SCSI_INQ_PQ_CON)? 1: 0;
 }
 
+static int scsi_bus_suspend(struct device * dev, pm_message_t state)
+{
+	struct scsi_device *sdev = to_scsi_device(dev);
+	struct scsi_host_template *sht = sdev->host->hostt;
+	int err;
+
+	err = scsi_device_quiesce(sdev);
+	if (err)
+		return err;
+
+	if (sht->suspend)
+		err = sht->suspend(sdev);
+
+	return err;
+}
+
+static int scsi_bus_resume(struct device * dev)
+{
+	struct scsi_device *sdev = to_scsi_device(dev);
+	struct scsi_host_template *sht = sdev->host->hostt;
+	int err = 0;
+
+	if (sht->resume)
+		err = sht->resume(sdev);
+
+	scsi_device_resume(sdev);
+	return err;
+}
+
 struct bus_type scsi_bus_type = {
         .name		= "scsi",
         .match		= scsi_bus_match,
+	.suspend	= scsi_bus_suspend,
+	.resume		= scsi_bus_resume,
 };
 
 int scsi_sysfs_register(void)
@@ -689,16 +722,19 @@ int scsi_sysfs_add_sdev(struct scsi_device *sdev)
 
 void __scsi_remove_device(struct scsi_device *sdev)
 {
+	struct device *dev = &sdev->sdev_gendev;
+
 	if (scsi_device_set_state(sdev, SDEV_CANCEL) != 0)
 		return;
 
 	class_device_unregister(&sdev->sdev_classdev);
-	device_del(&sdev->sdev_gendev);
+	transport_remove_device(dev);
+	device_del(dev);
 	scsi_device_set_state(sdev, SDEV_DEL);
 	if (sdev->host->hostt->slave_destroy)
 		sdev->host->hostt->slave_destroy(sdev);
-	transport_unregister_device(&sdev->sdev_gendev);
-	put_device(&sdev->sdev_gendev);
+	transport_destroy_device(dev);
+	put_device(dev);
 }
 
 /**
@@ -707,9 +743,11 @@ void __scsi_remove_device(struct scsi_device *sdev)
  **/
 void scsi_remove_device(struct scsi_device *sdev)
 {
-	down(&sdev->host->scan_mutex);
+	struct Scsi_Host *shost = sdev->host;
+
+	mutex_lock(&shost->scan_mutex);
 	__scsi_remove_device(sdev);
-	up(&sdev->host->scan_mutex);
+	mutex_unlock(&shost->scan_mutex);
 }
 EXPORT_SYMBOL(scsi_remove_device);
 
@@ -717,17 +755,20 @@ void __scsi_remove_target(struct scsi_target *starget)
 {
 	struct Scsi_Host *shost = dev_to_shost(starget->dev.parent);
 	unsigned long flags;
-	struct scsi_device *sdev, *tmp;
+	struct scsi_device *sdev;
 
 	spin_lock_irqsave(shost->host_lock, flags);
 	starget->reap_ref++;
-	list_for_each_entry_safe(sdev, tmp, &shost->__devices, siblings) {
+ restart:
+	list_for_each_entry(sdev, &shost->__devices, siblings) {
 		if (sdev->channel != starget->channel ||
-		    sdev->id != starget->id)
+		    sdev->id != starget->id ||
+		    sdev->sdev_state == SDEV_DEL)
 			continue;
 		spin_unlock_irqrestore(shost->host_lock, flags);
 		scsi_remove_device(sdev);
 		spin_lock_irqsave(shost->host_lock, flags);
+		goto restart;
 	}
 	spin_unlock_irqrestore(shost->host_lock, flags);
 	scsi_target_reap(starget);