1 files changed, 74 insertions, 48 deletions

diff --git a/drivers/scsi/sd.c b/drivers/scsi/sd.c
index c9e1242eaf2..d57566b8be0 100644
--- a/drivers/scsi/sd.c
+++ b/drivers/scsi/sd.c
@@ -48,6 +48,7 @@
 #include <linux/delay.h>
 #include <linux/mutex.h>
 #include <linux/string_helpers.h>
+#include <linux/async.h>
 #include <asm/uaccess.h>
 
 #include <scsi/scsi.h>
@@ -757,7 +758,7 @@ static int sd_ioctl(struct block_device *bdev, fmode_t mode,
 	 * access to the device is prohibited.
 	 */
 	error = scsi_nonblockable_ioctl(sdp, cmd, p,
-					(mode & FMODE_NDELAY_NOW) != 0);
+					(mode & FMODE_NDELAY) != 0);
 	if (!scsi_block_when_processing_errors(sdp) || !error)
 		return error;
 
@@ -884,7 +885,7 @@ static int sd_sync_cache(struct scsi_disk *sdkp)
 		 * flush everything.
 		 */
 		res = scsi_execute_req(sdp, cmd, DMA_NONE, NULL, 0, &sshdr,
-				       SD_TIMEOUT, SD_MAX_RETRIES);
+				       SD_TIMEOUT, SD_MAX_RETRIES, NULL);
 		if (res == 0)
 			break;
 	}
@@ -1134,7 +1135,7 @@ sd_spinup_disk(struct scsi_disk *sdkp)
 			the_result = scsi_execute_req(sdkp->device, cmd,
 						      DMA_NONE, NULL, 0,
 						      &sshdr, SD_TIMEOUT,
-						      SD_MAX_RETRIES);
+						      SD_MAX_RETRIES, NULL);
 
 			/*
 			 * If the drive has indicated to us that it
@@ -1192,7 +1193,8 @@ sd_spinup_disk(struct scsi_disk *sdkp)
 					cmd[4] |= 1 << 4;
 				scsi_execute_req(sdkp->device, cmd, DMA_NONE,
 						 NULL, 0, &sshdr,
-						 SD_TIMEOUT, SD_MAX_RETRIES);
+						 SD_TIMEOUT, SD_MAX_RETRIES,
+						 NULL);
 				spintime_expire = jiffies + 100 * HZ;
 				spintime = 1;
 			}
@@ -1306,7 +1308,7 @@ repeat:
 		
 		the_result = scsi_execute_req(sdp, cmd, DMA_FROM_DEVICE,
 					      buffer, longrc ? 13 : 8, &sshdr,
-					      SD_TIMEOUT, SD_MAX_RETRIES);
+					      SD_TIMEOUT, SD_MAX_RETRIES, NULL);
 
 		if (media_not_present(sdkp, &sshdr))
 			return;
@@ -1801,6 +1803,71 @@ static int sd_format_disk_name(char *prefix, int index, char *buf, int buflen)
 	return 0;
 }
 
+/*
+ * The asynchronous part of sd_probe
+ */
+static void sd_probe_async(void *data, async_cookie_t cookie)
+{
+	struct scsi_disk *sdkp = data;
+	struct scsi_device *sdp;
+	struct gendisk *gd;
+	u32 index;
+	struct device *dev;
+
+	sdp = sdkp->device;
+	gd = sdkp->disk;
+	index = sdkp->index;
+	dev = &sdp->sdev_gendev;
+
+	if (!sdp->request_queue->rq_timeout) {
+		if (sdp->type != TYPE_MOD)
+			blk_queue_rq_timeout(sdp->request_queue, SD_TIMEOUT);
+		else
+			blk_queue_rq_timeout(sdp->request_queue,
+					     SD_MOD_TIMEOUT);
+	}
+
+	device_initialize(&sdkp->dev);
+	sdkp->dev.parent = &sdp->sdev_gendev;
+	sdkp->dev.class = &sd_disk_class;
+	dev_set_name(&sdkp->dev, dev_name(&sdp->sdev_gendev));
+
+	if (device_add(&sdkp->dev))
+		goto out_free_index;
+
+	get_device(&sdp->sdev_gendev);
+
+	if (index < SD_MAX_DISKS) {
+		gd->major = sd_major((index & 0xf0) >> 4);
+		gd->first_minor = ((index & 0xf) << 4) | (index & 0xfff00);
+		gd->minors = SD_MINORS;
+	}
+	gd->fops = &sd_fops;
+	gd->private_data = &sdkp->driver;
+	gd->queue = sdkp->device->request_queue;
+
+	sd_revalidate_disk(gd);
+
+	blk_queue_prep_rq(sdp->request_queue, sd_prep_fn);
+
+	gd->driverfs_dev = &sdp->sdev_gendev;
+	gd->flags = GENHD_FL_EXT_DEVT | GENHD_FL_DRIVERFS;
+	if (sdp->removable)
+		gd->flags |= GENHD_FL_REMOVABLE;
+
+	dev_set_drvdata(dev, sdkp);
+	add_disk(gd);
+	sd_dif_config_host(sdkp);
+
+	sd_printk(KERN_NOTICE, sdkp, "Attached SCSI %sdisk\n",
+		  sdp->removable ? "removable " : "");
+
+	return;
+
+ out_free_index:
+	ida_remove(&sd_index_ida, index);
+}
+
 /**
  *	sd_probe - called during driver initialization and whenever a
  *	new scsi device is attached to the system. It is called once
@@ -1864,48 +1931,7 @@ static int sd_probe(struct device *dev)
 	sdkp->openers = 0;
 	sdkp->previous_state = 1;
 
-	if (!sdp->request_queue->rq_timeout) {
-		if (sdp->type != TYPE_MOD)
-			blk_queue_rq_timeout(sdp->request_queue, SD_TIMEOUT);
-		else
-			blk_queue_rq_timeout(sdp->request_queue,
-					     SD_MOD_TIMEOUT);
-	}
-
-	device_initialize(&sdkp->dev);
-	sdkp->dev.parent = &sdp->sdev_gendev;
-	sdkp->dev.class = &sd_disk_class;
-	strncpy(sdkp->dev.bus_id, sdp->sdev_gendev.bus_id, BUS_ID_SIZE);
-
-	if (device_add(&sdkp->dev))
-		goto out_free_index;
-
-	get_device(&sdp->sdev_gendev);
-
-	if (index < SD_MAX_DISKS) {
-		gd->major = sd_major((index & 0xf0) >> 4);
-		gd->first_minor = ((index & 0xf) << 4) | (index & 0xfff00);
-		gd->minors = SD_MINORS;
-	}
-	gd->fops = &sd_fops;
-	gd->private_data = &sdkp->driver;
-	gd->queue = sdkp->device->request_queue;
-
-	sd_revalidate_disk(gd);
-
-	blk_queue_prep_rq(sdp->request_queue, sd_prep_fn);
-
-	gd->driverfs_dev = &sdp->sdev_gendev;
-	gd->flags = GENHD_FL_EXT_DEVT | GENHD_FL_DRIVERFS;
-	if (sdp->removable)
-		gd->flags |= GENHD_FL_REMOVABLE;
-
-	dev_set_drvdata(dev, sdkp);
-	add_disk(gd);
-	sd_dif_config_host(sdkp);
-
-	sd_printk(KERN_NOTICE, sdkp, "Attached SCSI %sdisk\n",
-		  sdp->removable ? "removable " : "");
+	async_schedule(sd_probe_async, sdkp);
 
 	return 0;
 
@@ -1986,7 +2012,7 @@ static int sd_start_stop_device(struct scsi_disk *sdkp, int start)
 		return -ENODEV;
 
 	res = scsi_execute_req(sdp, cmd, DMA_NONE, NULL, 0, &sshdr,
-			       SD_TIMEOUT, SD_MAX_RETRIES);
+			       SD_TIMEOUT, SD_MAX_RETRIES, NULL);
 	if (res) {
 		sd_printk(KERN_WARNING, sdkp, "START_STOP FAILED\n");
 		sd_print_result(sdkp, res);