update devfs patches

git-svn-id: svn://svn.openwrt.org/openwrt/branches/buildroot-ng/openwrt@4669 3c298f89-4303-0410-b956-a3cf2f4a3e73

1 files changed, 507 insertions, 8 deletions

diff --git a/target/linux/generic-2.6/patches/000-reenable_devfs.patch b/target/linux/generic-2.6/patches/000-reenable_devfs.patch
index ce98def5da..7871c4c378 100644
--- a/target/linux/generic-2.6/patches/000-reenable_devfs.patch
+++ b/target/linux/generic-2.6/patches/000-reenable_devfs.patch
@@ -48,14 +48,6 @@ diff -ur linux-2.6.15-rc5/drivers/mtd/mtd_blkdevs.c linux-2.6.15-rc5-openwrt/dri
 diff -ur linux-2.6.15-rc5/drivers/mtd/mtdchar.c linux-2.6.15-rc5-openwrt/drivers/mtd/mtdchar.c
 --- linux-2.6.15-rc5/drivers/mtd/mtdchar.c	2005-12-04 06:10:42.000000000 +0100
 +++ linux-2.6.15-rc5-openwrt/drivers/mtd/mtdchar.c	2005-12-15 07:49:15.000000000 +0100
-@@ -6,7 +6,6 @@
-  */
- 
- #include <linux/config.h>
--#include <linux/device.h>
- #include <linux/fs.h>
- #include <linux/init.h>
- #include <linux/kernel.h>
 @@ -19,19 +18,33 @@
  
  #include <asm/uaccess.h>
@@ -217,3 +209,510 @@ diff -ur linux-2.6.15-rc5/fs/Kconfig linux-2.6.15-rc5-openwrt/fs/Kconfig
  config SYSFS
  	bool "sysfs file system support" if EMBEDDED
  	default y
+diff -ur linux-2.6.17/drivers/ieee1394/dv1394.c linux-2.6.17-devfs/drivers/ieee1394/dv1394.c
+--- linux-2.6.17/drivers/ieee1394/dv1394.c	2006-06-17 18:49:35.000000000 -0700
++++ linux-2.6.17-devfs/drivers/ieee1394/dv1394.c	2006-08-25 11:06:18.000000000 -0700
+@@ -73,7 +73,7 @@
+   - fix all XXX showstoppers
+   - disable IR/IT DMA interrupts on shutdown
+   - flush pci writes to the card by issuing a read
+-  - character device dispatching
++  - devfs and character device dispatching (* needs testing with Linux 2.2.x)
+   - switch over to the new kernel DMA API (pci_map_*()) (* needs testing on platforms with IOMMU!)
+   - keep all video_cards in a list (for open() via chardev), set file->private_data = video
+   - dv1394_poll should indicate POLLIN when receiving buffers are available
+@@ -1096,6 +1096,7 @@
+ 
+ 	init.api_version = DV1394_API_VERSION;
+ 	init.n_frames = DV1394_MAX_FRAMES / 4;
++	/* the following are now set via devfs */
+ 	init.channel = video->channel;
+ 	init.format = video->pal_or_ntsc;
+ 	init.cip_n = video->cip_n;
+@@ -1790,6 +1791,8 @@
+ {
+ 	struct video_card *video = NULL;
+ 
++	/* if the device was opened through devfs, then file->private_data
++	   has already been set to video by devfs */
+ 	if (file->private_data) {
+ 		video = (struct video_card*) file->private_data;
+ 
+@@ -2208,7 +2211,7 @@
+ 	video = kzalloc(sizeof(*video), GFP_KERNEL);
+ 	if (!video) {
+ 		printk(KERN_ERR "dv1394: cannot allocate video_card\n");
+-		return -1;
++		goto err;
+ 	}
+ 
+ 	video->ohci = ohci;
+@@ -2263,14 +2266,37 @@
+ 	list_add_tail(&video->list, &dv1394_cards);
+ 	spin_unlock_irqrestore(&dv1394_cards_lock, flags);
+ 
++	if (devfs_mk_cdev(MKDEV(IEEE1394_MAJOR,
++				IEEE1394_MINOR_BLOCK_DV1394*16 + video->id),
++			S_IFCHR|S_IRUGO|S_IWUGO,
++			 "ieee1394/dv/host%d/%s/%s",
++			 (video->id>>2),
++			 (video->pal_or_ntsc == DV1394_NTSC ? "NTSC" : "PAL"),
++			 (video->mode == MODE_RECEIVE ? "in" : "out")) < 0)
++			goto err_free;
++
+ 	debug_printk("dv1394: dv1394_init() OK on ID %d\n", video->id);
++
+ 	return 0;
++
++ err_free:
++	kfree(video);
++ err:
++	return -1;
+ }
+ 
+ static void dv1394_un_init(struct video_card *video)
+ {
++	char buf[32];
++
+ 	/* obviously nobody has the driver open at this point */
+ 	do_dv1394_shutdown(video, 1);
++	snprintf(buf, sizeof(buf), "dv/host%d/%s/%s", (video->id >> 2),
++		(video->pal_or_ntsc == DV1394_NTSC ? "NTSC" : "PAL"),
++		(video->mode == MODE_RECEIVE ? "in" : "out")
++		);
++
++	devfs_remove("ieee1394/%s", buf);
+ 	kfree(video);
+ }
+ 
+@@ -2307,6 +2333,9 @@
+ 
+ 	class_device_destroy(hpsb_protocol_class,
+ 		MKDEV(IEEE1394_MAJOR, IEEE1394_MINOR_BLOCK_DV1394 * 16 + (id<<2)));
++	devfs_remove("ieee1394/dv/host%d/NTSC", id);
++	devfs_remove("ieee1394/dv/host%d/PAL", id);
++	devfs_remove("ieee1394/dv/host%d", id);
+ }
+ 
+ static void dv1394_add_host (struct hpsb_host *host)
+@@ -2323,6 +2352,9 @@
+ 	class_device_create(hpsb_protocol_class, NULL, MKDEV(
+ 		IEEE1394_MAJOR,	IEEE1394_MINOR_BLOCK_DV1394 * 16 + (id<<2)), 
+ 		NULL, "dv1394-%d", id);
++	devfs_mk_dir("ieee1394/dv/host%d", id);
++	devfs_mk_dir("ieee1394/dv/host%d/NTSC", id);
++	devfs_mk_dir("ieee1394/dv/host%d/PAL", id);
+ 
+ 	dv1394_init(ohci, DV1394_NTSC, MODE_RECEIVE);
+ 	dv1394_init(ohci, DV1394_NTSC, MODE_TRANSMIT);
+@@ -2579,8 +2611,10 @@
+ static void __exit dv1394_exit_module(void)
+ {
+ 	hpsb_unregister_protocol(&dv1394_driver);
++
+ 	hpsb_unregister_highlevel(&dv1394_highlevel);
+ 	cdev_del(&dv1394_cdev);
++	devfs_remove("ieee1394/dv");
+ }
+ 
+ static int __init dv1394_init_module(void)
+@@ -2596,12 +2630,15 @@
+ 		return ret;
+ 	}
+ 
++	devfs_mk_dir("ieee1394/dv");
++
+ 	hpsb_register_highlevel(&dv1394_highlevel);
+ 
+ 	ret = hpsb_register_protocol(&dv1394_driver);
+ 	if (ret) {
+ 		printk(KERN_ERR "dv1394: failed to register protocol\n");
+ 		hpsb_unregister_highlevel(&dv1394_highlevel);
++		devfs_remove("ieee1394/dv");
+ 		cdev_del(&dv1394_cdev);
+ 		return ret;
+ 	}
+diff -ur linux-2.6.17/drivers/ieee1394/ieee1394_core.c linux-2.6.17-devfs/drivers/ieee1394/ieee1394_core.c
+--- linux-2.6.17/drivers/ieee1394/ieee1394_core.c	2006-06-17 18:49:35.000000000 -0700
++++ linux-2.6.17-devfs/drivers/ieee1394/ieee1394_core.c	2006-08-25 11:06:18.000000000 -0700
+@@ -1078,10 +1078,17 @@
+ 		goto exit_release_kernel_thread;
+ 	}
+ 
++	/* actually this is a non-fatal error */
++	ret = devfs_mk_dir("ieee1394");
++	if (ret < 0) {
++		HPSB_ERR("unable to make devfs dir for device major %d!\n", IEEE1394_MAJOR);
++		goto release_chrdev;
++	}
++
+ 	ret = bus_register(&ieee1394_bus_type);
+ 	if (ret < 0) {
+ 		HPSB_INFO("bus register failed");
+-		goto release_chrdev;
++		goto release_devfs;
+ 	}
+ 
+ 	for (i = 0; fw_bus_attrs[i]; i++) {
+@@ -1092,7 +1099,7 @@
+ 						fw_bus_attrs[i--]);
+ 			}
+ 			bus_unregister(&ieee1394_bus_type);
+-			goto release_chrdev;
++			goto release_devfs;
+ 		}
+ 	}
+ 
+@@ -1145,6 +1152,8 @@
+ 	for (i = 0; fw_bus_attrs[i]; i++)
+ 		bus_remove_file(&ieee1394_bus_type, fw_bus_attrs[i]);
+ 	bus_unregister(&ieee1394_bus_type);
++release_devfs:
++	devfs_remove("ieee1394");
+ release_chrdev:
+ 	unregister_chrdev_region(IEEE1394_CORE_DEV, 256);
+ exit_release_kernel_thread:
+@@ -1182,6 +1191,7 @@
+ 	hpsb_cleanup_config_roms();
+ 
+ 	unregister_chrdev_region(IEEE1394_CORE_DEV, 256);
++	devfs_remove("ieee1394");
+ }
+ 
+ module_init(ieee1394_init);
+diff -ur linux-2.6.17/drivers/ieee1394/ieee1394_core.h linux-2.6.17-devfs/drivers/ieee1394/ieee1394_core.h
+--- linux-2.6.17/drivers/ieee1394/ieee1394_core.h	2006-06-17 18:49:35.000000000 -0700
++++ linux-2.6.17-devfs/drivers/ieee1394/ieee1394_core.h	2006-08-25 11:06:18.000000000 -0700
+@@ -3,6 +3,7 @@
+ #define _IEEE1394_CORE_H
+ 
+ #include <linux/slab.h>
++#include <linux/devfs_fs_kernel.h>
+ #include <asm/atomic.h>
+ #include <asm/semaphore.h>
+ #include "hosts.h"
+diff -ur linux-2.6.17/drivers/ieee1394/raw1394.c linux-2.6.17-devfs/drivers/ieee1394/raw1394.c
+--- linux-2.6.17/drivers/ieee1394/raw1394.c	2006-06-17 18:49:35.000000000 -0700
++++ linux-2.6.17-devfs/drivers/ieee1394/raw1394.c	2006-08-25 11:06:18.000000000 -0700
+@@ -41,6 +41,7 @@
+ #include <linux/cdev.h>
+ #include <asm/uaccess.h>
+ #include <asm/atomic.h>
++#include <linux/devfs_fs_kernel.h>
+ #include <linux/compat.h>
+ 
+ #include "csr1212.h"
+@@ -2998,6 +2999,9 @@
+ 		goto out_unreg;
+ 	}
+ 
++	devfs_mk_cdev(MKDEV(IEEE1394_MAJOR, IEEE1394_MINOR_BLOCK_RAW1394 * 16),
++		      S_IFCHR | S_IRUSR | S_IWUSR, RAW1394_DEVICE_NAME);
++
+ 	cdev_init(&raw1394_cdev, &raw1394_fops);
+ 	raw1394_cdev.owner = THIS_MODULE;
+ 	kobject_set_name(&raw1394_cdev.kobj, RAW1394_DEVICE_NAME);
+@@ -3019,6 +3023,7 @@
+ 	goto out;
+ 
+       out_dev:
++	devfs_remove(RAW1394_DEVICE_NAME);
+ 	class_device_destroy(hpsb_protocol_class,
+ 			     MKDEV(IEEE1394_MAJOR,
+ 				   IEEE1394_MINOR_BLOCK_RAW1394 * 16));
+@@ -3034,6 +3039,7 @@
+ 			     MKDEV(IEEE1394_MAJOR,
+ 				   IEEE1394_MINOR_BLOCK_RAW1394 * 16));
+ 	cdev_del(&raw1394_cdev);
++	devfs_remove(RAW1394_DEVICE_NAME);
+ 	hpsb_unregister_highlevel(&raw1394_highlevel);
+ 	hpsb_unregister_protocol(&raw1394_driver);
+ }
+diff -ur linux-2.6.17/drivers/ieee1394/video1394.c linux-2.6.17-devfs/drivers/ieee1394/video1394.c
+--- linux-2.6.17/drivers/ieee1394/video1394.c	2006-06-17 18:49:35.000000000 -0700
++++ linux-2.6.17-devfs/drivers/ieee1394/video1394.c	2006-08-25 11:06:18.000000000 -0700
+@@ -42,6 +42,7 @@
+ #include <linux/poll.h>
+ #include <linux/smp_lock.h>
+ #include <linux/delay.h>
++#include <linux/devfs_fs_kernel.h>
+ #include <linux/bitops.h>
+ #include <linux/types.h>
+ #include <linux/vmalloc.h>
+@@ -1321,6 +1322,9 @@
+ 	class_device_create(hpsb_protocol_class, NULL, MKDEV(
+ 		IEEE1394_MAJOR,	minor), 
+ 		NULL, "%s-%d", VIDEO1394_DRIVER_NAME, ohci->host->id);
++	devfs_mk_cdev(MKDEV(IEEE1394_MAJOR, minor),
++		       S_IFCHR | S_IRUSR | S_IWUSR,
++		       "%s/%d", VIDEO1394_DRIVER_NAME, ohci->host->id);
+ }
+ 
+ 
+@@ -1328,9 +1332,12 @@
+ {
+ 	struct ti_ohci *ohci = hpsb_get_hostinfo(&video1394_highlevel, host);
+ 
+-	if (ohci)
++	if (ohci) {
+ 		class_device_destroy(hpsb_protocol_class, MKDEV(IEEE1394_MAJOR,
+ 			IEEE1394_MINOR_BLOCK_VIDEO1394 * 16 + ohci->host->id));
++		devfs_remove("%s/%d", VIDEO1394_DRIVER_NAME, ohci->host->id);
++	}
++	
+ 	return;
+ }
+ 
+@@ -1471,8 +1478,12 @@
+ static void __exit video1394_exit_module (void)
+ {
+ 	hpsb_unregister_protocol(&video1394_driver);
++
+ 	hpsb_unregister_highlevel(&video1394_highlevel);
++
++	devfs_remove(VIDEO1394_DRIVER_NAME);
+ 	cdev_del(&video1394_cdev);
++
+ 	PRINT_G(KERN_INFO, "Removed " VIDEO1394_DRIVER_NAME " module");
+ }
+ 
+@@ -1489,12 +1500,15 @@
+ 		return ret;
+         }
+ 
++	devfs_mk_dir(VIDEO1394_DRIVER_NAME);
++
+ 	hpsb_register_highlevel(&video1394_highlevel);
+ 
+ 	ret = hpsb_register_protocol(&video1394_driver);
+ 	if (ret) {
+ 		PRINT_G(KERN_ERR, "video1394: failed to register protocol");
+ 		hpsb_unregister_highlevel(&video1394_highlevel);
++		devfs_remove(VIDEO1394_DRIVER_NAME);
+ 		cdev_del(&video1394_cdev);
+ 		return ret;
+ 	}
+diff -ur linux-2.6.17/drivers/scsi/osst.c linux-2.6.17-devfs/drivers/scsi/osst.c
+--- linux-2.6.17/drivers/scsi/osst.c	2006-06-17 18:49:35.000000000 -0700
++++ linux-2.6.17-devfs/drivers/scsi/osst.c	2006-08-25 11:06:18.000000000 -0700
+@@ -48,6 +48,7 @@
+ #include <linux/vmalloc.h>
+ #include <linux/blkdev.h>
+ #include <linux/moduleparam.h>
++#include <linux/devfs_fs_kernel.h>
+ #include <linux/delay.h>
+ #include <linux/jiffies.h>
+ #include <asm/uaccess.h>
+@@ -5721,7 +5722,7 @@
+ 	struct st_partstat * STps;
+ 	struct osst_buffer * buffer;
+ 	struct gendisk	   * drive;
+-	int		     i, dev_num;
++	int		     i, mode, dev_num;
+ 
+ 	if (SDp->type != TYPE_TAPE || !osst_supports(SDp))
+ 		return -ENODEV;
+@@ -5857,6 +5858,18 @@
+ 		snprintf(name, 8, "%s%s", "n", tape_name(tpnt));
+ 		osst_sysfs_add(MKDEV(OSST_MAJOR, dev_num + 128), dev, tpnt, name);
+ 	}
++	for (mode = 0; mode < ST_NBR_MODES; ++mode) {
++		/*  Rewind entry  */
++		devfs_mk_cdev(MKDEV(OSST_MAJOR, dev_num + (mode << 5)),
++				S_IFCHR | S_IRUGO | S_IWUGO,
++				"%s/ot%s", SDp->devfs_name, osst_formats[mode]);
++
++		/*  No-rewind entry  */
++		devfs_mk_cdev(MKDEV(OSST_MAJOR, dev_num + (mode << 5) + 128),
++				S_IFCHR | S_IRUGO | S_IWUGO,
++				"%s/ot%sn", SDp->devfs_name, osst_formats[mode]);
++	}
++	drive->number = devfs_register_tape(SDp->devfs_name);
+ 
+ 	sdev_printk(KERN_INFO, SDp,
+ 		"osst :I: Attached OnStream %.5s tape as %s\n",
+@@ -5873,7 +5886,7 @@
+ {
+ 	struct scsi_device * SDp = to_scsi_device(dev);
+ 	struct osst_tape * tpnt;
+-	int i;
++	int i, mode;
+ 
+ 	if ((SDp->type != TYPE_TAPE) || (osst_nr_dev <= 0))
+ 		return 0;
+@@ -5884,6 +5897,11 @@
+ 			osst_sysfs_destroy(MKDEV(OSST_MAJOR, i));
+ 			osst_sysfs_destroy(MKDEV(OSST_MAJOR, i+128));
+ 			tpnt->device = NULL;
++			for (mode = 0; mode < ST_NBR_MODES; ++mode) {
++				devfs_remove("%s/ot%s", SDp->devfs_name, osst_formats[mode]);
++				devfs_remove("%s/ot%sn", SDp->devfs_name, osst_formats[mode]);
++			}
++			devfs_unregister_tape(tpnt->drive->number);
+ 			put_disk(tpnt->drive);
+ 			os_scsi_tapes[i] = NULL;
+ 			osst_nr_dev--;
+diff -ur linux-2.6.17/drivers/scsi/scsi.c linux-2.6.17-devfs/drivers/scsi/scsi.c
+--- linux-2.6.17/drivers/scsi/scsi.c	2006-06-17 18:49:35.000000000 -0700
++++ linux-2.6.17-devfs/drivers/scsi/scsi.c	2006-08-25 11:07:42.000000000 -0700
+@@ -48,6 +48,7 @@
+ #include <linux/delay.h>
+ #include <linux/init.h>
+ #include <linux/completion.h>
++#include <linux/devfs_fs_kernel.h>
+ #include <linux/unistd.h>
+ #include <linux/spinlock.h>
+ #include <linux/kmod.h>
+@@ -1247,6 +1248,7 @@
+ 	for_each_possible_cpu(i)
+ 		INIT_LIST_HEAD(&per_cpu(scsi_done_q, i));
+ 
++	devfs_mk_dir("scsi");
+ 	printk(KERN_NOTICE "SCSI subsystem initialized\n");
+ 	return 0;
+ 
+@@ -1271,6 +1273,7 @@
+ 	scsi_exit_sysctl();
+ 	scsi_exit_hosts();
+ 	scsi_exit_devinfo();
++	devfs_remove("scsi");
+ 	scsi_exit_procfs();
+ 	scsi_exit_queue();
+ }
+diff -ur linux-2.6.17/drivers/scsi/scsi_scan.c linux-2.6.17-devfs/drivers/scsi/scsi_scan.c
+--- linux-2.6.17/drivers/scsi/scsi_scan.c	2006-06-17 18:49:35.000000000 -0700
++++ linux-2.6.17-devfs/drivers/scsi/scsi_scan.c	2006-08-25 11:06:18.000000000 -0700
+@@ -716,8 +716,12 @@
+ 	if (inq_result[7] & 0x10)
+ 		sdev->sdtr = 1;
+ 
++	sprintf(sdev->devfs_name, "scsi/host%d/bus%d/target%d/lun%d",
++				sdev->host->host_no, sdev->channel,
++				sdev->id, sdev->lun);
++
+ 	/*
+-	 * End sysfs code.
++	 * End driverfs/devfs code.
+ 	 */
+ 
+ 	if ((sdev->scsi_level >= SCSI_2) && (inq_result[7] & 2) &&
+diff -ur linux-2.6.17/drivers/scsi/sd.c linux-2.6.17-devfs/drivers/scsi/sd.c
+--- linux-2.6.17/drivers/scsi/sd.c	2006-06-17 18:49:35.000000000 -0700
++++ linux-2.6.17-devfs/drivers/scsi/sd.c	2006-08-25 11:06:18.000000000 -0700
+@@ -1683,6 +1683,8 @@
+ 			'a' + m1, 'a' + m2, 'a' + m3);
+ 	}
+ 
++	strcpy(gd->devfs_name, sdp->devfs_name);
++
+ 	gd->private_data = &sdkp->driver;
+ 	gd->queue = sdkp->device->request_queue;
+ 
+diff -ur linux-2.6.17/drivers/scsi/sg.c linux-2.6.17-devfs/drivers/scsi/sg.c
+--- linux-2.6.17/drivers/scsi/sg.c	2006-06-17 18:49:35.000000000 -0700
++++ linux-2.6.17-devfs/drivers/scsi/sg.c	2006-08-25 11:06:18.000000000 -0700
+@@ -44,6 +44,7 @@
+ #include <linux/poll.h>
+ #include <linux/smp_lock.h>
+ #include <linux/moduleparam.h>
++#include <linux/devfs_fs_kernel.h>
+ #include <linux/cdev.h>
+ #include <linux/seq_file.h>
+ #include <linux/blkdev.h>
+@@ -1427,10 +1428,14 @@
+ 	k = error;
+ 	sdp = sg_dev_arr[k];
+ 
++	devfs_mk_cdev(MKDEV(SCSI_GENERIC_MAJOR, k),
++			S_IFCHR | S_IRUSR | S_IWUSR | S_IRGRP,
++			"%s/generic", scsidp->devfs_name);
+ 	error = cdev_add(cdev, MKDEV(SCSI_GENERIC_MAJOR, k), 1);
+-	if (error)
++	if (error) {
++		devfs_remove("%s/generic", scsidp->devfs_name);
+ 		goto out;
+-
++	}
+ 	sdp->cdev = cdev;
+ 	if (sg_sysfs_valid) {
+ 		struct class_device * sg_class_member;
+@@ -1520,6 +1525,7 @@
+ 		class_device_destroy(sg_sysfs_class, MKDEV(SCSI_GENERIC_MAJOR, k));
+ 		cdev_del(sdp->cdev);
+ 		sdp->cdev = NULL;
++		devfs_remove("%s/generic", scsidp->devfs_name);
+ 		put_disk(sdp->disk);
+ 		sdp->disk = NULL;
+ 		if (NULL == sdp->headfp)
+diff -ur linux-2.6.17/drivers/scsi/sr.c linux-2.6.17-devfs/drivers/scsi/sr.c
+--- linux-2.6.17/drivers/scsi/sr.c	2006-06-17 18:49:35.000000000 -0700
++++ linux-2.6.17-devfs/drivers/scsi/sr.c	2006-08-25 11:06:18.000000000 -0700
+@@ -592,6 +592,8 @@
+ 	get_capabilities(cd);
+ 	sr_vendor_init(cd);
+ 
++	snprintf(disk->devfs_name, sizeof(disk->devfs_name),
++			"%s/cd", sdev->devfs_name);
+ 	disk->driverfs_dev = &sdev->sdev_gendev;
+ 	set_capacity(disk, cd->capacity);
+ 	disk->private_data = &cd->driver;
+diff -ur linux-2.6.17/drivers/scsi/st.c linux-2.6.17-devfs/drivers/scsi/st.c
+--- linux-2.6.17/drivers/scsi/st.c	2006-06-17 18:49:35.000000000 -0700
++++ linux-2.6.17-devfs/drivers/scsi/st.c	2006-08-25 11:06:18.000000000 -0700
+@@ -35,6 +35,7 @@
+ #include <linux/spinlock.h>
+ #include <linux/blkdev.h>
+ #include <linux/moduleparam.h>
++#include <linux/devfs_fs_kernel.h>
+ #include <linux/cdev.h>
+ #include <linux/delay.h>
+ #include <linux/mutex.h>
+@@ -4053,8 +4054,23 @@
+ 		do_create_class_files(tpnt, dev_num, mode);
+ 	}
+ 
++	for (mode = 0; mode < ST_NBR_MODES; ++mode) {
++		/* Make sure that the minor numbers corresponding to the four
++		   first modes always get the same names */
++		i = mode << (4 - ST_NBR_MODE_BITS);
++		/*  Rewind entry  */
++		devfs_mk_cdev(MKDEV(SCSI_TAPE_MAJOR, TAPE_MINOR(dev_num, mode, 0)),
++			      S_IFCHR | S_IRUGO | S_IWUGO,
++			      "%s/mt%s", SDp->devfs_name, st_formats[i]);
++		/*  No-rewind entry  */
++		devfs_mk_cdev(MKDEV(SCSI_TAPE_MAJOR, TAPE_MINOR(dev_num, mode, 1)),
++			      S_IFCHR | S_IRUGO | S_IWUGO,
++			      "%s/mt%sn", SDp->devfs_name, st_formats[i]);
++	}
++	disk->number = devfs_register_tape(SDp->devfs_name);
++
+ 	sdev_printk(KERN_WARNING, SDp,
+		    "Attached scsi tape %s\n", tape_name(tpnt));
+ 	printk(KERN_WARNING "%s: try direct i/o: %s (alignment %d B)\n",
+ 	       tape_name(tpnt), tpnt->try_dio ? "yes" : "no",
+ 	       queue_dma_alignment(SDp->request_queue) + 1);
+@@ -4106,9 +4122,13 @@
+ 			scsi_tapes[i] = NULL;
+ 			st_nr_dev--;
+ 			write_unlock(&st_dev_arr_lock);
++			devfs_unregister_tape(tpnt->disk->number);
+ 			sysfs_remove_link(&tpnt->device->sdev_gendev.kobj,
+ 					  "tape");
+ 			for (mode = 0; mode < ST_NBR_MODES; ++mode) {
++				j = mode << (4 - ST_NBR_MODE_BITS);
++				devfs_remove("%s/mt%s", SDp->devfs_name, st_formats[j]);
++				devfs_remove("%s/mt%sn", SDp->devfs_name, st_formats[j]);
+ 				for (j=0; j < 2; j++) {
+ 					class_device_destroy(st_sysfs_class,
+ 							     MKDEV(SCSI_TAPE_MAJOR,
+diff -ur linux-2.6.17/include/scsi/scsi_device.h linux-2.6.17-devfs/include/scsi/scsi_device.h
+--- linux-2.6.17/include/scsi/scsi_device.h	2006-06-17 18:49:35.000000000 -0700
++++ linux-2.6.17-devfs/include/scsi/scsi_device.h	2006-08-25 11:06:18.000000000 -0700
+@@ -74,6 +74,7 @@
+ 	unsigned sector_size;	/* size in bytes */
+ 
+ 	void *hostdata;		/* available to low-level driver */
++	char devfs_name[256];	/* devfs junk */
+ 	char type;
+ 	char scsi_level;
+ 	char inq_periph_qual;	/* PQ from INQUIRY data */