[PATCH] ide subdrivers attach() cleanup

->attach() for ide subdrivers explicitly calls register_disk()
instead of ata_revalidate() now; revalidate_drives() is gone -
it's not needed anymore (we _know_ that we'll read partition
table as soon as driver claims the drive; no need to mess with
bogus rereading).

drivers/ide/ide-cd.c

@@ -2946,6 +2946,7 @@ static void ide_cdrom_attach(struct ata_device *drive)
 	struct cdrom_info *info;
 	char *req;
 	struct ata_channel *channel;
+	struct gendisk *disk;
 	int unit;
 
 	if (drive->type != ATA_ROM)
@@ -2983,8 +2984,12 @@ static void ide_cdrom_attach(struct ata_device *drive)
 
 	channel = drive->channel;
 	unit = drive - channel->drives;
-
-	ata_revalidate(mk_kdev(channel->major, unit << PARTN_BITS));
+	disk = channel->gd[unit];
+	disk->minor_shift = 0;
+	ide_cdrom_revalidate(drive);
+	register_disk(disk, mk_kdev(disk->major, disk->first_minor),
+			1<<disk->minor_shift, disk->fops,
+			ide_cdrom_capacity(drive));
 }
 
 MODULE_PARM(ignore, "s");

drivers/ide/ide-disk.c

@@ -1462,6 +1462,7 @@ static void idedisk_attach(struct ata_device *drive)
 {
 	char *req;
 	struct ata_channel *channel;
+	struct gendisk *disk;
 	int unit;
 
 	if (drive->type != ATA_DISK)
@@ -1485,8 +1486,10 @@ static void idedisk_attach(struct ata_device *drive)
 
 	channel = drive->channel;
 	unit = drive - channel->drives;
-
-	ata_revalidate(mk_kdev(channel->major, unit << PARTN_BITS));
+	disk = channel->gd[unit];
+	disk->minor_shift = PARTN_BITS;
+	register_disk(disk, mk_kdev(disk->major, disk->first_minor),
+			1<<disk->minor_shift, disk->fops, drive->capacity);
 }
 
 static void __exit idedisk_exit(void)

drivers/ide/ide-floppy.c

@@ -1755,6 +1755,7 @@ static void idefloppy_attach(struct ata_device *drive)
 	idefloppy_floppy_t *floppy;
 	char *req;
 	struct ata_channel *channel;
+	struct gendisk *disk;
 	int unit;
 
 	if (drive->type != ATA_FLOPPY)
@@ -1790,8 +1791,11 @@ static void idefloppy_attach(struct ata_device *drive)
 
 	channel = drive->channel;
 	unit = drive - channel->drives;
-
-	ata_revalidate(mk_kdev(channel->major, unit << PARTN_BITS));
+	disk = channel->gd[unit];
+	disk->minor_shift = PARTN_BITS;
+	register_disk(disk, mk_kdev(disk->major, disk->first_minor),
+			1<<disk->minor_shift, disk->fops,
+			idefloppy_capacity(drive));
 }
 
 MODULE_DESCRIPTION("ATAPI FLOPPY Driver");

drivers/ide/ide-tape.c

@@ -5641,13 +5641,6 @@ static void idetape_attach(struct ata_device *drive)
 		unregister_chrdev (IDETAPE_MAJOR, "ht");
 	} else
 		idetape_chrdev_present = 1;
-
-	/* Feel free to use partitions even on tapes... */
-
-	channel = drive->channel;
-	unit = drive - channel->drives;
-
-	ata_revalidate(mk_kdev(channel->major, unit << PARTN_BITS));
 }
 
 MODULE_DESCRIPTION("ATAPI Streaming TAPE Driver");

drivers/ide/main.c

@@ -296,31 +296,6 @@ int ata_revalidate(kdev_t i_rdev)
 	return res;
 }
 
-/*
- * FIXME: this is most propably just totally unnecessary.
- *
- * Look again for all drives in the system on all interfaces.
- */
-static void revalidate_drives(void)
-{
-	int i;
-
-	for (i = 0; i < MAX_HWIFS; ++i) {
-		int unit;
-		struct ata_channel *ch = &ide_hwifs[i];
-
-		for (unit = 0; unit < MAX_DRIVES; ++unit) {
-			struct ata_device *drive = &ch->drives[unit];
-
-			if (drive->revalidate) {
-				drive->revalidate = 0;
-				if (!initializing)
-					ata_revalidate(mk_kdev(ch->major, unit<<PARTN_BITS));
-			}
-		}
-	}
-}
-
 void ide_driver_module(void)
 {
 	int i;
@@ -328,13 +303,10 @@ void ide_driver_module(void)
 	/* Don't reinit the probe if there is already one channel detected. */
 	for (i = 0; i < MAX_HWIFS; ++i) {
 		if (ide_hwifs[i].present)
-			goto revalidate;
+			return;
 	}
 
 	ideprobe_init();
-
-revalidate:
-	revalidate_drives();
 }
 
 /*
@@ -614,7 +586,6 @@ int ide_register_hw(hw_regs_t *hw)
 
 	if (!initializing) {
 		ideprobe_init();
-		revalidate_drives();
 		/* FIXME: Do we really have to call it second time here?! */
 		ide_driver_module();
 	}
@@ -1094,8 +1065,6 @@ int ata_register_device(struct ata_device *drive, struct ata_operations *driver)
 			drive->dsc_overlap = 0;
 
 	}
-	drive->revalidate = 1;
-
 	return 0;
 }
 
@@ -1179,7 +1148,6 @@ devfs_handle_t ide_devfs_handle;
 
 EXPORT_SYMBOL(ata_register_device);
 EXPORT_SYMBOL(ata_unregister_device);
-EXPORT_SYMBOL(ata_revalidate);
 EXPORT_SYMBOL(ide_register_hw);
 EXPORT_SYMBOL(ide_unregister);
 EXPORT_SYMBOL(get_info_ptr);