[PATCH] Add block_device_operations.getgeo block device method

HDIO_GETGEO is implemented in most block drivers, and all of them have to
duplicate the code to copy the structure to userspace, as well as getting
the start sector.  This patch moves that to common code [1] and adds a
->getgeo method to fill out the raw kernel hd_geometry structure.  For many
drivers this means ->ioctl can go away now.

[1] the s390 block drivers are odd in this respect.  xpram sets ->start
    to 4 always which seems more than odd, and the dasd driver shifts
    the start offset around, probably because of it's non-standard
    sector size.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Cc: Jens Axboe <axboe@suse.de>
Cc: <mike.miller@hp.com>
Cc: Jeff Dike <jdike@addtoit.com>
Cc: Paolo Giarrusso <blaisorblade@yahoo.it>
Cc: Bartlomiej Zolnierkiewicz <B.Zolnierkiewicz@elka.pw.edu.pl>
Cc: Neil Brown <neilb@cse.unsw.edu.au>
Cc: Markus Lidel <Markus.Lidel@shadowconnect.com>
Cc: Russell King <rmk@arm.linux.org.uk>
Cc: David Woodhouse <dwmw2@infradead.org>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: James Bottomley <James.Bottomley@steeleye.com>
Signed-off-by: Adrian Bunk <bunk@stusta.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

arch/um/drivers/ubd_kern.c

@@ -117,6 +117,7 @@ static int ubd_open(struct inode * inode, struct file * filp);
 static int ubd_release(struct inode * inode, struct file * file);
 static int ubd_ioctl(struct inode * inode, struct file * file,
 		     unsigned int cmd, unsigned long arg);
+static int ubd_getgeo(struct block_device *bdev, struct hd_geometry *geo);
 
 #define MAX_DEV (8)
 
@@ -125,6 +126,7 @@ static struct block_device_operations ubd_blops = {
         .open		= ubd_open,
         .release	= ubd_release,
         .ioctl		= ubd_ioctl,
+	.getgeo		= ubd_getgeo,
 };
 
 /* Protected by the queue_lock */
@@ -1058,6 +1060,16 @@ static void do_ubd_request(request_queue_t *q)
 	}
 }
 
+static int ubd_getgeo(struct block_device *bdev, struct hd_geometry *geo)
+{
+	struct ubd *dev = bdev->bd_disk->private_data;
+
+	geo->heads = 128;
+	geo->sectors = 32;
+	geo->cylinders = dev->size / (128 * 32 * 512);
+	return 0;
+}
+
 static int ubd_ioctl(struct inode * inode, struct file * file,
 		     unsigned int cmd, unsigned long arg)
 {
@@ -1070,16 +1082,7 @@ static int ubd_ioctl(struct inode * inode, struct file * file,
 	};
 
 	switch (cmd) {
-	        struct hd_geometry g;
 		struct cdrom_volctrl volume;
-	case HDIO_GETGEO:
-		if(!loc) return(-EINVAL);
-		g.heads = 128;
-		g.sectors = 32;
-		g.cylinders = dev->size / (128 * 32 * 512);
-		g.start = get_start_sect(inode->i_bdev);
-		return(copy_to_user(loc, &g, sizeof(g)) ? -EFAULT : 0);
-
 	case HDIO_GET_IDENTITY:
 		ubd_id.cyls = dev->size / (128 * 32 * 512);
 		if(copy_to_user((char __user *) arg, (char *) &ubd_id,

block/ioctl.c

@@ -1,6 +1,7 @@
 #include <linux/sched.h>		/* for capable() */
 #include <linux/blkdev.h>
 #include <linux/blkpg.h>
+#include <linux/hdreg.h>
 #include <linux/backing-dev.h>
 #include <linux/buffer_head.h>
 #include <linux/smp_lock.h>
@@ -245,6 +246,27 @@ int blkdev_ioctl(struct inode *inode, struct file *file, unsigned cmd,
 		set_device_ro(bdev, n);
 		unlock_kernel();
 		return 0;
+	case HDIO_GETGEO: {
+		struct hd_geometry geo;
+
+		if (!arg)
+			return -EINVAL;
+		if (!disk->fops->getgeo)
+			return -ENOTTY;
+
+		/*
+		 * We need to set the startsect first, the driver may
+		 * want to override it.
+		 */
+		geo.start = get_start_sect(bdev);
+		ret = disk->fops->getgeo(bdev, &geo);
+		if (ret)
+			return ret;
+		if (copy_to_user((struct hd_geometry __user *)arg, &geo,
+					sizeof(geo)))
+			return -EFAULT;
+		return 0;
+	}
 	}
 
 	lock_kernel();

drivers/acorn/block/mfmhd.c

@@ -129,19 +129,6 @@ static DEFINE_SPINLOCK(mfm_lock);
 #define MAJOR_NR	MFM_ACORN_MAJOR
 #define QUEUE (mfm_queue)
 #define CURRENT elv_next_request(mfm_queue)
-/*
- * This sort of stuff should be in a header file shared with ide.c, hd.c, xd.c etc
- */
-#ifndef HDIO_GETGEO
-#define HDIO_GETGEO 0x301
-struct hd_geometry {
-	unsigned char heads;
-	unsigned char sectors;
-	unsigned short cylinders;
-	unsigned long start;
-};
-#endif
-
 
 /*
  * Configuration section
@@ -1153,22 +1140,13 @@ static int mfm_initdrives(void)
  * The 'front' end of the mfm driver follows...
  */
 
-static int mfm_ioctl(struct inode *inode, struct file *file, u_int cmd, u_long arg)
+static int mfm_getgeo(struct block_device *bdev, struct hd_geometry *geo)
 {
-	struct mfm_info *p = inode->i_bdev->bd_disk->private_data;
-	struct hd_geometry *geo = (struct hd_geometry *) arg;
-	if (cmd != HDIO_GETGEO)
-		return -EINVAL;
-	if (!arg)
-		return -EINVAL;
-	if (put_user (p->heads, &geo->heads))
-		return -EFAULT;
-	if (put_user (p->sectors, &geo->sectors))
-		return -EFAULT;
-	if (put_user (p->cylinders, &geo->cylinders))
-		return -EFAULT;
-	if (put_user (get_start_sect(inode->i_bdev), &geo->start))
-		return -EFAULT;
+	struct mfm_info *p = bdev->bd_disk->private_data;
+
+	geo->heads = p->heads;
+	geo->sectors = p->sectors;
+	geo->cylinders = p->cylinders;
 	return 0;
 }
 
@@ -1219,7 +1197,7 @@ void xd_set_geometry(struct block_device *bdev, unsigned char secsptrack,
 static struct block_device_operations mfm_fops =
 {
 	.owner		= THIS_MODULE,
-	.ioctl		= mfm_ioctl,
+	.getgeo		= mfm_getgeo,
 };
 
 /*

drivers/block/DAC960.c

@@ -92,34 +92,28 @@ static int DAC960_open(struct inode *inode, struct file *file)
 	return 0;
 }
 
-static int DAC960_ioctl(struct inode *inode, struct file *file,
-			unsigned int cmd, unsigned long arg)
+static int DAC960_getgeo(struct block_device *bdev, struct hd_geometry *geo)
 {
-	struct gendisk *disk = inode->i_bdev->bd_disk;
+	struct gendisk *disk = bdev->bd_disk;
 	DAC960_Controller_T *p = disk->queue->queuedata;
 	int drive_nr = (long)disk->private_data;
-	struct hd_geometry g;
-	struct hd_geometry __user *loc = (struct hd_geometry __user *)arg;
-
-	if (cmd != HDIO_GETGEO || !loc)
-		return -EINVAL;
 
 	if (p->FirmwareType == DAC960_V1_Controller) {
-		g.heads = p->V1.GeometryTranslationHeads;
-		g.sectors = p->V1.GeometryTranslationSectors;
-		g.cylinders = p->V1.LogicalDriveInformation[drive_nr].
-			LogicalDriveSize / (g.heads * g.sectors);
+		geo->heads = p->V1.GeometryTranslationHeads;
+		geo->sectors = p->V1.GeometryTranslationSectors;
+		geo->cylinders = p->V1.LogicalDriveInformation[drive_nr].
+			LogicalDriveSize / (geo->heads * geo->sectors);
 	} else {
 		DAC960_V2_LogicalDeviceInfo_T *i =
 			p->V2.LogicalDeviceInformation[drive_nr];
 		switch (i->DriveGeometry) {
 		case DAC960_V2_Geometry_128_32:
-			g.heads = 128;
-			g.sectors = 32;
+			geo->heads = 128;
+			geo->sectors = 32;
 			break;
 		case DAC960_V2_Geometry_255_63:
-			g.heads = 255;
-			g.sectors = 63;
+			geo->heads = 255;
+			geo->sectors = 63;
 			break;
 		default:
 			DAC960_Error("Illegal Logical Device Geometry %d\n",
@@ -127,12 +121,11 @@ static int DAC960_ioctl(struct inode *inode, struct file *file,
 			return -EINVAL;
 		}
 
-		g.cylinders = i->ConfigurableDeviceSize / (g.heads * g.sectors);
+		geo->cylinders = i->ConfigurableDeviceSize /
+			(geo->heads * geo->sectors);
 	}
 	
-	g.start = get_start_sect(inode->i_bdev);
-
-	return copy_to_user(loc, &g, sizeof g) ? -EFAULT : 0; 
+	return 0;
 }
 
 static int DAC960_media_changed(struct gendisk *disk)
@@ -157,7 +150,7 @@ static int DAC960_revalidate_disk(struct gendisk *disk)
 static struct block_device_operations DAC960_BlockDeviceOperations = {
 	.owner			= THIS_MODULE,
 	.open			= DAC960_open,
-	.ioctl			= DAC960_ioctl,
+	.getgeo			= DAC960_getgeo,
 	.media_changed		= DAC960_media_changed,
 	.revalidate_disk	= DAC960_revalidate_disk,
 };

drivers/block/acsi.c

@@ -1079,6 +1079,19 @@ static void redo_acsi_request( void )
  *
  ***********************************************************************/
 
+static int acsi_getgeo(struct block_device *bdev, struct hd_geometry *geo)
+{
+	struct acsi_info_struct *aip = bdev->bd_disk->private_data;
+
+	/*
+	 * Just fake some geometry here, it's nonsense anyway
+	 * To make it easy, use Adaptec's usual 64/32 mapping
+	 */
+	geo->heads = 64;
+	geo->sectors = 32;
+	geo->cylinders = aip->size >> 11;
+	return 0;
+}
 
 static int acsi_ioctl( struct inode *inode, struct file *file,
 					   unsigned int cmd, unsigned long arg )
@@ -1086,18 +1099,6 @@ static int acsi_ioctl( struct inode *inode, struct file *file,
 	struct gendisk *disk = inode->i_bdev->bd_disk;
 	struct acsi_info_struct *aip = disk->private_data;
 	switch (cmd) {
-	  case HDIO_GETGEO:
-		/* HDIO_GETGEO is supported more for getting the partition's
-		 * start sector... */
-	  { struct hd_geometry *geo = (struct hd_geometry *)arg;
-	    /* just fake some geometry here, it's nonsense anyway; to make it
-		 * easy, use Adaptec's usual 64/32 mapping */
-	    put_user( 64, &geo->heads );
-	    put_user( 32, &geo->sectors );
-	    put_user( aip->size >> 11, &geo->cylinders );
-		put_user(get_start_sect(inode->i_bdev), &geo->start);
-		return 0;
-	  }
 	  case SCSI_IOCTL_GET_IDLUN:
 		/* SCSI compatible GET_IDLUN call to get target's ID and LUN number */
 		put_user( aip->target | (aip->lun << 8),
@@ -1592,6 +1593,7 @@ static struct block_device_operations acsi_fops = {
 	.open		= acsi_open,
 	.release	= acsi_release,
 	.ioctl		= acsi_ioctl,
+	.getgeo		= acsi_getgeo,
 	.media_changed	= acsi_media_change,
 	.revalidate_disk= acsi_revalidate,
 };

drivers/block/amiflop.c

@@ -1424,6 +1424,16 @@ static void do_fd_request(request_queue_t * q)
 	redo_fd_request();
 }
 
+static int fd_getgeo(struct block_device *bdev, struct hd_geometry *geo)
+{
+	int drive = MINOR(bdev->bd_dev) & 3;
+
+	geo->heads = unit[drive].type->heads;
+	geo->sectors = unit[drive].dtype->sects * unit[drive].type->sect_mult;
+	geo->cylinders = unit[drive].type->tracks;
+	return 0;
+}
+
 static int fd_ioctl(struct inode *inode, struct file *filp,
 		    unsigned int cmd, unsigned long param)
 {
@@ -1431,18 +1441,6 @@ static int fd_ioctl(struct inode *inode, struct file *filp,
 	static struct floppy_struct getprm;
 
 	switch(cmd){
-	case HDIO_GETGEO:
-	{
-		struct hd_geometry loc;
-		loc.heads = unit[drive].type->heads;
-		loc.sectors = unit[drive].dtype->sects * unit[drive].type->sect_mult;
-		loc.cylinders = unit[drive].type->tracks;
-		loc.start = 0;
-		if (copy_to_user((void *)param, (void *)&loc,
-				 sizeof(struct hd_geometry)))
-			return -EFAULT;
-		break;
-	}
 	case FDFMTBEG:
 		get_fdc(drive);
 		if (fd_ref[drive] > 1) {
@@ -1652,6 +1650,7 @@ static struct block_device_operations floppy_fops = {
 	.open		= floppy_open,
 	.release	= floppy_release,
 	.ioctl		= fd_ioctl,
+	.getgeo		= fd_getgeo,
 	.media_changed	= amiga_floppy_change,
 };
 

drivers/block/aoe/aoeblk.c

@@ -169,38 +169,26 @@ aoeblk_make_request(request_queue_t *q, struct bio *bio)
 	return 0;
 }
 
-/* This ioctl implementation expects userland to have the device node
- * permissions set so that only priviledged users can open an aoe
- * block device directly.
- */
 static int
-aoeblk_ioctl(struct inode *inode, struct file *filp, uint cmd, ulong arg)
+aoeblk_getgeo(struct block_device *bdev, struct hd_geometry *geo)
 {
-	struct aoedev *d;
-
-	if (!arg)
-		return -EINVAL;
+	struct aoedev *d = bdev->bd_disk->private_data;
 
-	d = inode->i_bdev->bd_disk->private_data;
 	if ((d->flags & DEVFL_UP) == 0) {
 		printk(KERN_ERR "aoe: aoeblk_ioctl: disk not up\n");
 		return -ENODEV;
 	}
 
-	if (cmd == HDIO_GETGEO) {
-		d->geo.start = get_start_sect(inode->i_bdev);
-		if (!copy_to_user((void __user *) arg, &d->geo, sizeof d->geo))
-			return 0;
-		return -EFAULT;
-	}
-	printk(KERN_INFO "aoe: aoeblk_ioctl: unknown ioctl %d\n", cmd);
-	return -EINVAL;
+	geo->cylinders = d->geo.cylinders;
+	geo->heads = d->geo.heads;
+	geo->sectors = d->geo.sectors;
+	return 0;
 }
 
 static struct block_device_operations aoe_bdops = {
 	.open = aoeblk_open,
 	.release = aoeblk_release,
-	.ioctl = aoeblk_ioctl,
+	.getgeo = aoeblk_getgeo,
 	.owner = THIS_MODULE,
 };
 

drivers/block/cciss.c

@@ -153,6 +153,7 @@ static int cciss_open(struct inode *inode, struct file *filep);
 static int cciss_release(struct inode *inode, struct file *filep);
 static int cciss_ioctl(struct inode *inode, struct file *filep, 
 		unsigned int cmd, unsigned long arg);
+static int cciss_getgeo(struct block_device *bdev, struct hd_geometry *geo);
 
 static int revalidate_allvol(ctlr_info_t *host);
 static int cciss_revalidate(struct gendisk *disk);
@@ -194,6 +195,7 @@ static struct block_device_operations cciss_fops  = {
 	.open		= cciss_open, 
 	.release       	= cciss_release,
         .ioctl		= cciss_ioctl,
+        .getgeo		= cciss_getgeo,
 #ifdef CONFIG_COMPAT
 	.compat_ioctl   = cciss_compat_ioctl,
 #endif
@@ -633,6 +635,20 @@ static int cciss_ioctl32_big_passthru(struct file *file, unsigned cmd, unsigned
 	return err;
 }
 #endif
+
+static int cciss_getgeo(struct block_device *bdev, struct hd_geometry *geo)
+{
+	drive_info_struct *drv = get_drv(bdev->bd_disk);
+
+	if (!drv->cylinders)
+		return -ENXIO;
+
+	geo->heads = drv->heads;
+	geo->sectors = drv->sectors;
+	geo->cylinders = drv->cylinders;
+	return 0;
+}
+
 /*
  * ioctl 
  */
@@ -651,21 +667,6 @@ static int cciss_ioctl(struct inode *inode, struct file *filep,
 #endif /* CCISS_DEBUG */ 
 	
 	switch(cmd) {
-	case HDIO_GETGEO:
-	{
-                struct hd_geometry driver_geo;
-                if (drv->cylinders) {
-                        driver_geo.heads = drv->heads;
-                        driver_geo.sectors = drv->sectors;
-                        driver_geo.cylinders = drv->cylinders;
-                } else
-			return -ENXIO;
-                driver_geo.start= get_start_sect(inode->i_bdev);
-                if (copy_to_user(argp, &driver_geo, sizeof(struct hd_geometry)))
-                        return  -EFAULT;
-                return(0);
-	}
-
 	case CCISS_GETPCIINFO:
 	{
 		cciss_pci_info_struct pciinfo;

drivers/block/cpqarray.c

@@ -160,6 +160,7 @@ static int sendcmd(
 static int ida_open(struct inode *inode, struct file *filep);
 static int ida_release(struct inode *inode, struct file *filep);
 static int ida_ioctl(struct inode *inode, struct file *filep, unsigned int cmd, unsigned long arg);
+static int ida_getgeo(struct block_device *bdev, struct hd_geometry *geo);
 static int ida_ctlr_ioctl(ctlr_info_t *h, int dsk, ida_ioctl_t *io);
 
 static void do_ida_request(request_queue_t *q);
@@ -199,6 +200,7 @@ static struct block_device_operations ida_fops  = {
 	.open		= ida_open,
 	.release	= ida_release,
 	.ioctl		= ida_ioctl,
+	.getgeo		= ida_getgeo,
 	.revalidate_disk= ida_revalidate,
 };
 
@@ -1124,6 +1126,23 @@ static void ida_timer(unsigned long tdata)
 	h->misc_tflags = 0;
 }
 
+static int ida_getgeo(struct block_device *bdev, struct hd_geometry *geo)
+{
+	drv_info_t *drv = get_drv(bdev->bd_disk);
+
+	if (drv->cylinders) {
+		geo->heads = drv->heads;
+		geo->sectors = drv->sectors;
+		geo->cylinders = drv->cylinders;
+	} else {
+		geo->heads = 0xff;
+		geo->sectors = 0x3f;
+		geo->cylinders = drv->nr_blks / (0xff*0x3f);
+	}
+
+	return 0;
+}
+
 /*
  *  ida_ioctl does some miscellaneous stuff like reporting drive geometry,
  *  setting readahead and submitting commands from userspace to the controller.
@@ -1133,27 +1152,10 @@ static int ida_ioctl(struct inode *inode, struct file *filep, unsigned int cmd,
 	drv_info_t *drv = get_drv(inode->i_bdev->bd_disk);
 	ctlr_info_t *host = get_host(inode->i_bdev->bd_disk);
 	int error;
-	int diskinfo[4];
-	struct hd_geometry __user *geo = (struct hd_geometry __user *)arg;
 	ida_ioctl_t __user *io = (ida_ioctl_t __user *)arg;
 	ida_ioctl_t *my_io;
 
 	switch(cmd) {
-	case HDIO_GETGEO:
-		if (drv->cylinders) {
-			diskinfo[0] = drv->heads;
-			diskinfo[1] = drv->sectors;
-			diskinfo[2] = drv->cylinders;
-		} else {
-			diskinfo[0] = 0xff;
-			diskinfo[1] = 0x3f;
-			diskinfo[2] = drv->nr_blks / (0xff*0x3f);
-		}
-		put_user(diskinfo[0], &geo->heads);
-		put_user(diskinfo[1], &geo->sectors);
-		put_user(diskinfo[2], &geo->cylinders);
-		put_user(get_start_sect(inode->i_bdev), &geo->start);
-		return 0;
 	case IDAGETDRVINFO:
 		if (copy_to_user(&io->c.drv, drv, sizeof(drv_info_t)))
 			return -EFAULT;

drivers/block/floppy.c

@@ -3445,6 +3445,23 @@ static int get_floppy_geometry(int drive, int type, struct floppy_struct **g)
 	return 0;
 }
 
+static int fd_getgeo(struct block_device *bdev, struct hd_geometry *geo)
+{
+	int drive = (long)bdev->bd_disk->private_data;
+	int type = ITYPE(drive_state[drive].fd_device);
+	struct floppy_struct *g;
+	int ret;
+
+	ret = get_floppy_geometry(drive, type, &g);
+	if (ret)
+		return ret;
+
+	geo->heads = g->head;
+	geo->sectors = g->sect;
+	geo->cylinders = g->track;
+	return 0;
+}
+
 static int fd_ioctl(struct inode *inode, struct file *filp, unsigned int cmd,
 		    unsigned long param)
 {
@@ -3474,23 +3491,6 @@ static int fd_ioctl(struct inode *inode, struct file *filp, unsigned int cmd,
 		cmd = FDEJECT;
 	}
 
-	/* generic block device ioctls */
-	switch (cmd) {
-		/* the following have been inspired by the corresponding
-		 * code for other block devices. */
-		struct floppy_struct *g;
-	case HDIO_GETGEO:
-		{
-			struct hd_geometry loc;
-			ECALL(get_floppy_geometry(drive, type, &g));
-			loc.heads = g->head;
-			loc.sectors = g->sect;
-			loc.cylinders = g->track;
-			loc.start = 0;
-			return _COPYOUT(loc);
-		}
-	}
-
 	/* convert the old style command into a new style command */
 	if ((cmd & 0xff00) == 0x0200) {
 		ECALL(normalize_ioctl(&cmd, &size));
@@ -3938,6 +3938,7 @@ static struct block_device_operations floppy_fops = {
 	.open		= floppy_open,
 	.release	= floppy_release,
 	.ioctl		= fd_ioctl,
+	.getgeo		= fd_getgeo,
 	.media_changed	= check_floppy_change,
 	.revalidate_disk = floppy_revalidate,
 };

drivers/block/paride/pd.c

@@ -747,32 +747,33 @@ static int pd_open(struct inode *inode, struct file *file)
 	return 0;
 }
 
+static int pd_getgeo(struct block_device *bdev, struct hd_geometry *geo)
+{
+	struct pd_unit *disk = bdev->bd_disk->private_data;
+
+	if (disk->alt_geom) {
+		geo->heads = PD_LOG_HEADS;
+		geo->sectors = PD_LOG_SECTS;
+		geo->cylinders = disk->capacity / (geo->heads * geo->sectors);
+	} else {
+		geo->heads = disk->heads;
+		geo->sectors = disk->sectors;
+		geo->cylinders = disk->cylinders;
+	}
+
+	return 0;
+}
+
 static int pd_ioctl(struct inode *inode, struct file *file,
 	 unsigned int cmd, unsigned long arg)
 {
 	struct pd_unit *disk = inode->i_bdev->bd_disk->private_data;
-	struct hd_geometry __user *geo = (struct hd_geometry __user *) arg;
-	struct hd_geometry g;
 
 	switch (cmd) {
 	case CDROMEJECT:
 		if (disk->access == 1)
 			pd_special_command(disk, pd_eject);
 		return 0;
-	case HDIO_GETGEO:
-		if (disk->alt_geom) {
-			g.heads = PD_LOG_HEADS;
-			g.sectors = PD_LOG_SECTS;
-			g.cylinders = disk->capacity / (g.heads * g.sectors);
-		} else {
-			g.heads = disk->heads;
-			g.sectors = disk->sectors;
-			g.cylinders = disk->cylinders;
-		}
-		g.start = get_start_sect(inode->i_bdev);
-		if (copy_to_user(geo, &g, sizeof(struct hd_geometry)))
-			return -EFAULT;
-		return 0;
 	default:
 		return -EINVAL;
 	}
@@ -815,6 +816,7 @@ static struct block_device_operations pd_fops = {
 	.open		= pd_open,
 	.release	= pd_release,
 	.ioctl		= pd_ioctl,
+	.getgeo		= pd_getgeo,
 	.media_changed	= pd_check_media,
 	.revalidate_disk= pd_revalidate
 };

drivers/block/paride/pf.c

@@ -205,6 +205,7 @@ static int pf_open(struct inode *inode, struct file *file);
 static void do_pf_request(request_queue_t * q);
 static int pf_ioctl(struct inode *inode, struct file *file,
 		    unsigned int cmd, unsigned long arg);
+static int pf_getgeo(struct block_device *bdev, struct hd_geometry *geo);
 
 static int pf_release(struct inode *inode, struct file *file);
 
@@ -266,6 +267,7 @@ static struct block_device_operations pf_fops = {
 	.open		= pf_open,
 	.release	= pf_release,
 	.ioctl		= pf_ioctl,
+	.getgeo		= pf_getgeo,
 	.media_changed	= pf_check_media,
 };
 
@@ -313,34 +315,34 @@ static int pf_open(struct inode *inode, struct file *file)
 	return 0;
 }
 
-static int pf_ioctl(struct inode *inode, struct file *file, unsigned int cmd, unsigned long arg)
+static int pf_getgeo(struct block_device *bdev, struct hd_geometry *geo)
 {
-	struct pf_unit *pf = inode->i_bdev->bd_disk->private_data;
-	struct hd_geometry __user *geo = (struct hd_geometry __user *) arg;
-	struct hd_geometry g;
-	sector_t capacity;
-
-	if (cmd == CDROMEJECT) {
-		if (pf->access == 1) {
-			pf_eject(pf);
-			return 0;
-		}
-		return -EBUSY;
-	}
-	if (cmd != HDIO_GETGEO)
-		return -EINVAL;
-	capacity = get_capacity(pf->disk);
+	struct pf_unit *pf = bdev->bd_disk->private_data;
+	sector_t capacity = get_capacity(pf->disk);
+
 	if (capacity < PF_FD_MAX) {
-		g.cylinders = sector_div(capacity, PF_FD_HDS * PF_FD_SPT);
-		g.heads = PF_FD_HDS;
-		g.sectors = PF_FD_SPT;
+		geo->cylinders = sector_div(capacity, PF_FD_HDS * PF_FD_SPT);
+		geo->heads = PF_FD_HDS;
+		geo->sectors = PF_FD_SPT;
 	} else {
-		g.cylinders = sector_div(capacity, PF_HD_HDS * PF_HD_SPT);
-		g.heads = PF_HD_HDS;
-		g.sectors = PF_HD_SPT;
+		geo->cylinders = sector_div(capacity, PF_HD_HDS * PF_HD_SPT);
+		geo->heads = PF_HD_HDS;
+		geo->sectors = PF_HD_SPT;
 	}
-	if (copy_to_user(geo, &g, sizeof(g)))
-		return -EFAULT;
+
+	return 0;
+}
+
+static int pf_ioctl(struct inode *inode, struct file *file, unsigned int cmd, unsigned long arg)
+{
+	struct pf_unit *pf = inode->i_bdev->bd_disk->private_data;
+
+	if (cmd != CDROMEJECT)
+		return -EINVAL;
+
+	if (pf->access != 1)
+		return -EBUSY;
+	pf_eject(pf);
 	return 0;
 }
 

drivers/block/ps2esdi.c

@@ -81,8 +81,7 @@ static void (*current_int_handler) (u_int) = NULL;
 static void ps2esdi_normal_interrupt_handler(u_int);
 static void ps2esdi_initial_reset_int_handler(u_int);
 static void ps2esdi_geometry_int_handler(u_int);
-static int ps2esdi_ioctl(struct inode *inode, struct file *file,
-			 u_int cmd, u_long arg);
+static int ps2esdi_getgeo(struct block_device *bdev, struct hd_geometry *geo);
 
 static int ps2esdi_read_status_words(int num_words, int max_words, u_short * buffer);
 
@@ -132,7 +131,7 @@ static struct ps2esdi_i_struct ps2esdi_info[MAX_HD] =
 static struct block_device_operations ps2esdi_fops =
 {
 	.owner		= THIS_MODULE,
-	.ioctl		= ps2esdi_ioctl,
+	.getgeo		= ps2esdi_getgeo,
 };
 
 static struct gendisk *ps2esdi_gendisk[2];
@@ -1058,21 +1057,13 @@ static void dump_cmd_complete_status(u_int int_ret_code)
 
 }
 
-static int ps2esdi_ioctl(struct inode *inode,
-			 struct file *file, u_int cmd, u_long arg)
+static int ps2esdi_getgeo(struct block_device *bdev, struct hd_geometry *geo)
 {
-	struct ps2esdi_i_struct *p = inode->i_bdev->bd_disk->private_data;
-	struct ps2esdi_geometry geom;
-
-	if (cmd != HDIO_GETGEO)
-		return -EINVAL;
-	memset(&geom, 0, sizeof(geom));
-	geom.heads = p->head;
-	geom.sectors = p->sect;
-	geom.cylinders = p->cyl;
-	geom.start = get_start_sect(inode->i_bdev);
-	if (copy_to_user((void __user *)arg, &geom, sizeof(geom)))
-		return -EFAULT;
+	struct ps2esdi_i_struct *p = bdev->bd_disk->private_data;
+
+	geo->heads = p->head;
+	geo->sectors = p->sect;
+	geo->cylinders = p->cyl;
 	return 0;
 }
 

drivers/block/sx8.c

@@ -407,8 +407,7 @@ struct carm_array_info {
 
 static int carm_init_one (struct pci_dev *pdev, const struct pci_device_id *ent);
 static void carm_remove_one (struct pci_dev *pdev);
-static int carm_bdev_ioctl(struct inode *ino, struct file *fil,
-			   unsigned int cmd, unsigned long arg);
+static int carm_bdev_getgeo(struct block_device *bdev, struct hd_geometry *geo);
 
 static struct pci_device_id carm_pci_tbl[] = {
 	{ PCI_VENDOR_ID_PROMISE, 0x8000, PCI_ANY_ID, PCI_ANY_ID, 0, 0, },
@@ -426,7 +425,7 @@ static struct pci_driver carm_driver = {
 
 static struct block_device_operations carm_bd_ops = {
 	.owner		= THIS_MODULE,
-	.ioctl		= carm_bdev_ioctl,
+	.getgeo		= carm_bdev_getgeo,
 };
 
 static unsigned int carm_host_id;
@@ -434,32 +433,14 @@ static unsigned long carm_major_alloc;
 
 
 
-static int carm_bdev_ioctl(struct inode *ino, struct file *fil,
-			   unsigned int cmd, unsigned long arg)
+static int carm_bdev_getgeo(struct block_device *bdev, struct hd_geometry *geo)
 {
-	void __user *usermem = (void __user *) arg;
-	struct carm_port *port = ino->i_bdev->bd_disk->private_data;
-	struct hd_geometry geom;
+	struct carm_port *port = bdev->bd_disk->private_data;
 
-	switch (cmd) {
-	case HDIO_GETGEO:
-		if (!usermem)
-			return -EINVAL;
-
-		geom.heads = (u8) port->dev_geom_head;
-		geom.sectors = (u8) port->dev_geom_sect;
-		geom.cylinders = port->dev_geom_cyl;
-		geom.start = get_start_sect(ino->i_bdev);
-
-		if (copy_to_user(usermem, &geom, sizeof(geom)))
-			return -EFAULT;
-		return 0;
-
-	default:
-		break;
-	}
-
-	return -EOPNOTSUPP;
+	geo->heads = (u8) port->dev_geom_head;
+	geo->sectors = (u8) port->dev_geom_sect;
+	geo->cylinders = port->dev_geom_cyl;
+	return 0;
 }
 
 static const u32 msg_sizes[] = { 32, 64, 128, CARM_MSG_SIZE };

drivers/block/umem.c

@@ -809,34 +809,23 @@ static int mm_revalidate(struct gendisk *disk)
 	set_capacity(disk, card->mm_size << 1);
 	return 0;
 }
-/*
------------------------------------------------------------------------------------
---                            mm_ioctl
------------------------------------------------------------------------------------
-*/
-static int mm_ioctl(struct inode *i, struct file *f, unsigned int cmd, unsigned long arg)
+
+static int mm_getgeo(struct block_device *bdev, struct hd_geometry *geo)
 {
-	if (cmd == HDIO_GETGEO) {
-		struct cardinfo *card = i->i_bdev->bd_disk->private_data;
-		int size = card->mm_size * (1024 / MM_HARDSECT);
-		struct hd_geometry geo;
-		/*
-		 * get geometry: we have to fake one...  trim the size to a
-		 * multiple of 2048 (1M): tell we have 32 sectors, 64 heads,
-		 * whatever cylinders.
-		 */
-		geo.heads     = 64;
-		geo.sectors   = 32;
-		geo.start     = get_start_sect(i->i_bdev);
-		geo.cylinders = size / (geo.heads * geo.sectors);
-
-		if (copy_to_user((void __user *) arg, &geo, sizeof(geo)))
-			return -EFAULT;
-		return 0;
-	}
+	struct cardinfo *card = bdev->bd_disk->private_data;
+	int size = card->mm_size * (1024 / MM_HARDSECT);
 
-	return -EINVAL;
+	/*
+	 * get geometry: we have to fake one...  trim the size to a
+	 * multiple of 2048 (1M): tell we have 32 sectors, 64 heads,
+	 * whatever cylinders.
+	 */
+	geo->heads     = 64;
+	geo->sectors   = 32;
+	geo->cylinders = size / (geo->heads * geo->sectors);
+	return 0;
 }
+
 /*
 -----------------------------------------------------------------------------------
 --                                mm_check_change
@@ -855,7 +844,7 @@ static int mm_check_change(struct gendisk *disk)
 */
 static struct block_device_operations mm_fops = {
 	.owner		= THIS_MODULE,
-	.ioctl		= mm_ioctl,
+	.getgeo		= mm_getgeo,
 	.revalidate_disk= mm_revalidate,
 	.media_changed	= mm_check_change,
 };

drivers/block/viodasd.c

@@ -247,43 +247,17 @@ static int viodasd_release(struct inode *ino, struct file *fil)
 
 /* External ioctl entry point.
  */
-static int viodasd_ioctl(struct inode *ino, struct file *fil,
-			 unsigned int cmd, unsigned long arg)
+static int viodasd_getgeo(struct block_device *bdev, struct hd_geometry *geo)
 {
-	unsigned char sectors;
-	unsigned char heads;
-	unsigned short cylinders;
-	struct hd_geometry *geo;
-	struct gendisk *gendisk;
-	struct viodasd_device *d;
+	struct gendisk *disk = bdev->bd_disk;
+	struct viodasd_device *d = disk->private_data;
 
-	switch (cmd) {
-	case HDIO_GETGEO:
-		geo = (struct hd_geometry *)arg;
-		if (geo == NULL)
-			return -EINVAL;
-		if (!access_ok(VERIFY_WRITE, geo, sizeof(*geo)))
-			return -EFAULT;
-		gendisk = ino->i_bdev->bd_disk;
-		d = gendisk->private_data;
-		sectors = d->sectors;
-		if (sectors == 0)
-			sectors = 32;
-		heads = d->tracks;
-		if (heads == 0)
-			heads = 64;
-		cylinders = d->cylinders;
-		if (cylinders == 0)
-			cylinders = get_capacity(gendisk) / (sectors * heads);
-		if (__put_user(sectors, &geo->sectors) ||
-		    __put_user(heads, &geo->heads) ||
-		    __put_user(cylinders, &geo->cylinders) ||
-		    __put_user(get_start_sect(ino->i_bdev), &geo->start))
-			return -EFAULT;
-		return 0;
-	}
+	geo->sectors = d->sectors ? d->sectors : 0;
+	geo->heads = d->tracks ? d->tracks  : 64;
+	geo->cylinders = d->cylinders ? d->cylinders :
+		get_capacity(disk) / (geo->cylinders * geo->heads);
 
-	return -EINVAL;
+	return 0;
 }
 
 /*
@@ -293,7 +267,7 @@ static struct block_device_operations viodasd_fops = {
 	.owner = THIS_MODULE,
 	.open = viodasd_open,
 	.release = viodasd_release,
-	.ioctl = viodasd_ioctl,
+	.getgeo = viodasd_getgeo,
 };
 
 /*

drivers/block/xd.c

@@ -128,9 +128,12 @@ static DEFINE_SPINLOCK(xd_lock);
 
 static struct gendisk *xd_gendisk[2];
 
+static int xd_getgeo(struct block_device *bdev, struct hd_geometry *geo);
+
 static struct block_device_operations xd_fops = {
 	.owner	= THIS_MODULE,
 	.ioctl	= xd_ioctl,
+	.getgeo = xd_getgeo,
 };
 static DECLARE_WAIT_QUEUE_HEAD(xd_wait_int);
 static u_char xd_drives, xd_irq = 5, xd_dma = 3, xd_maxsectors;
@@ -330,22 +333,20 @@ static void do_xd_request (request_queue_t * q)
 	}
 }
 
+static int xd_getgeo(struct block_device *bdev, struct hd_geometry *geo)
+{
+	XD_INFO *p = bdev->bd_disk->private_data;
+
+	geo->heads = p->heads;
+	geo->sectors = p->sectors;
+	geo->cylinders = p->cylinders;
+	return 0;
+}
+
 /* xd_ioctl: handle device ioctl's */
 static int xd_ioctl (struct inode *inode,struct file *file,u_int cmd,u_long arg)
 {
-	XD_INFO *p = inode->i_bdev->bd_disk->private_data;
-
 	switch (cmd) {
-		case HDIO_GETGEO:
-		{
-			struct hd_geometry g;
-			struct hd_geometry __user *geom= (void __user *)arg;
-			g.heads = p->heads;
-			g.sectors = p->sectors;
-			g.cylinders = p->cylinders;
-			g.start = get_start_sect(inode->i_bdev);
-			return copy_to_user(geom, &g, sizeof(g)) ? -EFAULT : 0;
-		}
 		case HDIO_SET_DMA:
 			if (!capable(CAP_SYS_ADMIN)) return -EACCES;
 			if (xdc_busy) return -EBUSY;

drivers/ide/ide-disk.c

@@ -1130,6 +1130,17 @@ static int idedisk_release(struct inode *inode, struct file *filp)
 	return 0;
 }
 
+static int idedisk_getgeo(struct block_device *bdev, struct hd_geometry *geo)
+{
+	struct ide_disk_obj *idkp = ide_disk_g(bdev->bd_disk);
+	ide_drive_t *drive = idkp->drive;
+
+	geo->heads = drive->bios_head;
+	geo->sectors = drive->bios_sect;
+	geo->cylinders = (u16)drive->bios_cyl; /* truncate */
+	return 0;
+}
+
 static int idedisk_ioctl(struct inode *inode, struct file *file,
 			unsigned int cmd, unsigned long arg)
 {
@@ -1164,6 +1175,7 @@ static struct block_device_operations idedisk_ops = {
 	.open		= idedisk_open,
 	.release	= idedisk_release,
 	.ioctl		= idedisk_ioctl,
+	.getgeo		= idedisk_getgeo,
 	.media_changed	= idedisk_media_changed,
 	.revalidate_disk= idedisk_revalidate_disk
 };

drivers/ide/ide-floppy.c

@@ -2031,6 +2031,17 @@ static int idefloppy_release(struct inode *inode, struct file *filp)
 	return 0;
 }
 
+static int idefloppy_getgeo(struct block_device *bdev, struct hd_geometry *geo)
+{
+	struct ide_floppy_obj *floppy = ide_floppy_g(bdev->bd_disk);
+	ide_drive_t *drive = floppy->drive;
+
+	geo->heads = drive->bios_head;
+	geo->sectors = drive->bios_sect;
+	geo->cylinders = (u16)drive->bios_cyl; /* truncate */
+	return 0;
+}
+
 static int idefloppy_ioctl(struct inode *inode, struct file *file,
 			unsigned int cmd, unsigned long arg)
 {
@@ -2120,6 +2131,7 @@ static struct block_device_operations idefloppy_ops = {
 	.open		= idefloppy_open,
 	.release	= idefloppy_release,
 	.ioctl		= idefloppy_ioctl,
+	.getgeo		= idefloppy_getgeo,
 	.media_changed	= idefloppy_media_changed,
 	.revalidate_disk= idefloppy_revalidate_disk
 };

drivers/ide/ide.c

@@ -1278,19 +1278,6 @@ int generic_ide_ioctl(ide_drive_t *drive, struct file *file, struct block_device
 	up(&ide_setting_sem);
 
 	switch (cmd) {
-		case HDIO_GETGEO:
-		{
-			struct hd_geometry geom;
-			if (!p || (drive->media != ide_disk && drive->media != ide_floppy)) return -EINVAL;
-			geom.heads = drive->bios_head;
-			geom.sectors = drive->bios_sect;
-			geom.cylinders = (u16)drive->bios_cyl; /* truncate */
-			geom.start = get_start_sect(bdev);
-			if (copy_to_user(p, &geom, sizeof(struct hd_geometry)))
-				return -EFAULT;
-			return 0;
-		}
-
 		case HDIO_OBSOLETE_IDENTITY:
 		case HDIO_GET_IDENTITY:
 			if (bdev != bdev->bd_contains)

drivers/ide/legacy/hd.c

@@ -658,22 +658,14 @@ static void do_hd_request (request_queue_t * q)
 	enable_irq(HD_IRQ);
 }
 
-static int hd_ioctl(struct inode * inode, struct file * file,
-	unsigned int cmd, unsigned long arg)
+static int hd_getgeo(struct block_device *bdev, struct hd_geometry *geo)
 {
-	struct hd_i_struct *disk = inode->i_bdev->bd_disk->private_data;
-	struct hd_geometry __user *loc = (struct hd_geometry __user *) arg;
-	struct hd_geometry g; 
-
-	if (cmd != HDIO_GETGEO)
-		return -EINVAL;
-	if (!loc)
-		return -EINVAL;
-	g.heads = disk->head;
-	g.sectors = disk->sect;
-	g.cylinders = disk->cyl;
-	g.start = get_start_sect(inode->i_bdev);
-	return copy_to_user(loc, &g, sizeof g) ? -EFAULT : 0; 
+	struct hd_i_struct *disk = bdev->bd_disk->private_data;
+
+	geo->heads = disk->head;
+	geo->sectors = disk->sect;
+	geo->cylinders = disk->cyl;
+	return 0;
 }
 
 /*
@@ -695,7 +687,7 @@ static irqreturn_t hd_interrupt(int irq, void *dev_id, struct pt_regs *regs)
 }
 
 static struct block_device_operations hd_fops = {
-	.ioctl =	hd_ioctl,
+	.getgeo =	hd_getgeo,
 };
 
 /*

drivers/md/md.c

@@ -3598,12 +3598,21 @@ static int set_disk_faulty(mddev_t *mddev, dev_t dev)
 	return 0;
 }
 
+static int md_getgeo(struct block_device *bdev, struct hd_geometry *geo)
+{
+	mddev_t *mddev = bdev->bd_disk->private_data;
+
+	geo->heads = 2;
+	geo->sectors = 4;
+	geo->cylinders = get_capacity(mddev->gendisk) / 8;
+	return 0;
+}
+
 static int md_ioctl(struct inode *inode, struct file *file,
 			unsigned int cmd, unsigned long arg)
 {
 	int err = 0;
 	void __user *argp = (void __user *)arg;
-	struct hd_geometry __user *loc = argp;
 	mddev_t *mddev = NULL;
 
 	if (!capable(CAP_SYS_ADMIN))
@@ -3765,24 +3774,6 @@ static int md_ioctl(struct inode *inode, struct file *file,
 	 * 4 sectors (with a BIG number of cylinders...). This drives
 	 * dosfs just mad... ;-)
 	 */
-		case HDIO_GETGEO:
-			if (!loc) {
-				err = -EINVAL;
-				goto abort_unlock;
-			}
-			err = put_user (2, (char __user *) &loc->heads);
-			if (err)
-				goto abort_unlock;
-			err = put_user (4, (char __user *) &loc->sectors);
-			if (err)
-				goto abort_unlock;
-			err = put_user(get_capacity(mddev->gendisk)/8,
-					(short __user *) &loc->cylinders);
-			if (err)
-				goto abort_unlock;
-			err = put_user (get_start_sect(inode->i_bdev),
-						(long __user *) &loc->start);
-			goto done_unlock;
 	}
 
 	/*
@@ -3911,6 +3902,7 @@ static struct block_device_operations md_fops =
 	.open		= md_open,
 	.release	= md_release,
 	.ioctl		= md_ioctl,
+	.getgeo		= md_getgeo,
 	.media_changed	= md_media_changed,
 	.revalidate_disk= md_revalidate,
 };

drivers/message/i2o/i2o_block.c

@@ -662,6 +662,13 @@ static int i2o_block_release(struct inode *inode, struct file *file)
 	return 0;
 }
 
+static int i2o_block_getgeo(struct block_device *bdev, struct hd_geometry *geo)
+{
+	i2o_block_biosparam(get_capacity(bdev->bd_disk),
+			    &geo->cylinders, &geo->heads, &geo->sectors);
+	return 0;
+}
+
 /**
  *	i2o_block_ioctl - Issue device specific ioctl calls.
  *	@cmd: ioctl command
@@ -676,7 +683,6 @@ static int i2o_block_ioctl(struct inode *inode, struct file *file,
 {
 	struct gendisk *disk = inode->i_bdev->bd_disk;
 	struct i2o_block_device *dev = disk->private_data;
-	void __user *argp = (void __user *)arg;
 
 	/* Anyone capable of this syscall can do *real bad* things */
 
@@ -684,15 +690,6 @@ static int i2o_block_ioctl(struct inode *inode, struct file *file,
 		return -EPERM;
 
 	switch (cmd) {
-	case HDIO_GETGEO:
-		{
-			struct hd_geometry g;
-			i2o_block_biosparam(get_capacity(disk),
-					    &g.cylinders, &g.heads, &g.sectors);
-			g.start = get_start_sect(inode->i_bdev);
-			return copy_to_user(argp, &g, sizeof(g)) ? -EFAULT : 0;
-		}
-
 	case BLKI2OGRSTRAT:
 		return put_user(dev->rcache, (int __user *)arg);
 	case BLKI2OGWSTRAT:
@@ -962,6 +959,7 @@ static struct block_device_operations i2o_block_fops = {
 	.open = i2o_block_open,
 	.release = i2o_block_release,
 	.ioctl = i2o_block_ioctl,
+	.getgeo = i2o_block_getgeo,
 	.media_changed = i2o_block_media_changed
 };
 

drivers/mmc/mmc_block.c

@@ -113,31 +113,18 @@ static int mmc_blk_release(struct inode *inode, struct file *filp)
 }
 
 static int
-mmc_blk_ioctl(struct inode *inode, struct file *filp, unsigned int cmd, unsigned long arg)
+mmc_blk_getgeo(struct block_device *bdev, struct hd_geometry *geo)
 {
-	struct block_device *bdev = inode->i_bdev;
-
-	if (cmd == HDIO_GETGEO) {
-		struct hd_geometry geo;
-
-		memset(&geo, 0, sizeof(struct hd_geometry));
-
-		geo.cylinders	= get_capacity(bdev->bd_disk) / (4 * 16);
-		geo.heads	= 4;
-		geo.sectors	= 16;
-		geo.start	= get_start_sect(bdev);
-
-		return copy_to_user((void __user *)arg, &geo, sizeof(geo))
-			? -EFAULT : 0;
-	}
-
-	return -ENOTTY;
+	geo->cylinders = get_capacity(bdev->bd_disk) / (4 * 16);
+	geo->heads = 4;
+	geo->sectors = 16;
+	return 0;
 }
 
 static struct block_device_operations mmc_bdops = {
 	.open			= mmc_blk_open,
 	.release		= mmc_blk_release,
-	.ioctl			= mmc_blk_ioctl,
+	.getgeo			= mmc_blk_getgeo,
 	.owner			= THIS_MODULE,
 };
 

drivers/mtd/mtd_blkdevs.c

@@ -194,6 +194,14 @@ static int blktrans_release(struct inode *i, struct file *f)
 	return ret;
 }
 
+static int blktrans_getgeo(struct block_device *bdev, struct hd_geometry *geo)
+{
+	struct mtd_blktrans_dev *dev = bdev->bd_disk->private_data;
+
+	if (dev->tr->getgeo)
+		return dev->tr->getgeo(dev, geo);
+	return -ENOTTY;
+}
 
 static int blktrans_ioctl(struct inode *inode, struct file *file,
 			      unsigned int cmd, unsigned long arg)
@@ -207,22 +215,6 @@ static int blktrans_ioctl(struct inode *inode, struct file *file,
 			return tr->flush(dev);
 		/* The core code did the work, we had nothing to do. */
 		return 0;
-
-	case HDIO_GETGEO:
-		if (tr->getgeo) {
-			struct hd_geometry g;
-			int ret;
-
-			memset(&g, 0, sizeof(g));
-			ret = tr->getgeo(dev, &g);
-			if (ret)
-				return ret;
-
-			g.start = get_start_sect(inode->i_bdev);
-			if (copy_to_user((void __user *)arg, &g, sizeof(g)))
-				return -EFAULT;
-			return 0;
-		} /* else */
 	default:
 		return -ENOTTY;
 	}
@@ -233,6 +225,7 @@ struct block_device_operations mtd_blktrans_ops = {
 	.open		= blktrans_open,
 	.release	= blktrans_release,
 	.ioctl		= blktrans_ioctl,
+	.getgeo		= blktrans_getgeo,
 };
 
 int add_mtd_blktrans_dev(struct mtd_blktrans_dev *new)

drivers/s390/block/dasd.c

@@ -18,6 +18,7 @@
 #include <linux/major.h>
 #include <linux/slab.h>
 #include <linux/buffer_head.h>
+#include <linux/hdreg.h>
 
 #include <asm/ccwdev.h>
 #include <asm/ebcdic.h>
@@ -1723,12 +1724,34 @@ dasd_release(struct inode *inp, struct file *filp)
 	return 0;
 }
 
+/*
+ * Return disk geometry.
+ */
+static int
+dasd_getgeo(struct block_device *bdev, struct hd_geometry *geo)
+{
+	struct dasd_device *device;
+
+	device = bdev->bd_disk->private_data;
+	if (!device)
+		return -ENODEV;
+
+	if (!device->discipline ||
+	    !device->discipline->fill_geometry)
+		return -EINVAL;
+
+	device->discipline->fill_geometry(device, geo);
+	geo->start = get_start_sect(bdev) >> device->s2b_shift;
+	return 0;
+}
+
 struct block_device_operations
 dasd_device_operations = {
 	.owner		= THIS_MODULE,
 	.open		= dasd_open,
 	.release	= dasd_release,
 	.ioctl		= dasd_ioctl,
+	.getgeo		= dasd_getgeo,
 };
 
 

drivers/s390/block/dasd_ioctl.c

@@ -485,33 +485,6 @@ dasd_ioctl_set_ro(struct block_device *bdev, int no, long args)
 	return rc;
 }
 
-/*
- * Return disk geometry.
- */
-static int
-dasd_ioctl_getgeo(struct block_device *bdev, int no, long args)
-{
-	struct hd_geometry geo = { 0, };
-	struct dasd_device *device;
-
-	device =  bdev->bd_disk->private_data;
-	if (device == NULL)
-		return -ENODEV;
-
-	if (device == NULL || device->discipline == NULL ||
-	    device->discipline->fill_geometry == NULL)
-		return -EINVAL;
-
-	geo = (struct hd_geometry) {};
-	device->discipline->fill_geometry(device, &geo);
-	geo.start = get_start_sect(bdev) >> device->s2b_shift;
-	if (copy_to_user((struct hd_geometry __user *) args, &geo,
-			 sizeof (struct hd_geometry)))
-		return -EFAULT;
-
-	return 0;
-}
-
 /*
  * List of static ioctls.
  */
@@ -528,7 +501,6 @@ static struct { int no; dasd_ioctl_fn_t fn; } dasd_ioctls[] =
 	{ BIODASDPRRST, dasd_ioctl_reset_profile },
 	{ BLKROSET, dasd_ioctl_set_ro },
 	{ DASDAPIVER, dasd_ioctl_api_version },
-	{ HDIO_GETGEO, dasd_ioctl_getgeo },
 	{ -1, NULL }
 };
 

drivers/s390/block/xpram.c

@@ -328,31 +328,27 @@ fail:
 	return 0;
 }
 
-static int xpram_ioctl (struct inode *inode, struct file *filp,
-		 unsigned int cmd, unsigned long arg)
+static int xpram_getgeo(struct block_device *bdev, struct hd_geometry *geo)
 {
-	struct hd_geometry __user *geo;
 	unsigned long size;
-	if (cmd != HDIO_GETGEO)
-		return -EINVAL;
+
 	/*
 	 * get geometry: we have to fake one...  trim the size to a
 	 * multiple of 64 (32k): tell we have 16 sectors, 4 heads,
 	 * whatever cylinders. Tell also that data starts at sector. 4.
 	 */
-	geo = (struct hd_geometry __user *) arg;
 	size = (xpram_pages * 8) & ~0x3f;
-	put_user(size >> 6, &geo->cylinders);
-	put_user(4, &geo->heads);
-	put_user(16, &geo->sectors);
-	put_user(4, &geo->start);
+	geo->cylinders = size >> 6;
+	geo->heads = 4;
+	geo->sectors = 16;
+	geo->start = 4;
 	return 0;
 }
 
 static struct block_device_operations xpram_devops =
 {
 	.owner	= THIS_MODULE,
-	.ioctl	= xpram_ioctl,
+	.getgeo	= xpram_getgeo,
 };
 
 /*

drivers/scsi/sd.c

@@ -527,7 +527,7 @@ static int sd_release(struct inode *inode, struct file *filp)
 	return 0;
 }
 
-static int sd_hdio_getgeo(struct block_device *bdev, struct hd_geometry __user *loc)
+static int sd_getgeo(struct block_device *bdev, struct hd_geometry *geo)
 {
 	struct scsi_disk *sdkp = scsi_disk(bdev->bd_disk);
 	struct scsi_device *sdp = sdkp->device;
@@ -545,15 +545,9 @@ static int sd_hdio_getgeo(struct block_device *bdev, struct hd_geometry __user *
 	else
 		scsicam_bios_param(bdev, sdkp->capacity, diskinfo);
 
-	if (put_user(diskinfo[0], &loc->heads))
-		return -EFAULT;
-	if (put_user(diskinfo[1], &loc->sectors))
-		return -EFAULT;
-	if (put_user(diskinfo[2], &loc->cylinders))
-		return -EFAULT;
-	if (put_user((unsigned)get_start_sect(bdev),
-	             (unsigned long __user *)&loc->start))
-		return -EFAULT;
+	geo->heads = diskinfo[0];
+	geo->sectors = diskinfo[1];
+	geo->cylinders = diskinfo[2];
 	return 0;
 }
 
@@ -593,12 +587,6 @@ static int sd_ioctl(struct inode * inode, struct file * filp,
 	if (!scsi_block_when_processing_errors(sdp) || !error)
 		return error;
 
-	if (cmd == HDIO_GETGEO) {
-		if (!arg)
-			return -EINVAL;
-		return sd_hdio_getgeo(bdev, p);
-	}
-
 	/*
 	 * Send SCSI addressing ioctls directly to mid level, send other
 	 * ioctls to block level and then onto mid level if they can't be
@@ -800,6 +788,7 @@ static struct block_device_operations sd_fops = {
 	.open			= sd_open,
 	.release		= sd_release,
 	.ioctl			= sd_ioctl,
+	.getgeo			= sd_getgeo,
 #ifdef CONFIG_COMPAT
 	.compat_ioctl		= sd_compat_ioctl,
 #endif

include/linux/fs.h

@@ -224,6 +224,7 @@ extern int dir_notify_enable;
 #include <asm/semaphore.h>
 #include <asm/byteorder.h>
 
+struct hd_geometry;
 struct iovec;
 struct nameidata;
 struct kiocb;
@@ -962,6 +963,7 @@ struct block_device_operations {
 	int (*direct_access) (struct block_device *, sector_t, unsigned long *);
 	int (*media_changed) (struct gendisk *);
 	int (*revalidate_disk) (struct gendisk *);
+	int (*getgeo)(struct block_device *, struct hd_geometry *);
 	struct module *owner;
 };