Re: [PATCH] Fix root hole in raw device
From: Peter Osterlund
Date: Sun May 22 2005 - 06:57:31 EST
Al Viro <viro@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx> writes:
> On Tue, May 17, 2005 at 02:04:42PM +0100, Stephen C. Tweedie wrote:
> >
> > On Tue, 2005-05-17 at 05:57, Al Viro wrote:
> >
> > > That is not quite correct. You are passing very odd filp to ->ioctl()...
> > > Old variant gave NULL, which is also not too nice, though.
> >
> > Which would you prefer? I guess that if there _are_ going to be
> > problems, we'd be better off finding them early by passing in the NULL
> > value.
>
> For now I'd rather pass NULL. Longer term (== post 2.6.12, since There Is No
> 2.7(tm)) - just remove the struct file * argument of bdev ioctl and have
> int flags used instead, with "opened for write" and "opened non-blocking"
> passed in it. And switch the inode argument to bdev...
Switching the inode argument to bdev would first require doing the
same switch in cdrom_ioctl(), which the patch below does.
-
This patch changes cdrom_ioctl() to take a struct block_device pointer
instead of a struct inode pointer.
Signed-off-by: Peter Osterlund <petero2@xxxxxxxxx>
---
linux-petero/drivers/block/paride/pcd.c | 2 +-
linux-petero/drivers/cdrom/cdrom.c | 6 +++---
linux-petero/drivers/cdrom/cdu31a.c | 2 +-
linux-petero/drivers/cdrom/cm206.c | 2 +-
linux-petero/drivers/cdrom/mcdx.c | 2 +-
linux-petero/drivers/cdrom/sbpcd.c | 2 +-
linux-petero/drivers/cdrom/viocd.c | 2 +-
linux-petero/drivers/ide/ide-cd.c | 2 +-
linux-petero/drivers/scsi/sr.c | 2 +-
linux-petero/include/linux/cdrom.h | 2 +-
10 files changed, 12 insertions(+), 12 deletions(-)
diff -puN drivers/block/paride/pcd.c~cdrom_ioctl_use_bdev drivers/block/paride/pcd.c
--- linux/drivers/block/paride/pcd.c~cdrom_ioctl_use_bdev 2005-05-22 11:05:25.000000000 +0200
+++ linux-petero/drivers/block/paride/pcd.c 2005-05-22 12:47:07.000000000 +0200
@@ -239,7 +239,7 @@ static int pcd_block_ioctl(struct inode
unsigned cmd, unsigned long arg)
{
struct pcd_unit *cd = inode->i_bdev->bd_disk->private_data;
- return cdrom_ioctl(file, &cd->info, inode, cmd, arg);
+ return cdrom_ioctl(file, &cd->info, inode->i_bdev, cmd, arg);
}
static int pcd_block_media_changed(struct gendisk *disk)
diff -puN drivers/cdrom/cdrom.c~cdrom_ioctl_use_bdev drivers/cdrom/cdrom.c
--- linux/drivers/cdrom/cdrom.c~cdrom_ioctl_use_bdev 2005-05-22 10:58:31.000000000 +0200
+++ linux-petero/drivers/cdrom/cdrom.c 2005-05-22 10:59:59.000000000 +0200
@@ -2196,13 +2196,13 @@ retry:
* mmc_ioct().
*/
int cdrom_ioctl(struct file * file, struct cdrom_device_info *cdi,
- struct inode *ip, unsigned int cmd, unsigned long arg)
+ struct block_device *bdev, unsigned int cmd, unsigned long arg)
{
struct cdrom_device_ops *cdo = cdi->ops;
int ret;
/* Try the generic SCSI command ioctl's first.. */
- ret = scsi_cmd_ioctl(file, ip->i_bdev->bd_disk, cmd, (void __user *)arg);
+ ret = scsi_cmd_ioctl(file, bdev->bd_disk, cmd, (void __user *)arg);
if (ret != -ENOTTY)
return ret;
@@ -2355,7 +2355,7 @@ int cdrom_ioctl(struct file * file, stru
cdinfo(CD_DO_IOCTL, "entering CDROM_RESET\n");
if (!CDROM_CAN(CDC_RESET))
return -ENOSYS;
- invalidate_bdev(ip->i_bdev, 0);
+ invalidate_bdev(bdev, 0);
return cdo->reset(cdi);
}
diff -puN drivers/cdrom/cdu31a.c~cdrom_ioctl_use_bdev drivers/cdrom/cdu31a.c
--- linux/drivers/cdrom/cdu31a.c~cdrom_ioctl_use_bdev 2005-05-22 11:04:28.000000000 +0200
+++ linux-petero/drivers/cdrom/cdu31a.c 2005-05-22 12:47:07.000000000 +0200
@@ -2937,7 +2937,7 @@ static int scd_block_ioctl(struct inode
retval = scd_tray_move(&scd_info, 0);
break;
default:
- retval = cdrom_ioctl(file, &scd_info, inode, cmd, arg);
+ retval = cdrom_ioctl(file, &scd_info, inode->i_bdev, cmd, arg);
}
return retval;
}
diff -puN drivers/cdrom/cm206.c~cdrom_ioctl_use_bdev drivers/cdrom/cm206.c
--- linux/drivers/cdrom/cm206.c~cdrom_ioctl_use_bdev 2005-05-22 11:05:04.000000000 +0200
+++ linux-petero/drivers/cdrom/cm206.c 2005-05-22 12:47:07.000000000 +0200
@@ -1363,7 +1363,7 @@ static int cm206_block_release(struct in
static int cm206_block_ioctl(struct inode *inode, struct file *file,
unsigned cmd, unsigned long arg)
{
- return cdrom_ioctl(file, &cm206_info, inode, cmd, arg);
+ return cdrom_ioctl(file, &cm206_info, inode->i_bdev, cmd, arg);
}
static int cm206_block_media_changed(struct gendisk *disk)
diff -puN drivers/cdrom/mcdx.c~cdrom_ioctl_use_bdev drivers/cdrom/mcdx.c
--- linux/drivers/cdrom/mcdx.c~cdrom_ioctl_use_bdev 2005-05-22 11:03:49.000000000 +0200
+++ linux-petero/drivers/cdrom/mcdx.c 2005-05-22 12:47:07.000000000 +0200
@@ -228,7 +228,7 @@ static int mcdx_block_ioctl(struct inode
unsigned cmd, unsigned long arg)
{
struct s_drive_stuff *p = inode->i_bdev->bd_disk->private_data;
- return cdrom_ioctl(file, &p->info, inode, cmd, arg);
+ return cdrom_ioctl(file, &p->info, inode->i_bdev, cmd, arg);
}
static int mcdx_block_media_changed(struct gendisk *disk)
diff -puN drivers/cdrom/sbpcd.c~cdrom_ioctl_use_bdev drivers/cdrom/sbpcd.c
--- linux/drivers/cdrom/sbpcd.c~cdrom_ioctl_use_bdev 2005-05-22 11:05:10.000000000 +0200
+++ linux-petero/drivers/cdrom/sbpcd.c 2005-05-22 12:47:07.000000000 +0200
@@ -5373,7 +5373,7 @@ static int sbpcd_block_ioctl(struct inod
unsigned cmd, unsigned long arg)
{
struct sbpcd_drive *p = inode->i_bdev->bd_disk->private_data;
- return cdrom_ioctl(file, p->sbpcd_infop, inode, cmd, arg);
+ return cdrom_ioctl(file, p->sbpcd_infop, inode->i_bdev, cmd, arg);
}
static int sbpcd_block_media_changed(struct gendisk *disk)
diff -puN drivers/cdrom/viocd.c~cdrom_ioctl_use_bdev drivers/cdrom/viocd.c
--- linux/drivers/cdrom/viocd.c~cdrom_ioctl_use_bdev 2005-05-22 11:04:56.000000000 +0200
+++ linux-petero/drivers/cdrom/viocd.c 2005-05-22 12:47:07.000000000 +0200
@@ -201,7 +201,7 @@ static int viocd_blk_ioctl(struct inode
unsigned cmd, unsigned long arg)
{
struct disk_info *di = inode->i_bdev->bd_disk->private_data;
- return cdrom_ioctl(file, &di->viocd_info, inode, cmd, arg);
+ return cdrom_ioctl(file, &di->viocd_info, inode->i_bdev, cmd, arg);
}
static int viocd_blk_media_changed(struct gendisk *disk)
diff -puN drivers/ide/ide-cd.c~cdrom_ioctl_use_bdev drivers/ide/ide-cd.c
--- linux/drivers/ide/ide-cd.c~cdrom_ioctl_use_bdev 2005-05-22 11:01:21.000000000 +0200
+++ linux-petero/drivers/ide/ide-cd.c 2005-05-22 12:47:07.000000000 +0200
@@ -3384,7 +3384,7 @@ static int idecd_ioctl (struct inode *in
err = generic_ide_ioctl(info->drive, file, bdev, cmd, arg);
if (err == -EINVAL)
- err = cdrom_ioctl(file, &info->devinfo, inode, cmd, arg);
+ err = cdrom_ioctl(file, &info->devinfo, inode->i_bdev, cmd, arg);
return err;
}
diff -puN drivers/scsi/sr.c~cdrom_ioctl_use_bdev drivers/scsi/sr.c
--- linux/drivers/scsi/sr.c~cdrom_ioctl_use_bdev 2005-05-22 11:01:56.000000000 +0200
+++ linux-petero/drivers/scsi/sr.c 2005-05-22 12:47:08.000000000 +0200
@@ -502,7 +502,7 @@ static int sr_block_ioctl(struct inode *
case SCSI_IOCTL_GET_BUS_NUMBER:
return scsi_ioctl(sdev, cmd, (void __user *)arg);
}
- return cdrom_ioctl(file, &cd->cdi, inode, cmd, arg);
+ return cdrom_ioctl(file, &cd->cdi, inode->i_bdev, cmd, arg);
}
static int sr_block_media_changed(struct gendisk *disk)
diff -puN include/linux/cdrom.h~cdrom_ioctl_use_bdev include/linux/cdrom.h
--- linux/include/linux/cdrom.h~cdrom_ioctl_use_bdev 2005-05-22 11:00:12.000000000 +0200
+++ linux-petero/include/linux/cdrom.h 2005-05-22 11:00:19.000000000 +0200
@@ -990,7 +990,7 @@ extern int cdrom_open(struct cdrom_devic
struct file *fp);
extern int cdrom_release(struct cdrom_device_info *cdi, struct file *fp);
extern int cdrom_ioctl(struct file *file, struct cdrom_device_info *cdi,
- struct inode *ip, unsigned int cmd, unsigned long arg);
+ struct block_device *bdev, unsigned int cmd, unsigned long arg);
extern int cdrom_media_changed(struct cdrom_device_info *);
extern int register_cdrom(struct cdrom_device_info *cdi);
_
--
Peter Osterlund - petero2@xxxxxxxxx
http://web.telia.com/~u89404340
-
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