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[PATCH] ->compat_ioctl for 390 tape_char 

The only own ioctl, TAPE390_DISPLAY, is compat_clean, everything else is
routed through common translation code.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Christoph Hellwig 2006-01-09 20:52:07 -08:00 committed by Linus Torvalds
parent 51a990588a
commit f042e0f80b
2 changed files with 20 additions and 2 deletions
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2
arch/s390/kernel/compat_ioctl.c
View File

@ -63,8 +63,6 @@ COMPATIBLE_IOCTL(BIODASDSATTR)
COMPATIBLE_IOCTL(BIODASDCMFENABLE)
COMPATIBLE_IOCTL(BIODASDCMFDISABLE)
COMPATIBLE_IOCTL(BIODASDREADALLCMB)
COMPATIBLE_IOCTL(TAPE390_DISPLAY)
};
int ioctl_table_size = ARRAY_SIZE(ioctl_start);

20
drivers/s390/char/tape_char.c
View File

@ -37,6 +37,8 @@ static int tapechar_open(struct inode *,struct file *);
static int tapechar_release(struct inode *,struct file *);
static int tapechar_ioctl(struct inode *, struct file *, unsigned int,
unsigned long);
static long tapechar_compat_ioctl(struct file *, unsigned int,
unsigned long);
static struct file_operations tape_fops =
{
@ -44,6 +46,7 @@ static struct file_operations tape_fops =
.read = tapechar_read,
.write = tapechar_write,
.ioctl = tapechar_ioctl,
.compat_ioctl = tapechar_compat_ioctl,
.open = tapechar_open,
.release = tapechar_release,
};
@ -463,6 +466,23 @@ tapechar_ioctl(struct inode *inp, struct file *filp,
return device->discipline->ioctl_fn(device, no, data);
}
static long
tapechar_compat_ioctl(struct file *filp, unsigned int no, unsigned long data)
{
struct tape_device *device = filp->private_data;
int rval = -ENOIOCTLCMD;
if (device->discipline->ioctl_fn) {
lock_kernel();
rval = device->discipline->ioctl_fn(device, no, data);
unlock_kernel();
if (rval == -EINVAL)
rval = -ENOIOCTLCMD;
}
return rval;
}
/*
* Initialize character device frontend.
*/