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[PATCH] switch floppy

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Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
This commit is contained in:
Al Viro 2008-03-02 09:27:55 -05:00
parent 47844fadb5
commit a4af9b48cb
1 changed files with 26 additions and 25 deletions
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51
drivers/block/floppy.c
View file

@ -3450,14 +3450,14 @@ static int fd_getgeo(struct block_device *bdev, struct hd_geometry *geo)
return 0; return 0;
} }
static int fd_ioctl(struct inode *inode, struct file *filp, unsigned int cmd, static int fd_ioctl(struct block_device *bdev, fmode_t mode, unsigned int cmd,
unsigned long param) unsigned long param)
{ {
#define FD_IOCTL_ALLOWED ((filp) && (filp)->f_mode & (FMODE_WRITE|FMODE_WRITE_IOCTL)) #define FD_IOCTL_ALLOWED (mode & (FMODE_WRITE|FMODE_WRITE_IOCTL))
#define OUT(c,x) case c: outparam = (const char *) (x); break #define OUT(c,x) case c: outparam = (const char *) (x); break
#define IN(c,x,tag) case c: *(x) = inparam. tag ; return 0 #define IN(c,x,tag) case c: *(x) = inparam. tag ; return 0
int drive = (long)inode->i_bdev->bd_disk->private_data; int drive = (long)bdev->bd_disk->private_data;
int type = ITYPE(UDRS->fd_device); int type = ITYPE(UDRS->fd_device);
int i; int i;
int ret; int ret;
@ -3516,11 +3516,11 @@ static int fd_ioctl(struct inode *inode, struct file *filp, unsigned int cmd,
current_type[drive] = NULL; current_type[drive] = NULL;
floppy_sizes[drive] = MAX_DISK_SIZE << 1; floppy_sizes[drive] = MAX_DISK_SIZE << 1;
UDRS->keep_data = 0; UDRS->keep_data = 0;
return invalidate_drive(inode->i_bdev); return invalidate_drive(bdev);
case FDSETPRM: case FDSETPRM:
case FDDEFPRM: case FDDEFPRM:
return set_geometry(cmd, &inparam.g, return set_geometry(cmd, &inparam.g,
drive, type, inode->i_bdev); drive, type, bdev);
case FDGETPRM: case FDGETPRM:
ECALL(get_floppy_geometry(drive, type, ECALL(get_floppy_geometry(drive, type,
(struct floppy_struct **) (struct floppy_struct **)
@ -3551,7 +3551,7 @@ static int fd_ioctl(struct inode *inode, struct file *filp, unsigned int cmd,
case FDFMTEND: case FDFMTEND:
case FDFLUSH: case FDFLUSH:
LOCK_FDC(drive, 1); LOCK_FDC(drive, 1);
return invalidate_drive(inode->i_bdev); return invalidate_drive(bdev);
case FDSETEMSGTRESH: case FDSETEMSGTRESH:
UDP->max_errors.reporting = UDP->max_errors.reporting =
@ -3659,9 +3659,9 @@ static void __init config_types(void)
printk("\n"); printk("\n");
} }
static int floppy_release(struct inode *inode, struct file *filp) static int floppy_release(struct gendisk *disk, fmode_t mode)
{ {
int drive = (long)inode->i_bdev->bd_disk->private_data; int drive = (long)disk->private_data;
mutex_lock(&open_lock); mutex_lock(&open_lock);
if (UDRS->fd_ref < 0) if (UDRS->fd_ref < 0)
@ -3682,17 +3682,17 @@ static int floppy_release(struct inode *inode, struct file *filp)
* /dev/PS0 etc), and disallows simultaneous access to the same * /dev/PS0 etc), and disallows simultaneous access to the same
* drive with different device numbers. * drive with different device numbers.
*/ */
static int floppy_open(struct inode *inode, struct file *filp) static int floppy_open(struct block_device *bdev, fmode_t mode)
{ {
int drive = (long)inode->i_bdev->bd_disk->private_data; int drive = (long)bdev->bd_disk->private_data;
int old_dev; int old_dev, new_dev;
int try; int try;
int res = -EBUSY; int res = -EBUSY;
char *tmp; char *tmp;
mutex_lock(&open_lock); mutex_lock(&open_lock);
old_dev = UDRS->fd_device; old_dev = UDRS->fd_device;
if (opened_bdev[drive] && opened_bdev[drive] != inode->i_bdev) if (opened_bdev[drive] && opened_bdev[drive] != bdev)
goto out2; goto out2;
if (!UDRS->fd_ref && (UDP->flags & FD_BROKEN_DCL)) { if (!UDRS->fd_ref && (UDP->flags & FD_BROKEN_DCL)) {
@ -3700,15 +3700,15 @@ static int floppy_open(struct inode *inode, struct file *filp)
USETF(FD_VERIFY); USETF(FD_VERIFY);
} }
if (UDRS->fd_ref == -1 || (UDRS->fd_ref && (filp->f_mode & FMODE_EXCL))) if (UDRS->fd_ref == -1 || (UDRS->fd_ref && (mode & FMODE_EXCL)))
goto out2; goto out2;
if (filp->f_mode & FMODE_EXCL) if (mode & FMODE_EXCL)
UDRS->fd_ref = -1; UDRS->fd_ref = -1;
else else
UDRS->fd_ref++; UDRS->fd_ref++;
opened_bdev[drive] = inode->i_bdev; opened_bdev[drive] = bdev;
res = -ENXIO; res = -ENXIO;
@ -3743,9 +3743,10 @@ static int floppy_open(struct inode *inode, struct file *filp)
} }
} }
UDRS->fd_device = iminor(inode); new_dev = MINOR(bdev->bd_dev);
set_capacity(disks[drive], floppy_sizes[iminor(inode)]); UDRS->fd_device = new_dev;
if (old_dev != -1 && old_dev != iminor(inode)) { set_capacity(disks[drive], floppy_sizes[new_dev]);
if (old_dev != -1 && old_dev != new_dev) {
if (buffer_drive == drive) if (buffer_drive == drive)
buffer_track = -1; buffer_track = -1;
} }
@ -3753,15 +3754,15 @@ static int floppy_open(struct inode *inode, struct file *filp)
if (UFDCS->rawcmd == 1) if (UFDCS->rawcmd == 1)
UFDCS->rawcmd = 2; UFDCS->rawcmd = 2;
if (!(filp->f_mode & FMODE_NDELAY)) { if (!(mode & FMODE_NDELAY)) {
if (filp->f_mode & (FMODE_READ|FMODE_WRITE)) { if (mode & (FMODE_READ|FMODE_WRITE)) {
UDRS->last_checked = 0; UDRS->last_checked = 0;
check_disk_change(inode->i_bdev); check_disk_change(bdev);
if (UTESTF(FD_DISK_CHANGED)) if (UTESTF(FD_DISK_CHANGED))
goto out; goto out;
} }
res = -EROFS; res = -EROFS;
if ((filp->f_mode & FMODE_WRITE) && !(UTESTF(FD_DISK_WRITABLE))) if ((mode & FMODE_WRITE) && !(UTESTF(FD_DISK_WRITABLE)))
goto out; goto out;
} }
mutex_unlock(&open_lock); mutex_unlock(&open_lock);
@ -3902,9 +3903,9 @@ static int floppy_revalidate(struct gendisk *disk)
static struct block_device_operations floppy_fops = { static struct block_device_operations floppy_fops = {
.owner = THIS_MODULE, .owner = THIS_MODULE,
.__open = floppy_open, .open = floppy_open,
.__release = floppy_release, .release = floppy_release,
.__ioctl = fd_ioctl, .locked_ioctl = fd_ioctl,
.getgeo = fd_getgeo, .getgeo = fd_getgeo,
.media_changed = check_floppy_change, .media_changed = check_floppy_change,
.revalidate_disk = floppy_revalidate, .revalidate_disk = floppy_revalidate,