[PATCH] switch floppy

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

1 files changed, 26 insertions, 25 deletions

diff --git a/drivers/block/floppy.c b/drivers/block/floppy.c
index 72363df58953..14db747a636e 100644
--- a/drivers/block/floppy.c
+++ b/drivers/block/floppy.c
@@ -3450,14 +3450,14 @@ static int fd_getgeo(struct block_device *bdev, struct hd_geometry *geo)
         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)
 {
-#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 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 i;
         int ret;
@@ -3516,11 +3516,11 @@ static int fd_ioctl(struct inode *inode, struct file *filp, unsigned int cmd,
                         current_type[drive] = NULL;
                         floppy_sizes[drive] = MAX_DISK_SIZE << 1;
                         UDRS->keep_data = 0;
-                        return invalidate_drive(inode->i_bdev);
+                        return invalidate_drive(bdev);
                 case FDSETPRM:
                 case FDDEFPRM:
                         return set_geometry(cmd, &inparam.g,
-                                            drive, type, inode->i_bdev);
+                                            drive, type, bdev);
                 case FDGETPRM:
                         ECALL(get_floppy_geometry(drive, type,
                                                   (struct floppy_struct **)
@@ -3551,7 +3551,7 @@ static int fd_ioctl(struct inode *inode, struct file *filp, unsigned int cmd,
                 case FDFMTEND:
                 case FDFLUSH:
                         LOCK_FDC(drive, 1);
-                        return invalidate_drive(inode->i_bdev);
+                        return invalidate_drive(bdev);
 
                 case FDSETEMSGTRESH:
                         UDP->max_errors.reporting =
@@ -3659,9 +3659,9 @@ static void __init config_types(void)
                 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);
         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
  * 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 old_dev;
+        int drive = (long)bdev->bd_disk->private_data;
+        int old_dev, new_dev;
         int try;
         int res = -EBUSY;
         char *tmp;
 
         mutex_lock(&open_lock);
         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;
 
         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);
         }
 
-        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;
 
-        if (filp->f_mode & FMODE_EXCL)
+        if (mode & FMODE_EXCL)
                 UDRS->fd_ref = -1;
         else
                 UDRS->fd_ref++;
 
-        opened_bdev[drive] = inode->i_bdev;
+        opened_bdev[drive] = bdev;
 
         res = -ENXIO;
 
@@ -3743,9 +3743,10 @@ static int floppy_open(struct inode *inode, struct file *filp)
                 }
         }
 
-        UDRS->fd_device = iminor(inode);
-        set_capacity(disks[drive], floppy_sizes[iminor(inode)]);
-        if (old_dev != -1 && old_dev != iminor(inode)) {
+        new_dev = MINOR(bdev->bd_dev);
+        UDRS->fd_device = new_dev;
+        set_capacity(disks[drive], floppy_sizes[new_dev]);
+        if (old_dev != -1 && old_dev != new_dev) {
                 if (buffer_drive == drive)
                         buffer_track = -1;
         }
@@ -3753,15 +3754,15 @@ static int floppy_open(struct inode *inode, struct file *filp)
         if (UFDCS->rawcmd == 1)
                 UFDCS->rawcmd = 2;
 
-        if (!(filp->f_mode & FMODE_NDELAY)) {
-                if (filp->f_mode & (FMODE_READ|FMODE_WRITE)) {
+        if (!(mode & FMODE_NDELAY)) {
+                if (mode & (FMODE_READ|FMODE_WRITE)) {
                         UDRS->last_checked = 0;
-                        check_disk_change(inode->i_bdev);
+                        check_disk_change(bdev);
                         if (UTESTF(FD_DISK_CHANGED))
                                 goto out;
                 }
                 res = -EROFS;
-                if ((filp->f_mode & FMODE_WRITE) && !(UTESTF(FD_DISK_WRITABLE)))
+                if ((mode & FMODE_WRITE) && !(UTESTF(FD_DISK_WRITABLE)))
                         goto out;
         }
         mutex_unlock(&open_lock);
@@ -3902,9 +3903,9 @@ static int floppy_revalidate(struct gendisk *disk)
 
 static struct block_device_operations floppy_fops = {
         .owner                  = THIS_MODULE,
-        .__open                 = floppy_open,
-        .__release              = floppy_release,
-        .__ioctl                        = fd_ioctl,
+        .open                   = floppy_open,
+        .release                = floppy_release,
+        .locked_ioctl           = fd_ioctl,
         .getgeo                 = fd_getgeo,
         .media_changed          = check_floppy_change,
         .revalidate_disk        = floppy_revalidate,