107 files changed, 868 insertions, 1002 deletions

diff --git a/arch/um/drivers/ubd_kern.c b/arch/um/drivers/ubd_kern.c
index b58fb8941d8d..0a868118cf06 100644
--- a/arch/um/drivers/ubd_kern.c
+++ b/arch/um/drivers/ubd_kern.c
@@ -98,9 +98,9 @@ static inline void ubd_set_bit(__u64 bit, unsigned char *data)
 
 static DEFINE_MUTEX(ubd_lock);
 
-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,
+static int ubd_open(struct block_device *bdev, fmode_t mode);
+static int ubd_release(struct gendisk *disk, fmode_t mode);
+static int ubd_ioctl(struct block_device *bdev, fmode_t mode,
                      unsigned int cmd, unsigned long arg);
 static int ubd_getgeo(struct block_device *bdev, struct hd_geometry *geo);
 
@@ -1112,9 +1112,9 @@ static int __init ubd_driver_init(void){
 
 device_initcall(ubd_driver_init);
 
-static int ubd_open(struct inode *inode, struct file *filp)
+static int ubd_open(struct block_device *bdev, fmode_t mode)
 {
-        struct gendisk *disk = inode->i_bdev->bd_disk;
+        struct gendisk *disk = bdev->bd_disk;
         struct ubd *ubd_dev = disk->private_data;
         int err = 0;
 
@@ -1131,7 +1131,7 @@ static int ubd_open(struct inode *inode, struct file *filp)
 
         /* This should no more be needed. And it didn't work anyway to exclude
          * read-write remounting of filesystems.*/
-        /*if((filp->f_mode & FMODE_WRITE) && !ubd_dev->openflags.w){
+        /*if((mode & FMODE_WRITE) && !ubd_dev->openflags.w){
                 if(--ubd_dev->count == 0) ubd_close_dev(ubd_dev);
                 err = -EROFS;
         }*/
@@ -1139,9 +1139,8 @@ static int ubd_open(struct inode *inode, struct file *filp)
         return err;
 }
 
-static int ubd_release(struct inode * inode, struct file * file)
+static int ubd_release(struct gendisk *disk, fmode_t mode)
 {
-        struct gendisk *disk = inode->i_bdev->bd_disk;
         struct ubd *ubd_dev = disk->private_data;
 
         if(--ubd_dev->count == 0)
@@ -1306,10 +1305,10 @@ static int ubd_getgeo(struct block_device *bdev, struct hd_geometry *geo)
         return 0;
 }
 
-static int ubd_ioctl(struct inode * inode, struct file * file,
+static int ubd_ioctl(struct block_device *bdev, fmode_t mode,
                      unsigned int cmd, unsigned long arg)
 {
-        struct ubd *ubd_dev = inode->i_bdev->bd_disk->private_data;
+        struct ubd *ubd_dev = bdev->bd_disk->private_data;
         struct hd_driveid ubd_id = {
                 .cyls           = 0,
                 .heads          = 128,
diff --git a/block/bsg.c b/block/bsg.c
index 034112bfe1f3..e8bd2475682a 100644
--- a/block/bsg.c
+++ b/block/bsg.c
@@ -173,7 +173,7 @@ unlock:
 
 static int blk_fill_sgv4_hdr_rq(struct request_queue *q, struct request *rq,
                                 struct sg_io_v4 *hdr, struct bsg_device *bd,
-                                int has_write_perm)
+                                fmode_t has_write_perm)
 {
         if (hdr->request_len > BLK_MAX_CDB) {
                 rq->cmd = kzalloc(hdr->request_len, GFP_KERNEL);
@@ -242,7 +242,7 @@ bsg_validate_sgv4_hdr(struct request_queue *q, struct sg_io_v4 *hdr, int *rw)
  * map sg_io_v4 to a request.
  */
 static struct request *
-bsg_map_hdr(struct bsg_device *bd, struct sg_io_v4 *hdr, int has_write_perm)
+bsg_map_hdr(struct bsg_device *bd, struct sg_io_v4 *hdr, fmode_t has_write_perm)
 {
         struct request_queue *q = bd->queue;
         struct request *rq, *next_rq = NULL;
@@ -601,7 +601,8 @@ bsg_read(struct file *file, char __user *buf, size_t count, loff_t *ppos)
 }
 
 static int __bsg_write(struct bsg_device *bd, const char __user *buf,
-                       size_t count, ssize_t *bytes_written, int has_write_perm)
+                       size_t count, ssize_t *bytes_written,
+                       fmode_t has_write_perm)
 {
         struct bsg_command *bc;
         struct request *rq;
@@ -913,7 +914,7 @@ static long bsg_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
         case SG_EMULATED_HOST:
         case SCSI_IOCTL_SEND_COMMAND: {
                 void __user *uarg = (void __user *) arg;
-                return scsi_cmd_ioctl(file, bd->queue, NULL, cmd, uarg);
+                return scsi_cmd_ioctl(bd->queue, NULL, file->f_mode, cmd, uarg);
         }
         case SG_IO: {
                 struct request *rq;
diff --git a/block/cmd-filter.c b/block/cmd-filter.c
index e669aed4c6bc..504b275e1b90 100644
--- a/block/cmd-filter.c
+++ b/block/cmd-filter.c
@@ -27,7 +27,7 @@
 #include <linux/cdrom.h>
 
 int blk_verify_command(struct blk_cmd_filter *filter,
-                       unsigned char *cmd, int has_write_perm)
+                       unsigned char *cmd, fmode_t has_write_perm)
 {
         /* root can do any command. */
         if (capable(CAP_SYS_RAWIO))
diff --git a/block/compat_ioctl.c b/block/compat_ioctl.c
index 1e559fba7bdf..3098c92402fd 100644
--- a/block/compat_ioctl.c
+++ b/block/compat_ioctl.c
@@ -71,8 +71,8 @@ static int compat_hdio_getgeo(struct gendisk *disk, struct block_device *bdev,
         return ret;
 }
 
-static int compat_hdio_ioctl(struct inode *inode, struct file *file,
-                struct gendisk *disk, unsigned int cmd, unsigned long arg)
+static int compat_hdio_ioctl(struct block_device *bdev, fmode_t mode,
+                unsigned int cmd, unsigned long arg)
 {
         mm_segment_t old_fs = get_fs();
         unsigned long kval;
@@ -80,7 +80,7 @@ static int compat_hdio_ioctl(struct inode *inode, struct file *file,
         int error;
 
         set_fs(KERNEL_DS);
-        error = blkdev_driver_ioctl(inode, file, disk,
+        error = __blkdev_driver_ioctl(bdev, mode,
                                 cmd, (unsigned long)(&kval));
         set_fs(old_fs);
 
@@ -111,8 +111,8 @@ struct compat_cdrom_generic_command {
         compat_caddr_t  reserved[1];
 };
 
-static int compat_cdrom_read_audio(struct inode *inode, struct file *file,
-                struct gendisk *disk, unsigned int cmd, unsigned long arg)
+static int compat_cdrom_read_audio(struct block_device *bdev, fmode_t mode,
+                unsigned int cmd, unsigned long arg)
 {
         struct cdrom_read_audio __user *cdread_audio;
         struct compat_cdrom_read_audio __user *cdread_audio32;
@@ -134,12 +134,12 @@ static int compat_cdrom_read_audio(struct inode *inode, struct file *file,
         if (put_user(datap, &cdread_audio->buf))
                 return -EFAULT;
 
-        return blkdev_driver_ioctl(inode, file, disk, cmd,
+        return __blkdev_driver_ioctl(bdev, mode, cmd,
                         (unsigned long)cdread_audio);
 }
 
-static int compat_cdrom_generic_command(struct inode *inode, struct file *file,
-                struct gendisk *disk, unsigned int cmd, unsigned long arg)
+static int compat_cdrom_generic_command(struct block_device *bdev, fmode_t mode,
+                unsigned int cmd, unsigned long arg)
 {
         struct cdrom_generic_command __user *cgc;
         struct compat_cdrom_generic_command __user *cgc32;
@@ -167,7 +167,7 @@ static int compat_cdrom_generic_command(struct inode *inode, struct file *file,
             put_user(compat_ptr(data), &cgc->reserved[0]))
                 return -EFAULT;
 
-        return blkdev_driver_ioctl(inode, file, disk, cmd, (unsigned long)cgc);
+        return __blkdev_driver_ioctl(bdev, mode, cmd, (unsigned long)cgc);
 }
 
 struct compat_blkpg_ioctl_arg {
@@ -177,7 +177,7 @@ struct compat_blkpg_ioctl_arg {
         compat_caddr_t data;
 };
 
-static int compat_blkpg_ioctl(struct inode *inode, struct file *file,
+static int compat_blkpg_ioctl(struct block_device *bdev, fmode_t mode,
                 unsigned int cmd, struct compat_blkpg_ioctl_arg __user *ua32)
 {
         struct blkpg_ioctl_arg __user *a = compat_alloc_user_space(sizeof(*a));
@@ -196,7 +196,7 @@ static int compat_blkpg_ioctl(struct inode *inode, struct file *file,
         if (err)
                 return err;
 
-        return blkdev_ioctl(inode, file, cmd, (unsigned long)a);
+        return blkdev_ioctl(bdev, mode, cmd, (unsigned long)a);
 }
 
 #define BLKBSZGET_32            _IOR(0x12, 112, int)
@@ -308,8 +308,8 @@ static struct {
 
 #define NR_FD_IOCTL_TRANS ARRAY_SIZE(fd_ioctl_trans_table)
 
-static int compat_fd_ioctl(struct inode *inode, struct file *file,
-                struct gendisk *disk, unsigned int cmd, unsigned long arg)
+static int compat_fd_ioctl(struct block_device *bdev, fmode_t mode,
+                unsigned int cmd, unsigned long arg)
 {
         mm_segment_t old_fs = get_fs();
         void *karg = NULL;
@@ -413,7 +413,7 @@ static int compat_fd_ioctl(struct inode *inode, struct file *file,
                 return -EINVAL;
         }
         set_fs(KERNEL_DS);
-        err = blkdev_driver_ioctl(inode, file, disk, kcmd, (unsigned long)karg);
+        err = __blkdev_driver_ioctl(bdev, mode, kcmd, (unsigned long)karg);
         set_fs(old_fs);
         if (err)
                 goto out;
@@ -579,8 +579,8 @@ static int compat_blk_trace_setup(struct block_device *bdev, char __user *arg)
         return 0;
 }
 
-static int compat_blkdev_driver_ioctl(struct inode *inode, struct file *file,
-                        struct gendisk *disk, unsigned cmd, unsigned long arg)
+static int compat_blkdev_driver_ioctl(struct block_device *bdev, fmode_t mode,
+                        unsigned cmd, unsigned long arg)
 {
         int ret;
 
@@ -596,7 +596,7 @@ static int compat_blkdev_driver_ioctl(struct inode *inode, struct file *file,
         case HDIO_GET_ACOUSTIC:
         case HDIO_GET_ADDRESS:
         case HDIO_GET_BUSSTATE:
-                return compat_hdio_ioctl(inode, file, disk, cmd, arg);
+                return compat_hdio_ioctl(bdev, mode, cmd, arg);
         case FDSETPRM32:
         case FDDEFPRM32:
         case FDGETPRM32:
@@ -606,11 +606,11 @@ static int compat_blkdev_driver_ioctl(struct inode *inode, struct file *file,
         case FDPOLLDRVSTAT32:
         case FDGETFDCSTAT32:
         case FDWERRORGET32:
-                return compat_fd_ioctl(inode, file, disk, cmd, arg);
+                return compat_fd_ioctl(bdev, mode, cmd, arg);
         case CDROMREADAUDIO:
-                return compat_cdrom_read_audio(inode, file, disk, cmd, arg);
+                return compat_cdrom_read_audio(bdev, mode, cmd, arg);
         case CDROM_SEND_PACKET:
-                return compat_cdrom_generic_command(inode, file, disk, cmd, arg);
+                return compat_cdrom_generic_command(bdev, mode, cmd, arg);
 
         /*
          * No handler required for the ones below, we just need to
@@ -679,55 +679,49 @@ static int compat_blkdev_driver_ioctl(struct inode *inode, struct file *file,
         case DVD_WRITE_STRUCT:
         case DVD_AUTH:
                 arg = (unsigned long)compat_ptr(arg);
-        /* These intepret arg as an unsigned long, not as a pointer,
-         * so we must not do compat_ptr() conversion. */
-        case HDIO_SET_MULTCOUNT:
-        case HDIO_SET_UNMASKINTR:
-        case HDIO_SET_KEEPSETTINGS:
-        case HDIO_SET_32BIT:
-        case HDIO_SET_NOWERR:
-        case HDIO_SET_DMA:
-        case HDIO_SET_PIO_MODE:
-        case HDIO_SET_NICE:
-        case HDIO_SET_WCACHE:
-        case HDIO_SET_ACOUSTIC:
-        case HDIO_SET_BUSSTATE:
-        case HDIO_SET_ADDRESS:
-        case CDROMEJECT_SW:
-        case CDROM_SET_OPTIONS:
-        case CDROM_CLEAR_OPTIONS:
-        case CDROM_SELECT_SPEED:
-        case CDROM_SELECT_DISC:
-        case CDROM_MEDIA_CHANGED:
-        case CDROM_DRIVE_STATUS:
-        case CDROM_LOCKDOOR:
-        case CDROM_DEBUG:
                 break;
         default:
                 /* unknown ioctl number */
                 return -ENOIOCTLCMD;
         }
 
-        if (disk->fops->unlocked_ioctl)
-                return disk->fops->unlocked_ioctl(file, cmd, arg);
-
-        if (disk->fops->ioctl) {
-                lock_kernel();
-                ret = disk->fops->ioctl(inode, file, cmd, arg);
-                unlock_kernel();
-                return ret;
-        }
-
-        return -ENOTTY;
+        return __blkdev_driver_ioctl(bdev, mode, cmd, arg);
 }
 
-static int compat_blkdev_locked_ioctl(struct inode *inode, struct file *file,
-                                struct block_device *bdev,
-                                unsigned cmd, unsigned long arg)
+/* Most of the generic ioctls are handled in the normal fallback path.
+   This assumes the blkdev's low level compat_ioctl always returns
+   ENOIOCTLCMD for unknown ioctls. */
+long compat_blkdev_ioctl(struct file *file, unsigned cmd, unsigned long arg)
 {
+        int ret = -ENOIOCTLCMD;
+        struct inode *inode = file->f_mapping->host;
+        struct block_device *bdev = inode->i_bdev;
+        struct gendisk *disk = bdev->bd_disk;
+        fmode_t mode = file->f_mode;
         struct backing_dev_info *bdi;
+        loff_t size;
+
+        if (file->f_flags & O_NDELAY)
+                mode |= FMODE_NDELAY_NOW;
 
         switch (cmd) {
+        case HDIO_GETGEO:
+                return compat_hdio_getgeo(disk, bdev, compat_ptr(arg));
+        case BLKFLSBUF:
+        case BLKROSET:
+        case BLKDISCARD:
+        /*
+         * the ones below are implemented in blkdev_locked_ioctl,
+         * but we call blkdev_ioctl, which gets the lock for us
+         */
+        case BLKRRPART:
+                return blkdev_ioctl(bdev, mode, cmd,
+                                (unsigned long)compat_ptr(arg));
+        case BLKBSZSET_32:
+                return blkdev_ioctl(bdev, mode, BLKBSZSET,
+                                (unsigned long)compat_ptr(arg));
+        case BLKPG:
+                return compat_blkpg_ioctl(bdev, mode, cmd, compat_ptr(arg));
         case BLKRAGET:
         case BLKFRAGET:
                 if (!arg)
@@ -753,65 +747,36 @@ static int compat_blkdev_locked_ioctl(struct inode *inode, struct file *file,
                 bdi = blk_get_backing_dev_info(bdev);
                 if (bdi == NULL)
                         return -ENOTTY;
+                lock_kernel();
                 bdi->ra_pages = (arg * 512) / PAGE_CACHE_SIZE;
+                unlock_kernel();
                 return 0;
         case BLKGETSIZE:
-                if ((bdev->bd_inode->i_size >> 9) > ~0UL)
+                size = bdev->bd_inode->i_size;
+                if ((size >> 9) > ~0UL)
                         return -EFBIG;
-                return compat_put_ulong(arg, bdev->bd_inode->i_size >> 9);
+                return compat_put_ulong(arg, size >> 9);
 
         case BLKGETSIZE64_32:
                 return compat_put_u64(arg, bdev->bd_inode->i_size);
 
         case BLKTRACESETUP32:
-                return compat_blk_trace_setup(bdev, compat_ptr(arg));
+                lock_kernel();
+                ret = compat_blk_trace_setup(bdev, compat_ptr(arg));
+                unlock_kernel();
+                return ret;
         case BLKTRACESTART: /* compatible */
         case BLKTRACESTOP:  /* compatible */
         case BLKTRACETEARDOWN: /* compatible */
-                return blk_trace_ioctl(bdev, cmd, compat_ptr(arg));
-        }
-        return -ENOIOCTLCMD;
-}
-
-/* Most of the generic ioctls are handled in the normal fallback path.
-   This assumes the blkdev's low level compat_ioctl always returns
-   ENOIOCTLCMD for unknown ioctls. */
-long compat_blkdev_ioctl(struct file *file, unsigned cmd, unsigned long arg)
-{
-        int ret = -ENOIOCTLCMD;
-        struct inode *inode = file->f_mapping->host;
-        struct block_device *bdev = inode->i_bdev;
-        struct gendisk *disk = bdev->bd_disk;
-
-        switch (cmd) {
-        case HDIO_GETGEO:
-                return compat_hdio_getgeo(disk, bdev, compat_ptr(arg));
-        case BLKFLSBUF:
-        case BLKROSET:
-        case BLKDISCARD:
-        /*
-         * the ones below are implemented in blkdev_locked_ioctl,
-         * but we call blkdev_ioctl, which gets the lock for us
-         */
-        case BLKRRPART:
-                return blkdev_ioctl(inode, file, cmd,
-                                (unsigned long)compat_ptr(arg));
-        case BLKBSZSET_32:
-                return blkdev_ioctl(inode, file, BLKBSZSET,
-                                (unsigned long)compat_ptr(arg));
-        case BLKPG:
-                return compat_blkpg_ioctl(inode, file, cmd, compat_ptr(arg));
-        }
-
-        lock_kernel();
-        ret = compat_blkdev_locked_ioctl(inode, file, bdev, cmd, arg);
-        /* FIXME: why do we assume -> compat_ioctl needs the BKL? */
-        if (ret == -ENOIOCTLCMD && disk->fops->compat_ioctl)
-                ret = disk->fops->compat_ioctl(file, cmd, arg);
-        unlock_kernel();
-
-        if (ret != -ENOIOCTLCMD)
+                lock_kernel();
+                ret = blk_trace_ioctl(bdev, cmd, compat_ptr(arg));
+                unlock_kernel();
                 return ret;
-
-        return compat_blkdev_driver_ioctl(inode, file, disk, cmd, arg);
+        default:
+                if (disk->fops->compat_ioctl)
+                        ret = disk->fops->compat_ioctl(bdev, mode, cmd, arg);
+                if (ret == -ENOIOCTLCMD)
+                        ret = compat_blkdev_driver_ioctl(bdev, mode, cmd, arg);
+                return ret;
+        }
 }
diff --git a/block/ioctl.c b/block/ioctl.c
index 38bee321e1fa..c832d639b6e2 100644
--- a/block/ioctl.c
+++ b/block/ioctl.c
@@ -201,97 +201,41 @@ static int put_u64(unsigned long arg, u64 val)
         return put_user(val, (u64 __user *)arg);
 }
 
-static int blkdev_locked_ioctl(struct file *file, struct block_device *bdev,
-                                unsigned cmd, unsigned long arg)
-{
-        struct backing_dev_info *bdi;
-        int ret, n;
-
-        switch (cmd) {
-        case BLKRAGET:
-        case BLKFRAGET:
-                if (!arg)
-                        return -EINVAL;
-                bdi = blk_get_backing_dev_info(bdev);
-                if (bdi == NULL)
-                        return -ENOTTY;
-                return put_long(arg, (bdi->ra_pages * PAGE_CACHE_SIZE) / 512);
-        case BLKROGET:
-                return put_int(arg, bdev_read_only(bdev) != 0);
-        case BLKBSZGET: /* get the logical block size (cf. BLKSSZGET) */
-                return put_int(arg, block_size(bdev));
-        case BLKSSZGET: /* get block device hardware sector size */
-                return put_int(arg, bdev_hardsect_size(bdev));
-        case BLKSECTGET:
-                return put_ushort(arg, bdev_get_queue(bdev)->max_sectors);
-        case BLKRASET:
-        case BLKFRASET:
-                if(!capable(CAP_SYS_ADMIN))
-                        return -EACCES;
-                bdi = blk_get_backing_dev_info(bdev);
-                if (bdi == NULL)
-                        return -ENOTTY;
-                bdi->ra_pages = (arg * 512) / PAGE_CACHE_SIZE;
-                return 0;
-        case BLKBSZSET:
-                /* set the logical block size */
-                if (!capable(CAP_SYS_ADMIN))
-                        return -EACCES;
-                if (!arg)
-                        return -EINVAL;
-                if (get_user(n, (int __user *) arg))
-                        return -EFAULT;
-                if (bd_claim(bdev, file) < 0)
-                        return -EBUSY;
-                ret = set_blocksize(bdev, n);
-                bd_release(bdev);
-                return ret;
-        case BLKPG:
-                return blkpg_ioctl(bdev, (struct blkpg_ioctl_arg __user *) arg);
-        case BLKRRPART:
-                return blkdev_reread_part(bdev);
-        case BLKGETSIZE:
-                if ((bdev->bd_inode->i_size >> 9) > ~0UL)
-                        return -EFBIG;
-                return put_ulong(arg, bdev->bd_inode->i_size >> 9);
-        case BLKGETSIZE64:
-                return put_u64(arg, bdev->bd_inode->i_size);
-        case BLKTRACESTART:
-        case BLKTRACESTOP:
-        case BLKTRACESETUP:
-        case BLKTRACETEARDOWN:
-                return blk_trace_ioctl(bdev, cmd, (char __user *) arg);
-        }
-        return -ENOIOCTLCMD;
-}
-
-int blkdev_driver_ioctl(struct inode *inode, struct file *file,
-                        struct gendisk *disk, unsigned cmd, unsigned long arg)
+int __blkdev_driver_ioctl(struct block_device *bdev, fmode_t mode,
+                        unsigned cmd, unsigned long arg)
 {
+        struct gendisk *disk = bdev->bd_disk;
         int ret;
-        if (disk->fops->unlocked_ioctl)
-                return disk->fops->unlocked_ioctl(file, cmd, arg);
 
-        if (disk->fops->ioctl) {
+        if (disk->fops->ioctl)
+                return disk->fops->ioctl(bdev, mode, cmd, arg);
+
+        if (disk->fops->locked_ioctl) {
                 lock_kernel();
-                ret = disk->fops->ioctl(inode, file, cmd, arg);
+                ret = disk->fops->locked_ioctl(bdev, mode, cmd, arg);
                 unlock_kernel();
                 return ret;
         }
 
         return -ENOTTY;
 }
-EXPORT_SYMBOL_GPL(blkdev_driver_ioctl);
+/*
+ * For the record: _GPL here is only because somebody decided to slap it
+ * on the previous export.  Sheer idiocy, since it wasn't copyrightable
+ * at all and could be open-coded without any exports by anybody who cares.
+ */
+EXPORT_SYMBOL_GPL(__blkdev_driver_ioctl);
 
 /*
  * always keep this in sync with compat_blkdev_ioctl() and
  * compat_blkdev_locked_ioctl()
  */
-int blkdev_ioctl(struct inode *inode, struct file *file, unsigned cmd,
+int blkdev_ioctl(struct block_device *bdev, fmode_t mode, unsigned cmd,
                         unsigned long arg)
 {
-        struct block_device *bdev = inode->i_bdev;
         struct gendisk *disk = bdev->bd_disk;
+        struct backing_dev_info *bdi;
+        loff_t size;
         int ret, n;
 
         switch(cmd) {
@@ -299,7 +243,7 @@ int blkdev_ioctl(struct inode *inode, struct file *file, unsigned cmd,
                 if (!capable(CAP_SYS_ADMIN))
                         return -EACCES;
 
-                ret = blkdev_driver_ioctl(inode, file, disk, cmd, arg);
+                ret = __blkdev_driver_ioctl(bdev, mode, cmd, arg);
                 /* -EINVAL to handle old uncorrected drivers */
                 if (ret != -EINVAL && ret != -ENOTTY)
                         return ret;
@@ -311,7 +255,7 @@ int blkdev_ioctl(struct inode *inode, struct file *file, unsigned cmd,
                 return 0;
 
         case BLKROSET:
-                ret = blkdev_driver_ioctl(inode, file, disk, cmd, arg);
+                ret = __blkdev_driver_ioctl(bdev, mode, cmd, arg);
                 /* -EINVAL to handle old uncorrected drivers */
                 if (ret != -EINVAL && ret != -ENOTTY)
                         return ret;
@@ -327,7 +271,7 @@ int blkdev_ioctl(struct inode *inode, struct file *file, unsigned cmd,
         case BLKDISCARD: {
                 uint64_t range[2];
 
-                if (!(file->f_mode & FMODE_WRITE))
+                if (!(mode & FMODE_WRITE))
                         return -EBADF;
 
                 if (copy_from_user(range, (void __user *)arg, sizeof(range)))
@@ -357,14 +301,75 @@ int blkdev_ioctl(struct inode *inode, struct file *file, unsigned cmd,
                         return -EFAULT;
                 return 0;
         }
-        }
-
-        lock_kernel();
-        ret = blkdev_locked_ioctl(file, bdev, cmd, arg);
-        unlock_kernel();
-        if (ret != -ENOIOCTLCMD)
+        case BLKRAGET:
+        case BLKFRAGET:
+                if (!arg)
+                        return -EINVAL;
+                bdi = blk_get_backing_dev_info(bdev);
+                if (bdi == NULL)
+                        return -ENOTTY;
+                return put_long(arg, (bdi->ra_pages * PAGE_CACHE_SIZE) / 512);
+        case BLKROGET:
+                return put_int(arg, bdev_read_only(bdev) != 0);
+        case BLKBSZGET: /* get the logical block size (cf. BLKSSZGET) */
+                return put_int(arg, block_size(bdev));
+        case BLKSSZGET: /* get block device hardware sector size */
+                return put_int(arg, bdev_hardsect_size(bdev));
+        case BLKSECTGET:
+                return put_ushort(arg, bdev_get_queue(bdev)->max_sectors);
+        case BLKRASET:
+        case BLKFRASET:
+                if(!capable(CAP_SYS_ADMIN))
+                        return -EACCES;
+                bdi = blk_get_backing_dev_info(bdev);
+                if (bdi == NULL)
+                        return -ENOTTY;
+                lock_kernel();
+                bdi->ra_pages = (arg * 512) / PAGE_CACHE_SIZE;
+                unlock_kernel();
+                return 0;
+        case BLKBSZSET:
+                /* set the logical block size */
+                if (!capable(CAP_SYS_ADMIN))
+                        return -EACCES;
+                if (!arg)
+                        return -EINVAL;
+                if (get_user(n, (int __user *) arg))
+                        return -EFAULT;
+                if (!(mode & FMODE_EXCL) && bd_claim(bdev, &bdev) < 0)
+                        return -EBUSY;
+                ret = set_blocksize(bdev, n);
+                if (!(mode & FMODE_EXCL))
+                        bd_release(bdev);
                 return ret;
-
-        return blkdev_driver_ioctl(inode, file, disk, cmd, arg);
+        case BLKPG:
+                lock_kernel();
+                ret = blkpg_ioctl(bdev, (struct blkpg_ioctl_arg __user *) arg);
+                unlock_kernel();
+                break;
+        case BLKRRPART:
+                lock_kernel();
+                ret = blkdev_reread_part(bdev);
+                unlock_kernel();
+                break;
+        case BLKGETSIZE:
+                size = bdev->bd_inode->i_size;
+                if ((size >> 9) > ~0UL)
+                        return -EFBIG;
+                return put_ulong(arg, size >> 9);
+        case BLKGETSIZE64:
+                return put_u64(arg, bdev->bd_inode->i_size);
+        case BLKTRACESTART:
+        case BLKTRACESTOP:
+        case BLKTRACESETUP:
+        case BLKTRACETEARDOWN:
+                lock_kernel();
+                ret = blk_trace_ioctl(bdev, cmd, (char __user *) arg);
+                unlock_kernel();
+                break;
+        default:
+                ret = __blkdev_driver_ioctl(bdev, mode, cmd, arg);
+        }
+        return ret;
 }
 EXPORT_SYMBOL_GPL(blkdev_ioctl);
diff --git a/block/scsi_ioctl.c b/block/scsi_ioctl.c
index c34272a348fe..5963cf91a3a0 100644
--- a/block/scsi_ioctl.c
+++ b/block/scsi_ioctl.c
@@ -190,12 +190,11 @@ void blk_set_cmd_filter_defaults(struct blk_cmd_filter *filter)
 EXPORT_SYMBOL_GPL(blk_set_cmd_filter_defaults);
 
 static int blk_fill_sghdr_rq(struct request_queue *q, struct request *rq,
-                             struct sg_io_hdr *hdr, struct file *file)
+                             struct sg_io_hdr *hdr, fmode_t mode)
 {
         if (copy_from_user(rq->cmd, hdr->cmdp, hdr->cmd_len))
                 return -EFAULT;
-        if (blk_verify_command(&q->cmd_filter, rq->cmd,
-                               file->f_mode & FMODE_WRITE))
+        if (blk_verify_command(&q->cmd_filter, rq->cmd, mode & FMODE_WRITE))
                 return -EPERM;
 
         /*
@@ -260,8 +259,8 @@ static int blk_complete_sghdr_rq(struct request *rq, struct sg_io_hdr *hdr,
         return r;
 }
 
-static int sg_io(struct file *file, struct request_queue *q,
-                struct gendisk *bd_disk, struct sg_io_hdr *hdr)
+static int sg_io(struct request_queue *q, struct gendisk *bd_disk,
+                struct sg_io_hdr *hdr, fmode_t mode)
 {
         unsigned long start_time;
         int writing = 0, ret = 0;
@@ -293,7 +292,7 @@ static int sg_io(struct file *file, struct request_queue *q,
         if (!rq)
                 return -ENOMEM;
 
-        if (blk_fill_sghdr_rq(q, rq, hdr, file)) {
+        if (blk_fill_sghdr_rq(q, rq, hdr, mode)) {
                 blk_put_request(rq);
                 return -EFAULT;
         }
@@ -380,11 +379,11 @@ out:
  *      bytes in one int) where the lowest byte is the SCSI status.
  */
 #define OMAX_SB_LEN 16          /* For backward compatibility */
-int sg_scsi_ioctl(struct file *file, struct request_queue *q,
-                  struct gendisk *disk, struct scsi_ioctl_command __user *sic)
+int sg_scsi_ioctl(struct request_queue *q, struct gendisk *disk, fmode_t mode,
+                struct scsi_ioctl_command __user *sic)
 {
         struct request *rq;
-        int err, write_perm = 0;
+        int err;
         unsigned int in_len, out_len, bytes, opcode, cmdlen;
         char *buffer = NULL, sense[SCSI_SENSE_BUFFERSIZE];
 
@@ -426,11 +425,7 @@ int sg_scsi_ioctl(struct file *file, struct request_queue *q,
         if (in_len && copy_from_user(buffer, sic->data + cmdlen, in_len))
                 goto error;
 
-        /* scsi_ioctl passes NULL */
-        if (file && (file->f_mode & FMODE_WRITE))
-                write_perm = 1;
-
-        err = blk_verify_command(&q->cmd_filter, rq->cmd, write_perm);
+        err = blk_verify_command(&q->cmd_filter, rq->cmd, mode & FMODE_WRITE);
         if (err)
                 goto error;
 
@@ -522,8 +517,8 @@ static inline int blk_send_start_stop(struct request_queue *q,
         return __blk_send_generic(q, bd_disk, GPCMD_START_STOP_UNIT, data);
 }
 
-int scsi_cmd_ioctl(struct file *file, struct request_queue *q,
-                   struct gendisk *bd_disk, unsigned int cmd, void __user *arg)
+int scsi_cmd_ioctl(struct request_queue *q, struct gendisk *bd_disk, fmode_t mode,
+                   unsigned int cmd, void __user *arg)
 {
         int err;
 
@@ -564,7 +559,7 @@ int scsi_cmd_ioctl(struct file *file, struct request_queue *q,
                         err = -EFAULT;
                         if (copy_from_user(&hdr, arg, sizeof(hdr)))
                                 break;
-                        err = sg_io(file, q, bd_disk, &hdr);
+                        err = sg_io(q, bd_disk, &hdr, mode);
                         if (err == -EFAULT)
                                 break;
 
@@ -612,7 +607,7 @@ int scsi_cmd_ioctl(struct file *file, struct request_queue *q,
                         hdr.cmdp = ((struct cdrom_generic_command __user*) arg)->cmd;
                         hdr.cmd_len = sizeof(cgc.cmd);
 
-                        err = sg_io(file, q, bd_disk, &hdr);
+                        err = sg_io(q, bd_disk, &hdr, mode);
                         if (err == -EFAULT)
                                 break;
 
@@ -636,7 +631,7 @@ int scsi_cmd_ioctl(struct file *file, struct request_queue *q,
                         if (!arg)
                                 break;
 
-                        err = sg_scsi_ioctl(file, q, bd_disk, arg);
+                        err = sg_scsi_ioctl(q, bd_disk, mode, arg);
                         break;
                 case CDROMCLOSETRAY:
                         err = blk_send_start_stop(q, bd_disk, 0x03);
diff --git a/drivers/block/DAC960.c b/drivers/block/DAC960.c
index a002a381df92..f6a337c34ac4 100644
--- a/drivers/block/DAC960.c
+++ b/drivers/block/DAC960.c
@@ -72,9 +72,9 @@ static long disk_size(DAC960_Controller_T *p, int drive_nr)
         }
 }
 
-static int DAC960_open(struct inode *inode, struct file *file)
+static int DAC960_open(struct block_device *bdev, fmode_t mode)
 {
-        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;
 
@@ -89,7 +89,7 @@ static int DAC960_open(struct inode *inode, struct file *file)
                         return -ENXIO;
         }
 
-        check_disk_change(inode->i_bdev);
+        check_disk_change(bdev);
 
         if (!get_capacity(p->disks[drive_nr]))
                 return -ENXIO;
diff --git a/drivers/block/amiflop.c b/drivers/block/amiflop.c
index 7516baff3bb9..4b1d4ac960f1 100644
--- a/drivers/block/amiflop.c
+++ b/drivers/block/amiflop.c
@@ -1437,10 +1437,11 @@ static int fd_getgeo(struct block_device *bdev, struct hd_geometry *geo)
         return 0;
 }
 
-static int fd_ioctl(struct inode *inode, struct file *filp,
+static int fd_ioctl(struct block_device *bdev, fmode_t mode,
                     unsigned int cmd, unsigned long param)
 {
-        int drive = iminor(inode) & 3;
+        struct amiga_floppy_struct *p = bdev->bd_disk->private_data;
+        int drive = p - unit;
         static struct floppy_struct getprm;
         void __user *argp = (void __user *)param;
 
@@ -1451,7 +1452,7 @@ static int fd_ioctl(struct inode *inode, struct file *filp,
                         rel_fdc();
                         return -EBUSY;
                 }
-                fsync_bdev(inode->i_bdev);
+                fsync_bdev(bdev);
                 if (fd_motor_on(drive) == 0) {
                         rel_fdc();
                         return -ENODEV;
@@ -1464,12 +1465,12 @@ static int fd_ioctl(struct inode *inode, struct file *filp,
                 rel_fdc();
                 break;
         case FDFMTTRK:
-                if (param < unit[drive].type->tracks * unit[drive].type->heads)
+                if (param < p->type->tracks * p->type->heads)
                 {
                         get_fdc(drive);
                         if (fd_seek(drive,param) != 0){
-                                memset(unit[drive].trackbuf, FD_FILL_BYTE,
-                                       unit[drive].dtype->sects * unit[drive].type->sect_mult * 512);
+                                memset(p->trackbuf, FD_FILL_BYTE,
+                                       p->dtype->sects * p->type->sect_mult * 512);
                                 non_int_flush_track(drive);
                         }
                         floppy_off(drive);
@@ -1480,14 +1481,14 @@ static int fd_ioctl(struct inode *inode, struct file *filp,
                 break;
         case FDFMTEND:
                 floppy_off(drive);
-                invalidate_bdev(inode->i_bdev);
+                invalidate_bdev(bdev);
                 break;
         case FDGETPRM:
                 memset((void *)&getprm, 0, sizeof (getprm));
-                getprm.track=unit[drive].type->tracks;
-                getprm.head=unit[drive].type->heads;
-                getprm.sect=unit[drive].dtype->sects * unit[drive].type->sect_mult;
-                getprm.size=unit[drive].blocks;
+                getprm.track=p->type->tracks;
+                getprm.head=p->type->heads;
+                getprm.sect=p->dtype->sects * p->type->sect_mult;
+                getprm.size=p->blocks;
                 if (copy_to_user(argp, &getprm, sizeof(struct floppy_struct)))
                         return -EFAULT;
                 break;
@@ -1500,10 +1501,10 @@ static int fd_ioctl(struct inode *inode, struct file *filp,
                 break;
 #ifdef RAW_IOCTL
         case IOCTL_RAW_TRACK:
-                if (copy_to_user(argp, raw_buf, unit[drive].type->read_size))
+                if (copy_to_user(argp, raw_buf, p->type->read_size))
                         return -EFAULT;
                 else
-                        return unit[drive].type->read_size;
+                        return p->type->read_size;
 #endif
         default:
                 printk(KERN_DEBUG "fd_ioctl: unknown cmd %d for drive %d.",
@@ -1548,10 +1549,10 @@ static void fd_probe(int dev)
  * /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 = iminor(inode) & 3;
-        int system =  (iminor(inode) & 4) >> 2;
+        int drive = MINOR(bdev->bd_dev) & 3;
+        int system =  (MINOR(bdev->bd_dev) & 4) >> 2;
         int old_dev;
         unsigned long flags;
 
@@ -1560,9 +1561,9 @@ static int floppy_open(struct inode *inode, struct file *filp)
         if (fd_ref[drive] && old_dev != system)
                 return -EBUSY;
 
-        if (filp && filp->f_mode & 3) {
-                check_disk_change(inode->i_bdev);
-                if (filp->f_mode & 2 ) {
+        if (mode & (FMODE_READ|FMODE_WRITE)) {
+                check_disk_change(bdev);
+                if (mode & FMODE_WRITE) {
                         int wrprot;
 
                         get_fdc(drive);
@@ -1592,9 +1593,10 @@ static int floppy_open(struct inode *inode, struct file *filp)
         return 0;
 }
 
-static int floppy_release(struct inode * inode, struct file * filp)
+static int floppy_release(struct gendisk *disk, fmode_t mode)
 {
-        int drive = iminor(inode) & 3;
+        struct amiga_floppy_struct *p = disk->private_data;
+        int drive = p - unit;
 
         if (unit[drive].dirty == 1) {
                 del_timer (flush_track_timer + drive);
@@ -1650,7 +1652,7 @@ static struct block_device_operations floppy_fops = {
         .owner          = THIS_MODULE,
         .open           = floppy_open,
         .release        = floppy_release,
-        .ioctl          = fd_ioctl,
+        .locked_ioctl   = fd_ioctl,
         .getgeo         = fd_getgeo,
         .media_changed  = amiga_floppy_change,
 };
diff --git a/drivers/block/aoe/aoeblk.c b/drivers/block/aoe/aoeblk.c
index d876ad861237..1747dd272cd4 100644
--- a/drivers/block/aoe/aoeblk.c
+++ b/drivers/block/aoe/aoeblk.c
@@ -118,13 +118,11 @@ aoedisk_rm_sysfs(struct aoedev *d)
 }
 
 static int
-aoeblk_open(struct inode *inode, struct file *filp)
+aoeblk_open(struct block_device *bdev, fmode_t mode)
 {
-        struct aoedev *d;
+        struct aoedev *d = bdev->bd_disk->private_data;
         ulong flags;
 
-        d = inode->i_bdev->bd_disk->private_data;
-
         spin_lock_irqsave(&d->lock, flags);
         if (d->flags & DEVFL_UP) {
                 d->nopen++;
@@ -136,13 +134,11 @@ aoeblk_open(struct inode *inode, struct file *filp)
 }
 
 static int
-aoeblk_release(struct inode *inode, struct file *filp)
+aoeblk_release(struct gendisk *disk, fmode_t mode)
 {
-        struct aoedev *d;
+        struct aoedev *d = disk->private_data;
         ulong flags;
 
-        d = inode->i_bdev->bd_disk->private_data;
-
         spin_lock_irqsave(&d->lock, flags);
 
         if (--d->nopen == 0) {
diff --git a/drivers/block/ataflop.c b/drivers/block/ataflop.c
index 432cf4018291..69e1df7dfa14 100644
--- a/drivers/block/ataflop.c
+++ b/drivers/block/ataflop.c
@@ -361,13 +361,13 @@ static void finish_fdc( void );
 static void finish_fdc_done( int dummy );
 static void setup_req_params( int drive );
 static void redo_fd_request( void);
-static int fd_ioctl( struct inode *inode, struct file *filp, unsigned int
+static int fd_ioctl(struct block_device *bdev, fmode_t mode, unsigned int
                      cmd, unsigned long param);
 static void fd_probe( int drive );
 static int fd_test_drive_present( int drive );
 static void config_types( void );
-static int floppy_open( struct inode *inode, struct file *filp );
-static int floppy_release( struct inode * inode, struct file * filp );
+static int floppy_open(struct block_device *bdev, fmode_t mode);
+static int floppy_release(struct gendisk *disk, fmode_t mode);
 
 /************************* End of Prototypes **************************/
 
@@ -1483,10 +1483,10 @@ void do_fd_request(struct request_queue * q)
         atari_enable_irq( IRQ_MFP_FDC );
 }
 
-static int fd_ioctl(struct inode *inode, struct file *filp,
+static int fd_ioctl(struct block_device *bdev, fmode_t mode,
                     unsigned int cmd, unsigned long param)
 {
-        struct gendisk *disk = inode->i_bdev->bd_disk;
+        struct gendisk *disk = bdev->bd_disk;
         struct atari_floppy_struct *floppy = disk->private_data;
         int drive = floppy - unit;
         int type = floppy->type;
@@ -1661,7 +1661,7 @@ static int fd_ioctl(struct inode *inode, struct file *filp,
                 /* invalidate the buffer track to force a reread */
                 BufferDrive = -1;
                 set_bit(drive, &fake_change);
-                check_disk_change(inode->i_bdev);
+                check_disk_change(bdev);
                 return 0;
         default:
                 return -EINVAL;
@@ -1804,37 +1804,36 @@ static void __init config_types( void )
  * 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)
 {
-        struct atari_floppy_struct *p = inode->i_bdev->bd_disk->private_data;
-        int type  = iminor(inode) >> 2;
+        struct atari_floppy_struct *p = bdev->bd_disk->private_data;
+        int type  = MINOR(bdev->bd_dev) >> 2;
 
         DPRINT(("fd_open: type=%d\n",type));
         if (p->ref && p->type != type)
                 return -EBUSY;
 
-        if (p->ref == -1 || (p->ref && filp->f_flags & O_EXCL))
+        if (p->ref == -1 || (p->ref && mode & FMODE_EXCL))
                 return -EBUSY;
 
-        if (filp->f_flags & O_EXCL)
+        if (mode & FMODE_EXCL)
                 p->ref = -1;
         else
                 p->ref++;
 
         p->type = type;
 
-        if (filp->f_flags & O_NDELAY)
+        if (mode & FMODE_NDELAY)
                 return 0;
 
-        if (filp->f_mode & 3) {
-                check_disk_change(inode->i_bdev);
-                if (filp->f_mode & 2) {
+        if (mode & (FMODE_READ|FMODE_WRITE)) {
+                check_disk_change(bdev);
+                if (mode & FMODE_WRITE) {
                         if (p->wpstat) {
                                 if (p->ref < 0)
                                         p->ref = 0;
                                 else
                                         p->ref--;
-                                floppy_release(inode, filp);
                                 return -EROFS;
                         }
                 }
@@ -1843,9 +1842,9 @@ static int floppy_open( struct inode *inode, struct file *filp )
 }
 
 
-static int floppy_release( struct inode * inode, struct file * filp )
+static int floppy_release(struct gendisk *disk, fmode_t mode)
 {
-        struct atari_floppy_struct *p = inode->i_bdev->bd_disk->private_data;
+        struct atari_floppy_struct *p = disk->private_data;
         if (p->ref < 0)
                 p->ref = 0;
         else if (!p->ref--) {
@@ -1859,7 +1858,7 @@ static struct block_device_operations floppy_fops = {
         .owner          = THIS_MODULE,
         .open           = floppy_open,
         .release        = floppy_release,
-        .ioctl          = fd_ioctl,
+        .locked_ioctl   = fd_ioctl,
         .media_changed  = check_floppy_change,
         .revalidate_disk= floppy_revalidate,
 };
diff --git a/drivers/block/brd.c b/drivers/block/brd.c
index d070d492e385..bdd4f5f45575 100644
--- a/drivers/block/brd.c
+++ b/drivers/block/brd.c
@@ -340,11 +340,10 @@ static int brd_direct_access (struct block_device *bdev, sector_t sector,
 }
 #endif
 
-static int brd_ioctl(struct inode *inode, struct file *file,
+static int brd_ioctl(struct block_device *bdev, fmode_t mode,
                         unsigned int cmd, unsigned long arg)
 {
         int error;
-        struct block_device *bdev = inode->i_bdev;
         struct brd_device *brd = bdev->bd_disk->private_data;
 
         if (cmd != BLKFLSBUF)
@@ -376,7 +375,7 @@ static int brd_ioctl(struct inode *inode, struct file *file,
 
 static struct block_device_operations brd_fops = {
         .owner =                THIS_MODULE,
-        .ioctl =                brd_ioctl,
+        .locked_ioctl =         brd_ioctl,
 #ifdef CONFIG_BLK_DEV_XIP
         .direct_access =        brd_direct_access,
 #endif
diff --git a/drivers/block/cciss.c b/drivers/block/cciss.c
index 1e1f9153000c..4023885353e0 100644
--- a/drivers/block/cciss.c
+++ b/drivers/block/cciss.c
@@ -152,9 +152,9 @@ static ctlr_info_t *hba[MAX_CTLR];
 
 static void do_cciss_request(struct request_queue *q);
 static irqreturn_t do_cciss_intr(int irq, void *dev_id);
-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,
+static int cciss_open(struct block_device *bdev, fmode_t mode);
+static int cciss_release(struct gendisk *disk, fmode_t mode);
+static int cciss_ioctl(struct block_device *bdev, fmode_t mode,
                        unsigned int cmd, unsigned long arg);
 static int cciss_getgeo(struct block_device *bdev, struct hd_geometry *geo);
 
@@ -192,14 +192,15 @@ static void cciss_procinit(int i)
 #endif                          /* CONFIG_PROC_FS */
 
 #ifdef CONFIG_COMPAT
-static long cciss_compat_ioctl(struct file *f, unsigned cmd, unsigned long arg);
+static int cciss_compat_ioctl(struct block_device *, fmode_t,
+                              unsigned, unsigned long);
 #endif
 
 static struct block_device_operations cciss_fops = {
         .owner = THIS_MODULE,
         .open = cciss_open,
         .release = cciss_release,
-        .ioctl = cciss_ioctl,
+        .locked_ioctl = cciss_ioctl,
         .getgeo = cciss_getgeo,
 #ifdef CONFIG_COMPAT
         .compat_ioctl = cciss_compat_ioctl,
@@ -547,13 +548,13 @@ static inline drive_info_struct *get_drv(struct gendisk *disk)
 /*
  * Open.  Make sure the device is really there.
  */
-static int cciss_open(struct inode *inode, struct file *filep)
+static int cciss_open(struct block_device *bdev, fmode_t mode)
 {
-        ctlr_info_t *host = get_host(inode->i_bdev->bd_disk);
-        drive_info_struct *drv = get_drv(inode->i_bdev->bd_disk);
+        ctlr_info_t *host = get_host(bdev->bd_disk);
+        drive_info_struct *drv = get_drv(bdev->bd_disk);
 
 #ifdef CCISS_DEBUG
-        printk(KERN_DEBUG "cciss_open %s\n", inode->i_bdev->bd_disk->disk_name);
+        printk(KERN_DEBUG "cciss_open %s\n", bdev->bd_disk->disk_name);
 #endif                          /* CCISS_DEBUG */
 
         if (host->busy_initializing || drv->busy_configuring)
@@ -567,9 +568,9 @@ static int cciss_open(struct inode *inode, struct file *filep)
          * for "raw controller".
          */
         if (drv->heads == 0) {
-                if (iminor(inode) != 0) {       /* not node 0? */
+                if (MINOR(bdev->bd_dev) != 0) { /* not node 0? */
                         /* if not node 0 make sure it is a partition = 0 */
-                        if (iminor(inode) & 0x0f) {
+                        if (MINOR(bdev->bd_dev) & 0x0f) {
                                 return -ENXIO;
                                 /* if it is, make sure we have a LUN ID */
                         } else if (drv->LunID == 0) {
@@ -587,14 +588,13 @@ static int cciss_open(struct inode *inode, struct file *filep)
 /*
  * Close.  Sync first.
  */
-static int cciss_release(struct inode *inode, struct file *filep)
+static int cciss_release(struct gendisk *disk, fmode_t mode)
 {
-        ctlr_info_t *host = get_host(inode->i_bdev->bd_disk);
-        drive_info_struct *drv = get_drv(inode->i_bdev->bd_disk);
+        ctlr_info_t *host = get_host(disk);
+        drive_info_struct *drv = get_drv(disk);
 
 #ifdef CCISS_DEBUG
-        printk(KERN_DEBUG "cciss_release %s\n",
-               inode->i_bdev->bd_disk->disk_name);
+        printk(KERN_DEBUG "cciss_release %s\n", disk->disk_name);
 #endif                          /* CCISS_DEBUG */
 
         drv->usage_count--;
@@ -604,21 +604,23 @@ static int cciss_release(struct inode *inode, struct file *filep)
 
 #ifdef CONFIG_COMPAT
 
-static int do_ioctl(struct file *f, unsigned cmd, unsigned long arg)
+static int do_ioctl(struct block_device *bdev, fmode_t mode,
+                    unsigned cmd, unsigned long arg)
 {
         int ret;
         lock_kernel();
-        ret = cciss_ioctl(f->f_path.dentry->d_inode, f, cmd, arg);
+        ret = cciss_ioctl(bdev, mode, cmd, arg);
         unlock_kernel();
         return ret;
 }
 
-static int cciss_ioctl32_passthru(struct file *f, unsigned cmd,
-                                  unsigned long arg);
-static int cciss_ioctl32_big_passthru(struct file *f, unsigned cmd,
-                                      unsigned long arg);
+static int cciss_ioctl32_passthru(struct block_device *bdev, fmode_t mode,
+                                  unsigned cmd, unsigned long arg);
+static int cciss_ioctl32_big_passthru(struct block_device *bdev, fmode_t mode,
+                                      unsigned cmd, unsigned long arg);
 
-static long cciss_compat_ioctl(struct file *f, unsigned cmd, unsigned long arg)
+static int cciss_compat_ioctl(struct block_device *bdev, fmode_t mode,
+                              unsigned cmd, unsigned long arg)
 {
         switch (cmd) {
         case CCISS_GETPCIINFO:
@@ -636,20 +638,20 @@ static long cciss_compat_ioctl(struct file *f, unsigned cmd, unsigned long arg)
         case CCISS_REGNEWD:
         case CCISS_RESCANDISK:
         case CCISS_GETLUNINFO:
-                return do_ioctl(f, cmd, arg);
+                return do_ioctl(bdev, mode, cmd, arg);
 
         case CCISS_PASSTHRU32:
-                return cciss_ioctl32_passthru(f, cmd, arg);
+                return cciss_ioctl32_passthru(bdev, mode, cmd, arg);
         case CCISS_BIG_PASSTHRU32:
-                return cciss_ioctl32_big_passthru(f, cmd, arg);
+                return cciss_ioctl32_big_passthru(bdev, mode, cmd, arg);
 
         default:
                 return -ENOIOCTLCMD;
         }
 }
 
-static int cciss_ioctl32_passthru(struct file *f, unsigned cmd,
-                                  unsigned long arg)
+static int cciss_ioctl32_passthru(struct block_device *bdev, fmode_t mode,
+                                  unsigned cmd, unsigned long arg)
 {
         IOCTL32_Command_struct __user *arg32 =
             (IOCTL32_Command_struct __user *) arg;
@@ -676,7 +678,7 @@ static int cciss_ioctl32_passthru(struct file *f, unsigned cmd,
         if (err)
                 return -EFAULT;
 
-        err = do_ioctl(f, CCISS_PASSTHRU, (unsigned long)p);
+        err = do_ioctl(bdev, mode, CCISS_PASSTHRU, (unsigned long)p);
         if (err)
                 return err;
         err |=
@@ -687,8 +689,8 @@ static int cciss_ioctl32_passthru(struct file *f, unsigned cmd,
         return err;
 }
 
-static int cciss_ioctl32_big_passthru(struct file *file, unsigned cmd,
-                                      unsigned long arg)
+static int cciss_ioctl32_big_passthru(struct block_device *bdev, fmode_t mode,
+                                      unsigned cmd, unsigned long arg)
 {
         BIG_IOCTL32_Command_struct __user *arg32 =
             (BIG_IOCTL32_Command_struct __user *) arg;
@@ -717,7 +719,7 @@ static int cciss_ioctl32_big_passthru(struct file *file, unsigned cmd,
         if (err)
                 return -EFAULT;
 
-        err = do_ioctl(file, CCISS_BIG_PASSTHRU, (unsigned long)p);
+        err = do_ioctl(bdev, mode, CCISS_BIG_PASSTHRU, (unsigned long)p);
         if (err)
                 return err;
         err |=
@@ -745,10 +747,9 @@ static int cciss_getgeo(struct block_device *bdev, struct hd_geometry *geo)
 /*
  * ioctl
  */
-static int cciss_ioctl(struct inode *inode, struct file *filep,
+static int cciss_ioctl(struct block_device *bdev, fmode_t mode,
                        unsigned int cmd, unsigned long arg)
 {
-        struct block_device *bdev = inode->i_bdev;
         struct gendisk *disk = bdev->bd_disk;
         ctlr_info_t *host = get_host(disk);
         drive_info_struct *drv = get_drv(disk);
@@ -1232,7 +1233,7 @@ static int cciss_ioctl(struct inode *inode, struct file *filep,
         case SG_EMULATED_HOST:
         case SG_IO:
         case SCSI_IOCTL_SEND_COMMAND:
-                return scsi_cmd_ioctl(filep, disk->queue, disk, cmd, argp);
+                return scsi_cmd_ioctl(disk->queue, disk, mode, cmd, argp);
 
         /* scsi_cmd_ioctl would normally handle these, below, but */
         /* they aren't a good fit for cciss, as CD-ROMs are */
diff --git a/drivers/block/cpqarray.c b/drivers/block/cpqarray.c
index 3d967525e9a9..47d233c6d0b3 100644
--- a/drivers/block/cpqarray.c
+++ b/drivers/block/cpqarray.c
@@ -156,9 +156,9 @@ static int sendcmd(
         unsigned int blkcnt,
         unsigned int log_unit );
 
-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_open(struct block_device *bdev, fmode_t mode);
+static int ida_release(struct gendisk *disk, fmode_t mode);
+static int ida_ioctl(struct block_device *bdev, fmode_t mode, 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);
 
@@ -197,7 +197,7 @@ static struct block_device_operations ida_fops  = {
         .owner          = THIS_MODULE,
         .open           = ida_open,
         .release        = ida_release,
-        .ioctl          = ida_ioctl,
+        .locked_ioctl   = ida_ioctl,
         .getgeo         = ida_getgeo,
         .revalidate_disk= ida_revalidate,
 };
@@ -818,12 +818,12 @@ DBGINFO(
 /*
  * Open.  Make sure the device is really there.
  */
-static int ida_open(struct inode *inode, struct file *filep)
+static int ida_open(struct block_device *bdev, fmode_t mode)
 {
-        drv_info_t *drv = get_drv(inode->i_bdev->bd_disk);
-        ctlr_info_t *host = get_host(inode->i_bdev->bd_disk);
+        drv_info_t *drv = get_drv(bdev->bd_disk);
+        ctlr_info_t *host = get_host(bdev->bd_disk);
 
-        DBGINFO(printk("ida_open %s\n", inode->i_bdev->bd_disk->disk_name));
+        DBGINFO(printk("ida_open %s\n", bdev->bd_disk->disk_name));
         /*
          * Root is allowed to open raw volume zero even if it's not configured
          * so array config can still work.  I don't think I really like this,
@@ -843,9 +843,9 @@ static int ida_open(struct inode *inode, struct file *filep)
 /*
  * Close.  Sync first.
  */
-static int ida_release(struct inode *inode, struct file *filep)
+static int ida_release(struct gendisk *disk, fmode_t mode)
 {
-        ctlr_info_t *host = get_host(inode->i_bdev->bd_disk);
+        ctlr_info_t *host = get_host(disk);
         host->usage_count--;
         return 0;
 }
@@ -1128,10 +1128,10 @@ static int ida_getgeo(struct block_device *bdev, struct hd_geometry *geo)
  *  ida_ioctl does some miscellaneous stuff like reporting drive geometry,
  *  setting readahead and submitting commands from userspace to the controller.
  */
-static int ida_ioctl(struct inode *inode, struct file *filep, unsigned int cmd, unsigned long arg)
+static int ida_ioctl(struct block_device *bdev, fmode_t mode, unsigned int cmd, unsigned long arg)
 {
-        drv_info_t *drv = get_drv(inode->i_bdev->bd_disk);
-        ctlr_info_t *host = get_host(inode->i_bdev->bd_disk);
+        drv_info_t *drv = get_drv(bdev->bd_disk);
+        ctlr_info_t *host = get_host(bdev->bd_disk);
         int error;
         ida_ioctl_t __user *io = (ida_ioctl_t __user *)arg;
         ida_ioctl_t *my_io;
@@ -1165,7 +1165,7 @@ out_passthru:
                 put_user(host->ctlr_sig, (int __user *)arg);
                 return 0;
         case IDAREVALIDATEVOLS:
-                if (iminor(inode) != 0)
+                if (MINOR(bdev->bd_dev) != 0)
                         return -ENXIO;
                 return revalidate_allvol(host);
         case IDADRIVERVERSION:
diff --git a/drivers/block/floppy.c b/drivers/block/floppy.c
index 2cea27aba9a0..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)->private_data)
+#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)
@@ -3682,18 +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;
 
-        filp->private_data = (void *)0;
         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)) {
@@ -3701,15 +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_flags & O_EXCL)))
+        if (UDRS->fd_ref == -1 || (UDRS->fd_ref && (mode & FMODE_EXCL)))
                 goto out2;
 
-        if (filp->f_flags & O_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;
 
@@ -3744,31 +3743,26 @@ 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;
         }
 
-        /* Allow ioctls if we have write-permissions even if read-only open.
-         * Needed so that programs such as fdrawcmd still can work on write
-         * protected disks */
-        if ((filp->f_mode & FMODE_WRITE) || !file_permission(filp, MAY_WRITE))
-                filp->private_data = (void *)8;
-
         if (UFDCS->rawcmd == 1)
                 UFDCS->rawcmd = 2;
 
-        if (!(filp->f_flags & O_NDELAY)) {
-                if (filp->f_mode & 3) {
+        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 & 2) && !(UTESTF(FD_DISK_WRITABLE)))
+                if ((mode & FMODE_WRITE) && !(UTESTF(FD_DISK_WRITABLE)))
                         goto out;
         }
         mutex_unlock(&open_lock);
@@ -3911,7 +3905,7 @@ static struct block_device_operations floppy_fops = {
         .owner                  = THIS_MODULE,
         .open                   = floppy_open,
         .release                = floppy_release,
-        .ioctl                  = fd_ioctl,
+        .locked_ioctl           = fd_ioctl,
         .getgeo                 = fd_getgeo,
         .media_changed          = check_floppy_change,
         .revalidate_disk        = floppy_revalidate,
diff --git a/drivers/block/loop.c b/drivers/block/loop.c
index d3a25b027ff9..3f09cd8bcc38 100644
--- a/drivers/block/loop.c
+++ b/drivers/block/loop.c
@@ -210,7 +210,7 @@ lo_do_transfer(struct loop_device *lo, int cmd,
  * space operations write_begin and write_end.
  */
 static int do_lo_send_aops(struct loop_device *lo, struct bio_vec *bvec,
-                int bsize, loff_t pos, struct page *unused)
+                loff_t pos, struct page *unused)
 {
         struct file *file = lo->lo_backing_file; /* kudos to NFsckingS */
         struct address_space *mapping = file->f_mapping;
@@ -302,7 +302,7 @@ static int __do_lo_send_write(struct file *file,
  * filesystems.
  */
 static int do_lo_send_direct_write(struct loop_device *lo,
-                struct bio_vec *bvec, int bsize, loff_t pos, struct page *page)
+                struct bio_vec *bvec, loff_t pos, struct page *page)
 {
         ssize_t bw = __do_lo_send_write(lo->lo_backing_file,
                         kmap(bvec->bv_page) + bvec->bv_offset,
@@ -326,7 +326,7 @@ static int do_lo_send_direct_write(struct loop_device *lo,
  * destination pages of the backing file.
  */
 static int do_lo_send_write(struct loop_device *lo, struct bio_vec *bvec,
-                int bsize, loff_t pos, struct page *page)
+                loff_t pos, struct page *page)
 {
         int ret = lo_do_transfer(lo, WRITE, page, 0, bvec->bv_page,
                         bvec->bv_offset, bvec->bv_len, pos >> 9);
@@ -341,10 +341,9 @@ static int do_lo_send_write(struct loop_device *lo, struct bio_vec *bvec,
         return ret;
 }
 
-static int lo_send(struct loop_device *lo, struct bio *bio, int bsize,
-                loff_t pos)
+static int lo_send(struct loop_device *lo, struct bio *bio, loff_t pos)
 {
-        int (*do_lo_send)(struct loop_device *, struct bio_vec *, int, loff_t,
+        int (*do_lo_send)(struct loop_device *, struct bio_vec *, loff_t,
                         struct page *page);
         struct bio_vec *bvec;
         struct page *page = NULL;
@@ -362,7 +361,7 @@ static int lo_send(struct loop_device *lo, struct bio *bio, int bsize,
                 }
         }
         bio_for_each_segment(bvec, bio, i) {
-                ret = do_lo_send(lo, bvec, bsize, pos, page);
+                ret = do_lo_send(lo, bvec, pos, page);
                 if (ret < 0)
                         break;
                 pos += bvec->bv_len;
@@ -478,7 +477,7 @@ static int do_bio_filebacked(struct loop_device *lo, struct bio *bio)
 
         pos = ((loff_t) bio->bi_sector << 9) + lo->lo_offset;
         if (bio_rw(bio) == WRITE)
-                ret = lo_send(lo, bio, lo->lo_blocksize, pos);
+                ret = lo_send(lo, bio, pos);
         else
                 ret = lo_receive(lo, bio, lo->lo_blocksize, pos);
         return ret;
@@ -652,8 +651,8 @@ static void do_loop_switch(struct loop_device *lo, struct switch_request *p)
  * This can only work if the loop device is used read-only, and if the
  * new backing store is the same size and type as the old backing store.
  */
-static int loop_change_fd(struct loop_device *lo, struct file *lo_file,
-                       struct block_device *bdev, unsigned int arg)
+static int loop_change_fd(struct loop_device *lo, struct block_device *bdev,
+                          unsigned int arg)
 {
         struct file     *file, *old_file;
         struct inode    *inode;
@@ -712,7 +711,7 @@ static inline int is_loop_device(struct file *file)
         return i && S_ISBLK(i->i_mode) && MAJOR(i->i_rdev) == LOOP_MAJOR;
 }
 
-static int loop_set_fd(struct loop_device *lo, struct file *lo_file,
+static int loop_set_fd(struct loop_device *lo, fmode_t mode,
                        struct block_device *bdev, unsigned int arg)
 {
         struct file     *file, *f;
@@ -740,7 +739,7 @@ static int loop_set_fd(struct loop_device *lo, struct file *lo_file,
         while (is_loop_device(f)) {
                 struct loop_device *l;
 
-                if (f->f_mapping->host->i_rdev == lo_file->f_mapping->host->i_rdev)
+                if (f->f_mapping->host->i_bdev == bdev)
                         goto out_putf;
 
                 l = f->f_mapping->host->i_bdev->bd_disk->private_data;
@@ -786,7 +785,7 @@ static int loop_set_fd(struct loop_device *lo, struct file *lo_file,
                 goto out_putf;
         }
 
-        if (!(lo_file->f_mode & FMODE_WRITE))
+        if (!(mode & FMODE_WRITE))
                 lo_flags |= LO_FLAGS_READ_ONLY;
 
         set_device_ro(bdev, (lo_flags & LO_FLAGS_READ_ONLY) != 0);
@@ -918,9 +917,11 @@ static int loop_clr_fd(struct loop_device *lo, struct block_device *bdev)
         memset(lo->lo_encrypt_key, 0, LO_KEY_SIZE);
         memset(lo->lo_crypt_name, 0, LO_NAME_SIZE);
         memset(lo->lo_file_name, 0, LO_NAME_SIZE);
-        invalidate_bdev(bdev);
+        if (bdev)
+                invalidate_bdev(bdev);
         set_capacity(lo->lo_disk, 0);
-        bd_set_size(bdev, 0);
+        if (bdev)
+                bd_set_size(bdev, 0);
         mapping_set_gfp_mask(filp->f_mapping, gfp);
         lo->lo_state = Lo_unbound;
         fput(filp);
@@ -1137,22 +1138,22 @@ loop_get_status64(struct loop_device *lo, struct loop_info64 __user *arg) {
         return err;
 }
 
-static int lo_ioctl(struct inode * inode, struct file * file,
+static int lo_ioctl(struct block_device *bdev, fmode_t mode,
         unsigned int cmd, unsigned long arg)
 {
-        struct loop_device *lo = inode->i_bdev->bd_disk->private_data;
+        struct loop_device *lo = bdev->bd_disk->private_data;
         int err;
 
         mutex_lock(&lo->lo_ctl_mutex);
         switch (cmd) {
         case LOOP_SET_FD:
-                err = loop_set_fd(lo, file, inode->i_bdev, arg);
+                err = loop_set_fd(lo, mode, bdev, arg);
                 break;
         case LOOP_CHANGE_FD:
-                err = loop_change_fd(lo, file, inode->i_bdev, arg);
+                err = loop_change_fd(lo, bdev, arg);
                 break;
         case LOOP_CLR_FD:
-                err = loop_clr_fd(lo, inode->i_bdev);
+                err = loop_clr_fd(lo, bdev);
                 break;
         case LOOP_SET_STATUS:
                 err = loop_set_status_old(lo, (struct loop_info __user *) arg);
@@ -1292,10 +1293,10 @@ loop_get_status_compat(struct loop_device *lo,
         return err;
 }
 
-static long lo_compat_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
+static int lo_compat_ioctl(struct block_device *bdev, fmode_t mode,
+                           unsigned int cmd, unsigned long arg)
 {
-        struct inode *inode = file->f_path.dentry->d_inode;
-        struct loop_device *lo = inode->i_bdev->bd_disk->private_data;
+        struct loop_device *lo = bdev->bd_disk->private_data;
         int err;
 
         switch(cmd) {
@@ -1317,7 +1318,7 @@ static long lo_compat_ioctl(struct file *file, unsigned int cmd, unsigned long a
                 arg = (unsigned long) compat_ptr(arg);
         case LOOP_SET_FD:
         case LOOP_CHANGE_FD:
-                err = lo_ioctl(inode, file, cmd, arg);
+                err = lo_ioctl(bdev, mode, cmd, arg);
                 break;
         default:
                 err = -ENOIOCTLCMD;
@@ -1327,9 +1328,9 @@ static long lo_compat_ioctl(struct file *file, unsigned int cmd, unsigned long a
 }
 #endif
 
-static int lo_open(struct inode *inode, struct file *file)
+static int lo_open(struct block_device *bdev, fmode_t mode)
 {
-        struct loop_device *lo = inode->i_bdev->bd_disk->private_data;
+        struct loop_device *lo = bdev->bd_disk->private_data;
 
         mutex_lock(&lo->lo_ctl_mutex);
         lo->lo_refcnt++;
@@ -1338,15 +1339,15 @@ static int lo_open(struct inode *inode, struct file *file)
         return 0;
 }
 
-static int lo_release(struct inode *inode, struct file *file)
+static int lo_release(struct gendisk *disk, fmode_t mode)
 {
-        struct loop_device *lo = inode->i_bdev->bd_disk->private_data;
+        struct loop_device *lo = disk->private_data;
 
         mutex_lock(&lo->lo_ctl_mutex);
         --lo->lo_refcnt;
 
         if ((lo->lo_flags & LO_FLAGS_AUTOCLEAR) && !lo->lo_refcnt)
-                loop_clr_fd(lo, inode->i_bdev);
+                loop_clr_fd(lo, NULL);
 
         mutex_unlock(&lo->lo_ctl_mutex);
 
diff --git a/drivers/block/nbd.c b/drivers/block/nbd.c
index 9034ca585afd..d3a91cacee8c 100644
--- a/drivers/block/nbd.c
+++ b/drivers/block/nbd.c
@@ -557,10 +557,11 @@ static void do_nbd_request(struct request_queue * q)
         }
 }
 
-static int nbd_ioctl(struct inode *inode, struct file *file,
+static int nbd_ioctl(struct block_device *bdev, fmode_t mode,
                      unsigned int cmd, unsigned long arg)
 {
-        struct nbd_device *lo = inode->i_bdev->bd_disk->private_data;
+        struct nbd_device *lo = bdev->bd_disk->private_data;
+        struct file *file;
         int error;
         struct request sreq ;
         struct task_struct *thread;
@@ -612,8 +613,7 @@ static int nbd_ioctl(struct inode *inode, struct file *file,
                 error = -EINVAL;
                 file = fget(arg);
                 if (file) {
-                        struct block_device *bdev = inode->i_bdev;
-                        inode = file->f_path.dentry->d_inode;
+                        struct inode *inode = file->f_path.dentry->d_inode;
                         if (S_ISSOCK(inode->i_mode)) {
                                 lo->file = file;
                                 lo->sock = SOCKET_I(inode);
@@ -628,14 +628,14 @@ static int nbd_ioctl(struct inode *inode, struct file *file,
         case NBD_SET_BLKSIZE:
                 lo->blksize = arg;
                 lo->bytesize &= ~(lo->blksize-1);
-                inode->i_bdev->bd_inode->i_size = lo->bytesize;
-                set_blocksize(inode->i_bdev, lo->blksize);
+                bdev->bd_inode->i_size = lo->bytesize;
+                set_blocksize(bdev, lo->blksize);
                 set_capacity(lo->disk, lo->bytesize >> 9);
                 return 0;
         case NBD_SET_SIZE:
                 lo->bytesize = arg & ~(lo->blksize-1);
-                inode->i_bdev->bd_inode->i_size = lo->bytesize;
-                set_blocksize(inode->i_bdev, lo->blksize);
+                bdev->bd_inode->i_size = lo->bytesize;
+                set_blocksize(bdev, lo->blksize);
                 set_capacity(lo->disk, lo->bytesize >> 9);
                 return 0;
         case NBD_SET_TIMEOUT:
@@ -643,8 +643,8 @@ static int nbd_ioctl(struct inode *inode, struct file *file,
                 return 0;
         case NBD_SET_SIZE_BLOCKS:
                 lo->bytesize = ((u64) arg) * lo->blksize;
-                inode->i_bdev->bd_inode->i_size = lo->bytesize;
-                set_blocksize(inode->i_bdev, lo->blksize);
+                bdev->bd_inode->i_size = lo->bytesize;
+                set_blocksize(bdev, lo->blksize);
                 set_capacity(lo->disk, lo->bytesize >> 9);
                 return 0;
         case NBD_DO_IT:
@@ -666,10 +666,10 @@ static int nbd_ioctl(struct inode *inode, struct file *file,
                 if (file)
                         fput(file);
                 lo->bytesize = 0;
-                inode->i_bdev->bd_inode->i_size = 0;
+                bdev->bd_inode->i_size = 0;
                 set_capacity(lo->disk, 0);
                 if (max_part > 0)
-                        ioctl_by_bdev(inode->i_bdev, BLKRRPART, 0);
+                        ioctl_by_bdev(bdev, BLKRRPART, 0);
                 return lo->harderror;
         case NBD_CLEAR_QUE:
                 /*
@@ -680,7 +680,7 @@ static int nbd_ioctl(struct inode *inode, struct file *file,
                 return 0;
         case NBD_PRINT_DEBUG:
                 printk(KERN_INFO "%s: next = %p, prev = %p, head = %p\n",
-                        inode->i_bdev->bd_disk->disk_name,
+                        bdev->bd_disk->disk_name,
                         lo->queue_head.next, lo->queue_head.prev,
                         &lo->queue_head);
                 return 0;
@@ -691,7 +691,7 @@ static int nbd_ioctl(struct inode *inode, struct file *file,
 static struct block_device_operations nbd_fops =
 {
         .owner =        THIS_MODULE,
-        .ioctl =        nbd_ioctl,
+        .locked_ioctl = nbd_ioctl,
 };
 
 /*
diff --git a/drivers/block/paride/pcd.c b/drivers/block/paride/pcd.c
index b8a994a2b013..e91d4b4b014f 100644
--- a/drivers/block/paride/pcd.c
+++ b/drivers/block/paride/pcd.c
@@ -223,23 +223,24 @@ static int pcd_warned;		/* Have we logged a phase warning ? */
 
 /* kernel glue structures */
 
-static int pcd_block_open(struct inode *inode, struct file *file)
+static int pcd_block_open(struct block_device *bdev, fmode_t mode)
 {
-        struct pcd_unit *cd = inode->i_bdev->bd_disk->private_data;
-        return cdrom_open(&cd->info, inode, file);
+        struct pcd_unit *cd = bdev->bd_disk->private_data;
+        return cdrom_open(&cd->info, bdev, mode);
 }
 
-static int pcd_block_release(struct inode *inode, struct file *file)
+static int pcd_block_release(struct gendisk *disk, fmode_t mode)
 {
-        struct pcd_unit *cd = inode->i_bdev->bd_disk->private_data;
-        return cdrom_release(&cd->info, file);
+        struct pcd_unit *cd = disk->private_data;
+        cdrom_release(&cd->info, mode);
+        return 0;
 }
 
-static int pcd_block_ioctl(struct inode *inode, struct file *file,
+static int pcd_block_ioctl(struct block_device *bdev, fmode_t mode,
                                 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);
+        struct pcd_unit *cd = bdev->bd_disk->private_data;
+        return cdrom_ioctl(&cd->info, bdev, mode, cmd, arg);
 }
 
 static int pcd_block_media_changed(struct gendisk *disk)
@@ -252,7 +253,7 @@ static struct block_device_operations pcd_bdops = {
         .owner          = THIS_MODULE,
         .open           = pcd_block_open,
         .release        = pcd_block_release,
-        .ioctl          = pcd_block_ioctl,
+        .locked_ioctl   = pcd_block_ioctl,
         .media_changed  = pcd_block_media_changed,
 };
 
diff --git a/drivers/block/paride/pd.c b/drivers/block/paride/pd.c
index 5fdfa7c888ce..9299455b0af6 100644
--- a/drivers/block/paride/pd.c
+++ b/drivers/block/paride/pd.c
@@ -728,9 +728,9 @@ static int pd_special_command(struct pd_unit *disk,
 
 /* kernel glue structures */
 
-static int pd_open(struct inode *inode, struct file *file)
+static int pd_open(struct block_device *bdev, fmode_t mode)
 {
-        struct pd_unit *disk = inode->i_bdev->bd_disk->private_data;
+        struct pd_unit *disk = bdev->bd_disk->private_data;
 
         disk->access++;
 
@@ -758,10 +758,10 @@ static int pd_getgeo(struct block_device *bdev, struct hd_geometry *geo)
         return 0;
 }
 
-static int pd_ioctl(struct inode *inode, struct file *file,
+static int pd_ioctl(struct block_device *bdev, fmode_t mode,
          unsigned int cmd, unsigned long arg)
 {
-        struct pd_unit *disk = inode->i_bdev->bd_disk->private_data;
+        struct pd_unit *disk = bdev->bd_disk->private_data;
 
         switch (cmd) {
         case CDROMEJECT:
@@ -773,9 +773,9 @@ static int pd_ioctl(struct inode *inode, struct file *file,
         }
 }
 
-static int pd_release(struct inode *inode, struct file *file)
+static int pd_release(struct gendisk *p, fmode_t mode)
 {
-        struct pd_unit *disk = inode->i_bdev->bd_disk->private_data;
+        struct pd_unit *disk = p->private_data;
 
         if (!--disk->access && disk->removable)
                 pd_special_command(disk, pd_door_unlock);
@@ -809,7 +809,7 @@ static struct block_device_operations pd_fops = {
         .owner          = THIS_MODULE,
         .open           = pd_open,
         .release        = pd_release,
-        .ioctl          = pd_ioctl,
+        .locked_ioctl   = pd_ioctl,
         .getgeo         = pd_getgeo,
         .media_changed  = pd_check_media,
         .revalidate_disk= pd_revalidate
diff --git a/drivers/block/paride/pf.c b/drivers/block/paride/pf.c
index e7fe6ca97dd8..bef3b997ba3e 100644
--- a/drivers/block/paride/pf.c
+++ b/drivers/block/paride/pf.c
@@ -201,13 +201,13 @@ module_param_array(drive3, int, NULL, 0);
 #define ATAPI_READ_10           0x28
 #define ATAPI_WRITE_10          0x2a
 
-static int pf_open(struct inode *inode, struct file *file);
+static int pf_open(struct block_device *bdev, fmode_t mode);
 static void do_pf_request(struct request_queue * q);
-static int pf_ioctl(struct inode *inode, struct file *file,
+static int pf_ioctl(struct block_device *bdev, fmode_t mode,
                     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);
+static int pf_release(struct gendisk *disk, fmode_t mode);
 
 static int pf_detect(void);
 static void do_pf_read(void);
@@ -266,7 +266,7 @@ static struct block_device_operations pf_fops = {
         .owner          = THIS_MODULE,
         .open           = pf_open,
         .release        = pf_release,
-        .ioctl          = pf_ioctl,
+        .locked_ioctl   = pf_ioctl,
         .getgeo         = pf_getgeo,
         .media_changed  = pf_check_media,
 };
@@ -296,16 +296,16 @@ static void __init pf_init_units(void)
         }
 }
 
-static int pf_open(struct inode *inode, struct file *file)
+static int pf_open(struct block_device *bdev, fmode_t mode)
 {
-        struct pf_unit *pf = inode->i_bdev->bd_disk->private_data;
+        struct pf_unit *pf = bdev->bd_disk->private_data;
 
         pf_identify(pf);
 
         if (pf->media_status == PF_NM)
                 return -ENODEV;
 
-        if ((pf->media_status == PF_RO) && (file->f_mode & 2))
+        if ((pf->media_status == PF_RO) && (mode & FMODE_WRITE))
                 return -EROFS;
 
         pf->access++;
@@ -333,9 +333,9 @@ static int pf_getgeo(struct block_device *bdev, struct hd_geometry *geo)
         return 0;
 }
 
-static int pf_ioctl(struct inode *inode, struct file *file, unsigned int cmd, unsigned long arg)
+static int pf_ioctl(struct block_device *bdev, fmode_t mode, unsigned int cmd, unsigned long arg)
 {
-        struct pf_unit *pf = inode->i_bdev->bd_disk->private_data;
+        struct pf_unit *pf = bdev->bd_disk->private_data;
 
         if (cmd != CDROMEJECT)
                 return -EINVAL;
@@ -346,9 +346,9 @@ static int pf_ioctl(struct inode *inode, struct file *file, unsigned int cmd, un
         return 0;
 }
 
-static int pf_release(struct inode *inode, struct file *file)
+static int pf_release(struct gendisk *disk, fmode_t mode)
 {
-        struct pf_unit *pf = inode->i_bdev->bd_disk->private_data;
+        struct pf_unit *pf = disk->private_data;
 
         if (pf->access <= 0)
                 return -EINVAL;
diff --git a/drivers/block/paride/pt.c b/drivers/block/paride/pt.c
index 5ae229656eaa..1e4006e18f03 100644
--- a/drivers/block/paride/pt.c
+++ b/drivers/block/paride/pt.c
@@ -667,7 +667,7 @@ static int pt_open(struct inode *inode, struct file *file)
                 goto out;
 
         err = -EROFS;
-        if ((!(tape->flags & PT_WRITE_OK)) && (file->f_mode & 2))
+        if ((!(tape->flags & PT_WRITE_OK)) && (file->f_mode & FMODE_WRITE))
                 goto out;
 
         if (!(iminor(inode) & 128))
diff --git a/drivers/block/pktcdvd.c b/drivers/block/pktcdvd.c
index 195ca7c720f5..f20bf359b84f 100644
--- a/drivers/block/pktcdvd.c
+++ b/drivers/block/pktcdvd.c
@@ -2320,7 +2320,7 @@ static int pkt_open_write(struct pktcdvd_device *pd)
 /*
  * called at open time.
  */
-static int pkt_open_dev(struct pktcdvd_device *pd, int write)
+static int pkt_open_dev(struct pktcdvd_device *pd, fmode_t write)
 {
         int ret;
         long lba;
@@ -2332,7 +2332,7 @@ static int pkt_open_dev(struct pktcdvd_device *pd, int write)
          * so bdget() can't fail.
          */
         bdget(pd->bdev->bd_dev);
-        if ((ret = blkdev_get(pd->bdev, FMODE_READ, O_RDONLY)))
+        if ((ret = blkdev_get(pd->bdev, FMODE_READ)))
                 goto out;
 
         if ((ret = bd_claim(pd->bdev, pd)))
@@ -2381,7 +2381,7 @@ static int pkt_open_dev(struct pktcdvd_device *pd, int write)
 out_unclaim:
         bd_release(pd->bdev);
 out_putdev:
-        blkdev_put(pd->bdev);
+        blkdev_put(pd->bdev, FMODE_READ);
 out:
         return ret;
 }
@@ -2399,7 +2399,7 @@ static void pkt_release_dev(struct pktcdvd_device *pd, int flush)
 
         pkt_set_speed(pd, MAX_SPEED, MAX_SPEED);
         bd_release(pd->bdev);
-        blkdev_put(pd->bdev);
+        blkdev_put(pd->bdev, FMODE_READ);
 
         pkt_shrink_pktlist(pd);
 }
@@ -2411,7 +2411,7 @@ static struct pktcdvd_device *pkt_find_dev_from_minor(int dev_minor)
         return pkt_devs[dev_minor];
 }
 
-static int pkt_open(struct inode *inode, struct file *file)
+static int pkt_open(struct block_device *bdev, fmode_t mode)
 {
         struct pktcdvd_device *pd = NULL;
         int ret;
@@ -2419,7 +2419,7 @@ static int pkt_open(struct inode *inode, struct file *file)
         VPRINTK(DRIVER_NAME": entering open\n");
 
         mutex_lock(&ctl_mutex);
-        pd = pkt_find_dev_from_minor(iminor(inode));
+        pd = pkt_find_dev_from_minor(MINOR(bdev->bd_dev));
         if (!pd) {
                 ret = -ENODEV;
                 goto out;
@@ -2428,20 +2428,20 @@ static int pkt_open(struct inode *inode, struct file *file)
 
         pd->refcnt++;
         if (pd->refcnt > 1) {
-                if ((file->f_mode & FMODE_WRITE) &&
+                if ((mode & FMODE_WRITE) &&
                     !test_bit(PACKET_WRITABLE, &pd->flags)) {
                         ret = -EBUSY;
                         goto out_dec;
                 }
         } else {
-                ret = pkt_open_dev(pd, file->f_mode & FMODE_WRITE);
+                ret = pkt_open_dev(pd, mode & FMODE_WRITE);
                 if (ret)
                         goto out_dec;
                 /*
                  * needed here as well, since ext2 (among others) may change
                  * the blocksize at mount time
                  */
-                set_blocksize(inode->i_bdev, CD_FRAMESIZE);
+                set_blocksize(bdev, CD_FRAMESIZE);
         }
 
         mutex_unlock(&ctl_mutex);
@@ -2455,9 +2455,9 @@ out:
         return ret;
 }
 
-static int pkt_close(struct inode *inode, struct file *file)
+static int pkt_close(struct gendisk *disk, fmode_t mode)
 {
-        struct pktcdvd_device *pd = inode->i_bdev->bd_disk->private_data;
+        struct pktcdvd_device *pd = disk->private_data;
         int ret = 0;
 
         mutex_lock(&ctl_mutex);
@@ -2765,7 +2765,7 @@ static int pkt_new_dev(struct pktcdvd_device *pd, dev_t dev)
         bdev = bdget(dev);
         if (!bdev)
                 return -ENOMEM;
-        ret = blkdev_get(bdev, FMODE_READ, O_RDONLY | O_NONBLOCK);
+        ret = blkdev_get(bdev, FMODE_READ | FMODE_NDELAY);
         if (ret)
                 return ret;
 
@@ -2790,19 +2790,28 @@ static int pkt_new_dev(struct pktcdvd_device *pd, dev_t dev)
         return 0;
 
 out_mem:
-        blkdev_put(bdev);
+        blkdev_put(bdev, FMODE_READ|FMODE_WRITE);
         /* This is safe: open() is still holding a reference. */
         module_put(THIS_MODULE);
         return ret;
 }
 
-static int pkt_ioctl(struct inode *inode, struct file *file, unsigned int cmd, unsigned long arg)
+static int pkt_ioctl(struct block_device *bdev, fmode_t mode, unsigned int cmd, unsigned long arg)
 {
-        struct pktcdvd_device *pd = inode->i_bdev->bd_disk->private_data;
+        struct pktcdvd_device *pd = bdev->bd_disk->private_data;
 
-        VPRINTK("pkt_ioctl: cmd %x, dev %d:%d\n", cmd, imajor(inode), iminor(inode));
+        VPRINTK("pkt_ioctl: cmd %x, dev %d:%d\n", cmd,
+                MAJOR(bdev->bd_dev), MINOR(bdev->bd_dev));
 
         switch (cmd) {
+        case CDROMEJECT:
+                /*
+                 * The door gets locked when the device is opened, so we
+                 * have to unlock it or else the eject command fails.
+                 */
+                if (pd->refcnt == 1)
+                        pkt_lock_door(pd, 0);
+                /* fallthru */
         /*
          * forward selected CDROM ioctls to CD-ROM, for UDF
          */
@@ -2811,16 +2820,7 @@ static int pkt_ioctl(struct inode *inode, struct file *file, unsigned int cmd, u
         case CDROM_LAST_WRITTEN:
         case CDROM_SEND_PACKET:
         case SCSI_IOCTL_SEND_COMMAND:
-                return blkdev_ioctl(pd->bdev->bd_inode, file, cmd, arg);
-
-        case CDROMEJECT:
-                /*
-                 * The door gets locked when the device is opened, so we
-                 * have to unlock it or else the eject command fails.
-                 */
-                if (pd->refcnt == 1)
-                        pkt_lock_door(pd, 0);
-                return blkdev_ioctl(pd->bdev->bd_inode, file, cmd, arg);
+                return __blkdev_driver_ioctl(pd->bdev, mode, cmd, arg);
 
         default:
                 VPRINTK(DRIVER_NAME": Unknown ioctl for %s (%x)\n", pd->name, cmd);
@@ -2849,7 +2849,7 @@ static struct block_device_operations pktcdvd_ops = {
         .owner =                THIS_MODULE,
         .open =                 pkt_open,
         .release =              pkt_close,
-        .ioctl =                pkt_ioctl,
+        .locked_ioctl =         pkt_ioctl,
         .media_changed =        pkt_media_changed,
 };
 
@@ -2975,7 +2975,7 @@ static int pkt_remove_dev(dev_t pkt_dev)
         pkt_debugfs_dev_remove(pd);
         pkt_sysfs_dev_remove(pd);
 
-        blkdev_put(pd->bdev);
+        blkdev_put(pd->bdev, FMODE_READ|FMODE_WRITE);
 
         remove_proc_entry(pd->name, pkt_proc);
         DPRINTK(DRIVER_NAME": writer %s unmapped\n", pd->name);
diff --git a/drivers/block/swim3.c b/drivers/block/swim3.c
index 730ccea78e45..612965307ba0 100644
--- a/drivers/block/swim3.c
+++ b/drivers/block/swim3.c
@@ -244,10 +244,10 @@ static int grab_drive(struct floppy_state *fs, enum swim_state state,
                       int interruptible);
 static void release_drive(struct floppy_state *fs);
 static int fd_eject(struct floppy_state *fs);
-static int floppy_ioctl(struct inode *inode, struct file *filp,
+static int floppy_ioctl(struct block_device *bdev, fmode_t mode,
                         unsigned int cmd, unsigned long param);
-static int floppy_open(struct inode *inode, struct file *filp);
-static int floppy_release(struct inode *inode, struct file *filp);
+static int floppy_open(struct block_device *bdev, fmode_t mode);
+static int floppy_release(struct gendisk *disk, fmode_t mode);
 static int floppy_check_change(struct gendisk *disk);
 static int floppy_revalidate(struct gendisk *disk);
 
@@ -839,10 +839,10 @@ static int fd_eject(struct floppy_state *fs)
 static struct floppy_struct floppy_type =
         { 2880,18,2,80,0,0x1B,0x00,0xCF,0x6C,NULL };    /*  7 1.44MB 3.5"   */
 
-static int floppy_ioctl(struct inode *inode, struct file *filp,
+static int floppy_ioctl(struct block_device *bdev, fmode_t mode,
                         unsigned int cmd, unsigned long param)
 {
-        struct floppy_state *fs = inode->i_bdev->bd_disk->private_data;
+        struct floppy_state *fs = bdev->bd_disk->private_data;
         int err;
                 
         if ((cmd & 0x80) && !capable(CAP_SYS_ADMIN))
@@ -868,9 +868,9 @@ static int floppy_ioctl(struct inode *inode, struct file *filp,
         return -ENOTTY;
 }
 
-static int floppy_open(struct inode *inode, struct file *filp)
+static int floppy_open(struct block_device *bdev, fmode_t mode)
 {
-        struct floppy_state *fs = inode->i_bdev->bd_disk->private_data;
+        struct floppy_state *fs = bdev->bd_disk->private_data;
         struct swim3 __iomem *sw = fs->swim3;
         int n, err = 0;
 
@@ -904,17 +904,17 @@ static int floppy_open(struct inode *inode, struct file *filp)
                 swim3_action(fs, SETMFM);
                 swim3_select(fs, RELAX);
 
-        } else if (fs->ref_count == -1 || filp->f_flags & O_EXCL)
+        } else if (fs->ref_count == -1 || mode & FMODE_EXCL)
                 return -EBUSY;
 
-        if (err == 0 && (filp->f_flags & O_NDELAY) == 0
-            && (filp->f_mode & 3)) {
-                check_disk_change(inode->i_bdev);
+        if (err == 0 && (mode & FMODE_NDELAY) == 0
+            && (mode & (FMODE_READ|FMODE_WRITE))) {
+                check_disk_change(bdev);
                 if (fs->ejected)
                         err = -ENXIO;
         }
 
-        if (err == 0 && (filp->f_mode & 2)) {
+        if (err == 0 && (mode & FMODE_WRITE)) {
                 if (fs->write_prot < 0)
                         fs->write_prot = swim3_readbit(fs, WRITE_PROT);
                 if (fs->write_prot)
@@ -930,7 +930,7 @@ static int floppy_open(struct inode *inode, struct file *filp)
                 return err;
         }
 
-        if (filp->f_flags & O_EXCL)
+        if (mode & FMODE_EXCL)
                 fs->ref_count = -1;
         else
                 ++fs->ref_count;
@@ -938,9 +938,9 @@ static int floppy_open(struct inode *inode, struct file *filp)
         return 0;
 }
 
-static int floppy_release(struct inode *inode, struct file *filp)
+static int floppy_release(struct gendisk *disk, fmode_t mode)
 {
-        struct floppy_state *fs = inode->i_bdev->bd_disk->private_data;
+        struct floppy_state *fs = disk->private_data;
         struct swim3 __iomem *sw = fs->swim3;
         if (fs->ref_count > 0 && --fs->ref_count == 0) {
                 swim3_action(fs, MOTOR_OFF);
@@ -1000,7 +1000,7 @@ static int floppy_revalidate(struct gendisk *disk)
 static struct block_device_operations floppy_fops = {
         .open           = floppy_open,
         .release        = floppy_release,
-        .ioctl          = floppy_ioctl,
+        .locked_ioctl   = floppy_ioctl,
         .media_changed  = floppy_check_change,
         .revalidate_disk= floppy_revalidate,
 };
diff --git a/drivers/block/ub.c b/drivers/block/ub.c
index f60e41833f69..fccac18d3111 100644
--- a/drivers/block/ub.c
+++ b/drivers/block/ub.c
@@ -1667,10 +1667,9 @@ static void ub_revalidate(struct ub_dev *sc, struct ub_lun *lun)
  * This is mostly needed to keep refcounting, but also to support
  * media checks on removable media drives.
  */
-static int ub_bd_open(struct inode *inode, struct file *filp)
+static int ub_bd_open(struct block_device *bdev, fmode_t mode)
 {
-        struct gendisk *disk = inode->i_bdev->bd_disk;
-        struct ub_lun *lun = disk->private_data;
+        struct ub_lun *lun = bdev->bd_disk->private_data;
         struct ub_dev *sc = lun->udev;
         unsigned long flags;
         int rc;
@@ -1684,19 +1683,19 @@ static int ub_bd_open(struct inode *inode, struct file *filp)
         spin_unlock_irqrestore(&ub_lock, flags);
 
         if (lun->removable || lun->readonly)
-                check_disk_change(inode->i_bdev);
+                check_disk_change(bdev);
 
         /*
          * The sd.c considers ->media_present and ->changed not equivalent,
          * under some pretty murky conditions (a failure of READ CAPACITY).
          * We may need it one day.
          */
-        if (lun->removable && lun->changed && !(filp->f_flags & O_NDELAY)) {
+        if (lun->removable && lun->changed && !(mode & FMODE_NDELAY)) {
                 rc = -ENOMEDIUM;
                 goto err_open;
         }
 
-        if (lun->readonly && (filp->f_mode & FMODE_WRITE)) {
+        if (lun->readonly && (mode & FMODE_WRITE)) {
                 rc = -EROFS;
                 goto err_open;
         }
@@ -1710,9 +1709,8 @@ err_open:
 
 /*
  */
-static int ub_bd_release(struct inode *inode, struct file *filp)
+static int ub_bd_release(struct gendisk *disk, fmode_t mode)
 {
-        struct gendisk *disk = inode->i_bdev->bd_disk;
         struct ub_lun *lun = disk->private_data;
         struct ub_dev *sc = lun->udev;
 
@@ -1723,13 +1721,13 @@ static int ub_bd_release(struct inode *inode, struct file *filp)
 /*
  * The ioctl interface.
  */
-static int ub_bd_ioctl(struct inode *inode, struct file *filp,
+static int ub_bd_ioctl(struct block_device *bdev, fmode_t mode,
     unsigned int cmd, unsigned long arg)
 {
-        struct gendisk *disk = inode->i_bdev->bd_disk;
+        struct gendisk *disk = bdev->bd_disk;
         void __user *usermem = (void __user *) arg;
 
-        return scsi_cmd_ioctl(filp, disk->queue, disk, cmd, usermem);
+        return scsi_cmd_ioctl(disk->queue, disk, mode, cmd, usermem);
 }
 
 /*
@@ -1793,7 +1791,7 @@ static struct block_device_operations ub_bd_fops = {
         .owner          = THIS_MODULE,
         .open           = ub_bd_open,
         .release        = ub_bd_release,
-        .ioctl          = ub_bd_ioctl,
+        .locked_ioctl   = ub_bd_ioctl,
         .media_changed  = ub_bd_media_changed,
         .revalidate_disk = ub_bd_revalidate,
 };
diff --git a/drivers/block/viodasd.c b/drivers/block/viodasd.c
index 1730d29e6044..ecccf65dce2f 100644
--- a/drivers/block/viodasd.c
+++ b/drivers/block/viodasd.c
@@ -130,15 +130,15 @@ struct viodasd_device {
 /*
  * External open entry point.
  */
-static int viodasd_open(struct inode *ino, struct file *fil)
+static int viodasd_open(struct block_device *bdev, fmode_t mode)
 {
-        struct viodasd_device *d = ino->i_bdev->bd_disk->private_data;
+        struct viodasd_device *d = bdev->bd_disk->private_data;
         HvLpEvent_Rc hvrc;
         struct viodasd_waitevent we;
         u16 flags = 0;
 
         if (d->read_only) {
-                if ((fil != NULL) && (fil->f_mode & FMODE_WRITE))
+                if (mode & FMODE_WRITE)
                         return -EROFS;
                 flags = vioblockflags_ro;
         }
@@ -179,9 +179,9 @@ static int viodasd_open(struct inode *ino, struct file *fil)
 /*
  * External release entry point.
  */
-static int viodasd_release(struct inode *ino, struct file *fil)
+static int viodasd_release(struct gendisk *disk, fmode_t mode)
 {
-        struct viodasd_device *d = ino->i_bdev->bd_disk->private_data;
+        struct viodasd_device *d = disk->private_data;
         HvLpEvent_Rc hvrc;
 
         /* Send the event to OS/400.  We DON'T expect a response */
diff --git a/drivers/block/virtio_blk.c b/drivers/block/virtio_blk.c
index 6ec5fc052786..85d79a02d487 100644
--- a/drivers/block/virtio_blk.c
+++ b/drivers/block/virtio_blk.c
@@ -146,11 +146,11 @@ static void do_virtblk_request(struct request_queue *q)
                 vblk->vq->vq_ops->kick(vblk->vq);
 }
 
-static int virtblk_ioctl(struct inode *inode, struct file *filp,
+static int virtblk_ioctl(struct block_device *bdev, fmode_t mode,
                          unsigned cmd, unsigned long data)
 {
-        return scsi_cmd_ioctl(filp, inode->i_bdev->bd_disk->queue,
-                              inode->i_bdev->bd_disk, cmd,
+        return scsi_cmd_ioctl(bdev->bd_disk->queue,
+                              bdev->bd_disk, mode, cmd,
                               (void __user *)data);
 }
 
@@ -180,7 +180,7 @@ static int virtblk_getgeo(struct block_device *bd, struct hd_geometry *geo)
 }
 
 static struct block_device_operations virtblk_fops = {
-        .ioctl  = virtblk_ioctl,
+        .locked_ioctl = virtblk_ioctl,
         .owner  = THIS_MODULE,
         .getgeo = virtblk_getgeo,
 };
diff --git a/drivers/block/xd.c b/drivers/block/xd.c
index 624d30f7da3f..64b496fce98b 100644
--- a/drivers/block/xd.c
+++ b/drivers/block/xd.c
@@ -132,7 +132,7 @@ 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,
+        .locked_ioctl   = xd_ioctl,
         .getgeo = xd_getgeo,
 };
 static DECLARE_WAIT_QUEUE_HEAD(xd_wait_int);
@@ -343,7 +343,7 @@ static int xd_getgeo(struct block_device *bdev, struct hd_geometry *geo)
 }
 
 /* xd_ioctl: handle device ioctl's */
-static int xd_ioctl (struct inode *inode,struct file *file,u_int cmd,u_long arg)
+static int xd_ioctl(struct block_device *bdev, fmode_t mode, u_int cmd, u_long arg)
 {
         switch (cmd) {
                 case HDIO_SET_DMA:
diff --git a/drivers/block/xd.h b/drivers/block/xd.h
index cffd44a20383..37cacef16e93 100644
--- a/drivers/block/xd.h
+++ b/drivers/block/xd.h
@@ -105,7 +105,7 @@ static u_char xd_detect (u_char *controller, unsigned int *address);
 static u_char xd_initdrives (void (*init_drive)(u_char drive));
 
 static void do_xd_request (struct request_queue * q);
-static int xd_ioctl (struct inode *inode,struct file *file,unsigned int cmd,unsigned long arg);
+static int xd_ioctl (struct block_device *bdev,fmode_t mode,unsigned int cmd,unsigned long arg);
 static int xd_readwrite (u_char operation,XD_INFO *disk,char *buffer,u_int block,u_int count);
 static void xd_recalibrate (u_char drive);
 
diff --git a/drivers/block/xen-blkfront.c b/drivers/block/xen-blkfront.c
index 1a50ae70f716..b220c686089d 100644
--- a/drivers/block/xen-blkfront.c
+++ b/drivers/block/xen-blkfront.c
@@ -156,11 +156,10 @@ static int blkif_getgeo(struct block_device *bd, struct hd_geometry *hg)
         return 0;
 }
 
-static int blkif_ioctl(struct inode *inode, struct file *filep,
+static int blkif_ioctl(struct block_device *bdev, fmode_t mode,
                        unsigned command, unsigned long argument)
 {
-        struct blkfront_info *info =
-                inode->i_bdev->bd_disk->private_data;
+        struct blkfront_info *info = bdev->bd_disk->private_data;
         int i;
 
         dev_dbg(&info->xbdev->dev, "command: 0x%x, argument: 0x%lx\n",
@@ -1014,16 +1013,16 @@ static int blkfront_is_ready(struct xenbus_device *dev)
         return info->is_ready;
 }
 
-static int blkif_open(struct inode *inode, struct file *filep)
+static int blkif_open(struct block_device *bdev, fmode_t mode)
 {
-        struct blkfront_info *info = inode->i_bdev->bd_disk->private_data;
+        struct blkfront_info *info = bdev->bd_disk->private_data;
         info->users++;
         return 0;
 }
 
-static int blkif_release(struct inode *inode, struct file *filep)
+static int blkif_release(struct gendisk *disk, fmode_t mode)
 {
-        struct blkfront_info *info = inode->i_bdev->bd_disk->private_data;
+        struct blkfront_info *info = disk->private_data;
         info->users--;
         if (info->users == 0) {
                 /* Check whether we have been instructed to close.  We will
@@ -1044,7 +1043,7 @@ static struct block_device_operations xlvbd_block_fops =
         .open = blkif_open,
         .release = blkif_release,
         .getgeo = blkif_getgeo,
-        .ioctl = blkif_ioctl,
+        .locked_ioctl = blkif_ioctl,
 };
 
 
diff --git a/drivers/block/xsysace.c b/drivers/block/xsysace.c
index 4a7a059ebaf7..ecab9e67d47a 100644
--- a/drivers/block/xsysace.c
+++ b/drivers/block/xsysace.c
@@ -870,25 +870,24 @@ static int ace_revalidate_disk(struct gendisk *gd)
         return ace->id_result;
 }
 
-static int ace_open(struct inode *inode, struct file *filp)
+static int ace_open(struct block_device *bdev, fmode_t mode)
 {
-        struct ace_device *ace = inode->i_bdev->bd_disk->private_data;
+        struct ace_device *ace = bdev->bd_disk->private_data;
         unsigned long flags;
 
         dev_dbg(ace->dev, "ace_open() users=%i\n", ace->users + 1);
 
-        filp->private_data = ace;
         spin_lock_irqsave(&ace->lock, flags);
         ace->users++;
         spin_unlock_irqrestore(&ace->lock, flags);
 
-        check_disk_change(inode->i_bdev);
+        check_disk_change(bdev);
         return 0;
 }
 
-static int ace_release(struct inode *inode, struct file *filp)
+static int ace_release(struct gendisk *disk, fmode_t mode)
 {
-        struct ace_device *ace = inode->i_bdev->bd_disk->private_data;
+        struct ace_device *ace = disk->private_data;
         unsigned long flags;
         u16 val;
 
diff --git a/drivers/block/z2ram.c b/drivers/block/z2ram.c
index be20a67f1fa8..80754cdd3119 100644
--- a/drivers/block/z2ram.c
+++ b/drivers/block/z2ram.c
@@ -137,8 +137,7 @@ get_chipram( void )
     return;
 }
 
-static int
-z2_open( struct inode *inode, struct file *filp )
+static int z2_open(struct block_device *bdev, fmode_t mode)
 {
     int device;
     int max_z2_map = ( Z2RAM_SIZE / Z2RAM_CHUNKSIZE ) *
@@ -147,7 +146,7 @@ z2_open( struct inode *inode, struct file *filp )
         sizeof( z2ram_map[0] );
     int rc = -ENOMEM;
 
-    device = iminor(inode);
+    device = MINOR(bdev->bd_dev);
 
     if ( current_device != -1 && current_device != device )
     {
@@ -299,7 +298,7 @@ err_out:
 }
 
 static int
-z2_release( struct inode *inode, struct file *filp )
+z2_release(struct gendisk *disk, fmode_t mode)
 {
     if ( current_device == -1 )
         return 0;     
diff --git a/drivers/cdrom/cdrom.c b/drivers/cdrom/cdrom.c
index d47f2f80accd..d16b02423d61 100644
--- a/drivers/cdrom/cdrom.c
+++ b/drivers/cdrom/cdrom.c
@@ -973,7 +973,7 @@ static int cdrom_close_write(struct cdrom_device_info *cdi)
  * is in their own interest: device control becomes a lot easier
  * this way.
  */
-int cdrom_open(struct cdrom_device_info *cdi, struct inode *ip, struct file *fp)
+int cdrom_open(struct cdrom_device_info *cdi, struct block_device *bdev, fmode_t mode)
 {
         int ret;
 
@@ -982,14 +982,14 @@ int cdrom_open(struct cdrom_device_info *cdi, struct inode *ip, struct file *fp)
         /* if this was a O_NONBLOCK open and we should honor the flags,
          * do a quick open without drive/disc integrity checks. */
         cdi->use_count++;
-        if ((fp->f_flags & O_NONBLOCK) && (cdi->options & CDO_USE_FFLAGS)) {
+        if ((mode & FMODE_NDELAY) && (cdi->options & CDO_USE_FFLAGS)) {
                 ret = cdi->ops->open(cdi, 1);
         } else {
                 ret = open_for_data(cdi);
                 if (ret)
                         goto err;
                 cdrom_mmc3_profile(cdi);
-                if (fp->f_mode & FMODE_WRITE) {
+                if (mode & FMODE_WRITE) {
                         ret = -EROFS;
                         if (cdrom_open_write(cdi))
                                 goto err_release;
@@ -1007,7 +1007,7 @@ int cdrom_open(struct cdrom_device_info *cdi, struct inode *ip, struct file *fp)
                         cdi->name, cdi->use_count);
         /* Do this on open.  Don't wait for mount, because they might
             not be mounting, but opening with O_NONBLOCK */
-        check_disk_change(ip->i_bdev);
+        check_disk_change(bdev);
         return 0;
 err_release:
         if (CDROM_CAN(CDC_LOCK) && cdi->options & CDO_LOCK) {
@@ -1184,7 +1184,7 @@ static int check_for_audio_disc(struct cdrom_device_info * cdi,
         return 0;
 }
 
-int cdrom_release(struct cdrom_device_info *cdi, struct file *fp)
+void cdrom_release(struct cdrom_device_info *cdi, fmode_t mode)
 {
         struct cdrom_device_ops *cdo = cdi->ops;
         int opened_for_data;
@@ -1205,7 +1205,7 @@ int cdrom_release(struct cdrom_device_info *cdi, struct file *fp)
         }
 
         opened_for_data = !(cdi->options & CDO_USE_FFLAGS) ||
-                !(fp && fp->f_flags & O_NONBLOCK);
+                !(mode & FMODE_NDELAY);
 
         /*
          * flush cache on last write release
@@ -1219,7 +1219,6 @@ int cdrom_release(struct cdrom_device_info *cdi, struct file *fp)
                     cdi->options & CDO_AUTO_EJECT && CDROM_CAN(CDC_OPEN_TRAY))
                         cdo->tray_move(cdi, 1);
         }
-        return 0;
 }
 
 static int cdrom_read_mech_status(struct cdrom_device_info *cdi, 
@@ -2662,17 +2661,17 @@ static int cdrom_ioctl_audioctl(struct cdrom_device_info *cdi,
  * these days.
  * ATAPI / SCSI specific code now mainly resides in mmc_ioctl().
  */
-int cdrom_ioctl(struct file * file, struct cdrom_device_info *cdi,
-                struct inode *ip, unsigned int cmd, unsigned long arg)
+int cdrom_ioctl(struct cdrom_device_info *cdi, struct block_device *bdev,
+                fmode_t mode, unsigned int cmd, unsigned long arg)
 {
         void __user *argp = (void __user *)arg;
         int ret;
-        struct gendisk *disk = ip->i_bdev->bd_disk;
+        struct gendisk *disk = bdev->bd_disk;
 
         /*
          * Try the generic SCSI command ioctl's first.
          */
-        ret = scsi_cmd_ioctl(file, disk->queue, disk, cmd, argp);
+        ret = scsi_cmd_ioctl(disk->queue, disk, mode, cmd, argp);
         if (ret != -ENOTTY)
                 return ret;
 
@@ -2696,7 +2695,7 @@ int cdrom_ioctl(struct file * file, struct cdrom_device_info *cdi,
         case CDROM_SELECT_DISC:
                 return cdrom_ioctl_select_disc(cdi, arg);
         case CDROMRESET:
-                return cdrom_ioctl_reset(cdi, ip->i_bdev);
+                return cdrom_ioctl_reset(cdi, bdev);
         case CDROM_LOCKDOOR:
                 return cdrom_ioctl_lock_door(cdi, arg);
         case CDROM_DEBUG:
diff --git a/drivers/cdrom/gdrom.c b/drivers/cdrom/gdrom.c
index d6ba77a2dd7b..9aaa86b232b1 100644
--- a/drivers/cdrom/gdrom.c
+++ b/drivers/cdrom/gdrom.c
@@ -490,14 +490,14 @@ static struct cdrom_device_ops gdrom_ops = {
         .n_minors               = 1,
 };
 
-static int gdrom_bdops_open(struct inode *inode, struct file *file)
+static int gdrom_bdops_open(struct block_device *bdev, fmode_t mode)
 {
-        return cdrom_open(gd.cd_info, inode, file);
+        return cdrom_open(gd.cd_info, bdev, mode);
 }
 
-static int gdrom_bdops_release(struct inode *inode, struct file *file)
+static int gdrom_bdops_release(struct block_device *bdev, fmode_t mode)
 {
-        return cdrom_release(gd.cd_info, file);
+        return cdrom_release(gd.cd_info, mode);
 }
 
 static int gdrom_bdops_mediachanged(struct gendisk *disk)
@@ -505,10 +505,10 @@ static int gdrom_bdops_mediachanged(struct gendisk *disk)
         return cdrom_media_changed(gd.cd_info);
 }
 
-static int gdrom_bdops_ioctl(struct inode *inode, struct file *file,
+static int gdrom_bdops_ioctl(struct block_device *bdev, fmode_t mode,
         unsigned cmd, unsigned long arg)
 {
-        return cdrom_ioctl(file, gd.cd_info, inode, cmd, arg);
+        return cdrom_ioctl(gd.cd_info, bdev, mode, cmd, arg);
 }
 
 static struct block_device_operations gdrom_bdops = {
@@ -516,7 +516,7 @@ static struct block_device_operations gdrom_bdops = {
         .open                   = gdrom_bdops_open,
         .release                = gdrom_bdops_release,
         .media_changed          = gdrom_bdops_mediachanged,
-        .ioctl                  = gdrom_bdops_ioctl,
+        .locked_ioctl           = gdrom_bdops_ioctl,
 };
 
 static irqreturn_t gdrom_command_interrupt(int irq, void *dev_id)
diff --git a/drivers/cdrom/viocd.c b/drivers/cdrom/viocd.c
index 031e0e1a1a3b..13929356135c 100644
--- a/drivers/cdrom/viocd.c
+++ b/drivers/cdrom/viocd.c
@@ -151,23 +151,24 @@ static const struct file_operations proc_viocd_operations = {
         .release        = single_release,
 };
 
-static int viocd_blk_open(struct inode *inode, struct file *file)
+static int viocd_blk_open(struct block_device *bdev, fmode_t mode)
 {
-        struct disk_info *di = inode->i_bdev->bd_disk->private_data;
-        return cdrom_open(&di->viocd_info, inode, file);
+        struct disk_info *di = bdev->bd_disk->private_data;
+        return cdrom_open(&di->viocd_info, bdev, mode);
 }
 
-static int viocd_blk_release(struct inode *inode, struct file *file)
+static int viocd_blk_release(struct gendisk *disk, fmode_t mode)
 {
-        struct disk_info *di = inode->i_bdev->bd_disk->private_data;
-        return cdrom_release(&di->viocd_info, file);
+        struct disk_info *di = disk->private_data;
+        cdrom_release(&di->viocd_info, mode);
+        return 0;
 }
 
-static int viocd_blk_ioctl(struct inode *inode, struct file *file,
+static int viocd_blk_ioctl(struct block_device *bdev, fmode_t mode,
                 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);
+        struct disk_info *di = bdev->bd_disk->private_data;
+        return cdrom_ioctl(&di->viocd_info, bdev, mode, cmd, arg);
 }
 
 static int viocd_blk_media_changed(struct gendisk *disk)
@@ -180,7 +181,7 @@ struct block_device_operations viocd_fops = {
         .owner =                THIS_MODULE,
         .open =                 viocd_blk_open,
         .release =              viocd_blk_release,
-        .ioctl =                viocd_blk_ioctl,
+        .locked_ioctl =         viocd_blk_ioctl,
         .media_changed =        viocd_blk_media_changed,
 };
 
diff --git a/drivers/char/nvram.c b/drivers/char/nvram.c
index 39f6357e3b5d..8054ee839b3c 100644
--- a/drivers/char/nvram.c
+++ b/drivers/char/nvram.c
@@ -338,7 +338,7 @@ nvram_open(struct inode *inode, struct file *file)
 
         if ((nvram_open_cnt && (file->f_flags & O_EXCL)) ||
             (nvram_open_mode & NVRAM_EXCL) ||
-            ((file->f_mode & 2) && (nvram_open_mode & NVRAM_WRITE))) {
+            ((file->f_mode & FMODE_WRITE) && (nvram_open_mode & NVRAM_WRITE))) {
                 spin_unlock(&nvram_state_lock);
                 unlock_kernel();
                 return -EBUSY;
@@ -346,7 +346,7 @@ nvram_open(struct inode *inode, struct file *file)
 
         if (file->f_flags & O_EXCL)
                 nvram_open_mode |= NVRAM_EXCL;
-        if (file->f_mode & 2)
+        if (file->f_mode & FMODE_WRITE)
                 nvram_open_mode |= NVRAM_WRITE;
         nvram_open_cnt++;
 
@@ -366,7 +366,7 @@ nvram_release(struct inode *inode, struct file *file)
         /* if only one instance is open, clear the EXCL bit */
         if (nvram_open_mode & NVRAM_EXCL)
                 nvram_open_mode &= ~NVRAM_EXCL;
-        if (file->f_mode & 2)
+        if (file->f_mode & FMODE_WRITE)
                 nvram_open_mode &= ~NVRAM_WRITE;
 
         spin_unlock(&nvram_state_lock);
diff --git a/drivers/char/raw.c b/drivers/char/raw.c
index e139372d0e69..96adf28a17e4 100644
--- a/drivers/char/raw.c
+++ b/drivers/char/raw.c
@@ -65,7 +65,7 @@ static int raw_open(struct inode *inode, struct file *filp)
         if (!bdev)
                 goto out;
         igrab(bdev->bd_inode);
-        err = blkdev_get(bdev, filp->f_mode, 0);
+        err = blkdev_get(bdev, filp->f_mode);
         if (err)
                 goto out;
         err = bd_claim(bdev, raw_open);
@@ -87,7 +87,7 @@ static int raw_open(struct inode *inode, struct file *filp)
 out2:
         bd_release(bdev);
 out1:
-        blkdev_put(bdev);
+        blkdev_put(bdev, filp->f_mode);
 out:
         mutex_unlock(&raw_mutex);
         return err;
@@ -112,7 +112,7 @@ static int raw_release(struct inode *inode, struct file *filp)
         mutex_unlock(&raw_mutex);
 
         bd_release(bdev);
-        blkdev_put(bdev);
+        blkdev_put(bdev, filp->f_mode);
         return 0;
 }
 
@@ -125,7 +125,7 @@ raw_ioctl(struct inode *inode, struct file *filp,
 {
         struct block_device *bdev = filp->private_data;
 
-        return blkdev_ioctl(bdev->bd_inode, NULL, command, arg);
+        return blkdev_ioctl(bdev, 0, command, arg);
 }
 
 static void bind_device(struct raw_config_request *rq)
diff --git a/drivers/ide/ide-cd.c b/drivers/ide/ide-cd.c
index 13265a8827da..133afd09843c 100644
--- a/drivers/ide/ide-cd.c
+++ b/drivers/ide/ide-cd.c
@@ -2089,17 +2089,15 @@ static ide_driver_t ide_cdrom_driver = {
 #endif
 };
 
-static int idecd_open(struct inode *inode, struct file *file)
+static int idecd_open(struct block_device *bdev, fmode_t mode)
 {
-        struct gendisk *disk = inode->i_bdev->bd_disk;
-        struct cdrom_info *info;
+        struct cdrom_info *info = ide_cd_get(bdev->bd_disk);
         int rc = -ENOMEM;
 
-        info = ide_cd_get(disk);
         if (!info)
                 return -ENXIO;
 
-        rc = cdrom_open(&info->devinfo, inode, file);
+        rc = cdrom_open(&info->devinfo, bdev, mode);
 
         if (rc < 0)
                 ide_cd_put(info);
@@ -2107,12 +2105,11 @@ static int idecd_open(struct inode *inode, struct file *file)
         return rc;
 }
 
-static int idecd_release(struct inode *inode, struct file *file)
+static int idecd_release(struct gendisk *disk, fmode_t mode)
 {
-        struct gendisk *disk = inode->i_bdev->bd_disk;
         struct cdrom_info *info = ide_drv_g(disk, cdrom_info);
 
-        cdrom_release(&info->devinfo, file);
+        cdrom_release(&info->devinfo, mode);
 
         ide_cd_put(info);
 
@@ -2158,10 +2155,9 @@ static int idecd_get_spindown(struct cdrom_device_info *cdi, unsigned long arg)
         return 0;
 }
 
-static int idecd_ioctl(struct inode *inode, struct file *file,
+static int idecd_ioctl(struct block_device *bdev, fmode_t mode,
                         unsigned int cmd, unsigned long arg)
 {
-        struct block_device *bdev = inode->i_bdev;
         struct cdrom_info *info = ide_drv_g(bdev->bd_disk, cdrom_info);
         int err;
 
@@ -2174,9 +2170,9 @@ static int idecd_ioctl(struct inode *inode, struct file *file,
                 break;
         }
 
-        err = generic_ide_ioctl(info->drive, file, bdev, cmd, arg);
+        err = generic_ide_ioctl(info->drive, bdev, cmd, arg);
         if (err == -EINVAL)
-                err = cdrom_ioctl(file, &info->devinfo, inode, cmd, arg);
+                err = cdrom_ioctl(&info->devinfo, bdev, mode, cmd, arg);
 
         return err;
 }
@@ -2201,7 +2197,7 @@ static struct block_device_operations idecd_ops = {
         .owner                  = THIS_MODULE,
         .open                   = idecd_open,
         .release                = idecd_release,
-        .ioctl                  = idecd_ioctl,
+        .locked_ioctl           = idecd_ioctl,
         .media_changed          = idecd_media_changed,
         .revalidate_disk        = idecd_revalidate_disk
 };
diff --git a/drivers/ide/ide-disk.h b/drivers/ide/ide-disk.h
index b234b0feaf7b..d511dab7c4aa 100644
--- a/drivers/ide/ide-disk.h
+++ b/drivers/ide/ide-disk.h
@@ -13,7 +13,7 @@ ide_decl_devset(wcache);
 ide_decl_devset(acoustic);
 
 /* ide-disk_ioctl.c */
-int ide_disk_ioctl(ide_drive_t *, struct inode *, struct file *, unsigned int,
+int ide_disk_ioctl(ide_drive_t *, struct block_device *, fmode_t, unsigned int,
                    unsigned long);
 
 #ifdef CONFIG_IDE_PROC_FS
diff --git a/drivers/ide/ide-disk_ioctl.c b/drivers/ide/ide-disk_ioctl.c
index a49698bcf966..7b783dd7c0be 100644
--- a/drivers/ide/ide-disk_ioctl.c
+++ b/drivers/ide/ide-disk_ioctl.c
@@ -13,15 +13,14 @@ static const struct ide_ioctl_devset ide_disk_ioctl_settings[] = {
 { 0 }
 };
 
-int ide_disk_ioctl(ide_drive_t *drive, struct inode *inode, struct file *file,
+int ide_disk_ioctl(ide_drive_t *drive, struct block_device *bdev, fmode_t mode,
                    unsigned int cmd, unsigned long arg)
 {
-        struct block_device *bdev = inode->i_bdev;
         int err;
 
         err = ide_setting_ioctl(drive, bdev, cmd, arg, ide_disk_ioctl_settings);
         if (err != -EOPNOTSUPP)
                 return err;
 
-        return generic_ide_ioctl(drive, file, bdev, cmd, arg);
+        return generic_ide_ioctl(drive, bdev, cmd, arg);
 }
diff --git a/drivers/ide/ide-floppy.h b/drivers/ide/ide-floppy.h
index c17124dd6079..6dd2beb48434 100644
--- a/drivers/ide/ide-floppy.h
+++ b/drivers/ide/ide-floppy.h
@@ -23,8 +23,8 @@ void ide_floppy_create_mode_sense_cmd(struct ide_atapi_pc *, u8);
 void ide_floppy_create_read_capacity_cmd(struct ide_atapi_pc *);
 
 /* ide-floppy_ioctl.c */
-int ide_floppy_ioctl(ide_drive_t *, struct inode *, struct file *, unsigned int,
-                     unsigned long);
+int ide_floppy_ioctl(ide_drive_t *, struct block_device *, fmode_t,
+                     unsigned int, unsigned long);
 
 #ifdef CONFIG_IDE_PROC_FS
 /* ide-floppy_proc.c */
diff --git a/drivers/ide/ide-floppy_ioctl.c b/drivers/ide/ide-floppy_ioctl.c
index 409e4c15f9b7..2bc51ff73fee 100644
--- a/drivers/ide/ide-floppy_ioctl.c
+++ b/drivers/ide/ide-floppy_ioctl.c
@@ -241,7 +241,7 @@ static int ide_floppy_lockdoor(ide_drive_t *drive, struct ide_atapi_pc *pc,
         return 0;
 }
 
-static int ide_floppy_format_ioctl(ide_drive_t *drive, struct file *file,
+static int ide_floppy_format_ioctl(ide_drive_t *drive, fmode_t mode,
                                    unsigned int cmd, void __user *argp)
 {
         switch (cmd) {
@@ -250,7 +250,7 @@ static int ide_floppy_format_ioctl(ide_drive_t *drive, struct file *file,
         case IDEFLOPPY_IOCTL_FORMAT_GET_CAPACITY:
                 return ide_floppy_get_format_capacities(drive, argp);
         case IDEFLOPPY_IOCTL_FORMAT_START:
-                if (!(file->f_mode & 2))
+                if (!(mode & FMODE_WRITE))
                         return -EPERM;
                 return ide_floppy_format_unit(drive, (int __user *)argp);
         case IDEFLOPPY_IOCTL_FORMAT_GET_PROGRESS:
@@ -260,10 +260,9 @@ static int ide_floppy_format_ioctl(ide_drive_t *drive, struct file *file,
         }
 }
 
-int ide_floppy_ioctl(ide_drive_t *drive, struct inode *inode,
-                     struct file *file, unsigned int cmd, unsigned long arg)
+int ide_floppy_ioctl(ide_drive_t *drive, struct block_device *bdev,
+                     fmode_t mode, unsigned int cmd, unsigned long arg)
 {
-        struct block_device *bdev = inode->i_bdev;
         struct ide_atapi_pc pc;
         void __user *argp = (void __user *)arg;
         int err;
@@ -271,7 +270,7 @@ int ide_floppy_ioctl(ide_drive_t *drive, struct inode *inode,
         if (cmd == CDROMEJECT || cmd == CDROM_LOCKDOOR)
                 return ide_floppy_lockdoor(drive, &pc, arg, cmd);
 
-        err = ide_floppy_format_ioctl(drive, file, cmd, argp);
+        err = ide_floppy_format_ioctl(drive, mode, cmd, argp);
         if (err != -ENOTTY)
                 return err;
 
@@ -280,11 +279,11 @@ int ide_floppy_ioctl(ide_drive_t *drive, struct inode *inode,
          * and CDROM_SEND_PACKET (legacy) ioctls
          */
         if (cmd != CDROM_SEND_PACKET && cmd != SCSI_IOCTL_SEND_COMMAND)
-                err = scsi_cmd_ioctl(file, bdev->bd_disk->queue,
-                                        bdev->bd_disk, cmd, argp);
+                err = scsi_cmd_ioctl(bdev->bd_disk->queue, bdev->bd_disk,
+                                mode, cmd, argp);
 
         if (err == -ENOTTY)
-                err = generic_ide_ioctl(drive, file, bdev, cmd, arg);
+                err = generic_ide_ioctl(drive, bdev, cmd, arg);
 
         return err;
 }
diff --git a/drivers/ide/ide-gd.c b/drivers/ide/ide-gd.c
index d44898f46c33..7b6662854374 100644
--- a/drivers/ide/ide-gd.c
+++ b/drivers/ide/ide-gd.c
@@ -169,9 +169,9 @@ static ide_driver_t ide_gd_driver = {
 #endif
 };
 
-static int ide_gd_open(struct inode *inode, struct file *filp)
+static int ide_gd_open(struct block_device *bdev, fmode_t mode)
 {
-        struct gendisk *disk = inode->i_bdev->bd_disk;
+        struct gendisk *disk = bdev->bd_disk;
         struct ide_disk_obj *idkp;
         ide_drive_t *drive;
         int ret = 0;
@@ -197,12 +197,12 @@ static int ide_gd_open(struct inode *inode, struct file *filp)
                  * unreadable disk, so that we can get the format capacity
                  * of the drive or begin the format - Sam
                  */
-                if (ret && (filp->f_flags & O_NDELAY) == 0) {
+                if (ret && (mode & FMODE_NDELAY) == 0) {
                         ret = -EIO;
                         goto out_put_idkp;
                 }
 
-                if ((drive->dev_flags & IDE_DFLAG_WP) && (filp->f_mode & 2)) {
+                if ((drive->dev_flags & IDE_DFLAG_WP) && (mode & FMODE_WRITE)) {
                         ret = -EROFS;
                         goto out_put_idkp;
                 }
@@ -214,7 +214,7 @@ static int ide_gd_open(struct inode *inode, struct file *filp)
                  */
                 drive->disk_ops->set_doorlock(drive, disk, 1);
                 drive->dev_flags |= IDE_DFLAG_MEDIA_CHANGED;
-                check_disk_change(inode->i_bdev);
+                check_disk_change(bdev);
         } else if (drive->dev_flags & IDE_DFLAG_FORMAT_IN_PROGRESS) {
                 ret = -EBUSY;
                 goto out_put_idkp;
@@ -227,9 +227,8 @@ out_put_idkp:
         return ret;
 }
 
-static int ide_gd_release(struct inode *inode, struct file *filp)
+static int ide_gd_release(struct gendisk *disk, fmode_t mode)
 {
-        struct gendisk *disk = inode->i_bdev->bd_disk;
         struct ide_disk_obj *idkp = ide_drv_g(disk, ide_disk_obj);
         ide_drive_t *drive = idkp->drive;
 
@@ -286,21 +285,20 @@ static int ide_gd_revalidate_disk(struct gendisk *disk)
         return 0;
 }
 
-static int ide_gd_ioctl(struct inode *inode, struct file *file,
+static int ide_gd_ioctl(struct block_device *bdev, fmode_t mode,
                              unsigned int cmd, unsigned long arg)
 {
-        struct block_device *bdev = inode->i_bdev;
         struct ide_disk_obj *idkp = ide_drv_g(bdev->bd_disk, ide_disk_obj);
         ide_drive_t *drive = idkp->drive;
 
-        return drive->disk_ops->ioctl(drive, inode, file, cmd, arg);
+        return drive->disk_ops->ioctl(drive, bdev, mode, cmd, arg);
 }
 
 static struct block_device_operations ide_gd_ops = {
         .owner                  = THIS_MODULE,
         .open                   = ide_gd_open,
         .release                = ide_gd_release,
-        .ioctl                  = ide_gd_ioctl,
+        .locked_ioctl           = ide_gd_ioctl,
         .getgeo                 = ide_gd_getgeo,
         .media_changed          = ide_gd_media_changed,
         .revalidate_disk        = ide_gd_revalidate_disk
diff --git a/drivers/ide/ide-ioctls.c b/drivers/ide/ide-ioctls.c
index a90945f49792..fcde16bb53a7 100644
--- a/drivers/ide/ide-ioctls.c
+++ b/drivers/ide/ide-ioctls.c
@@ -240,8 +240,7 @@ static int generic_drive_reset(ide_drive_t *drive)
         return ret;
 }
 
-int generic_ide_ioctl(ide_drive_t *drive, struct file *file,
-                      struct block_device *bdev,
+int generic_ide_ioctl(ide_drive_t *drive, struct block_device *bdev,
                       unsigned int cmd, unsigned long arg)
 {
         int err;
diff --git a/drivers/ide/ide-tape.c b/drivers/ide/ide-tape.c
index b2b2e5e8d38e..a2d470eb2b55 100644
--- a/drivers/ide/ide-tape.c
+++ b/drivers/ide/ide-tape.c
@@ -2340,35 +2340,30 @@ static const struct file_operations idetape_fops = {
         .release        = idetape_chrdev_release,
 };
 
-static int idetape_open(struct inode *inode, struct file *filp)
+static int idetape_open(struct block_device *bdev, fmode_t mode)
 {
-        struct gendisk *disk = inode->i_bdev->bd_disk;
-        struct ide_tape_obj *tape;
+        struct ide_tape_obj *tape = ide_tape_get(bdev->bd_disk);
 
-        tape = ide_tape_get(disk);
         if (!tape)
                 return -ENXIO;
 
         return 0;
 }
 
-static int idetape_release(struct inode *inode, struct file *filp)
+static int idetape_release(struct gendisk *disk, fmode_t mode)
 {
-        struct gendisk *disk = inode->i_bdev->bd_disk;
         struct ide_tape_obj *tape = ide_drv_g(disk, ide_tape_obj);
 
         ide_tape_put(tape);
-
         return 0;
 }
 
-static int idetape_ioctl(struct inode *inode, struct file *file,
+static int idetape_ioctl(struct block_device *bdev, fmode_t mode,
                         unsigned int cmd, unsigned long arg)
 {
-        struct block_device *bdev = inode->i_bdev;
         struct ide_tape_obj *tape = ide_drv_g(bdev->bd_disk, ide_tape_obj);
         ide_drive_t *drive = tape->drive;
-        int err = generic_ide_ioctl(drive, file, bdev, cmd, arg);
+        int err = generic_ide_ioctl(drive, bdev, cmd, arg);
         if (err == -EINVAL)
                 err = idetape_blkdev_ioctl(drive, cmd, arg);
         return err;
@@ -2378,7 +2373,7 @@ static struct block_device_operations idetape_block_ops = {
         .owner          = THIS_MODULE,
         .open           = idetape_open,
         .release        = idetape_release,
-        .ioctl          = idetape_ioctl,
+        .locked_ioctl   = idetape_ioctl,
 };
 
 static int ide_tape_probe(ide_drive_t *drive)
diff --git a/drivers/md/dm-ioctl.c b/drivers/md/dm-ioctl.c
index dca401dc70a0..777c948180f9 100644
--- a/drivers/md/dm-ioctl.c
+++ b/drivers/md/dm-ioctl.c
@@ -988,9 +988,9 @@ static int dev_wait(struct dm_ioctl *param, size_t param_size)
         return r;
 }
 
-static inline int get_mode(struct dm_ioctl *param)
+static inline fmode_t get_mode(struct dm_ioctl *param)
 {
-        int mode = FMODE_READ | FMODE_WRITE;
+        fmode_t mode = FMODE_READ | FMODE_WRITE;
 
         if (param->flags & DM_READONLY_FLAG)
                 mode = FMODE_READ;
diff --git a/drivers/md/dm-linear.c b/drivers/md/dm-linear.c
index 1b29e9136758..44042becad8a 100644
--- a/drivers/md/dm-linear.c
+++ b/drivers/md/dm-linear.c
@@ -110,20 +110,11 @@ static int linear_status(struct dm_target *ti, status_type_t type,
         return 0;
 }
 
-static int linear_ioctl(struct dm_target *ti, struct inode *inode,
-                        struct file *filp, unsigned int cmd,
+static int linear_ioctl(struct dm_target *ti, unsigned int cmd,
                         unsigned long arg)
 {
         struct linear_c *lc = (struct linear_c *) ti->private;
-        struct block_device *bdev = lc->dev->bdev;
-        struct file fake_file = {};
-        struct dentry fake_dentry = {};
-
-        fake_file.f_mode = lc->dev->mode;
-        fake_file.f_path.dentry = &fake_dentry;
-        fake_dentry.d_inode = bdev->bd_inode;
-
-        return blkdev_driver_ioctl(bdev->bd_inode, &fake_file, bdev->bd_disk, cmd, arg);
+        return __blkdev_driver_ioctl(lc->dev->bdev, lc->dev->mode, cmd, arg);
 }
 
 static int linear_merge(struct dm_target *ti, struct bvec_merge_data *bvm,
diff --git a/drivers/md/dm-mpath.c b/drivers/md/dm-mpath.c
index abf6e8cfaedb..4840733cd903 100644
--- a/drivers/md/dm-mpath.c
+++ b/drivers/md/dm-mpath.c
@@ -1396,19 +1396,15 @@ error:
         return -EINVAL;
 }
 
-static int multipath_ioctl(struct dm_target *ti, struct inode *inode,
-                           struct file *filp, unsigned int cmd,
+static int multipath_ioctl(struct dm_target *ti, unsigned int cmd,
                            unsigned long arg)
 {
         struct multipath *m = (struct multipath *) ti->private;
         struct block_device *bdev = NULL;
+        fmode_t mode = 0;
         unsigned long flags;
-        struct file fake_file = {};
-        struct dentry fake_dentry = {};
         int r = 0;
 
-        fake_file.f_path.dentry = &fake_dentry;
-
         spin_lock_irqsave(&m->lock, flags);
 
         if (!m->current_pgpath)
@@ -1416,8 +1412,7 @@ static int multipath_ioctl(struct dm_target *ti, struct inode *inode,
 
         if (m->current_pgpath) {
                 bdev = m->current_pgpath->path.dev->bdev;
-                fake_dentry.d_inode = bdev->bd_inode;
-                fake_file.f_mode = m->current_pgpath->path.dev->mode;
+                mode = m->current_pgpath->path.dev->mode;
         }
 
         if (m->queue_io)
@@ -1427,8 +1422,7 @@ static int multipath_ioctl(struct dm_target *ti, struct inode *inode,
 
         spin_unlock_irqrestore(&m->lock, flags);
 
-        return r ? : blkdev_driver_ioctl(bdev->bd_inode, &fake_file,
-                                         bdev->bd_disk, cmd, arg);
+        return r ? : __blkdev_driver_ioctl(bdev, mode, cmd, arg);
 }
 
 /*-----------------------------------------------------------------
diff --git a/drivers/md/dm-table.c b/drivers/md/dm-table.c
index 1407eb96f1a4..a63161aec487 100644
--- a/drivers/md/dm-table.c
+++ b/drivers/md/dm-table.c
@@ -43,7 +43,7 @@ struct dm_table {
          * device.  This should be a combination of FMODE_READ
          * and FMODE_WRITE.
          */
-        int mode;
+        fmode_t mode;
 
         /* a list of devices used by this table */
         struct list_head devices;
@@ -217,7 +217,7 @@ static int alloc_targets(struct dm_table *t, unsigned int num)
         return 0;
 }
 
-int dm_table_create(struct dm_table **result, int mode,
+int dm_table_create(struct dm_table **result, fmode_t mode,
                     unsigned num_targets, struct mapped_device *md)
 {
         struct dm_table *t = kzalloc(sizeof(*t), GFP_KERNEL);
@@ -344,7 +344,7 @@ static int open_dev(struct dm_dev_internal *d, dev_t dev,
                 return PTR_ERR(bdev);
         r = bd_claim_by_disk(bdev, _claim_ptr, dm_disk(md));
         if (r)
-                blkdev_put(bdev);
+                blkdev_put(bdev, d->dm_dev.mode);
         else
                 d->dm_dev.bdev = bdev;
         return r;
@@ -359,7 +359,7 @@ static void close_dev(struct dm_dev_internal *d, struct mapped_device *md)
                 return;
 
         bd_release_from_disk(d->dm_dev.bdev, dm_disk(md));
-        blkdev_put(d->dm_dev.bdev);
+        blkdev_put(d->dm_dev.bdev, d->dm_dev.mode);
         d->dm_dev.bdev = NULL;
 }
 
@@ -382,7 +382,7 @@ static int check_device_area(struct dm_dev_internal *dd, sector_t start,
  * careful to leave things as they were if we fail to reopen the
  * device.
  */
-static int upgrade_mode(struct dm_dev_internal *dd, int new_mode,
+static int upgrade_mode(struct dm_dev_internal *dd, fmode_t new_mode,
                         struct mapped_device *md)
 {
         int r;
@@ -408,7 +408,7 @@ static int upgrade_mode(struct dm_dev_internal *dd, int new_mode,
  */
 static int __table_get_device(struct dm_table *t, struct dm_target *ti,
                               const char *path, sector_t start, sector_t len,
-                              int mode, struct dm_dev **result)
+                              fmode_t mode, struct dm_dev **result)
 {
         int r;
         dev_t uninitialized_var(dev);
@@ -528,7 +528,7 @@ void dm_set_device_limits(struct dm_target *ti, struct block_device *bdev)
 EXPORT_SYMBOL_GPL(dm_set_device_limits);
 
 int dm_get_device(struct dm_target *ti, const char *path, sector_t start,
-                  sector_t len, int mode, struct dm_dev **result)
+                  sector_t len, fmode_t mode, struct dm_dev **result)
 {
         int r = __table_get_device(ti->table, ti, path,
                                    start, len, mode, result);
@@ -878,7 +878,7 @@ struct list_head *dm_table_get_devices(struct dm_table *t)
         return &t->devices;
 }
 
-int dm_table_get_mode(struct dm_table *t)
+fmode_t dm_table_get_mode(struct dm_table *t)
 {
         return t->mode;
 }
diff --git a/drivers/md/dm.c b/drivers/md/dm.c
index d1d0cd0f5750..6963ad148408 100644
--- a/drivers/md/dm.c
+++ b/drivers/md/dm.c
@@ -21,7 +21,6 @@
 #include <linux/idr.h>
 #include <linux/hdreg.h>
 #include <linux/blktrace_api.h>
-#include <linux/smp_lock.h>
 
 #define DM_MSG_PREFIX "core"
 
@@ -248,13 +247,13 @@ static void __exit dm_exit(void)
 /*
  * Block device functions
  */
-static int dm_blk_open(struct inode *inode, struct file *file)
+static int dm_blk_open(struct block_device *bdev, fmode_t mode)
 {
         struct mapped_device *md;
 
         spin_lock(&_minor_lock);
 
-        md = inode->i_bdev->bd_disk->private_data;
+        md = bdev->bd_disk->private_data;
         if (!md)
                 goto out;
 
@@ -273,11 +272,9 @@ out:
         return md ? 0 : -ENXIO;
 }
 
-static int dm_blk_close(struct inode *inode, struct file *file)
+static int dm_blk_close(struct gendisk *disk, fmode_t mode)
 {
-        struct mapped_device *md;
-
-        md = inode->i_bdev->bd_disk->private_data;
+        struct mapped_device *md = disk->private_data;
         atomic_dec(&md->open_count);
         dm_put(md);
         return 0;
@@ -314,21 +311,14 @@ static int dm_blk_getgeo(struct block_device *bdev, struct hd_geometry *geo)
         return dm_get_geometry(md, geo);
 }
 
-static int dm_blk_ioctl(struct inode *inode, struct file *file,
+static int dm_blk_ioctl(struct block_device *bdev, fmode_t mode,
                         unsigned int cmd, unsigned long arg)
 {
-        struct mapped_device *md;
-        struct dm_table *map;
+        struct mapped_device *md = bdev->bd_disk->private_data;
+        struct dm_table *map = dm_get_table(md);
         struct dm_target *tgt;
         int r = -ENOTTY;
 
-        /* We don't really need this lock, but we do need 'inode'. */
-        unlock_kernel();
-
-        md = inode->i_bdev->bd_disk->private_data;
-
-        map = dm_get_table(md);
-
         if (!map || !dm_table_get_size(map))
                 goto out;
 
@@ -344,12 +334,11 @@ static int dm_blk_ioctl(struct inode *inode, struct file *file,
         }
 
         if (tgt->type->ioctl)
-                r = tgt->type->ioctl(tgt, inode, file, cmd, arg);
+                r = tgt->type->ioctl(tgt, cmd, arg);
 
 out:
         dm_table_put(map);
 
-        lock_kernel();
         return r;
 }
 
diff --git a/drivers/md/md.c b/drivers/md/md.c
index aaa3d465de4e..c1a837ca193c 100644
--- a/drivers/md/md.c
+++ b/drivers/md/md.c
@@ -1520,7 +1520,7 @@ static int lock_rdev(mdk_rdev_t *rdev, dev_t dev, int shared)
         if (err) {
                 printk(KERN_ERR "md: could not bd_claim %s.\n",
                         bdevname(bdev, b));
-                blkdev_put(bdev);
+                blkdev_put(bdev, FMODE_READ|FMODE_WRITE);
                 return err;
         }
         if (!shared)
@@ -1536,7 +1536,7 @@ static void unlock_rdev(mdk_rdev_t *rdev)
         if (!bdev)
                 MD_BUG();
         bd_release(bdev);
-        blkdev_put(bdev);
+        blkdev_put(bdev, FMODE_READ|FMODE_WRITE);
 }
 
 void md_autodetect_dev(dev_t dev);
@@ -4785,7 +4785,7 @@ static int md_getgeo(struct block_device *bdev, struct hd_geometry *geo)
         return 0;
 }
 
-static int md_ioctl(struct inode *inode, struct file *file,
+static int md_ioctl(struct block_device *bdev, fmode_t mode,
                         unsigned int cmd, unsigned long arg)
 {
         int err = 0;
@@ -4823,7 +4823,7 @@ static int md_ioctl(struct inode *inode, struct file *file,
          * Commands creating/starting a new array:
          */
 
-        mddev = inode->i_bdev->bd_disk->private_data;
+        mddev = bdev->bd_disk->private_data;
 
         if (!mddev) {
                 BUG();
@@ -4996,13 +4996,13 @@ abort:
         return err;
 }
 
-static int md_open(struct inode *inode, struct file *file)
+static int md_open(struct block_device *bdev, fmode_t mode)
 {
         /*
          * Succeed if we can lock the mddev, which confirms that
          * it isn't being stopped right now.
          */
-        mddev_t *mddev = inode->i_bdev->bd_disk->private_data;
+        mddev_t *mddev = bdev->bd_disk->private_data;
         int err;
 
         if ((err = mutex_lock_interruptible_nested(&mddev->reconfig_mutex, 1)))
@@ -5013,14 +5013,14 @@ static int md_open(struct inode *inode, struct file *file)
         atomic_inc(&mddev->openers);
         mddev_unlock(mddev);
 
-        check_disk_change(inode->i_bdev);
+        check_disk_change(bdev);
  out:
         return err;
 }
 
-static int md_release(struct inode *inode, struct file * file)
+static int md_release(struct gendisk *disk, fmode_t mode)
 {
-        mddev_t *mddev = inode->i_bdev->bd_disk->private_data;
+        mddev_t *mddev = disk->private_data;
 
         BUG_ON(!mddev);
         atomic_dec(&mddev->openers);
@@ -5048,7 +5048,7 @@ static struct block_device_operations md_fops =
         .owner          = THIS_MODULE,
         .open           = md_open,
         .release        = md_release,
-        .ioctl          = md_ioctl,
+        .locked_ioctl   = md_ioctl,
         .getgeo         = md_getgeo,
         .media_changed  = md_media_changed,
         .revalidate_disk= md_revalidate,
diff --git a/drivers/memstick/core/mspro_block.c b/drivers/memstick/core/mspro_block.c
index 5263913e0c69..7911151e56a3 100644
--- a/drivers/memstick/core/mspro_block.c
+++ b/drivers/memstick/core/mspro_block.c
@@ -172,9 +172,9 @@ static int mspro_block_complete_req(struct memstick_dev *card, int error);
 
 /*** Block device ***/
 
-static int mspro_block_bd_open(struct inode *inode, struct file *filp)
+static int mspro_block_bd_open(struct block_device *bdev, fmode_t mode)
 {
-        struct gendisk *disk = inode->i_bdev->bd_disk;
+        struct gendisk *disk = bdev->bd_disk;
         struct mspro_block_data *msb = disk->private_data;
         int rc = -ENXIO;
 
@@ -182,7 +182,7 @@ static int mspro_block_bd_open(struct inode *inode, struct file *filp)
 
         if (msb && msb->card) {
                 msb->usage_count++;
-                if ((filp->f_mode & FMODE_WRITE) && msb->read_only)
+                if ((mode & FMODE_WRITE) && msb->read_only)
                         rc = -EROFS;
                 else
                         rc = 0;
@@ -218,9 +218,8 @@ static int mspro_block_disk_release(struct gendisk *disk)
         return 0;
 }
 
-static int mspro_block_bd_release(struct inode *inode, struct file *filp)
+static int mspro_block_bd_release(struct gendisk *disk, fmode_t mode)
 {
-        struct gendisk *disk = inode->i_bdev->bd_disk;
         return mspro_block_disk_release(disk);
 }
 
diff --git a/drivers/message/i2o/i2o_block.c b/drivers/message/i2o/i2o_block.c
index 81483de8c0fd..11a617ab4243 100644
--- a/drivers/message/i2o/i2o_block.c
+++ b/drivers/message/i2o/i2o_block.c
@@ -575,9 +575,9 @@ static void i2o_block_biosparam(unsigned long capacity, unsigned short *cyls,
  *
  *      Returns 0 on success or negative error code on failure.
  */
-static int i2o_block_open(struct inode *inode, struct file *file)
+static int i2o_block_open(struct block_device *bdev, fmode_t mode)
 {
-        struct i2o_block_device *dev = inode->i_bdev->bd_disk->private_data;
+        struct i2o_block_device *dev = bdev->bd_disk->private_data;
 
         if (!dev->i2o_dev)
                 return -ENODEV;
@@ -604,9 +604,8 @@ static int i2o_block_open(struct inode *inode, struct file *file)
  *
  *      Returns 0 on success or negative error code on failure.
  */
-static int i2o_block_release(struct inode *inode, struct file *file)
+static int i2o_block_release(struct gendisk *disk, fmode_t mode)
 {
-        struct gendisk *disk = inode->i_bdev->bd_disk;
         struct i2o_block_device *dev = disk->private_data;
         u8 operation;
 
@@ -653,10 +652,10 @@ static int i2o_block_getgeo(struct block_device *bdev, struct hd_geometry *geo)
  *
  *      Return 0 on success or negative error on failure.
  */
-static int i2o_block_ioctl(struct inode *inode, struct file *file,
+static int i2o_block_ioctl(struct block_device *bdev, fmode_t mode,
                            unsigned int cmd, unsigned long arg)
 {
-        struct gendisk *disk = inode->i_bdev->bd_disk;
+        struct gendisk *disk = bdev->bd_disk;
         struct i2o_block_device *dev = disk->private_data;
 
         /* Anyone capable of this syscall can do *real bad* things */
@@ -933,7 +932,7 @@ static struct block_device_operations i2o_block_fops = {
         .owner = THIS_MODULE,
         .open = i2o_block_open,
         .release = i2o_block_release,
-        .ioctl = i2o_block_ioctl,
+        .locked_ioctl = i2o_block_ioctl,
         .getgeo = i2o_block_getgeo,
         .media_changed = i2o_block_media_changed
 };
diff --git a/drivers/mmc/card/block.c b/drivers/mmc/card/block.c
index 24c97d3d16bb..3d067c35185d 100644
--- a/drivers/mmc/card/block.c
+++ b/drivers/mmc/card/block.c
@@ -92,18 +92,17 @@ static void mmc_blk_put(struct mmc_blk_data *md)
         mutex_unlock(&open_lock);
 }
 
-static int mmc_blk_open(struct inode *inode, struct file *filp)
+static int mmc_blk_open(struct block_device *bdev, fmode_t mode)
 {
-        struct mmc_blk_data *md;
+        struct mmc_blk_data *md = mmc_blk_get(bdev->bd_disk);
         int ret = -ENXIO;
 
-        md = mmc_blk_get(inode->i_bdev->bd_disk);
         if (md) {
                 if (md->usage == 2)
-                        check_disk_change(inode->i_bdev);
+                        check_disk_change(bdev);
                 ret = 0;
 
-                if ((filp->f_mode & FMODE_WRITE) && md->read_only) {
+                if ((mode & FMODE_WRITE) && md->read_only) {
                         mmc_blk_put(md);
                         ret = -EROFS;
                 }
@@ -112,9 +111,9 @@ static int mmc_blk_open(struct inode *inode, struct file *filp)
         return ret;
 }
 
-static int mmc_blk_release(struct inode *inode, struct file *filp)
+static int mmc_blk_release(struct gendisk *disk, fmode_t mode)
 {
-        struct mmc_blk_data *md = inode->i_bdev->bd_disk->private_data;
+        struct mmc_blk_data *md = disk->private_data;
 
         mmc_blk_put(md);
         return 0;
diff --git a/drivers/mtd/devices/block2mtd.c b/drivers/mtd/devices/block2mtd.c
index 91fbba767635..8c295f40d2ac 100644
--- a/drivers/mtd/devices/block2mtd.c
+++ b/drivers/mtd/devices/block2mtd.c
@@ -224,7 +224,7 @@ static void block2mtd_free_device(struct block2mtd_dev *dev)
         if (dev->blkdev) {
                 invalidate_mapping_pages(dev->blkdev->bd_inode->i_mapping,
                                         0, -1);
-                close_bdev_excl(dev->blkdev);
+                close_bdev_exclusive(dev->blkdev, FMODE_READ|FMODE_WRITE);
         }
 
         kfree(dev);
@@ -246,7 +246,7 @@ static struct block2mtd_dev *add_device(char *devname, int erase_size)
                 return NULL;
 
         /* Get a handle on the device */
-        bdev = open_bdev_excl(devname, O_RDWR, NULL);
+        bdev = open_bdev_exclusive(devname, FMODE_READ|FMODE_WRITE, NULL);
 #ifndef MODULE
         if (IS_ERR(bdev)) {
 
diff --git a/drivers/mtd/mtd_blkdevs.c b/drivers/mtd/mtd_blkdevs.c
index 681d5aca2af4..1409f01406f6 100644
--- a/drivers/mtd/mtd_blkdevs.c
+++ b/drivers/mtd/mtd_blkdevs.c
@@ -133,15 +133,12 @@ static void mtd_blktrans_request(struct request_queue *rq)
 }
 
 
-static int blktrans_open(struct inode *i, struct file *f)
+static int blktrans_open(struct block_device *bdev, fmode_t mode)
 {
-        struct mtd_blktrans_dev *dev;
-        struct mtd_blktrans_ops *tr;
+        struct mtd_blktrans_dev *dev = bdev->bd_disk->private_data;
+        struct mtd_blktrans_ops *tr = dev->tr;
         int ret = -ENODEV;
 
-        dev = i->i_bdev->bd_disk->private_data;
-        tr = dev->tr;
-
         if (!try_module_get(dev->mtd->owner))
                 goto out;
 
@@ -164,15 +161,12 @@ static int blktrans_open(struct inode *i, struct file *f)
         return ret;
 }
 
-static int blktrans_release(struct inode *i, struct file *f)
+static int blktrans_release(struct gendisk *disk, fmode_t mode)
 {
-        struct mtd_blktrans_dev *dev;
-        struct mtd_blktrans_ops *tr;
+        struct mtd_blktrans_dev *dev = disk->private_data;
+        struct mtd_blktrans_ops *tr = dev->tr;
         int ret = 0;
 
-        dev = i->i_bdev->bd_disk->private_data;
-        tr = dev->tr;
-
         if (tr->release)
                 ret = tr->release(dev);
 
@@ -194,10 +188,10 @@ static int blktrans_getgeo(struct block_device *bdev, struct hd_geometry *geo)
         return -ENOTTY;
 }
 
-static int blktrans_ioctl(struct inode *inode, struct file *file,
+static int blktrans_ioctl(struct block_device *bdev, fmode_t mode,
                               unsigned int cmd, unsigned long arg)
 {
-        struct mtd_blktrans_dev *dev = inode->i_bdev->bd_disk->private_data;
+        struct mtd_blktrans_dev *dev = bdev->bd_disk->private_data;
         struct mtd_blktrans_ops *tr = dev->tr;
 
         switch (cmd) {
@@ -215,7 +209,7 @@ static struct block_device_operations mtd_blktrans_ops = {
         .owner          = THIS_MODULE,
         .open           = blktrans_open,
         .release        = blktrans_release,
-        .ioctl          = blktrans_ioctl,
+        .locked_ioctl   = blktrans_ioctl,
         .getgeo         = blktrans_getgeo,
 };
 
diff --git a/drivers/mtd/mtdchar.c b/drivers/mtd/mtdchar.c
index 963840e9b5bf..bcffeda2df3d 100644
--- a/drivers/mtd/mtdchar.c
+++ b/drivers/mtd/mtdchar.c
@@ -96,7 +96,7 @@ static int mtd_open(struct inode *inode, struct file *file)
                 return -ENODEV;
 
         /* You can't open the RO devices RW */
-        if ((file->f_mode & 2) && (minor & 1))
+        if ((file->f_mode & FMODE_WRITE) && (minor & 1))
                 return -EACCES;
 
         lock_kernel();
@@ -114,7 +114,7 @@ static int mtd_open(struct inode *inode, struct file *file)
         }
 
         /* You can't open it RW if it's not a writeable device */
-        if ((file->f_mode & 2) && !(mtd->flags & MTD_WRITEABLE)) {
+        if ((file->f_mode & FMODE_WRITE) && !(mtd->flags & MTD_WRITEABLE)) {
                 put_mtd_device(mtd);
                 ret = -EACCES;
                 goto out;
@@ -144,7 +144,7 @@ static int mtd_close(struct inode *inode, struct file *file)
         DEBUG(MTD_DEBUG_LEVEL0, "MTD_close\n");
 
         /* Only sync if opened RW */
-        if ((file->f_mode & 2) && mtd->sync)
+        if ((file->f_mode & FMODE_WRITE) && mtd->sync)
                 mtd->sync(mtd);
 
         put_mtd_device(mtd);
@@ -443,7 +443,7 @@ static int mtd_ioctl(struct inode *inode, struct file *file,
         {
                 struct erase_info *erase;
 
-                if(!(file->f_mode & 2))
+                if(!(file->f_mode & FMODE_WRITE))
                         return -EPERM;
 
                 erase=kzalloc(sizeof(struct erase_info),GFP_KERNEL);
@@ -497,7 +497,7 @@ static int mtd_ioctl(struct inode *inode, struct file *file,
                 struct mtd_oob_buf __user *user_buf = argp;
                 uint32_t retlen;
 
-                if(!(file->f_mode & 2))
+                if(!(file->f_mode & FMODE_WRITE))
                         return -EPERM;
 
                 if (copy_from_user(&buf, argp, sizeof(struct mtd_oob_buf)))
diff --git a/drivers/parisc/eisa_eeprom.c b/drivers/parisc/eisa_eeprom.c
index 5ac207932fd7..685d94e69d44 100644
--- a/drivers/parisc/eisa_eeprom.c
+++ b/drivers/parisc/eisa_eeprom.c
@@ -86,7 +86,7 @@ static int eisa_eeprom_open(struct inode *inode, struct file *file)
 {
         cycle_kernel_lock();
 
-        if (file->f_mode & 2)
+        if (file->f_mode & FMODE_WRITE)
                 return -EINVAL;
    
         return 0;
diff --git a/drivers/s390/block/dasd.c b/drivers/s390/block/dasd.c
index 0a225ccda026..4b76fca64a6f 100644
--- a/drivers/s390/block/dasd.c
+++ b/drivers/s390/block/dasd.c
@@ -2011,10 +2011,9 @@ static void dasd_flush_request_queue(struct dasd_block *block)
         spin_unlock_irq(&block->request_queue_lock);
 }
 
-static int dasd_open(struct inode *inp, struct file *filp)
+static int dasd_open(struct block_device *bdev, fmode_t mode)
 {
-        struct gendisk *disk = inp->i_bdev->bd_disk;
-        struct dasd_block *block = disk->private_data;
+        struct dasd_block *block = bdev->bd_disk->private_data;
         struct dasd_device *base = block->base;
         int rc;
 
@@ -2052,9 +2051,8 @@ unlock:
         return rc;
 }
 
-static int dasd_release(struct inode *inp, struct file *filp)
+static int dasd_release(struct gendisk *disk, fmode_t mode)
 {
-        struct gendisk *disk = inp->i_bdev->bd_disk;
         struct dasd_block *block = disk->private_data;
 
         atomic_dec(&block->open_count);
@@ -2089,8 +2087,7 @@ dasd_device_operations = {
         .owner          = THIS_MODULE,
         .open           = dasd_open,
         .release        = dasd_release,
-        .ioctl          = dasd_ioctl,
-        .compat_ioctl   = dasd_compat_ioctl,
+        .locked_ioctl   = dasd_ioctl,
         .getgeo         = dasd_getgeo,
 };
 
diff --git a/drivers/s390/block/dasd_genhd.c b/drivers/s390/block/dasd_genhd.c
index aee6565aaf98..e99d566b69cc 100644
--- a/drivers/s390/block/dasd_genhd.c
+++ b/drivers/s390/block/dasd_genhd.c
@@ -99,7 +99,7 @@ int dasd_scan_partitions(struct dasd_block *block)
         struct block_device *bdev;
 
         bdev = bdget_disk(block->gdp, 0);
-        if (!bdev || blkdev_get(bdev, FMODE_READ, 1) < 0)
+        if (!bdev || blkdev_get(bdev, FMODE_READ) < 0)
                 return -ENODEV;
         /*
          * See fs/partition/check.c:register_disk,rescan_partitions
@@ -152,7 +152,7 @@ void dasd_destroy_partitions(struct dasd_block *block)
 
         invalidate_partition(block->gdp, 0);
         /* Matching blkdev_put to the blkdev_get in dasd_scan_partitions. */
-        blkdev_put(bdev);
+        blkdev_put(bdev, FMODE_READ);
         set_capacity(block->gdp, 0);
 }
 
diff --git a/drivers/s390/block/dasd_int.h b/drivers/s390/block/dasd_int.h
index 489d5fe488fb..05a14536c369 100644
--- a/drivers/s390/block/dasd_int.h
+++ b/drivers/s390/block/dasd_int.h
@@ -610,8 +610,7 @@ int dasd_scan_partitions(struct dasd_block *);
 void dasd_destroy_partitions(struct dasd_block *);
 
 /* externals in dasd_ioctl.c */
-int  dasd_ioctl(struct inode *, struct file *, unsigned int, unsigned long);
-long dasd_compat_ioctl(struct file *, unsigned int, unsigned long);
+int  dasd_ioctl(struct block_device *, fmode_t, unsigned int, unsigned long);
 
 /* externals in dasd_proc.c */
 int dasd_proc_init(void);
diff --git a/drivers/s390/block/dasd_ioctl.c b/drivers/s390/block/dasd_ioctl.c
index 91a64630cb0f..b82d816d9ef7 100644
--- a/drivers/s390/block/dasd_ioctl.c
+++ b/drivers/s390/block/dasd_ioctl.c
@@ -366,10 +366,9 @@ static int dasd_ioctl_readall_cmb(struct dasd_block *block, unsigned int cmd,
 }
 
 int
-dasd_ioctl(struct inode *inode, struct file *file,
+dasd_ioctl(struct block_device *bdev, fmode_t mode,
            unsigned int cmd, unsigned long arg)
 {
-        struct block_device *bdev = inode->i_bdev;
         struct dasd_block *block = bdev->bd_disk->private_data;
         void __user *argp = (void __user *)arg;
 
@@ -421,15 +420,3 @@ dasd_ioctl(struct inode *inode, struct file *file,
                 return -EINVAL;
         }
 }
-
-long
-dasd_compat_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
-{
-        int rval;
-
-        lock_kernel();
-        rval = dasd_ioctl(filp->f_path.dentry->d_inode, filp, cmd, arg);
-        unlock_kernel();
-
-        return (rval == -EINVAL) ? -ENOIOCTLCMD : rval;
-}
diff --git a/drivers/s390/block/dcssblk.c b/drivers/s390/block/dcssblk.c
index a7ff167d5b81..63f26a135fe5 100644
--- a/drivers/s390/block/dcssblk.c
+++ b/drivers/s390/block/dcssblk.c
@@ -31,8 +31,8 @@
 #define PRINT_WARN(x...)  printk(KERN_WARNING DCSSBLK_NAME " warning: " x)
 #define PRINT_ERR(x...)   printk(KERN_ERR DCSSBLK_NAME " error: " x)
 
-static int dcssblk_open(struct inode *inode, struct file *filp);
-static int dcssblk_release(struct inode *inode, struct file *filp);
+static int dcssblk_open(struct block_device *bdev, fmode_t mode);
+static int dcssblk_release(struct gendisk *disk, fmode_t mode);
 static int dcssblk_make_request(struct request_queue *q, struct bio *bio);
 static int dcssblk_direct_access(struct block_device *bdev, sector_t secnum,
                                  void **kaddr, unsigned long *pfn);
@@ -776,32 +776,31 @@ out_buf:
 }
 
 static int
-dcssblk_open(struct inode *inode, struct file *filp)
+dcssblk_open(struct block_device *bdev, fmode_t mode)
 {
         struct dcssblk_dev_info *dev_info;
         int rc;
 
-        dev_info = inode->i_bdev->bd_disk->private_data;
+        dev_info = bdev->bd_disk->private_data;
         if (NULL == dev_info) {
                 rc = -ENODEV;
                 goto out;
         }
         atomic_inc(&dev_info->use_count);
-        inode->i_bdev->bd_block_size = 4096;
+        bdev->bd_block_size = 4096;
         rc = 0;
 out:
         return rc;
 }
 
 static int
-dcssblk_release(struct inode *inode, struct file *filp)
+dcssblk_release(struct gendisk *disk, fmode_t mode)
 {
-        struct dcssblk_dev_info *dev_info;
+        struct dcssblk_dev_info *dev_info = disk->private_data;
         struct segment_info *entry;
         int rc;
 
-        dev_info = inode->i_bdev->bd_disk->private_data;
-        if (NULL == dev_info) {
+        if (!dev_info) {
                 rc = -ENODEV;
                 goto out;
         }
diff --git a/drivers/s390/char/tape_block.c b/drivers/s390/char/tape_block.c
index a25b8bf54f41..023803dbb0c7 100644
--- a/drivers/s390/char/tape_block.c
+++ b/drivers/s390/char/tape_block.c
@@ -43,9 +43,9 @@
 /*
  * file operation structure for tape block frontend
  */
-static int tapeblock_open(struct inode *, struct file *);
-static int tapeblock_release(struct inode *, struct file *);
-static int tapeblock_ioctl(struct inode *, struct file *, unsigned int,
+static int tapeblock_open(struct block_device *, fmode_t);
+static int tapeblock_release(struct gendisk *, fmode_t);
+static int tapeblock_ioctl(struct block_device *, fmode_t, unsigned int,
                                 unsigned long);
 static int tapeblock_medium_changed(struct gendisk *);
 static int tapeblock_revalidate_disk(struct gendisk *);
@@ -54,7 +54,7 @@ static struct block_device_operations tapeblock_fops = {
         .owner           = THIS_MODULE,
         .open            = tapeblock_open,
         .release         = tapeblock_release,
-        .ioctl           = tapeblock_ioctl,
+        .locked_ioctl           = tapeblock_ioctl,
         .media_changed   = tapeblock_medium_changed,
         .revalidate_disk = tapeblock_revalidate_disk,
 };
@@ -364,13 +364,12 @@ tapeblock_medium_changed(struct gendisk *disk)
  * Block frontend tape device open function.
  */
 static int
-tapeblock_open(struct inode *inode, struct file *filp)
+tapeblock_open(struct block_device *bdev, fmode_t mode)
 {
-        struct gendisk *        disk;
+        struct gendisk *        disk = bdev->bd_disk;
         struct tape_device *    device;
         int                     rc;
 
-        disk   = inode->i_bdev->bd_disk;
         device = tape_get_device_reference(disk->private_data);
 
         if (device->required_tapemarks) {
@@ -410,9 +409,8 @@ release:
  *       we just get the pointer here and release the reference.
  */
 static int
-tapeblock_release(struct inode *inode, struct file *filp)
+tapeblock_release(struct gendisk *disk, fmode_t mode)
 {
-        struct gendisk *disk = inode->i_bdev->bd_disk;
         struct tape_device *device = disk->private_data;
 
         tape_state_set(device, TS_IN_USE);
@@ -427,22 +425,21 @@ tapeblock_release(struct inode *inode, struct file *filp)
  */
 static int
 tapeblock_ioctl(
-        struct inode *          inode,
-        struct file *           file,
+        struct block_device *   bdev,
+        fmode_t                 mode,
         unsigned int            command,
         unsigned long           arg
 ) {
         int rc;
         int minor;
-        struct gendisk *disk;
+        struct gendisk *disk = bdev->bd_disk;
         struct tape_device *device;
 
         rc     = 0;
-        disk   = inode->i_bdev->bd_disk;
         BUG_ON(!disk);
         device = disk->private_data;
         BUG_ON(!device);
-        minor  = iminor(inode);
+        minor  = MINOR(bdev->bd_dev);
 
         DBF_LH(6, "tapeblock_ioctl(0x%0x)\n", command);
         DBF_LH(6, "device = %d:%d\n", tapeblock_major, minor);
diff --git a/drivers/scsi/ide-scsi.c b/drivers/scsi/ide-scsi.c
index afc96e844a25..2370fd82ebfe 100644
--- a/drivers/scsi/ide-scsi.c
+++ b/drivers/scsi/ide-scsi.c
@@ -452,40 +452,34 @@ static ide_driver_t idescsi_driver = {
 #endif
 };
 
-static int idescsi_ide_open(struct inode *inode, struct file *filp)
+static int idescsi_ide_open(struct block_device *bdev, fmode_t mode)
 {
-        struct gendisk *disk = inode->i_bdev->bd_disk;
-        struct ide_scsi_obj *scsi;
+        struct ide_scsi_obj *scsi = ide_scsi_get(bdev->bd_disk);
 
-        if (!(scsi = ide_scsi_get(disk)))
+        if (!scsi)
                 return -ENXIO;
 
         return 0;
 }
 
-static int idescsi_ide_release(struct inode *inode, struct file *filp)
+static int idescsi_ide_release(struct gendisk *disk, fmode_t mode)
 {
-        struct gendisk *disk = inode->i_bdev->bd_disk;
-        struct ide_scsi_obj *scsi = ide_scsi_g(disk);
-
-        ide_scsi_put(scsi);
-
+        ide_scsi_put(ide_scsi_g(disk));
         return 0;
 }
 
-static int idescsi_ide_ioctl(struct inode *inode, struct file *file,
+static int idescsi_ide_ioctl(struct block_device *bdev, fmode_t mode,
                         unsigned int cmd, unsigned long arg)
 {
-        struct block_device *bdev = inode->i_bdev;
         struct ide_scsi_obj *scsi = ide_scsi_g(bdev->bd_disk);
-        return generic_ide_ioctl(scsi->drive, file, bdev, cmd, arg);
+        return generic_ide_ioctl(scsi->drive, bdev, cmd, arg);
 }
 
 static struct block_device_operations idescsi_ops = {
         .owner          = THIS_MODULE,
         .open           = idescsi_ide_open,
         .release        = idescsi_ide_release,
-        .ioctl          = idescsi_ide_ioctl,
+        .locked_ioctl   = idescsi_ide_ioctl,
 };
 
 static int idescsi_slave_configure(struct scsi_device * sdp)
diff --git a/drivers/scsi/scsi_ioctl.c b/drivers/scsi/scsi_ioctl.c
index 28b19ef26309..dc1cfb2fd76b 100644
--- a/drivers/scsi/scsi_ioctl.c
+++ b/drivers/scsi/scsi_ioctl.c
@@ -237,7 +237,7 @@ int scsi_ioctl(struct scsi_device *sdev, int cmd, void __user *arg)
         case SCSI_IOCTL_SEND_COMMAND:
                 if (!capable(CAP_SYS_ADMIN) || !capable(CAP_SYS_RAWIO))
                         return -EACCES;
-                return sg_scsi_ioctl(NULL, sdev->request_queue, NULL, arg);
+                return sg_scsi_ioctl(sdev->request_queue, NULL, 0, arg);
         case SCSI_IOCTL_DOORLOCK:
                 return scsi_set_medium_removal(sdev, SCSI_REMOVAL_PREVENT);
         case SCSI_IOCTL_DOORUNLOCK:
@@ -277,14 +277,14 @@ EXPORT_SYMBOL(scsi_ioctl);
  * @filp: either NULL or a &struct file which must have the O_NONBLOCK flag.
  */
 int scsi_nonblockable_ioctl(struct scsi_device *sdev, int cmd,
-                            void __user *arg, struct file *filp)
+                            void __user *arg, int ndelay)
 {
         int val, result;
 
         /* The first set of iocts may be executed even if we're doing
          * error processing, as long as the device was opened
          * non-blocking */
-        if (filp && (filp->f_flags & O_NONBLOCK)) {
+        if (ndelay) {
                 if (scsi_host_in_recovery(sdev->host))
                         return -ENODEV;
         } else if (!scsi_block_when_processing_errors(sdev))
diff --git a/drivers/scsi/sd.c b/drivers/scsi/sd.c
index 7c4d2e68df1c..43f34c73df12 100644
--- a/drivers/scsi/sd.c
+++ b/drivers/scsi/sd.c
@@ -609,17 +609,15 @@ static int sd_prep_fn(struct request_queue *q, struct request *rq)
  *      In the latter case @inode and @filp carry an abridged amount
  *      of information as noted above.
  **/
-static int sd_open(struct inode *inode, struct file *filp)
+static int sd_open(struct block_device *bdev, fmode_t mode)
 {
-        struct gendisk *disk = inode->i_bdev->bd_disk;
-        struct scsi_disk *sdkp;
+        struct scsi_disk *sdkp = scsi_disk_get(bdev->bd_disk);
         struct scsi_device *sdev;
         int retval;
 
-        if (!(sdkp = scsi_disk_get(disk)))
+        if (!sdkp)
                 return -ENXIO;
 
-
         SCSI_LOG_HLQUEUE(3, sd_printk(KERN_INFO, sdkp, "sd_open\n"));
 
         sdev = sdkp->device;
@@ -633,14 +631,13 @@ static int sd_open(struct inode *inode, struct file *filp)
                 goto error_out;
 
         if (sdev->removable || sdkp->write_prot)
-                check_disk_change(inode->i_bdev);
+                check_disk_change(bdev);
 
         /*
          * If the drive is empty, just let the open fail.
          */
         retval = -ENOMEDIUM;
-        if (sdev->removable && !sdkp->media_present &&
-            !(filp->f_flags & O_NDELAY))
+        if (sdev->removable && !sdkp->media_present && !(mode & FMODE_NDELAY))
                 goto error_out;
 
         /*
@@ -648,7 +645,7 @@ static int sd_open(struct inode *inode, struct file *filp)
          * if the user expects to be able to write to the thing.
          */
         retval = -EROFS;
-        if (sdkp->write_prot && (filp->f_mode & FMODE_WRITE))
+        if (sdkp->write_prot && (mode & FMODE_WRITE))
                 goto error_out;
 
         /*
@@ -684,9 +681,8 @@ error_out:
  *      Note: may block (uninterruptible) if error recovery is underway
  *      on this disk.
  **/
-static int sd_release(struct inode *inode, struct file *filp)
+static int sd_release(struct gendisk *disk, fmode_t mode)
 {
-        struct gendisk *disk = inode->i_bdev->bd_disk;
         struct scsi_disk *sdkp = scsi_disk(disk);
         struct scsi_device *sdev = sdkp->device;
 
@@ -743,10 +739,9 @@ static int sd_getgeo(struct block_device *bdev, struct hd_geometry *geo)
  *      Note: most ioctls are forward onto the block subsystem or further
  *      down in the scsi subsystem.
  **/
-static int sd_ioctl(struct inode * inode, struct file * filp, 
+static int sd_ioctl(struct block_device *bdev, fmode_t mode,
                     unsigned int cmd, unsigned long arg)
 {
-        struct block_device *bdev = inode->i_bdev;
         struct gendisk *disk = bdev->bd_disk;
         struct scsi_device *sdp = scsi_disk(disk)->device;
         void __user *p = (void __user *)arg;
@@ -761,7 +756,8 @@ static int sd_ioctl(struct inode * inode, struct file * filp,
          * may try and take the device offline, in which case all further
          * access to the device is prohibited.
          */
-        error = scsi_nonblockable_ioctl(sdp, cmd, p, filp);
+        error = scsi_nonblockable_ioctl(sdp, cmd, p,
+                                        (mode & FMODE_NDELAY_NOW) != 0);
         if (!scsi_block_when_processing_errors(sdp) || !error)
                 return error;
 
@@ -775,7 +771,7 @@ static int sd_ioctl(struct inode * inode, struct file * filp,
                 case SCSI_IOCTL_GET_BUS_NUMBER:
                         return scsi_ioctl(sdp, cmd, p);
                 default:
-                        error = scsi_cmd_ioctl(filp, disk->queue, disk, cmd, p);
+                        error = scsi_cmd_ioctl(disk->queue, disk, mode, cmd, p);
                         if (error != -ENOTTY)
                                 return error;
         }
@@ -928,11 +924,10 @@ static void sd_rescan(struct device *dev)
  * This gets directly called from VFS. When the ioctl 
  * is not recognized we go back to the other translation paths. 
  */
-static long sd_compat_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
+static int sd_compat_ioctl(struct block_device *bdev, fmode_t mode,
+                           unsigned int cmd, unsigned long arg)
 {
-        struct block_device *bdev = file->f_path.dentry->d_inode->i_bdev;
-        struct gendisk *disk = bdev->bd_disk;
-        struct scsi_device *sdev = scsi_disk(disk)->device;
+        struct scsi_device *sdev = scsi_disk(bdev->bd_disk)->device;
 
         /*
          * If we are in the middle of error recovery, don't let anyone
@@ -962,7 +957,7 @@ static struct block_device_operations sd_fops = {
         .owner                  = THIS_MODULE,
         .open                   = sd_open,
         .release                = sd_release,
-        .ioctl                  = sd_ioctl,
+        .locked_ioctl           = sd_ioctl,
         .getgeo                 = sd_getgeo,
 #ifdef CONFIG_COMPAT
         .compat_ioctl           = sd_compat_ioctl,
diff --git a/drivers/scsi/sg.c b/drivers/scsi/sg.c
index 93bd59a1ed79..9adf35bd8b56 100644
--- a/drivers/scsi/sg.c
+++ b/drivers/scsi/sg.c
@@ -1059,7 +1059,7 @@ sg_ioctl(struct inode *inode, struct file *filp,
                         if (sg_allow_access(filp, &opcode))
                                 return -EPERM;
                 }
-                return sg_scsi_ioctl(filp, sdp->device->request_queue, NULL, p);
+                return sg_scsi_ioctl(sdp->device->request_queue, NULL, filp->f_mode, p);
         case SG_SET_DEBUG:
                 result = get_user(val, ip);
                 if (result)
diff --git a/drivers/scsi/sr.c b/drivers/scsi/sr.c
index 0f17009c99d2..62b6633e3a97 100644
--- a/drivers/scsi/sr.c
+++ b/drivers/scsi/sr.c
@@ -471,38 +471,31 @@ static int sr_prep_fn(struct request_queue *q, struct request *rq)
         return scsi_prep_return(q, rq, ret);
 }
 
-static int sr_block_open(struct inode *inode, struct file *file)
+static int sr_block_open(struct block_device *bdev, fmode_t mode)
 {
-        struct gendisk *disk = inode->i_bdev->bd_disk;
-        struct scsi_cd *cd;
-        int ret = 0;
-
-        if(!(cd = scsi_cd_get(disk)))
-                return -ENXIO;
-
-        if((ret = cdrom_open(&cd->cdi, inode, file)) != 0)
-                scsi_cd_put(cd);
+        struct scsi_cd *cd = scsi_cd_get(bdev->bd_disk);
+        int ret = -ENXIO;
 
+        if (cd) {
+                ret = cdrom_open(&cd->cdi, bdev, mode);
+                if (ret)
+                        scsi_cd_put(cd);
+        }
         return ret;
 }
 
-static int sr_block_release(struct inode *inode, struct file *file)
+static int sr_block_release(struct gendisk *disk, fmode_t mode)
 {
-        int ret;
-        struct scsi_cd *cd = scsi_cd(inode->i_bdev->bd_disk);
-        ret = cdrom_release(&cd->cdi, file);
-        if(ret)
-                return ret;
-        
+        struct scsi_cd *cd = scsi_cd(disk);
+        cdrom_release(&cd->cdi, mode);
         scsi_cd_put(cd);
-
         return 0;
 }
 
-static int sr_block_ioctl(struct inode *inode, struct file *file, unsigned cmd,
+static int sr_block_ioctl(struct block_device *bdev, fmode_t mode, unsigned cmd,
                           unsigned long arg)
 {
-        struct scsi_cd *cd = scsi_cd(inode->i_bdev->bd_disk);
+        struct scsi_cd *cd = scsi_cd(bdev->bd_disk);
         struct scsi_device *sdev = cd->device;
         void __user *argp = (void __user *)arg;
         int ret;
@@ -517,7 +510,7 @@ static int sr_block_ioctl(struct inode *inode, struct file *file, unsigned cmd,
                 return scsi_ioctl(sdev, cmd, argp);
         }
 
-        ret = cdrom_ioctl(file, &cd->cdi, inode, cmd, arg);
+        ret = cdrom_ioctl(&cd->cdi, bdev, mode, cmd, arg);
         if (ret != -ENOSYS)
                 return ret;
 
@@ -527,7 +520,8 @@ static int sr_block_ioctl(struct inode *inode, struct file *file, unsigned cmd,
          * case fall through to scsi_ioctl, which will return ENDOEV again
          * if it doesn't recognise the ioctl
          */
-        ret = scsi_nonblockable_ioctl(sdev, cmd, argp, NULL);
+        ret = scsi_nonblockable_ioctl(sdev, cmd, argp,
+                                        (mode & FMODE_NDELAY_NOW) != 0);
         if (ret != -ENODEV)
                 return ret;
         return scsi_ioctl(sdev, cmd, argp);
@@ -544,7 +538,7 @@ static struct block_device_operations sr_bdops =
         .owner          = THIS_MODULE,
         .open           = sr_block_open,
         .release        = sr_block_release,
-        .ioctl          = sr_block_ioctl,
+        .locked_ioctl   = sr_block_ioctl,
         .media_changed  = sr_block_media_changed,
         /* 
          * No compat_ioctl for now because sr_block_ioctl never
diff --git a/drivers/scsi/st.c b/drivers/scsi/st.c
index 5c28d08f18f4..c959bdc55f4f 100644
--- a/drivers/scsi/st.c
+++ b/drivers/scsi/st.c
@@ -3263,7 +3263,8 @@ static long st_ioctl(struct file *file, unsigned int cmd_in, unsigned long arg)
          * may try and take the device offline, in which case all further
          * access to the device is prohibited.
          */
-        retval = scsi_nonblockable_ioctl(STp->device, cmd_in, p, file);
+        retval = scsi_nonblockable_ioctl(STp->device, cmd_in, p,
+                                        file->f_flags & O_NDELAY);
         if (!scsi_block_when_processing_errors(STp->device) || retval != -ENODEV)
                 goto out;
         retval = 0;
@@ -3567,8 +3568,8 @@ static long st_ioctl(struct file *file, unsigned int cmd_in, unsigned long arg)
                             !capable(CAP_SYS_RAWIO))
                                 i = -EPERM;
                         else
-                                i = scsi_cmd_ioctl(file, STp->disk->queue,
-                                                   STp->disk, cmd_in, p);
+                                i = scsi_cmd_ioctl(STp->disk->queue, STp->disk,
+                                                   file->f_mode, cmd_in, p);
                         if (i != -ENOTTY)
                                 return i;
                         break;
diff --git a/fs/block_dev.c b/fs/block_dev.c
index d06fe3c3dd3f..88a776fa0ef6 100644
--- a/fs/block_dev.c
+++ b/fs/block_dev.c
@@ -840,13 +840,12 @@ EXPORT_SYMBOL_GPL(bd_release_from_disk);
  * to be used for internal purposes.  If you ever need it - reconsider
  * your API.
  */
-struct block_device *open_by_devnum(dev_t dev, unsigned mode)
+struct block_device *open_by_devnum(dev_t dev, fmode_t mode)
 {
         struct block_device *bdev = bdget(dev);
         int err = -ENOMEM;
-        int flags = mode & FMODE_WRITE ? O_RDWR : O_RDONLY;
         if (bdev)
-                err = blkdev_get(bdev, mode, flags);
+                err = blkdev_get(bdev, mode);
         return err ? ERR_PTR(err) : bdev;
 }
 
@@ -975,9 +974,7 @@ void bd_set_size(struct block_device *bdev, loff_t size)
 }
 EXPORT_SYMBOL(bd_set_size);
 
-static int __blkdev_get(struct block_device *bdev, mode_t mode, unsigned flags,
-                        int for_part);
-static int __blkdev_put(struct block_device *bdev, int for_part);
+static int __blkdev_put(struct block_device *bdev, fmode_t mode, int for_part);
 
 /*
  * bd_mutex locking:
@@ -986,7 +983,7 @@ static int __blkdev_put(struct block_device *bdev, int for_part);
  *    mutex_lock_nested(whole->bd_mutex, 1)
  */
 
-static int do_open(struct block_device *bdev, struct file *file, int for_part)
+static int __blkdev_get(struct block_device *bdev, fmode_t mode, int for_part)
 {
         struct gendisk *disk;
         struct hd_struct *part = NULL;
@@ -994,9 +991,9 @@ static int do_open(struct block_device *bdev, struct file *file, int for_part)
         int partno;
         int perm = 0;
 
-        if (file->f_mode & FMODE_READ)
+        if (mode & FMODE_READ)
                 perm |= MAY_READ;
-        if (file->f_mode & FMODE_WRITE)
+        if (mode & FMODE_WRITE)
                 perm |= MAY_WRITE;
         /*
          * hooks: /n/, see "layering violations".
@@ -1008,7 +1005,6 @@ static int do_open(struct block_device *bdev, struct file *file, int for_part)
         }
 
         ret = -ENXIO;
-        file->f_mapping = bdev->bd_inode->i_mapping;
 
         lock_kernel();
 
@@ -1027,7 +1023,7 @@ static int do_open(struct block_device *bdev, struct file *file, int for_part)
                 if (!partno) {
                         struct backing_dev_info *bdi;
                         if (disk->fops->open) {
-                                ret = disk->fops->open(bdev->bd_inode, file);
+                                ret = disk->fops->open(bdev, mode);
                                 if (ret)
                                         goto out_clear;
                         }
@@ -1047,7 +1043,7 @@ static int do_open(struct block_device *bdev, struct file *file, int for_part)
                         if (!whole)
                                 goto out_clear;
                         BUG_ON(for_part);
-                        ret = __blkdev_get(whole, file->f_mode, file->f_flags, 1);
+                        ret = __blkdev_get(whole, mode, 1);
                         if (ret)
                                 goto out_clear;
                         bdev->bd_contains = whole;
@@ -1068,7 +1064,7 @@ static int do_open(struct block_device *bdev, struct file *file, int for_part)
                 disk = NULL;
                 if (bdev->bd_contains == bdev) {
                         if (bdev->bd_disk->fops->open) {
-                                ret = bdev->bd_disk->fops->open(bdev->bd_inode, file);
+                                ret = bdev->bd_disk->fops->open(bdev, mode);
                                 if (ret)
                                         goto out_unlock_bdev;
                         }
@@ -1088,7 +1084,7 @@ static int do_open(struct block_device *bdev, struct file *file, int for_part)
         bdev->bd_part = NULL;
         bdev->bd_inode->i_data.backing_dev_info = &default_backing_dev_info;
         if (bdev != bdev->bd_contains)
-                __blkdev_put(bdev->bd_contains, 1);
+                __blkdev_put(bdev->bd_contains, mode, 1);
         bdev->bd_contains = NULL;
  out_unlock_bdev:
         mutex_unlock(&bdev->bd_mutex);
@@ -1104,28 +1100,9 @@ static int do_open(struct block_device *bdev, struct file *file, int for_part)
         return ret;
 }
 
-static int __blkdev_get(struct block_device *bdev, mode_t mode, unsigned flags,
-                        int for_part)
+int blkdev_get(struct block_device *bdev, fmode_t mode)
 {
-        /*
-         * This crockload is due to bad choice of ->open() type.
-         * It will go away.
-         * For now, block device ->open() routine must _not_
-         * examine anything in 'inode' argument except ->i_rdev.
-         */
-        struct file fake_file = {};
-        struct dentry fake_dentry = {};
-        fake_file.f_mode = mode;
-        fake_file.f_flags = flags;
-        fake_file.f_path.dentry = &fake_dentry;
-        fake_dentry.d_inode = bdev->bd_inode;
-
-        return do_open(bdev, &fake_file, for_part);
-}
-
-int blkdev_get(struct block_device *bdev, mode_t mode, unsigned flags)
-{
-        return __blkdev_get(bdev, mode, flags, 0);
+        return __blkdev_get(bdev, mode, 0);
 }
 EXPORT_SYMBOL(blkdev_get);
 
@@ -1142,28 +1119,36 @@ static int blkdev_open(struct inode * inode, struct file * filp)
          */
         filp->f_flags |= O_LARGEFILE;
 
+        if (filp->f_flags & O_NDELAY)
+                filp->f_mode |= FMODE_NDELAY;
+        if (filp->f_flags & O_EXCL)
+                filp->f_mode |= FMODE_EXCL;
+        if ((filp->f_flags & O_ACCMODE) == 3)
+                filp->f_mode |= FMODE_WRITE_IOCTL;
+
         bdev = bd_acquire(inode);
         if (bdev == NULL)
                 return -ENOMEM;
 
-        res = do_open(bdev, filp, 0);
+        filp->f_mapping = bdev->bd_inode->i_mapping;
+
+        res = blkdev_get(bdev, filp->f_mode);
         if (res)
                 return res;
 
-        if (!(filp->f_flags & O_EXCL) )
+        if (!(filp->f_mode & FMODE_EXCL))
                 return 0;
 
         if (!(res = bd_claim(bdev, filp)))
                 return 0;
 
-        blkdev_put(bdev);
+        blkdev_put(bdev, filp->f_mode);
         return res;
 }
 
-static int __blkdev_put(struct block_device *bdev, int for_part)
+static int __blkdev_put(struct block_device *bdev, fmode_t mode, int for_part)
 {
         int ret = 0;
-        struct inode *bd_inode = bdev->bd_inode;
         struct gendisk *disk = bdev->bd_disk;
         struct block_device *victim = NULL;
 
@@ -1178,7 +1163,7 @@ static int __blkdev_put(struct block_device *bdev, int for_part)
         }
         if (bdev->bd_contains == bdev) {
                 if (disk->fops->release)
-                        ret = disk->fops->release(bd_inode, NULL);
+                        ret = disk->fops->release(disk, mode);
         }
         if (!bdev->bd_openers) {
                 struct module *owner = disk->fops->owner;
@@ -1197,13 +1182,13 @@ static int __blkdev_put(struct block_device *bdev, int for_part)
         mutex_unlock(&bdev->bd_mutex);
         bdput(bdev);
         if (victim)
-                __blkdev_put(victim, 1);
+                __blkdev_put(victim, mode, 1);
         return ret;
 }
 
-int blkdev_put(struct block_device *bdev)
+int blkdev_put(struct block_device *bdev, fmode_t mode)
 {
-        return __blkdev_put(bdev, 0);
+        return __blkdev_put(bdev, mode, 0);
 }
 EXPORT_SYMBOL(blkdev_put);
 
@@ -1212,12 +1197,16 @@ static int blkdev_close(struct inode * inode, struct file * filp)
         struct block_device *bdev = I_BDEV(filp->f_mapping->host);
         if (bdev->bd_holder == filp)
                 bd_release(bdev);
-        return blkdev_put(bdev);
+        return blkdev_put(bdev, filp->f_mode);
 }
 
 static long block_ioctl(struct file *file, unsigned cmd, unsigned long arg)
 {
-        return blkdev_ioctl(file->f_mapping->host, file, cmd, arg);
+        struct block_device *bdev = I_BDEV(file->f_mapping->host);
+        fmode_t mode = file->f_mode;
+        if (file->f_flags & O_NDELAY)
+                mode |= FMODE_NDELAY_NOW;
+        return blkdev_ioctl(bdev, mode, cmd, arg);
 }
 
 static const struct address_space_operations def_blk_aops = {
@@ -1253,7 +1242,7 @@ int ioctl_by_bdev(struct block_device *bdev, unsigned cmd, unsigned long arg)
         int res;
         mm_segment_t old_fs = get_fs();
         set_fs(KERNEL_DS);
-        res = blkdev_ioctl(bdev->bd_inode, NULL, cmd, arg);
+        res = blkdev_ioctl(bdev, 0, cmd, arg);
         set_fs(old_fs);
         return res;
 }
@@ -1303,32 +1292,29 @@ fail:
 EXPORT_SYMBOL(lookup_bdev);
 
 /**
- * open_bdev_excl  -  open a block device by name and set it up for use
+ * open_bdev_exclusive  -  open a block device by name and set it up for use
  *
  * @path:       special file representing the block device
- * @flags:      %MS_RDONLY for opening read-only
+ * @mode:       FMODE_... combination to pass be used
  * @holder:     owner for exclusion
  *
  * Open the blockdevice described by the special file at @path, claim it
  * for the @holder.
  */
-struct block_device *open_bdev_excl(const char *path, int flags, void *holder)
+struct block_device *open_bdev_exclusive(const char *path, fmode_t mode, void *holder)
 {
         struct block_device *bdev;
-        mode_t mode = FMODE_READ;
         int error = 0;
 
         bdev = lookup_bdev(path);
         if (IS_ERR(bdev))
                 return bdev;
 
-        if (!(flags & MS_RDONLY))
-                mode |= FMODE_WRITE;
-        error = blkdev_get(bdev, mode, 0);
+        error = blkdev_get(bdev, mode);
         if (error)
                 return ERR_PTR(error);
         error = -EACCES;
-        if (!(flags & MS_RDONLY) && bdev_read_only(bdev))
+        if ((mode & FMODE_WRITE) && bdev_read_only(bdev))
                 goto blkdev_put;
         error = bd_claim(bdev, holder);
         if (error)
@@ -1337,26 +1323,27 @@ struct block_device *open_bdev_excl(const char *path, int flags, void *holder)
         return bdev;
         
 blkdev_put:
-        blkdev_put(bdev);
+        blkdev_put(bdev, mode);
         return ERR_PTR(error);
 }
 
-EXPORT_SYMBOL(open_bdev_excl);
+EXPORT_SYMBOL(open_bdev_exclusive);
 
 /**
- * close_bdev_excl  -  release a blockdevice openen by open_bdev_excl()
+ * close_bdev_exclusive  -  close a blockdevice opened by open_bdev_exclusive()
  *
  * @bdev:       blockdevice to close
+ * @mode:       mode, must match that used to open.
  *
- * This is the counterpart to open_bdev_excl().
+ * This is the counterpart to open_bdev_exclusive().
  */
-void close_bdev_excl(struct block_device *bdev)
+void close_bdev_exclusive(struct block_device *bdev, fmode_t mode)
 {
         bd_release(bdev);
-        blkdev_put(bdev);
+        blkdev_put(bdev, mode);
 }
 
-EXPORT_SYMBOL(close_bdev_excl);
+EXPORT_SYMBOL(close_bdev_exclusive);
 
 int __invalidate_device(struct block_device *bdev)
 {
diff --git a/fs/ext2/xip.c b/fs/ext2/xip.c
index 4fb94c20041b..b72b85884223 100644
--- a/fs/ext2/xip.c
+++ b/fs/ext2/xip.c
@@ -11,6 +11,7 @@
 #include <linux/buffer_head.h>
 #include <linux/ext2_fs_sb.h>
 #include <linux/ext2_fs.h>
+#include <linux/blkdev.h>
 #include "ext2.h"
 #include "xip.h"
 
diff --git a/fs/ext3/super.c b/fs/ext3/super.c
index 34b6fca765d7..8147dd44cede 100644
--- a/fs/ext3/super.c
+++ b/fs/ext3/super.c
@@ -347,7 +347,7 @@ fail:
 static int ext3_blkdev_put(struct block_device *bdev)
 {
         bd_release(bdev);
-        return blkdev_put(bdev);
+        return blkdev_put(bdev, FMODE_READ|FMODE_WRITE);
 }
 
 static int ext3_blkdev_remove(struct ext3_sb_info *sbi)
@@ -2067,7 +2067,7 @@ static journal_t *ext3_get_dev_journal(struct super_block *sb,
         if (bd_claim(bdev, sb)) {
                 printk(KERN_ERR
                         "EXT3: failed to claim external journal device.\n");
-                blkdev_put(bdev);
+                blkdev_put(bdev, FMODE_READ|FMODE_WRITE);
                 return NULL;
         }
 
diff --git a/fs/ext4/super.c b/fs/ext4/super.c
index ae35f176b697..bdddea14e782 100644
--- a/fs/ext4/super.c
+++ b/fs/ext4/super.c
@@ -399,7 +399,7 @@ fail:
 static int ext4_blkdev_put(struct block_device *bdev)
 {
         bd_release(bdev);
-        return blkdev_put(bdev);
+        return blkdev_put(bdev, FMODE_READ|FMODE_WRITE);
 }
 
 static int ext4_blkdev_remove(struct ext4_sb_info *sbi)
@@ -2553,7 +2553,7 @@ static journal_t *ext4_get_dev_journal(struct super_block *sb,
         if (bd_claim(bdev, sb)) {
                 printk(KERN_ERR
                         "EXT4: failed to claim external journal device.\n");
-                blkdev_put(bdev);
+                blkdev_put(bdev, FMODE_READ|FMODE_WRITE);
                 return NULL;
         }
 
diff --git a/fs/fifo.c b/fs/fifo.c
index 987bf9411495..f8f97b8b6d44 100644
--- a/fs/fifo.c
+++ b/fs/fifo.c
@@ -51,7 +51,7 @@ static int fifo_open(struct inode *inode, struct file *filp)
         filp->f_mode &= (FMODE_READ | FMODE_WRITE);
 
         switch (filp->f_mode) {
-        case 1:
+        case FMODE_READ:
         /*
          *  O_RDONLY
          *  POSIX.1 says that O_NONBLOCK means return with the FIFO
@@ -76,7 +76,7 @@ static int fifo_open(struct inode *inode, struct file *filp)
                 }
                 break;
         
-        case 2:
+        case FMODE_WRITE:
         /*
          *  O_WRONLY
          *  POSIX.1 says that O_NONBLOCK means return -1 with
@@ -98,7 +98,7 @@ static int fifo_open(struct inode *inode, struct file *filp)
                 }
                 break;
         
-        case 3:
+        case FMODE_READ | FMODE_WRITE:
         /*
          *  O_RDWR
          *  POSIX.1 leaves this case "undefined" when O_NONBLOCK is set.
diff --git a/fs/file_table.c b/fs/file_table.c
index f45a4493f9e7..efc06faede6c 100644
--- a/fs/file_table.c
+++ b/fs/file_table.c
@@ -161,7 +161,7 @@ EXPORT_SYMBOL(get_empty_filp);
  * code should be moved into this function.
  */
 struct file *alloc_file(struct vfsmount *mnt, struct dentry *dentry,
-                mode_t mode, const struct file_operations *fop)
+                fmode_t mode, const struct file_operations *fop)
 {
         struct file *file;
         struct path;
@@ -193,7 +193,7 @@ EXPORT_SYMBOL(alloc_file);
  * of this should be moving to alloc_file().
  */
 int init_file(struct file *file, struct vfsmount *mnt, struct dentry *dentry,
-           mode_t mode, const struct file_operations *fop)
+           fmode_t mode, const struct file_operations *fop)
 {
         int error = 0;
         file->f_path.dentry = dentry;
diff --git a/fs/hostfs/hostfs_kern.c b/fs/hostfs/hostfs_kern.c
index d6ecabf4d231..7f34f4385de0 100644
--- a/fs/hostfs/hostfs_kern.c
+++ b/fs/hostfs/hostfs_kern.c
@@ -20,7 +20,7 @@
 struct hostfs_inode_info {
         char *host_filename;
         int fd;
-        int mode;
+        fmode_t mode;
         struct inode vfs_inode;
 };
 
@@ -373,7 +373,8 @@ int hostfs_readdir(struct file *file, void *ent, filldir_t filldir)
 int hostfs_file_open(struct inode *ino, struct file *file)
 {
         char *name;
-        int mode = 0, r = 0, w = 0, fd;
+        fmode_t mode = 0;
+        int r = 0, w = 0, fd;
 
         mode = file->f_mode & (FMODE_READ | FMODE_WRITE);
         if ((mode & HOSTFS_I(ino)->mode) == mode)
diff --git a/fs/jfs/jfs_logmgr.c b/fs/jfs/jfs_logmgr.c
index cd2ec2988b59..335c4de6552d 100644
--- a/fs/jfs/jfs_logmgr.c
+++ b/fs/jfs/jfs_logmgr.c
@@ -1168,7 +1168,7 @@ journal_found:
         bd_release(bdev);
 
       close:            /* close external log device */
-        blkdev_put(bdev);
+        blkdev_put(bdev, FMODE_READ|FMODE_WRITE);
 
       free:             /* free log descriptor */
         mutex_unlock(&jfs_log_mutex);
@@ -1514,7 +1514,7 @@ int lmLogClose(struct super_block *sb)
         rc = lmLogShutdown(log);
 
         bd_release(bdev);
-        blkdev_put(bdev);
+        blkdev_put(bdev, FMODE_READ|FMODE_WRITE);
 
         kfree(log);
 
diff --git a/fs/locks.c b/fs/locks.c
index 5eb259e3cd38..20457486d6b2 100644
--- a/fs/locks.c
+++ b/fs/locks.c
@@ -1580,7 +1580,8 @@ asmlinkage long sys_flock(unsigned int fd, unsigned int cmd)
         cmd &= ~LOCK_NB;
         unlock = (cmd == LOCK_UN);
 
-        if (!unlock && !(cmd & LOCK_MAND) && !(filp->f_mode & 3))
+        if (!unlock && !(cmd & LOCK_MAND) &&
+            !(filp->f_mode & (FMODE_READ|FMODE_WRITE)))
                 goto out_putf;
 
         error = flock_make_lock(filp, &lock, cmd);
diff --git a/fs/ocfs2/cluster/heartbeat.c b/fs/ocfs2/cluster/heartbeat.c
index 7dce1612553e..6ebaa58e2c03 100644
--- a/fs/ocfs2/cluster/heartbeat.c
+++ b/fs/ocfs2/cluster/heartbeat.c
@@ -976,7 +976,7 @@ static void o2hb_region_release(struct config_item *item)
         }
 
         if (reg->hr_bdev)
-                blkdev_put(reg->hr_bdev);
+                blkdev_put(reg->hr_bdev, FMODE_READ|FMODE_WRITE);
 
         if (reg->hr_slots)
                 kfree(reg->hr_slots);
@@ -1268,7 +1268,7 @@ static ssize_t o2hb_region_dev_write(struct o2hb_region *reg,
                 goto out;
 
         reg->hr_bdev = I_BDEV(filp->f_mapping->host);
-        ret = blkdev_get(reg->hr_bdev, FMODE_WRITE | FMODE_READ, 0);
+        ret = blkdev_get(reg->hr_bdev, FMODE_WRITE | FMODE_READ);
         if (ret) {
                 reg->hr_bdev = NULL;
                 goto out;
@@ -1358,7 +1358,7 @@ out:
                 iput(inode);
         if (ret < 0) {
                 if (reg->hr_bdev) {
-                        blkdev_put(reg->hr_bdev);
+                        blkdev_put(reg->hr_bdev, FMODE_READ|FMODE_WRITE);
                         reg->hr_bdev = NULL;
                 }
         }
diff --git a/fs/open.c b/fs/open.c
index 5596049863bf..83cdb9dee0c1 100644
--- a/fs/open.c
+++ b/fs/open.c
@@ -798,7 +798,7 @@ static struct file *__dentry_open(struct dentry *dentry, struct vfsmount *mnt,
         int error;
 
         f->f_flags = flags;
-        f->f_mode = ((flags+1) & O_ACCMODE) | FMODE_LSEEK |
+        f->f_mode = (__force fmode_t)((flags+1) & O_ACCMODE) | FMODE_LSEEK |
                                 FMODE_PREAD | FMODE_PWRITE;
         inode = dentry->d_inode;
         if (f->f_mode & FMODE_WRITE) {
diff --git a/fs/partitions/check.c b/fs/partitions/check.c
index cfb0c80690aa..633f7a0ebb2c 100644
--- a/fs/partitions/check.c
+++ b/fs/partitions/check.c
@@ -485,10 +485,10 @@ void register_disk(struct gendisk *disk)
                 goto exit;
 
         bdev->bd_invalidated = 1;
-        err = blkdev_get(bdev, FMODE_READ, 0);
+        err = blkdev_get(bdev, FMODE_READ);
         if (err < 0)
                 goto exit;
-        blkdev_put(bdev);
+        blkdev_put(bdev, FMODE_READ);
 
 exit:
         /* announce disk after possible partitions are created */
diff --git a/fs/proc/base.c b/fs/proc/base.c
index b5918ae8ca79..486cf3fe7139 100644
--- a/fs/proc/base.c
+++ b/fs/proc/base.c
@@ -1712,9 +1712,9 @@ static struct dentry *proc_fd_instantiate(struct inode *dir,
         file = fcheck_files(files, fd);
         if (!file)
                 goto out_unlock;
-        if (file->f_mode & 1)
+        if (file->f_mode & FMODE_READ)
                 inode->i_mode |= S_IRUSR | S_IXUSR;
-        if (file->f_mode & 2)
+        if (file->f_mode & FMODE_WRITE)
                 inode->i_mode |= S_IWUSR | S_IXUSR;
         spin_unlock(&files->file_lock);
         put_files_struct(files);
diff --git a/fs/reiserfs/journal.c b/fs/reiserfs/journal.c
index c21df71943a6..9643c3bbeb3b 100644
--- a/fs/reiserfs/journal.c
+++ b/fs/reiserfs/journal.c
@@ -2575,7 +2575,7 @@ static int release_journal_dev(struct super_block *super,
         if (journal->j_dev_bd != NULL) {
                 if (journal->j_dev_bd->bd_dev != super->s_dev)
                         bd_release(journal->j_dev_bd);
-                result = blkdev_put(journal->j_dev_bd);
+                result = blkdev_put(journal->j_dev_bd, journal->j_dev_mode);
                 journal->j_dev_bd = NULL;
         }
 
@@ -2593,7 +2593,7 @@ static int journal_init_dev(struct super_block *super,
 {
         int result;
         dev_t jdev;
-        int blkdev_mode = FMODE_READ | FMODE_WRITE;
+        fmode_t blkdev_mode = FMODE_READ | FMODE_WRITE;
         char b[BDEVNAME_SIZE];
 
         result = 0;
@@ -2608,6 +2608,7 @@ static int journal_init_dev(struct super_block *super,
         /* there is no "jdev" option and journal is on separate device */
         if ((!jdev_name || !jdev_name[0])) {
                 journal->j_dev_bd = open_by_devnum(jdev, blkdev_mode);
+                journal->j_dev_mode = blkdev_mode;
                 if (IS_ERR(journal->j_dev_bd)) {
                         result = PTR_ERR(journal->j_dev_bd);
                         journal->j_dev_bd = NULL;
@@ -2618,7 +2619,7 @@ static int journal_init_dev(struct super_block *super,
                 } else if (jdev != super->s_dev) {
                         result = bd_claim(journal->j_dev_bd, journal);
                         if (result) {
-                                blkdev_put(journal->j_dev_bd);
+                                blkdev_put(journal->j_dev_bd, blkdev_mode);
                                 return result;
                         }
 
@@ -2628,7 +2629,9 @@ static int journal_init_dev(struct super_block *super,
                 return 0;
         }
 
-        journal->j_dev_bd = open_bdev_excl(jdev_name, 0, journal);
+        journal->j_dev_mode = blkdev_mode;
+        journal->j_dev_bd = open_bdev_exclusive(jdev_name,
+                                                blkdev_mode, journal);
         if (IS_ERR(journal->j_dev_bd)) {
                 result = PTR_ERR(journal->j_dev_bd);
                 journal->j_dev_bd = NULL;
diff --git a/fs/super.c b/fs/super.c
index f31ef824d069..400a7608f15e 100644
--- a/fs/super.c
+++ b/fs/super.c
@@ -755,9 +755,13 @@ int get_sb_bdev(struct file_system_type *fs_type,
 {
         struct block_device *bdev;
         struct super_block *s;
+        fmode_t mode = FMODE_READ;
         int error = 0;
 
-        bdev = open_bdev_excl(dev_name, flags, fs_type);
+        if (!(flags & MS_RDONLY))
+                mode |= FMODE_WRITE;
+
+        bdev = open_bdev_exclusive(dev_name, mode, fs_type);
         if (IS_ERR(bdev))
                 return PTR_ERR(bdev);
 
@@ -780,11 +784,12 @@ int get_sb_bdev(struct file_system_type *fs_type,
                         goto error_bdev;
                 }
 
-                close_bdev_excl(bdev);
+                close_bdev_exclusive(bdev, mode);
         } else {
                 char b[BDEVNAME_SIZE];
 
                 s->s_flags = flags;
+                s->s_mode = mode;
                 strlcpy(s->s_id, bdevname(bdev, b), sizeof(s->s_id));
                 sb_set_blocksize(s, block_size(bdev));
                 error = fill_super(s, data, flags & MS_SILENT ? 1 : 0);
@@ -802,7 +807,7 @@ int get_sb_bdev(struct file_system_type *fs_type,
 error_s:
         error = PTR_ERR(s);
 error_bdev:
-        close_bdev_excl(bdev);
+        close_bdev_exclusive(bdev, mode);
 error:
         return error;
 }
@@ -812,10 +817,11 @@ EXPORT_SYMBOL(get_sb_bdev);
 void kill_block_super(struct super_block *sb)
 {
         struct block_device *bdev = sb->s_bdev;
+        fmode_t mode = sb->s_mode;
 
         generic_shutdown_super(sb);
         sync_blockdev(bdev);
-        close_bdev_excl(bdev);
+        close_bdev_exclusive(bdev, mode);
 }
 
 EXPORT_SYMBOL(kill_block_super);
diff --git a/fs/xfs/linux-2.6/xfs_super.c b/fs/xfs/linux-2.6/xfs_super.c
index e39013619b26..37ebe36056eb 100644
--- a/fs/xfs/linux-2.6/xfs_super.c
+++ b/fs/xfs/linux-2.6/xfs_super.c
@@ -589,7 +589,7 @@ xfs_blkdev_get(
 {
         int                     error = 0;
 
-        *bdevp = open_bdev_excl(name, 0, mp);
+        *bdevp = open_bdev_exclusive(name, FMODE_READ|FMODE_WRITE, mp);
         if (IS_ERR(*bdevp)) {
                 error = PTR_ERR(*bdevp);
                 printk("XFS: Invalid device [%s], error=%d\n", name, error);
@@ -603,7 +603,7 @@ xfs_blkdev_put(
         struct block_device     *bdev)
 {
         if (bdev)
-                close_bdev_excl(bdev);
+                close_bdev_exclusive(bdev, FMODE_READ|FMODE_WRITE);
 }
 
 /*
diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h
index b4fe68fe3a57..a135256b272c 100644
--- a/include/linux/blkdev.h
+++ b/include/linux/blkdev.h
@@ -717,10 +717,10 @@ extern void blk_plug_device(struct request_queue *);
 extern void blk_plug_device_unlocked(struct request_queue *);
 extern int blk_remove_plug(struct request_queue *);
 extern void blk_recount_segments(struct request_queue *, struct bio *);
-extern int scsi_cmd_ioctl(struct file *, struct request_queue *,
-                          struct gendisk *, unsigned int, void __user *);
-extern int sg_scsi_ioctl(struct file *, struct request_queue *,
-                struct gendisk *, struct scsi_ioctl_command __user *);
+extern int scsi_cmd_ioctl(struct request_queue *, struct gendisk *, fmode_t,
+                          unsigned int, void __user *);
+extern int sg_scsi_ioctl(struct request_queue *, struct gendisk *, fmode_t,
+                         struct scsi_ioctl_command __user *);
 
 /*
  * Temporary export, until SCSI gets fixed up.
@@ -910,7 +910,8 @@ static inline int sb_issue_discard(struct super_block *sb,
 * command filter functions
 */
 extern int blk_verify_command(struct blk_cmd_filter *filter,
-                              unsigned char *cmd, int has_write_perm);
+                              unsigned char *cmd, fmode_t has_write_perm);
+extern void blk_unregister_filter(struct gendisk *disk);
 extern void blk_set_cmd_filter_defaults(struct blk_cmd_filter *filter);
 
 #define MAX_PHYS_SEGMENTS 128
@@ -1056,6 +1057,22 @@ static inline int blk_integrity_rq(struct request *rq)
 
 #endif /* CONFIG_BLK_DEV_INTEGRITY */
 
+struct block_device_operations {
+        int (*open) (struct block_device *, fmode_t);
+        int (*release) (struct gendisk *, fmode_t);
+        int (*locked_ioctl) (struct block_device *, fmode_t, unsigned, unsigned long);
+        int (*ioctl) (struct block_device *, fmode_t, unsigned, unsigned long);
+        int (*compat_ioctl) (struct block_device *, fmode_t, unsigned, unsigned long);
+        int (*direct_access) (struct block_device *, sector_t,
+                                                void **, unsigned long *);
+        int (*media_changed) (struct gendisk *);
+        int (*revalidate_disk) (struct gendisk *);
+        int (*getgeo)(struct block_device *, struct hd_geometry *);
+        struct module *owner;
+};
+
+extern int __blkdev_driver_ioctl(struct block_device *, fmode_t, unsigned int,
+                                 unsigned long);
 #else /* CONFIG_BLOCK */
 /*
  * stubs for when the block layer is configured out
diff --git a/include/linux/cdrom.h b/include/linux/cdrom.h
index 5db265ea60f6..0b49e08d3cb0 100644
--- a/include/linux/cdrom.h
+++ b/include/linux/cdrom.h
@@ -987,11 +987,11 @@ struct cdrom_device_ops {
 };
 
 /* the general block_device operations structure: */
-extern int cdrom_open(struct cdrom_device_info *cdi, struct inode *ip,
-                        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);
+extern int cdrom_open(struct cdrom_device_info *cdi, struct block_device *bdev,
+                        fmode_t mode);
+extern void cdrom_release(struct cdrom_device_info *cdi, fmode_t mode);
+extern int cdrom_ioctl(struct cdrom_device_info *cdi, struct block_device *bdev,
+                       fmode_t mode, unsigned int cmd, unsigned long arg);
 extern int cdrom_media_changed(struct cdrom_device_info *);
 
 extern int register_cdrom(struct cdrom_device_info *cdi);
diff --git a/include/linux/device-mapper.h b/include/linux/device-mapper.h
index dfb30db475ed..c17fd334e574 100644
--- a/include/linux/device-mapper.h
+++ b/include/linux/device-mapper.h
@@ -69,8 +69,7 @@ typedef int (*dm_status_fn) (struct dm_target *ti, status_type_t status_type,
 
 typedef int (*dm_message_fn) (struct dm_target *ti, unsigned argc, char **argv);
 
-typedef int (*dm_ioctl_fn) (struct dm_target *ti, struct inode *inode,
-                            struct file *filp, unsigned int cmd,
+typedef int (*dm_ioctl_fn) (struct dm_target *ti, unsigned int cmd,
                             unsigned long arg);
 
 typedef int (*dm_merge_fn) (struct dm_target *ti, struct bvec_merge_data *bvm,
@@ -85,7 +84,7 @@ void dm_set_device_limits(struct dm_target *ti, struct block_device *bdev);
 
 struct dm_dev {
         struct block_device *bdev;
-        int mode;
+        fmode_t mode;
         char name[16];
 };
 
@@ -95,7 +94,7 @@ struct dm_dev {
  * FIXME: too many arguments.
  */
 int dm_get_device(struct dm_target *ti, const char *path, sector_t start,
-                  sector_t len, int mode, struct dm_dev **result);
+                  sector_t len, fmode_t mode, struct dm_dev **result);
 void dm_put_device(struct dm_target *ti, struct dm_dev *d);
 
 /*
@@ -223,7 +222,7 @@ int dm_set_geometry(struct mapped_device *md, struct hd_geometry *geo);
 /*
  * First create an empty table.
  */
-int dm_table_create(struct dm_table **result, int mode,
+int dm_table_create(struct dm_table **result, fmode_t mode,
                     unsigned num_targets, struct mapped_device *md);
 
 /*
@@ -254,7 +253,7 @@ void dm_table_put(struct dm_table *t);
  */
 sector_t dm_table_get_size(struct dm_table *t);
 unsigned int dm_table_get_num_targets(struct dm_table *t);
-int dm_table_get_mode(struct dm_table *t);
+fmode_t dm_table_get_mode(struct dm_table *t);
 struct mapped_device *dm_table_get_md(struct dm_table *t);
 
 /*
diff --git a/include/linux/file.h b/include/linux/file.h
index a20259e248a5..335a0a5c316e 100644
--- a/include/linux/file.h
+++ b/include/linux/file.h
@@ -19,10 +19,10 @@ struct file_operations;
 struct vfsmount;
 struct dentry;
 extern int init_file(struct file *, struct vfsmount *mnt,
-                struct dentry *dentry, mode_t mode,
+                struct dentry *dentry, fmode_t mode,
                 const struct file_operations *fop);
 extern struct file *alloc_file(struct vfsmount *, struct dentry *dentry,
-                mode_t mode, const struct file_operations *fop);
+                fmode_t mode, const struct file_operations *fop);
 
 static inline void fput_light(struct file *file, int fput_needed)
 {
diff --git a/include/linux/fs.h b/include/linux/fs.h
index 7d719c1a18e3..43659ae52e4d 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -63,18 +63,23 @@ extern int dir_notify_enable;
 #define MAY_ACCESS 16
 #define MAY_OPEN 32
 
-#define FMODE_READ 1
-#define FMODE_WRITE 2
+#define FMODE_READ ((__force fmode_t)1)
+#define FMODE_WRITE ((__force fmode_t)2)
 
 /* Internal kernel extensions */
-#define FMODE_LSEEK     4
-#define FMODE_PREAD     8
+#define FMODE_LSEEK     ((__force fmode_t)4)
+#define FMODE_PREAD     ((__force fmode_t)8)
 #define FMODE_PWRITE    FMODE_PREAD     /* These go hand in hand */
 
 /* File is being opened for execution. Primary users of this flag are
    distributed filesystems that can use it to achieve correct ETXTBUSY
    behavior for cross-node execution/opening_for_writing of files */
-#define FMODE_EXEC      16
+#define FMODE_EXEC      ((__force fmode_t)16)
+
+#define FMODE_NDELAY    ((__force fmode_t)32)
+#define FMODE_EXCL      ((__force fmode_t)64)
+#define FMODE_WRITE_IOCTL       ((__force fmode_t)128)
+#define FMODE_NDELAY_NOW        ((__force fmode_t)256)
 
 #define RW_MASK         1
 #define RWA_MASK        2
@@ -825,7 +830,7 @@ struct file {
         const struct file_operations    *f_op;
         atomic_long_t           f_count;
         unsigned int            f_flags;
-        mode_t                  f_mode;
+        fmode_t                 f_mode;
         loff_t                  f_pos;
         struct fown_struct      f_owner;
         unsigned int            f_uid, f_gid;
@@ -1152,6 +1157,7 @@ struct super_block {
         char s_id[32];                          /* Informational name */
 
         void                    *s_fs_info;     /* Filesystem private info */
+        fmode_t                 s_mode;
 
         /*
          * The next field is for VFS *only*. No filesystems have any business
@@ -1266,20 +1272,7 @@ int generic_osync_inode(struct inode *, struct address_space *, int);
  * to have different dirent layouts depending on the binary type.
  */
 typedef int (*filldir_t)(void *, const char *, int, loff_t, u64, unsigned);
-
-struct block_device_operations {
-        int (*open) (struct inode *, struct file *);
-        int (*release) (struct inode *, struct file *);
-        int (*ioctl) (struct inode *, struct file *, unsigned, unsigned long);
-        long (*unlocked_ioctl) (struct file *, unsigned, unsigned long);
-        long (*compat_ioctl) (struct file *, unsigned, unsigned long);
-        int (*direct_access) (struct block_device *, sector_t,
-                                                void **, unsigned long *);
-        int (*media_changed) (struct gendisk *);
-        int (*revalidate_disk) (struct gendisk *);
-        int (*getgeo)(struct block_device *, struct hd_geometry *);
-        struct module *owner;
-};
+struct block_device_operations;
 
 /* These macros are for out of kernel modules to test that
  * the kernel supports the unlocked_ioctl and compat_ioctl
@@ -1713,7 +1706,7 @@ extern struct block_device *bdget(dev_t);
 extern void bd_set_size(struct block_device *, loff_t size);
 extern void bd_forget(struct inode *inode);
 extern void bdput(struct block_device *);
-extern struct block_device *open_by_devnum(dev_t, unsigned);
+extern struct block_device *open_by_devnum(dev_t, fmode_t);
 #else
 static inline void bd_forget(struct inode *inode) {}
 #endif
@@ -1723,13 +1716,10 @@ extern const struct file_operations bad_sock_fops;
 extern const struct file_operations def_fifo_fops;
 #ifdef CONFIG_BLOCK
 extern int ioctl_by_bdev(struct block_device *, unsigned, unsigned long);
-extern int blkdev_ioctl(struct inode *, struct file *, unsigned, unsigned long);
-extern int blkdev_driver_ioctl(struct inode *inode, struct file *file,
-                               struct gendisk *disk, unsigned cmd,
-                               unsigned long arg);
+extern int blkdev_ioctl(struct block_device *, fmode_t, unsigned, unsigned long);
 extern long compat_blkdev_ioctl(struct file *, unsigned, unsigned long);
-extern int blkdev_get(struct block_device *, mode_t, unsigned);
-extern int blkdev_put(struct block_device *);
+extern int blkdev_get(struct block_device *, fmode_t);
+extern int blkdev_put(struct block_device *, fmode_t);
 extern int bd_claim(struct block_device *, void *);
 extern void bd_release(struct block_device *);
 #ifdef CONFIG_SYSFS
@@ -1760,9 +1750,10 @@ extern void chrdev_show(struct seq_file *,off_t);
 extern const char *__bdevname(dev_t, char *buffer);
 extern const char *bdevname(struct block_device *bdev, char *buffer);
 extern struct block_device *lookup_bdev(const char *);
-extern struct block_device *open_bdev_excl(const char *, int, void *);
-extern void close_bdev_excl(struct block_device *);
+extern struct block_device *open_bdev_exclusive(const char *, fmode_t, void *);
+extern void close_bdev_exclusive(struct block_device *, fmode_t);
 extern void blkdev_show(struct seq_file *,off_t);
+
 #else
 #define BLKDEV_MAJOR_HASH_SIZE  0
 #endif
diff --git a/include/linux/fsnotify.h b/include/linux/fsnotify.h
index a89513188ce7..00fbd5b245c9 100644
--- a/include/linux/fsnotify.h
+++ b/include/linux/fsnotify.h
@@ -188,7 +188,7 @@ static inline void fsnotify_close(struct file *file)
         struct dentry *dentry = file->f_path.dentry;
         struct inode *inode = dentry->d_inode;
         const char *name = dentry->d_name.name;
-        mode_t mode = file->f_mode;
+        fmode_t mode = file->f_mode;
         u32 mask = (mode & FMODE_WRITE) ? IN_CLOSE_WRITE : IN_CLOSE_NOWRITE;
 
         if (S_ISDIR(inode->i_mode))
diff --git a/include/linux/ide.h b/include/linux/ide.h
index 89e53cfbc787..54525be4b5f8 100644
--- a/include/linux/ide.h
+++ b/include/linux/ide.h
@@ -474,8 +474,8 @@ struct ide_disk_ops {
         ide_startstop_t (*do_request)(struct ide_drive_s *, struct request *,
                                       sector_t);
         int             (*end_request)(struct ide_drive_s *, int, int);
-        int             (*ioctl)(struct ide_drive_s *, struct inode *,
-                                 struct file *, unsigned int, unsigned long);
+        int             (*ioctl)(struct ide_drive_s *, struct block_device *,
+                                 fmode_t, unsigned int, unsigned long);
 };
 
 /* ATAPI device flags */
@@ -1158,8 +1158,7 @@ struct ide_ioctl_devset {
 int ide_setting_ioctl(ide_drive_t *, struct block_device *, unsigned int,
                       unsigned long, const struct ide_ioctl_devset *);
 
-int generic_ide_ioctl(ide_drive_t *, struct file *, struct block_device *,
-                      unsigned, unsigned long);
+int generic_ide_ioctl(ide_drive_t *, struct block_device *, unsigned, unsigned long);
 
 extern int ide_vlb_clk;
 extern int ide_pci_clk;
diff --git a/include/linux/reiserfs_fs_sb.h b/include/linux/reiserfs_fs_sb.h
index 315517e8bfa1..bda6b562a1e0 100644
--- a/include/linux/reiserfs_fs_sb.h
+++ b/include/linux/reiserfs_fs_sb.h
@@ -178,6 +178,7 @@ struct reiserfs_journal {
         struct reiserfs_journal_cnode *j_first; /*  oldest journal block.  start here for traverse */
 
         struct block_device *j_dev_bd;
+        fmode_t j_dev_mode;
         int j_1st_reserved_block;       /* first block on s_dev of reserved area journal */
 
         unsigned long j_state;
diff --git a/include/linux/types.h b/include/linux/types.h
index f24f7beb47df..1d98330b1f2c 100644
--- a/include/linux/types.h
+++ b/include/linux/types.h
@@ -190,6 +190,7 @@ typedef __u32 __bitwise __wsum;
 
 #ifdef __KERNEL__
 typedef unsigned __bitwise__ gfp_t;
+typedef unsigned __bitwise__ fmode_t;
 
 #ifdef CONFIG_PHYS_ADDR_T_64BIT
 typedef u64 phys_addr_t;
diff --git a/include/scsi/scsi_ioctl.h b/include/scsi/scsi_ioctl.h
index edb9525386da..b9006848b813 100644
--- a/include/scsi/scsi_ioctl.h
+++ b/include/scsi/scsi_ioctl.h
@@ -42,7 +42,7 @@ typedef struct scsi_fctargaddress {
 
 extern int scsi_ioctl(struct scsi_device *, int, void __user *);
 extern int scsi_nonblockable_ioctl(struct scsi_device *sdev, int cmd,
-                                   void __user *arg, struct file *filp);
+                                   void __user *arg, int ndelay);
 
 #endif /* __KERNEL__ */
 #endif /* _SCSI_IOCTL_H */
diff --git a/ipc/shm.c b/ipc/shm.c
index 0add3fa5f547..867e5d6a55c2 100644
--- a/ipc/shm.c
+++ b/ipc/shm.c
@@ -817,7 +817,7 @@ long do_shmat(int shmid, char __user *shmaddr, int shmflg, ulong *raddr)
         struct ipc_namespace *ns;
         struct shm_file_data *sfd;
         struct path path;
-        mode_t f_mode;
+        fmode_t f_mode;
 
         err = -EINVAL;
         if (shmid < 0)
diff --git a/kernel/power/disk.c b/kernel/power/disk.c
index 331f9836383f..c9d74083746f 100644
--- a/kernel/power/disk.c
+++ b/kernel/power/disk.c
@@ -651,7 +651,7 @@ static int software_resume(void)
         pr_debug("PM: Preparing processes for restore.\n");
         error = prepare_processes();
         if (error) {
-                swsusp_close();
+                swsusp_close(FMODE_READ);
                 goto Done;
         }
 
diff --git a/kernel/power/power.h b/kernel/power/power.h
index acc0c101dbd5..46b5ec7a3afb 100644
--- a/kernel/power/power.h
+++ b/kernel/power/power.h
@@ -153,7 +153,7 @@ extern int swsusp_shrink_memory(void);
 extern void swsusp_free(void);
 extern int swsusp_read(unsigned int *flags_p);
 extern int swsusp_write(unsigned int flags);
-extern void swsusp_close(void);
+extern void swsusp_close(fmode_t);
 
 struct timeval;
 /* kernel/power/swsusp.c */
diff --git a/kernel/power/swap.c b/kernel/power/swap.c
index 80ccac849e46..b7713b53d07a 100644
--- a/kernel/power/swap.c
+++ b/kernel/power/swap.c
@@ -172,13 +172,13 @@ static int swsusp_swap_check(void) /* This is called before saving image */
                 return res;
 
         root_swap = res;
-        res = blkdev_get(resume_bdev, FMODE_WRITE, O_RDWR);
+        res = blkdev_get(resume_bdev, FMODE_WRITE);
         if (res)
                 return res;
 
         res = set_blocksize(resume_bdev, PAGE_SIZE);
         if (res < 0)
-                blkdev_put(resume_bdev);
+                blkdev_put(resume_bdev, FMODE_WRITE);
 
         return res;
 }
@@ -426,7 +426,7 @@ int swsusp_write(unsigned int flags)
 
         release_swap_writer(&handle);
  out:
-        swsusp_close();
+        swsusp_close(FMODE_WRITE);
         return error;
 }
 
@@ -574,7 +574,7 @@ int swsusp_read(unsigned int *flags_p)
                 error = load_image(&handle, &snapshot, header->pages - 1);
         release_swap_reader(&handle);
 
-        blkdev_put(resume_bdev);
+        blkdev_put(resume_bdev, FMODE_READ);
 
         if (!error)
                 pr_debug("PM: Image successfully loaded\n");
@@ -609,7 +609,7 @@ int swsusp_check(void)
                         return -EINVAL;
                 }
                 if (error)
-                        blkdev_put(resume_bdev);
+                        blkdev_put(resume_bdev, FMODE_READ);
                 else
                         pr_debug("PM: Signature found, resuming\n");
         } else {
@@ -626,14 +626,14 @@ int swsusp_check(void)
  *      swsusp_close - close swap device.
  */
 
-void swsusp_close(void)
+void swsusp_close(fmode_t mode)
 {
         if (IS_ERR(resume_bdev)) {
                 pr_debug("PM: Image device not initialised\n");
                 return;
         }
 
-        blkdev_put(resume_bdev);
+        blkdev_put(resume_bdev, mode); /* move up */
 }
 
 static int swsusp_header_init(void)
diff --git a/sound/core/oss/pcm_oss.c b/sound/core/oss/pcm_oss.c
index 1af62b8b86c6..e17836680f49 100644
--- a/sound/core/oss/pcm_oss.c
+++ b/sound/core/oss/pcm_oss.c
@@ -2283,7 +2283,7 @@ static int snd_pcm_oss_open_file(struct file *file,
         int idx, err;
         struct snd_pcm_oss_file *pcm_oss_file;
         struct snd_pcm_substream *substream;
-        unsigned int f_mode = file->f_mode;
+        fmode_t f_mode = file->f_mode;
 
         if (rpcm_oss_file)
                 *rpcm_oss_file = NULL;
diff --git a/sound/oss/au1550_ac97.c b/sound/oss/au1550_ac97.c
index 23018a7c063a..81e1f443d094 100644
--- a/sound/oss/au1550_ac97.c
+++ b/sound/oss/au1550_ac97.c
@@ -93,7 +93,7 @@ static struct au1550_state {
         spinlock_t      lock;
         struct mutex open_mutex;
         struct mutex sem;
-        mode_t          open_mode;
+        fmode_t          open_mode;
         wait_queue_head_t open_wait;
 
         struct dmabuf {
diff --git a/sound/oss/dmasound/dmasound.h b/sound/oss/dmasound/dmasound.h
index d978b0096564..1cb13fe56ec4 100644
--- a/sound/oss/dmasound/dmasound.h
+++ b/sound/oss/dmasound/dmasound.h
@@ -129,7 +129,7 @@ typedef struct {
     int (*mixer_ioctl)(u_int, u_long);  /* optional */
     int (*write_sq_setup)(void);        /* optional */
     int (*read_sq_setup)(void);         /* optional */
-    int (*sq_open)(mode_t);             /* optional */
+    int (*sq_open)(fmode_t);            /* optional */
     int (*state_info)(char *, size_t);  /* optional */
     void (*abort_read)(void);           /* optional */
     int min_dsp_speed;
@@ -235,7 +235,7 @@ struct sound_queue {
      */
     int active;
     wait_queue_head_t action_queue, open_queue, sync_queue;
-    int open_mode;
+    fmode_t open_mode;
     int busy, syncing, xruns, died;
 };
 
diff --git a/sound/oss/dmasound/dmasound_atari.c b/sound/oss/dmasound/dmasound_atari.c
index 285239d64b82..4d45bd63718b 100644
--- a/sound/oss/dmasound/dmasound_atari.c
+++ b/sound/oss/dmasound/dmasound_atari.c
@@ -143,7 +143,7 @@ static int AtaMixerIoctl(u_int cmd, u_long arg);
 static int TTMixerIoctl(u_int cmd, u_long arg);
 static int FalconMixerIoctl(u_int cmd, u_long arg);
 static int AtaWriteSqSetup(void);
-static int AtaSqOpen(mode_t mode);
+static int AtaSqOpen(fmode_t mode);
 static int TTStateInfo(char *buffer, size_t space);
 static int FalconStateInfo(char *buffer, size_t space);
 
@@ -1461,7 +1461,7 @@ static int AtaWriteSqSetup(void)
         return 0 ;
 }
 
-static int AtaSqOpen(mode_t mode)
+static int AtaSqOpen(fmode_t mode)
 {
         write_sq_ignore_int = 1;
         return 0 ;
diff --git a/sound/oss/dmasound/dmasound_core.c b/sound/oss/dmasound/dmasound_core.c
index 95fc5c681755..b8239f3168fb 100644
--- a/sound/oss/dmasound/dmasound_core.c
+++ b/sound/oss/dmasound/dmasound_core.c
@@ -212,7 +212,7 @@ static int irq_installed;
 #endif /* MODULE */
 
 /* control over who can modify resources shared between play/record */
-static mode_t shared_resource_owner;
+static fmode_t shared_resource_owner;
 static int shared_resources_initialised;
 
     /*
@@ -668,7 +668,7 @@ static inline void sq_init_waitqueue(struct sound_queue *sq)
 
 #if 0 /* blocking open() */
 static inline void sq_wake_up(struct sound_queue *sq, struct file *file,
-                              mode_t mode)
+                              fmode_t mode)
 {
         if (file->f_mode & mode) {
                 sq->busy = 0; /* CHECK: IS THIS OK??? */
@@ -677,7 +677,7 @@ static inline void sq_wake_up(struct sound_queue *sq, struct file *file,
 }
 #endif
 
-static int sq_open2(struct sound_queue *sq, struct file *file, mode_t mode,
+static int sq_open2(struct sound_queue *sq, struct file *file, fmode_t mode,
                     int numbufs, int bufsize)
 {
         int rc = 0;
@@ -891,10 +891,10 @@ static int sq_release(struct inode *inode, struct file *file)
    is the owner - if we have problems.
 */
 
-static int shared_resources_are_mine(mode_t md)
+static int shared_resources_are_mine(fmode_t md)
 {
         if (shared_resource_owner)
-                return (shared_resource_owner & md ) ;
+                return (shared_resource_owner & md) != 0;
         else {
                 shared_resource_owner = md ;
                 return 1 ;
diff --git a/sound/oss/msnd.h b/sound/oss/msnd.h
index 61b3955481c5..c8be47ec2b7e 100644
--- a/sound/oss/msnd.h
+++ b/sound/oss/msnd.h
@@ -211,7 +211,7 @@ typedef struct multisound_dev {
 
         /* State variables */
         enum { msndClassic, msndPinnacle } type;
-        mode_t mode;
+        fmode_t mode;
         unsigned long flags;
 #define F_RESETTING                     0
 #define F_HAVEDIGITAL                   1
diff --git a/sound/oss/sound_config.h b/sound/oss/sound_config.h
index 1a00a3210616..55271fbe7f49 100644
--- a/sound/oss/sound_config.h
+++ b/sound/oss/sound_config.h
@@ -110,24 +110,16 @@ struct channel_info {
 #define OPEN_WRITE      PCM_ENABLE_OUTPUT
 #define OPEN_READWRITE  (OPEN_READ|OPEN_WRITE)
 
-#if OPEN_READ == FMODE_READ && OPEN_WRITE == FMODE_WRITE
-
-static inline int translate_mode(struct file *file)
-{
-        return file->f_mode;
-}
-
-#else
-
 static inline int translate_mode(struct file *file)
 {
-        return ((file->f_mode & FMODE_READ) ? OPEN_READ : 0) |
-                ((file->f_mode & FMODE_WRITE) ? OPEN_WRITE : 0);
+        if (OPEN_READ == (__force int)FMODE_READ &&
+            OPEN_WRITE == (__force int)FMODE_WRITE)
+                return (__force int)(file->f_mode & (FMODE_READ | FMODE_WRITE));
+        else
+                return ((file->f_mode & FMODE_READ) ? OPEN_READ : 0) |
+                        ((file->f_mode & FMODE_WRITE) ? OPEN_WRITE : 0);
 }
 
-#endif
-
-
 #include "sound_calls.h"
 #include "dev_table.h"
 
diff --git a/sound/oss/swarm_cs4297a.c b/sound/oss/swarm_cs4297a.c
index 044453a4ee5b..41562ecde5bb 100644
--- a/sound/oss/swarm_cs4297a.c
+++ b/sound/oss/swarm_cs4297a.c
@@ -295,7 +295,7 @@ struct cs4297a_state {
         struct mutex open_mutex;
         struct mutex open_sem_adc;
         struct mutex open_sem_dac;
-        mode_t open_mode;
+        fmode_t open_mode;
         wait_queue_head_t open_wait;
         wait_queue_head_t open_wait_adc;
         wait_queue_head_t open_wait_dac;
diff --git a/sound/oss/vwsnd.c b/sound/oss/vwsnd.c
index dcbb3f739e61..78b8acc7c3b9 100644
--- a/sound/oss/vwsnd.c
+++ b/sound/oss/vwsnd.c
@@ -1509,7 +1509,7 @@ typedef struct vwsnd_dev {
         struct mutex open_mutex;
         struct mutex io_mutex;
         struct mutex mix_mutex;
-        mode_t          open_mode;
+        fmode_t         open_mode;
         wait_queue_head_t open_wait;
 
         lithium_t       lith;