1. NAME▲

blkdev_get_by_dev - open a block device by device number

2. SYNOPSIS ▲

struct block_device * blkdev_get_by_dev(dev_t  dev , fmode_t  mode , void *  holder );

3. ARGUMENTS ▲

dev
    device number of block device to open

mode
    FMODE_* mask

holder
    exclusive holder identifier

4. DESCRIPTION ▲

Open the blockdevice described by device number dev. mode and holder are identical to blkdev_get.

Use it ONLY if you really do not have anything better - i.e. when you are behind a truly sucky interface and all you are given is a device number. _Never_ to be used for internal purposes. If you ever need it - reconsider your API.

On success, the returned block_device has reference count of one.

5. CONTEXT ▲

Might sleep.

6. RETURNS ▲

Pointer to block_device on success, ERR_PTR(-errno) on failure.

7. COPYRIGHT ▲