| BLKDEV_GET(9) | The Linux VFS | BLKDEV_GET(9) |
NAME¶
blkdev_get - open a block device
SYNOPSIS¶
int blkdev_get(struct block_device * bdev, fmode_t mode, void * holder);
ARGUMENTS¶
bdev
block_device to open
mode
FMODE_* mask
holder
exclusive holder identifier
DESCRIPTION¶
Open bdev with mode. If mode includes FMODE_EXCL, bdev is open with exclusive access. Specifying FMODE_EXCL with NULLholder is invalid. Exclusive opens may nest for the same holder.
On success, the reference count of bdev is unchanged. On failure, bdev is put.
CONTEXT¶
Might sleep.
RETURNS¶
0 on success, -errno on failure.
COPYRIGHT¶
| June 2024 | Kernel Hackers Manual 3.10 |