Name
bio_map_user —
map user address into bio
Synopsis
struct bio * fsfuncbio_map_user ( | struct request_queue * q, |
| | struct block_device * bdev, |
| | unsigned long uaddr, |
| | unsigned int len, |
| | int write_to_vm, |
| | gfp_t gfp_mask); |
Arguments
q
the struct request_queue for the bio
bdev
destination block device
uaddr
start of user address
len
length in bytes
write_to_vm
bool indicating writing to pages or not
gfp_mask
memory allocation flags
Description
Map the user space address into a bio suitable for io to a block
device. Returns an error pointer in case of error.