BIO_MAP_USER(9) The Linux VFS BIO_MAP_USER(9)NAMEbio_map_user - map user address into bio
SYNOPSIS
struct bio * bio_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.
COPYRIGHTKernel Hackers Manual 2.6. November 2013 BIO_MAP_USER(9)