BIO_MAP_USER(9) The Linux VFS BIO_MAP_USER(9)
NAME
bio_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.
COPYRIGHT
Kernel Hackers Manual 3.10 June 2014 BIO_MAP_USER(9)
