table of contents
| 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¶
| May 2024 | Kernel Hackers Manual 2.6. |