BIO_MAP_USER
Section: The Linux VFS (9)
Updated: February 2011
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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.
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