BIO_MAP_KERN(9) The Linux VFS BIO_MAP_KERN(9)

NAME bio_map_kern - map kernel address into bio

SYNOPSIS struct bio * bio_map_kern(struct request_queue * q, void * data, unsigned int len, gfp_t gfp_mask);

ARGUMENTS q the struct request_queue for the bio

data pointer to buffer to map

len length in bytes

gfp_mask allocation flags for bio allocation

DESCRIPTION Map the kernel address into a bio suitable for io to a block device. Returns an error pointer in case of error.

COPYRIGHT Kernel Hackers Manual 2.6. January 2013 BIO_MAP_KERN(9)