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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

April 2019 Kernel Hackers Manual 4.9.