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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¶
struct request_queue * q
the struct request_queue for the bio
void * data
pointer to buffer to map
unsigned int len
length in bytes
gfp_t 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¶
| July 2017 | Kernel Hackers Manual 4.12 |