other versions
| TRACE_BLOCK_SPLIT(9) | Block IO | TRACE_BLOCK_SPLIT(9) |
NAME¶
trace_block_split - split a single bio struct into two bio structs
SYNOPSIS¶
void trace_block_split(struct request_queue * q, struct bio * bio, unsigned int new_sector);
ARGUMENTS¶
q
queue containing the bio
bio
block operation being split
new_sector
The starting sector for the new bio
DESCRIPTION¶
The bio request bio in request queue q needs to be split into two bio requests. The newly created bio request starts at new_sector. This split may be required due to hardware limitation such as operation crossing device boundaries in a RAID system.
AUTHORS¶
Jason Baron <jbaron@redhat.com>
Author.
William Cohen <wcohen@redhat.com>
Author.
COPYRIGHT¶
| January 2017 | Kernel Hackers Manual 4.8. |