other versions
- jessie-backports 4.9.88-1+deb9u1~bpo8+1
- stretch 4.9.144-3
TRACE_BLOCK_SPLIT(9) | Block IO | TRACE_BLOCK_SPLIT(9) |
NAME¶
trace_block_split - split a single bio struct into two bio structsSYNOPSIS¶
void
trace_block_split(struct request_queue * q,
struct bio * bio,
unsigned int new_sector);
ARGUMENTS¶
qqueue 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¶
May 2018 | Kernel Hackers Manual 4.9. |