Name
blk_add_trace_bio_remap —
Add a trace for a bio-remap operation
Synopsis
void blk_add_trace_bio_remap ( | void * ignore, |
| | struct request_queue * q, |
| | struct bio * bio, |
| | dev_t dev, |
| | sector_t from); |
Arguments
ignore
trace callback data parameter (not used)
q
queue the io is for
bio
the source bio
dev
target device
from
source sector
Description
Device mapper or raid target sometimes need to split a bio because
it spans a stripe (or similar). Add a trace for that action.