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
void * ignore
trace callback data parameter (not used)
struct request_queue * q
queue the io is for
struct bio * bio
the source bio
dev_t dev
target device
sector_t 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.