blk_add_trace_rq_remap (9) Linux Manual Page
blk_add_trace_rq_remap – Add a trace for a request-remap operation
Synopsis
void blk_add_trace_rq_remap(void *ignore, struct request_queue *q, struct request *rq, dev_t dev, sector_t from);Arguments
ignore
-
- trace callback data parameter (not used)
q
- queue the io is for
rq
- the source request
dev
- target device
from
- source sector
Description
Device mapper remaps request to other devices. Add a trace for that action.