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.