BLK_ADD_TRACE_REMAP(9) Block Devices BLK_ADD_TRACE_REMAP(9)
NAME
blk_add_trace_remap - Add a trace for a remap operation
SYNOPSIS
void blk_add_trace_remap(struct request_queue * q, struct bio * bio, dev_t dev, sector_t from);
ARGUMENTS
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.
COPYRIGHT
Kernel Hackers Manual 2.6. July 2010 BLK_ADD_TRACE_REMAP(9)
