BLK_ADD_TRACE_BIO_RE(9)                   Block Devices                   BLK_ADD_TRACE_BIO_RE(9)



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.

COPYRIGHT
Kernel Hackers Manual 4.8.                 January 2017                   BLK_ADD_TRACE_BIO_RE(9)