blk_add_trace_rq_remap man page on Oracle

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BLK_ADD_TRACE_RQ_REM(9)		 Block Devices	       BLK_ADD_TRACE_RQ_REM(9)

NAME
       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.

COPYRIGHT
Kernel Hackers Manual 3.8.	   June 2014	       BLK_ADD_TRACE_RQ_REM(9)
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