1BLK_ADD_TRACE_RQ_REM(9) Block Devices BLK_ADD_TRACE_RQ_REM(9)
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6 blk_add_trace_rq_remap - Add a trace for a request-remap operation
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9 void blk_add_trace_rq_remap(struct request_queue * q,
10 struct request * rq, dev_t dev,
11 sector_t from);
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14 q
15 queue the io is for
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17 rq
18 the source request
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20 dev
21 target device
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23 from
24 source sector
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27 Device mapper remaps request to other devices. Add a trace for that
28 action.
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31Kernel Hackers Manual 2.6. June 2019 BLK_ADD_TRACE_RQ_REM(9)