1BLK_ADD_TRACE_RQ(9) Block Devices BLK_ADD_TRACE_RQ(9)
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4
NAME
6blk_add_trace_rq - Add a trace for a request oriented action
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SYNOPSIS
9void blk_add_trace_rq(struct request_queue * q, struct request * rq,
10u32 what);
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ARGUMENTS
13q
14queue the io is for
1516
rq
17the source request
1819
what
20the action
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DESCRIPTION
23Records an action against a request. Will log the bio offset + size.
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COPYRIGHT
26Kernel Hackers Manual 2.6. November 2011 BLK_ADD_TRACE_RQ(9)