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TRACE_BLOCK_RQ_COMPL(9) Block IO TRACE_BLOCK_RQ_COMPL(9)

NAME

trace_block_rq_complete - block IO operation completed by device driver

SYNOPSIS

void trace_block_rq_complete(struct request_queue * q, struct request * rq, unsigned int nr_bytes);

ARGUMENTS

q
queue containing the block operation request
rq
block operations request
nr_bytes
number of completed bytes

DESCRIPTION

The block_rq_complete tracepoint event indicates that some portion of operation request has been completed by the device driver. If the rq->bio is NULL, then there is absolutely no additional work to do for the request. If rq->bio is non-NULL then there is additional work required to complete the request.

AUTHORS

Jason Baron <jbaron@redhat.com>
Author.
William Cohen <wcohen@redhat.com>
Author.

COPYRIGHT

March 2016 Kernel Hackers Manual 3.2.