Name
generic_unplug_device —
fire a request queue
Synopsis
void generic_unplug_device ( | struct request_queue * | q); |
Arguments
q
The struct request_queue in question
Description
Linux uses plugging to build bigger requests queues before letting
the device have at them. If a queue is plugged, the I/O scheduler
is still adding and merging requests on the queue. Once the queue
gets unplugged, the request_fn defined for the queue is invoked and
transfers started.