Name

blk_queue_set_discard — set a discard_sectors function for queue

Synopsis

void blk_queue_set_discard (struct request_queue * q,
 prepare_discard_fn * dfn);
 

Arguments

q

queue

dfn

prepare_discard function

Description

It's possible for a queue to register a discard callback which is used to transform a discard request into the appropriate type for the hardware. If none is registered, then discard requests are failed with EOPNOTSUPP.