Query: blk_add_request_payload
OS: centos
Section: 9
Format: Original Unix Latex Style Formatted with HTML and a Horizontal Scroll Bar
BLK_ADD_REQUEST_PAYL(9) Block Devices BLK_ADD_REQUEST_PAYL(9)NAMEblk_add_request_payload - add a payload to a requestSYNOPSISvoid blk_add_request_payload(struct request * rq, struct page * page, unsigned int len);ARGUMENTSrq request to update page page backing the payload len length of the payload.DESCRIPTIONThis allows to later add a payload to an already submitted request by a block driver. The driver needs to take care of freeing the payload itself. Note that this is a quite horrible hack and nothing but handling of discard requests should ever use it.COPYRIGHTKernel Hackers Manual 3.10 June 2014 BLK_ADD_REQUEST_PAYL(9)
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