centos man page for blk_add_request_payload

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)

NAME
blk_add_request_payload - add a payload to a request
SYNOPSIS
void blk_add_request_payload(struct request * rq, struct page * page, unsigned int len);
ARGUMENTS
rq request to update page page backing the payload len length of the payload.
DESCRIPTION
This 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.
COPYRIGHT
Kernel Hackers Manual 3.10 June 2014 BLK_ADD_REQUEST_PAYL(9)
Related Man Pages
keyctl_update(3) - suse
keyctl_update(3) - debian
netlink(3) - v7
netlink(3) - opendarwin
netlink(3) - osx
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