GET_REQUEST(9) Block Devices GET_REQUEST(9)NAMEget_request - get a free request
SYNOPSIS
struct request * get_request(struct request_queue * q, int rw_flags,
struct bio * bio, gfp_t gfp_mask);
ARGUMENTS
q
request_queue to allocate request from
rw_flags
RW and SYNC flags
bio
bio to allocate request for (can be NULL)
gfp_mask
allocation mask
DESCRIPTION
Get a free request from q. If __GFP_WAIT is set in gfp_mask, this
function keeps retrying under memory pressure and fails iff q is dead.
Must be callled with q->queue_lock held and, Returns NULL on failure,
with q->queue_lock held. Returns !NULL on success, with q->queue_lock
*not held*.
COPYRIGHTKernel Hackers Manual 3.8. June 2014 GET_REQUEST(9)