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- stretch 4.9.168-1
__GET_REQUEST(9) | Block Devices | __GET_REQUEST(9) |
NAME¶
__get_request - get a free requestSYNOPSIS¶
struct request * __get_request(struct request_list * rl, int op, int op_flags, struct bio * bio, gfp_t gfp_mask);
ARGUMENTS¶
rlrequest list to allocate from
op
REQ_OP_READ/REQ_OP_WRITE
op_flags
rq_flag_bits
bio
bio to allocate request for (can be NULL)
gfp_mask
allocation mask
DESCRIPTION¶
Get a free request from q. This function may fail under memory pressure or if q is dead.Must be called with q->queue_lock held and, Returns ERR_PTR on failure, with q->queue_lock held. Returns request pointer on success, with q->queue_lock *not held*.
COPYRIGHT¶
April 2019 | Kernel Hackers Manual 4.9. |