__get_request9
Get a free request
Usage
struct request * __get_request(struct request_list * rl, int op, int op_flags, struct bio * bio, gfp_t gfp_mask);
Arguments
rl
request 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
Overview
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*.
Releases
2 releases since Debian 8 (Jessie); the text changed 1 time.