| get_request(9) - phpMan
GET_REQUEST(9) Block Devices GET_REQUEST(9)
NAME
get_request - get a free request
SYNOPSIS
struct request * get_request(struct request_queue * q, int op, int op_flags,
struct bio * bio, gfp_t gfp_mask);
ARGUMENTS
q
request_queue to allocate request 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. If __GFP_DIRECT_RECLAIM is set in gfp_mask, this function keeps
retrying under memory pressure and fails iff 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
Kernel Hackers Manual 4.8. January 2017 GET_REQUEST(9)
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