1GET_REQUEST(9)                   Block Devices                  GET_REQUEST(9)
2
3
4

NAME

6       get_request - get a free request
7

SYNOPSIS

9       struct request * get_request(struct request_queue * q, int rw_flags,
10                                    struct bio * bio, unsigned int flags);
11

ARGUMENTS

13       q
14           request_queue to allocate request from
15
16       rw_flags
17           RW and SYNC flags
18
19       bio
20           bio to allocate request for (can be NULL)
21
22       flags
23           BLQ_MQ_REQ_* flags.
24

DESCRIPTION

26       Get a free request from q. If __GFP_WAIT is set in gfp_mask, this
27       function keeps retrying under memory pressure and fails iff q is dead.
28
29       Must be called with q->queue_lock held and, Returns ERR_PTR on failure,
30       with q->queue_lock held. Returns request pointer on success, with
31       q->queue_lock *not held*.
32

34Kernel Hackers Manual 3.10         June 2019                    GET_REQUEST(9)
Impressum