table of contents
| GET_REQUEST_WAIT(9) | Block Devices | GET_REQUEST_WAIT(9) |
NAME¶
get_request_wait - get a free request with retry
SYNOPSIS¶
struct request * get_request_wait(struct request_queue * q, int rw_flags, struct bio * bio);
ARGUMENTS¶
q
request_queue to allocate request from
rw_flags
RW and SYNC flags
bio
bio to allocate request for (can be NULL)
DESCRIPTION¶
Get a free request from q. This function keeps retrying under memory pressure and fails iff q is dying.
Must be called 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*.
COPYRIGHT¶
| May 2024 | Kernel Hackers Manual 2.6. |