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- jessie 3.16.56-1+deb8u1
GET_REQUEST(9) | Block Devices | GET_REQUEST(9) |
NAME¶
get_request - get a free requestSYNOPSIS¶
struct request *
get_request(struct request_queue * q,
int rw_flags,
struct bio * bio,
gfp_t gfp_mask);
ARGUMENTS¶
qrequest_queue to allocate request from
rw_flags
RW and SYNC flags
bio
bio to allocate request for (can be NULL)
gfp_mask
allocation mask
DESCRIPTION¶
Get a free request from q. If __GFP_WAIT is set in gfp_mask, this function keeps retrying under memory pressure and fails iff q is dead. Must be callled 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 2018 | Kernel Hackers Manual 3.16 |