#include <client.h>

Data Fields
int	status

int	t_err

wait_queue_head_t *	wq

struct p9_fcall *	tc

struct p9_fcall *	rc

void *	aux

struct list_head	req_list

Detailed Description

struct p9_req_t - request slots : status of this request slot : transport error : tag of request being flushed (for flush requests) : wait_queue for the client to block on for this request : the request fcall structure : the response fcall structure : transport specific data (provided for trans_fd migration) : link for higher level objects to chain requests

Transport use an array to track outstanding requests instead of a list. While this may incurr overhead during initial allocation or expansion, it makes request lookup much easier as the tag id is a index into an array. (We use tag+1 so that we can accommodate the -1 tag for the T_VERSION request). This also has the nice effect of only having to allocate wait_queues once, instead of constantly allocating and freeing them. Its possible other resources could benefit from this scheme as well.

Definition at line 112 of file client.h.