p9_client_rpc(struct p9_client *c, int8_t type, const char *fmt, ...);
/**
- * v9fs_parse_options - parse mount options into session structure
- * @options: options string passed from mount
- * @v9ses: existing v9fs session information
+ * parse_options - parse mount options into client structure
+ * @opts: options string passed from mount
+ * @clnt: existing v9fs client information
*
* Return 0 upon success, -ERRNO upon failure
*/
}
}
- if (!clnt->trans_mod)
- clnt->trans_mod = v9fs_get_default_trans();
-
kfree(options);
return ret;
}
p9pdu_reset(req->tc);
p9pdu_reset(req->rc);
- req->flush_tag = 0;
req->tc->tag = tag-1;
req->status = REQ_STATUS_ALLOC;
/**
* p9_tag_init - setup tags structure and contents
- * @tags: tags structure from the client struct
+ * @c: v9fs client struct
*
* This initializes the tags structure for each client instance.
*
/**
* p9_tag_cleanup - cleans up tags structure and reclaims resources
- * @tags: tags structure from the client struct
+ * @c: v9fs client struct
*
* This frees resources associated with the tags structure
*
*/
void p9_client_cb(struct p9_client *c, struct p9_req_t *req)
{
- struct p9_req_t *other_req;
- unsigned long flags;
-
P9_DPRINTK(P9_DEBUG_MUX, " tag %d\n", req->tc->tag);
-
- if (req->status == REQ_STATUS_ERROR)
- wake_up(req->wq);
-
- if (req->flush_tag) { /* flush receive path */
- P9_DPRINTK(P9_DEBUG_9P, "<<< RFLUSH %d\n", req->tc->tag);
- spin_lock_irqsave(&c->lock, flags);
- other_req = p9_tag_lookup(c, req->flush_tag);
- if (other_req->status != REQ_STATUS_FLSH) /* stale flush */
- spin_unlock_irqrestore(&c->lock, flags);
- else {
- other_req->status = REQ_STATUS_FLSHD;
- spin_unlock_irqrestore(&c->lock, flags);
- wake_up(other_req->wq);
- }
- p9_free_req(c, req);
- } else { /* normal receive path */
- P9_DPRINTK(P9_DEBUG_MUX, "normal: tag %d\n", req->tc->tag);
- spin_lock_irqsave(&c->lock, flags);
- if (req->status != REQ_STATUS_FLSHD)
- req->status = REQ_STATUS_RCVD;
- spin_unlock_irqrestore(&c->lock, flags);
- wake_up(req->wq);
- P9_DPRINTK(P9_DEBUG_MUX, "wakeup: %d\n", req->tc->tag);
- }
+ wake_up(req->wq);
+ P9_DPRINTK(P9_DEBUG_MUX, "wakeup: %d\n", req->tc->tag);
}
EXPORT_SYMBOL(p9_client_cb);
if (c->dotu)
err = -ecode;
- if (!err) {
+ if (!err || !IS_ERR_VALUE(err))
err = p9_errstr2errno(ename, strlen(ename));
- /* string match failed */
- if (!err)
- err = -ESERVERFAULT;
- }
-
P9_DPRINTK(P9_DEBUG_9P, "<<< RERROR (%d) %s\n", -ecode, ename);
kfree(ename);
/**
* p9_client_flush - flush (cancel) a request
- * c: client state
- * req: request to cancel
+ * @c: client state
+ * @oldreq: request to cancel
*
* This sents a flush for a particular requests and links
* the flush request to the original request. The current
if (IS_ERR(req))
return PTR_ERR(req);
- req->flush_tag = oldtag;
- /* we don't free anything here because RPC isn't complete */
+ /* if we haven't received a response for oldreq,
+ remove it from the list. */
+ spin_lock(&c->lock);
+ if (oldreq->status == REQ_STATUS_FLSH)
+ list_del(&oldreq->req_list);
+ spin_unlock(&c->lock);
+
+ p9_free_req(c, req);
return 0;
}
struct p9_req_t *req;
unsigned long flags;
int sigpending;
- int flushed = 0;
P9_DPRINTK(P9_DEBUG_MUX, "client %p op %d\n", c, type);
goto reterr;
}
- /* if it was a flush we just transmitted, return our tag */
- if (type == P9_TFLUSH)
- return req;
-again:
P9_DPRINTK(P9_DEBUG_MUX, "wait %p tag: %d\n", req->wq, tag);
err = wait_event_interruptible(*req->wq,
req->status >= REQ_STATUS_RCVD);
- P9_DPRINTK(P9_DEBUG_MUX, "wait %p tag: %d returned %d (flushed=%d)\n",
- req->wq, tag, err, flushed);
+ P9_DPRINTK(P9_DEBUG_MUX, "wait %p tag: %d returned %d\n",
+ req->wq, tag, err);
if (req->status == REQ_STATUS_ERROR) {
P9_DPRINTK(P9_DEBUG_ERROR, "req_status error %d\n", req->t_err);
err = req->t_err;
- } else if (err == -ERESTARTSYS && flushed) {
- P9_DPRINTK(P9_DEBUG_MUX, "flushed - going again\n");
- goto again;
- } else if (req->status == REQ_STATUS_FLSHD) {
- P9_DPRINTK(P9_DEBUG_MUX, "flushed - erestartsys\n");
- err = -ERESTARTSYS;
}
- if ((err == -ERESTARTSYS) && (c->status == Connected) && (!flushed)) {
+ if ((err == -ERESTARTSYS) && (c->status == Connected)) {
P9_DPRINTK(P9_DEBUG_MUX, "flushing\n");
- spin_lock_irqsave(&c->lock, flags);
- if (req->status == REQ_STATUS_SENT)
- req->status = REQ_STATUS_FLSH;
- spin_unlock_irqrestore(&c->lock, flags);
sigpending = 1;
- flushed = 1;
clear_thread_flag(TIF_SIGPENDING);
- if (c->trans_mod->cancel(c, req)) {
- err = p9_client_flush(c, req);
- if (err == 0)
- goto again;
- }
+ if (c->trans_mod->cancel(c, req))
+ p9_client_flush(c, req);
+
+ /* if we received the response anyway, don't signal error */
+ if (req->status == REQ_STATUS_RCVD)
+ err = 0;
}
if (sigpending) {
memset(&fid->qid, 0, sizeof(struct p9_qid));
fid->mode = -1;
- fid->rdir_fpos = 0;
fid->uid = current_fsuid();
fid->clnt = clnt;
- fid->aux = NULL;
-
+ fid->rdir = NULL;
spin_lock_irqsave(&clnt->lock, flags);
list_add(&fid->flist, &clnt->fidlist);
spin_unlock_irqrestore(&clnt->lock, flags);
spin_lock_irqsave(&clnt->lock, flags);
list_del(&fid->flist);
spin_unlock_irqrestore(&clnt->lock, flags);
+ kfree(fid->rdir);
kfree(fid);
}
if (err < 0)
goto error;
+ if (!clnt->trans_mod)
+ clnt->trans_mod = v9fs_get_default_trans();
+
if (clnt->trans_mod == NULL) {
err = -EPROTONOSUPPORT;
P9_DPRINTK(P9_DEBUG_ERROR,
if (data) {
memmove(data, dataptr, count);
- data += count;
}
if (udata) {
err = p9pdu_readf(req->rc, clnt->dotu, "wS", &ignored, ret);
if (err) {
- ret = ERR_PTR(err);
p9pdu_dump(1, req->rc);
- goto free_and_error;
+ p9_free_req(clnt, req);
+ goto error;
}
P9_DPRINTK(P9_DEBUG_9P,
ret->name, ret->uid, ret->gid, ret->muid, ret->extension,
ret->n_uid, ret->n_gid, ret->n_muid);
-free_and_error:
p9_free_req(clnt, req);
-error:
return ret;
+
+error:
+ kfree(ret);
+ return ERR_PTR(err);
}
EXPORT_SYMBOL(p9_client_stat);
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff