static struct cache_deferred_req *svc_defer(struct cache_req *req);
static void svc_age_temp_xprts(unsigned long closure);
static void svc_delete_xprt(struct svc_xprt *xprt);
+static void svc_xprt_do_enqueue(struct svc_xprt *xprt);
/* apparently the "standard" is that clients close
* idle connections after 5 minutes, servers after
if (!test_bit(XPT_BUSY, &xprt->xpt_flags))
return;
/* As soon as we clear busy, the xprt could be closed and
- * 'put', so we need a reference to call svc_xprt_enqueue with:
+ * 'put', so we need a reference to call svc_xprt_do_enqueue with:
*/
svc_xprt_get(xprt);
+ smp_mb__before_atomic();
clear_bit(XPT_BUSY, &xprt->xpt_flags);
- svc_xprt_enqueue(xprt);
+ svc_xprt_do_enqueue(xprt);
svc_xprt_put(xprt);
}
return false;
}
-/*
- * Queue up a transport with data pending. If there are idle nfsd
- * processes, wake 'em up.
- *
- */
-void svc_xprt_enqueue(struct svc_xprt *xprt)
+static void svc_xprt_do_enqueue(struct svc_xprt *xprt)
{
struct svc_pool *pool;
struct svc_rqst *rqstp;
out_unlock:
spin_unlock_bh(&pool->sp_lock);
}
+
+/*
+ * Queue up a transport with data pending. If there are idle nfsd
+ * processes, wake 'em up.
+ *
+ */
+void svc_xprt_enqueue(struct svc_xprt *xprt)
+{
+ if (test_bit(XPT_BUSY, &xprt->xpt_flags))
+ return;
+ svc_xprt_do_enqueue(xprt);
+}
EXPORT_SYMBOL_GPL(svc_xprt_enqueue);
/*
atomic_sub((rqstp->rq_reserved - space), &xprt->xpt_reserved);
rqstp->rq_reserved = space;
+ if (xprt->xpt_ops->xpo_adjust_wspace)
+ xprt->xpt_ops->xpo_adjust_wspace(xprt);
svc_xprt_enqueue(xprt);
}
}
svc_add_new_temp_xprt(serv, newxpt);
else
module_put(xprt->xpt_class->xcl_owner);
- } else if (xprt->xpt_ops->xpo_has_wspace(xprt)) {
+ } else {
/* XPT_DATA|XPT_DEFERRED case: */
dprintk("svc: server %p, pool %u, transport %p, inuse=%d\n",
rqstp, rqstp->rq_pool->sp_id, xprt,