add missing file

0001-virtio-9p-use-accessor-to-get-thread-pool.patch

@@ -0,0 +1,34 @@
+From: Greg Kurz <gkurz@linux.vnet.ibm.com>
+Subject: [PATCH] virtio-9p: use accessor to get thread_pool
+Date: Sun, 20 Dec 2015 12:19:05 +0100
+
+The aio_context_new() function does not allocate a thread pool. This is
+deferred to the first call to the aio_get_thread_pool() accessor. It is
+hence forbidden to access the thread_pool field directly, as it may be
+NULL. The accessor *must* be used always.
+
+Fixes: ebac1202c95a4f1b76b6ef3f0f63926fa76e753e
+Cc: qemu-stable@nongnu.org
+Reviewed-by: Michael Tokarev <mjt@tls.msk.ru>
+Tested-by: Michael Tokarev <mjt@tls.msk.ru>
+Signed-off-by: Greg Kurz <gkurz@linux.vnet.ibm.com>
+
+ hw/9pfs/virtio-9p-coth.c |    2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/hw/9pfs/virtio-9p-coth.c b/hw/9pfs/virtio-9p-coth.c
+index fb6e8f80e0f4..ab9425c60fd2 100644
+--- a/hw/9pfs/virtio-9p-coth.c
++++ b/hw/9pfs/virtio-9p-coth.c
+@@ -36,6 +36,6 @@ static int coroutine_enter_func(void *arg)
+ void co_run_in_worker_bh(void *opaque)
+ {
+     Coroutine *co = opaque;
+-    thread_pool_submit_aio(qemu_get_aio_context()->thread_pool,
++    thread_pool_submit_aio(aio_get_thread_pool(qemu_get_aio_context()),
+                            coroutine_enter_func, co, coroutine_enter_cb, co);
+ }
+
+
+
+