X-Git-Url: https://git.proxmox.com/?a=blobdiff_plain;f=include%2Flinux%2Fhyperv.h;h=a08587861f12d7866057c367a637400cd09954db;hb=5053fdd0922951f7fa2ae83f61016333484ca2ac;hp=6c9336626592b0a07e4216ea97a72a050e7146d4;hpb=19286e4a7a0ce0a7ac584be614c40513d6318ad6;p=mirror_ubuntu-bionic-kernel.git

diff --git a/include/linux/hyperv.h b/include/linux/hyperv.h
index 6c9336626592..a08587861f12 100644
--- a/include/linux/hyperv.h
+++ b/include/linux/hyperv.h
@@ -878,6 +878,13 @@ struct vmbus_channel {
 
 	bool probe_done;
 
+	/*
+	 * We must offload the handling of the primary/sub channels
+	 * from the single-threaded vmbus_connection.work_queue to
+	 * two different workqueue, otherwise we can block
+	 * vmbus_connection.work_queue and hang: see vmbus_process_offer().
+	 */
+	struct work_struct add_channel_work;
 };
 
 static inline bool is_hvsock_channel(const struct vmbus_channel *c)
@@ -1035,6 +1042,8 @@ extern int vmbus_establish_gpadl(struct vmbus_channel *channel,
 extern int vmbus_teardown_gpadl(struct vmbus_channel *channel,
 				     u32 gpadl_handle);
 
+void vmbus_reset_channel_cb(struct vmbus_channel *channel);
+
 extern int vmbus_recvpacket(struct vmbus_channel *channel,
 				  void *buffer,
 				  u32 bufferlen,
@@ -1131,8 +1140,9 @@ struct hv_ring_buffer_debug_info {
 	u32 bytes_avail_towrite;
 };
 
-void hv_ringbuffer_get_debuginfo(const struct hv_ring_buffer_info *ring_info,
-			    struct hv_ring_buffer_debug_info *debug_info);
+
+int hv_ringbuffer_get_debuginfo(const struct hv_ring_buffer_info *ring_info,
+				struct hv_ring_buffer_debug_info *debug_info);
 
 /* Vmbus interface */
 #define vmbus_driver_register(driver)	\