add new system file

hc

2024-02-20 102a0743326a03cd1a1202ceda21e175b7d3575c

 kernel/include/linux/hyperv.h
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..
@@ -1269,6 +1269,8 @@
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 int hv_ringbuffer_get_debuginfo(struct hv_ring_buffer_info *ring_info,
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 				struct hv_ring_buffer_debug_info *debug_info);
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+bool hv_ringbuffer_spinlock_busy(struct vmbus_channel *channel);
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+
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 /* Vmbus interface */
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 #define vmbus_driver_register(driver)	\
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 	__vmbus_driver_register(driver, THIS_MODULE, KBUILD_MODNAME)