Commit ef0d5b23 authored Jun 06, 2011 by K. Y. Srinivasan Committed by Greg Kroah-Hartman Jun 07, 2011

Staging: hv: vmbus: Fix the memory barrier in hv_ringbuffer_read()



Use the correct barrier interface.

Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
Signed-off-by: Haiyang Zhang <haiyangz@microsoft.com>
Signed-off-by: Abhishek Kane <v-abkane@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

parent ac4accb2

drivers/staging/hv/ring_buffer.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -513,7 +513,7 @@ int hv_ringbuffer_read(struct hv_ring_buffer_info inring_info, void buffer,
		/* Make sure all reads are done before we update the read index since */
		/* the writer may start writing to the read area once the read index */
		/is updated /
		mb();
		smp_mb();

		/* Update the read index */
		hv_set_next_read_location(inring_info, next_read_location);