Commit ef0d5b23 authored by K. Y. Srinivasan's avatar K. Y. Srinivasan Committed by Greg Kroah-Hartman

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

Use the correct barrier interface.
Signed-off-by: default avatarK. Y. Srinivasan <kys@microsoft.com>
Signed-off-by: default avatarHaiyang Zhang <haiyangz@microsoft.com>
Signed-off-by: default avatarAbhishek Kane <v-abkane@microsoft.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@suse.de>
parent ac4accb2
...@@ -513,7 +513,7 @@ int hv_ringbuffer_read(struct hv_ring_buffer_info *inring_info, void *buffer, ...@@ -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 */ /* 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 */ /* the writer may start writing to the read area once the read index */
/*is updated */ /*is updated */
mb(); smp_mb();
/* Update the read index */ /* Update the read index */
hv_set_next_read_location(inring_info, next_read_location); hv_set_next_read_location(inring_info, next_read_location);
......
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