Messages in this thread Patch in this message | | | From | "K. Y. Srinivasan" <> | Subject | [PATCH 27/49] Staging: hv: vmbus: Fix the memory barrier in hv_ringbuffer_read() | Date | Mon, 6 Jun 2011 15:49:51 -0700 |
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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> --- drivers/staging/hv/ring_buffer.c | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/drivers/staging/hv/ring_buffer.c b/drivers/staging/hv/ring_buffer.c index 3da3330..932af1a 100644 --- a/drivers/staging/hv/ring_buffer.c +++ b/drivers/staging/hv/ring_buffer.c @@ -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); -- 1.7.4.1
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