lkml.org 
[lkml]   [2011]   [Jun]   [6]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
    Patch in this message
    /
    From
    Subject[PATCH 29/49] Staging: hv: vmbus: Change the memory barrier in hv_ringbuffer_write()
    Date
    Use the correct memory barrier interface in Change the memory barrier 
    in hv_ringbuffer_write().

    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 8b62553..42f7672 100644
    --- a/drivers/staging/hv/ring_buffer.c
    +++ b/drivers/staging/hv/ring_buffer.c
    @@ -413,7 +413,7 @@ int hv_ringbuffer_write(struct hv_ring_buffer_info *outring_info,
    sizeof(u64));

    /* Make sure we flush all writes before updating the writeIndex */
    - mb();
    + smp_wmb();

    /* Now, update the write location */
    hv_set_next_write_location(outring_info, next_write_location);
    --
    1.7.4.1


    \
     
     \ /
      Last update: 2011-06-07 00:47    [from the cache]
    ©2003-2011 Jasper Spaans