| From | Ben Hutchings <> | Date | Mon, 28 Apr 2014 02:11:22 +0100 | Subject | [PATCH 3.2 88/94] drivers: hv: additional switch to use mb() instead of smp_mb() |
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3.2.58-rc1 review patch. If anyone has any objections, please let me know.
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From: Qiang Huang <h.huangqiang@huawei.com>
commit e4af376d04b0(drivers: hv: switch to use mb() instead of smp_mb()), the adjustment mistakenly dropped the change in hv_ringbuffer_read, so add it.
Signed-off-by: Qiang Huang <h.huangqiang@huawei.com> Signed-off-by: Ben Hutchings <ben@decadent.org.uk> --- drivers/hv/ring_buffer.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/hv/ring_buffer.c +++ b/drivers/hv/ring_buffer.c @@ -485,7 +485,7 @@ int hv_ringbuffer_read(struct hv_ring_bu /* 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 */ - smp_mb(); + mb(); /* Update the read index */ hv_set_next_read_location(inring_info, next_read_location);
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