[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Message-ID: <lsq.1398647482.487492871@decadent.org.uk>
Date: Mon, 28 Apr 2014 02:11:22 +0100
From: Ben Hutchings <ben@...adent.org.uk>
To: linux-kernel@...r.kernel.org, stable@...r.kernel.org
CC: akpm@...ux-foundation.org, "Qiang Huang" <h.huangqiang@...wei.com>
Subject: [PATCH 3.2 88/94] drivers: hv: additional switch to use mb()
instead of smp_mb()
3.2.58-rc1 review patch. If anyone has any objections, please let me know.
------------------
From: Qiang Huang <h.huangqiang@...wei.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@...wei.com>
Signed-off-by: Ben Hutchings <ben@...adent.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);
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
Powered by blists - more mailing lists