On Thu, 2014-01-16 at 11:52 -0800, Michael Dalton wrote:

To ensure ewma_read() without a lock returns a valid but possibly
out of date average, modify ewma_add() by using ACCESS_ONCE to prevent
intermediate wrong values from being written to avg->internal.

Suggested-by: Eric Dumazet <redacted>
Signed-off-by: Michael Dalton <redacted>
---
 lib/average.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

Signed-off-by: Eric Dumazet <redacted>