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out of date average, modify ewma_add() by using ACCESS_ONCE to prevent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 eric.duma...@gmail.com
Signed-off-by: Michael Dalton
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out of date average, modify ewma_add() by using ACCESS_ONCE to prevent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
On Thu, Jan 16, 2014 at 11:52:29AM -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out of date average, modify ewma_add() by using ACCESS_ONCE to prevent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