On Fri, 2017-07-07 at 21:12:16 UTC, Benjamin Herrenschmidt wrote:
When writing to the process table, we need to ensure the store is
visible to a subsequent access by the MMU. We assume we never have
the PID active while doing the update, so a ptesync/isync pair
should hopefully be a big enough hammer for our purpose.
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Applied to powerpc fixes, thanks.
https://git.kernel.org/powerpc/c/3a6a04706fd08eb5677fdfc086e26f
cheers