Re: [PATCH V4 net 1/3] Revert "tuntap: add missing xdp flush"

[David Miller]

From: Jason Wang <jasowang@xxxxxxxxxx>
Date: Sat, 24 Feb 2018 11:32:24 +0800

> This reverts commit 762c330d670e3d4b795cf7a8d761866fdd1eef49. The
> reason is we try to batch packets for devmap which causes calling
> xdp_do_flush() in the process context. Simply disabling preemption
> may not work since process may move among processors which lead
> xdp_do_flush() to miss some flushes on some processors.
> 
> So simply revert the patch, a follow-up patch will add the xdp flush
> correctly.
> 
> Reported-by: Christoffer Dall <christoffer.dall@xxxxxxxxxx>
> Fixes: 762c330d670e ("tuntap: add missing xdp flush")
> Signed-off-by: Jason Wang <jasowang@xxxxxxxxxx>

Applied.