Re: [PATCH bpf-next 3/4] xsk: avoid store-tearing when assigning umem

[Jonathan Lemon]

On 22 Aug 2019, at 2:13, Björn Töpel wrote:

> From: Björn Töpel <bjorn.to...@intel.com>
>
> The umem member of struct xdp_sock is read outside of the control
> mutex, in the mmap implementation, and needs a WRITE_ONCE to avoid
> potentional store-tearing.
>
> Fixes: 423f38329d26 ("xsk: add umem fill queue support and mmap")
> Signed-off-by: Björn Töpel <bjorn.to...@intel.com>

Acked-by: Jonathan Lemon <jonathan.le...@gmail.com>