subject:"\[PATCH nf\] netfilter\: x_tables\: ensure readers see new \->private value"

Re: [PATCH nf] netfilter: x_tables: ensure readers see new ->private value

2017-10-11 Thread Eric Dumazet

On Wed, Oct 11, 2017 at 11:03 AM, Florian Westphal wrote: > Eric Dumazet wrote: > But it seems we need an extra smp_wmb() after > smp_wmb(); > table->private = newinfo; > > Otherwise we have no guarantee other cpus actually see the new > ->private value. > >

[PATCH nf] netfilter: x_tables: ensure readers see new ->private value

2017-10-11 Thread Florian Westphal

Eric Dumazet wrote: But it seems we need an extra smp_wmb() after smp_wmb(); table->private = newinfo; Otherwise we have no guarantee other cpus actually see the new ->private value. Suggested-by: Eric Dumazet Signed-off-by: Florian Westphal