Subject: Re: [PATCH RFC V2 2/2] net: Optimize snmp stat aggregation by walking all the percpu data at once

From: Joe Perches <[email-masked]>
Date: Fri, 28 Aug 2015 14:09:43 -0700

On Fri, 2015-08-28 at 13:55 -0700, Eric Dumazet wrote:
> On Fri, 2015-08-28 at 13:53 -0700, Joe Perches wrote:
> > On Fri, 2015-08-28 at 13:33 -0700, Eric Dumazet wrote:
> > > We do not bother for small struct.
> > > 
> > > Here, the array is big enough that David prefers having an explicit
> > > memset() so that it clearly shows that author of this code was aware of
> > > this.
> > 
> > It's 288 bytes on stack, maybe a kzalloc would be clearer too.
> 
> Could you read patch history and check why this has been rejected ?

I don't see a rejection, just that the initial
submission didn't check the allocation or add
an allocation buffer via kcalloc/kzalloc to the
inet6_fill_ifla6_attrs caller and change the
snmp6_fill_stats arguments.

It could also eliminate the put_unaligned calls.

https://lkml.org/lkml/2015/8/25/114

Was there some other thread?