netdev - Re: [PATCH net-next 2/3] net: Namespace-ify sysctl_optmem

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Message-ID: <657b09de9f6a6_14c73d294da@willemb.c.googlers.com.notmuch>
Date: Thu, 14 Dec 2023 08:57:50 -0500
From: Willem de Bruijn <willemdebruijn.kernel@...il.com>
To: Eric Dumazet <edumazet@...gle.com>, 
 "David S . Miller" <davem@...emloft.net>, 
 Jakub Kicinski <kuba@...nel.org>, 
 Paolo Abeni <pabeni@...hat.com>
Cc: Neal Cardwell <ncardwell@...gle.com>, 
 Willem de Bruijn <willemb@...gle.com>, 
 Mina Almasry <almasrymina@...gle.com>, 
 Chao Wu <wwchao@...gle.com>, 
 Pavel Begunkov <asml.silence@...il.com>, 
 netdev@...r.kernel.org, 
 eric.dumazet@...il.com, 
 Eric Dumazet <edumazet@...gle.com>
Subject: Re: [PATCH net-next 2/3] net: Namespace-ify sysctl_optmem_max

Eric Dumazet wrote:
> optmem_max being used in tx zerocopy,
> we want to be able to control it on a netns basis.
> 
> Following patch changes two tests.
> 
> Tested:
> 
> oqq130:~# cat /proc/sys/net/core/optmem_max
> 131072
> oqq130:~# echo 1000000 >/proc/sys/net/core/optmem_max
> oqq130:~# cat /proc/sys/net/core/optmem_max
> 1000000
> oqq130:~# unshare -n
> oqq130:~# cat /proc/sys/net/core/optmem_max
> 131072
> oqq130:~# exit
> logout
> oqq130:~# cat /proc/sys/net/core/optmem_max
> 1000000
> 
> Signed-off-by: Eric Dumazet <edumazet@...gle.com>

Reviewed-by: Willem de Bruijn <willemb@...gle.com>