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Message-ID: <CABWYdi2SEatfsR7ZeL=iOvqyhcae3b3NPp1+=mQySNoa671KvQ@mail.gmail.com>
Date: Tue, 28 Nov 2023 16:47:52 -0800
From: Ivan Babrou <ivan@...udflare.com>
To: Kuniyuki Iwashima <kuniyu@...zon.com>
Cc: "David S. Miller" <davem@...emloft.net>, Eric Dumazet <edumazet@...gle.com>,
Jakub Kicinski <kuba@...nel.org>, Paolo Abeni <pabeni@...hat.com>,
Kuniyuki Iwashima <kuni1840@...il.com>, netdev@...r.kernel.org
Subject: Re: [PATCH v2 net-next 0/4] af_unix: Random improvements for GC.
On Wed, Nov 22, 2023 at 5:48 PM Kuniyuki Iwashima <kuniyu@...zon.com> wrote:
>
> If more than 16000 inflight AF_UNIX sockets exist on a host, each
> sendmsg() will be forced to wait for unix_gc() even if a process
> is not sending any FD.
>
> This series tries not to impose such a penalty on sane users.
>
>
> Changes:
> v2:
> Patch 4: Fix build error when CONFIG_UNIX=n (kernel test robot)
>
> v1: https://lore.kernel.org/netdev/20231122013629.28554-1-kuniyu@amazon.com/
>
>
> Kuniyuki Iwashima (4):
> af_unix: Do not use atomic ops for unix_sk(sk)->inflight.
> af_unix: Return struct unix_sock from unix_get_socket().
> af_unix: Run GC on only one CPU.
> af_unix: Try to run GC async.
>
> include/linux/io_uring.h | 4 +-
> include/net/af_unix.h | 6 +--
> include/net/scm.h | 1 +
> io_uring/io_uring.c | 5 ++-
> net/core/scm.c | 5 +++
> net/unix/af_unix.c | 10 +++--
> net/unix/garbage.c | 84 ++++++++++++++++++----------------------
> net/unix/scm.c | 34 ++++++++--------
> 8 files changed, 74 insertions(+), 75 deletions(-)
>
> --
> 2.30.2
>
LGTM. Not sure if reviewed-by is warranted from me, but you can at
least take tested-by.
Tested-by: Ivan Babrou <ivan@...udflare.com>
Thank you for working on it.
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