linux-kernel - Re: [PATCH net-next 2/6] selftests: net: lib: remove ns from list after clean-up

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Message-ID: <20240614104006.GC8447@kernel.org>
Date: Fri, 14 Jun 2024 11:40:06 +0100
From: Simon Horman <horms@...nel.org>
To: "Matthieu Baerts (NGI0)" <matttbe@...nel.org>
Cc: mptcp@...ts.linux.dev, "David S. Miller" <davem@...emloft.net>,
	Eric Dumazet <edumazet@...gle.com>,
	Jakub Kicinski <kuba@...nel.org>, Paolo Abeni <pabeni@...hat.com>,
	Shuah Khan <shuah@...nel.org>, Mat Martineau <martineau@...nel.org>,
	Geliang Tang <geliang@...nel.org>, netdev@...r.kernel.org,
	linux-kselftest@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH net-next 2/6] selftests: net: lib: remove ns from list
 after clean-up

On Fri, Jun 07, 2024 at 06:31:03PM +0200, Matthieu Baerts (NGI0) wrote:
> Instead of only appending items to the list, removing them when the
> netns has been deleted.
> 
> By doing that, we can make sure 'cleanup_all_ns()' is not trying to
> remove already deleted netns.
> 
> Reviewed-by: Geliang Tang <geliang@...nel.org>
> Signed-off-by: Matthieu Baerts (NGI0) <matttbe@...nel.org>

Hi Matthieu,

I like this, and I am happy to see that it has been accepted.

I do wonder if we can go a step further and use an associative array for
ns_list (maybe renamed).  I think this would reduce remove_ns_list to
something like:

	unset ns_list["$item"]

OTOH, perhaps this breaks with older versions of bash that we still
care about.

...