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Date: Mon, 29 Apr 2024 08:56:56 -0700
From: Kees Cook <keescook@chromium.org>
To: =?iso-8859-1?Q?Micka=EBl_Sala=FCn?= <mic@digikod.net>
Cc: Christian Brauner <brauner@kernel.org>,
	Jakub Kicinski <kuba@kernel.org>, Mark Brown <broonie@kernel.org>,
	Shengyu Li <shengyu.li.evgeny@gmail.com>,
	Shuah Khan <shuah@kernel.org>,
	"David S . Miller" <davem@davemloft.net>,
	=?iso-8859-1?Q?G=FCnther?= Noack <gnoack@google.com>,
	Will Drewry <wad@chromium.org>,
	kernel test robot <oliver.sang@intel.com>,
	linux-kernel@vger.kernel.org, linux-kselftest@vger.kernel.org,
	Shuah Khan <skhan@linuxfoundation.org>
Subject: Re: [PATCH v2 8/9] selftests/harness: Share _metadata between forked
 processes
Message-ID: <202404290856.494B7F8A@keescook>
References: <20240429130931.2394118-1-mic@digikod.net>
 <20240429130931.2394118-9-mic@digikod.net>
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In-Reply-To: <20240429130931.2394118-9-mic@digikod.net>

On Mon, Apr 29, 2024 at 03:09:30PM +0200, Micka?l Sala?n wrote:
> Unconditionally share _metadata between all forked processes, which
> enables to actually catch errors which were previously ignored.
> 
> This is required for a following commit replacing vfork() with clone3()
> and CLONE_VFORK (i.e. not sharing the full memory) .  It should also be
> useful to share _metadata to extend expectations to test process's
> forks.  For instance, this change identified a wrong expectation in
> pidfd_setns_test.
> 
> Cc: Jakub Kicinski <kuba@kernel.org>
> Cc: Kees Cook <keescook@chromium.org>
> Cc: Shuah Khan <skhan@linuxfoundation.org>
> Cc: Will Drewry <wad@chromium.org>
> Signed-off-by: Micka?l Sala?n <mic@digikod.net>

Reviewed-by: Kees Cook <keescook@chromium.org>

-- 
Kees Cook