linux-kernel - Re: [PATCH] docs: fault-injection: document cache-filter feature for failslab

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Message-ID: <87plqkrwns.fsf@trenco.lwn.net>
Date: Wed, 07 Aug 2024 12:54:31 -0600
From: Jonathan Corbet <corbet@....net>
To: Breno Leitao <leitao@...ian.org>, Akinobu Mita <akinobu.mita@...il.com>
Cc: kuba@...nel.org, "open list:DOCUMENTATION" <linux-doc@...r.kernel.org>,
 open list <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] docs: fault-injection: document cache-filter feature
 for failslab

Breno Leitao <leitao@...ian.org> writes:

> The failslab fault injection mechanism has an undocumented capability
> that provides significant utility in testing and debugging. This feature,
> introduced in commit 4c13dd3b48fcb ("failslab: add ability to filter slab
> caches"), allows for targeted error injection into specific slab caches.
>
> However, it was inadvertently left undocumented at the time of its
> implementation.
>
> Add documentation for the cache-filter feature in the failslab mode
> description. Also, providing a practical example demonstrating how to
> use cache-filter to inject failures specifically when allocating socket
> buffers (skbs).
>
> Signed-off-by: Breno Leitao <leitao@...ian.org>
> ---
>  .../fault-injection/fault-injection.rst       | 20 +++++++++++++++++++
>  1 file changed, 20 insertions(+)

I've applied this, thanks.

It seems to me that the fault-injection docs should really move under
dev-tools; does anybody object to that?

Thanks,

jon