linux-kernel - Re: [PATCH v2 5/5] docs: automarkup.py: Allow automatic cross-reference inside C namespace

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Message-ID: <20201014131900.1137cdc8@lwn.net>
Date:   Wed, 14 Oct 2020 13:19:00 -0600
From:   Jonathan Corbet <corbet@....net>
To:     Mauro Carvalho Chehab <mchehab+huawei@...nel.org>
Cc:     "Nícolas F. R. A. Prado" <nfraprado@...tonmail.com>,
        linux-doc@...r.kernel.org, linux-kernel@...r.kernel.org,
        lkcamp@...ts.libreplanetbr.org, andrealmeid@...labora.com
Subject: Re: [PATCH v2 5/5] docs: automarkup.py: Allow automatic
 cross-reference inside C namespace

On Wed, 14 Oct 2020 11:56:44 +0200
Mauro Carvalho Chehab <mchehab+huawei@...nel.org> wrote:

> > To make the first step possible, disable the parallel_read_safe option
> > in Sphinx, since the dictionary that maps the files to the C namespaces
> > can't be concurrently updated. This unfortunately increases the build
> > time of the documentation.  
> 
> Disabling parallel_read_safe will make performance very poor.
> Doesn't the C domain store the current namespace somewhere?
> If so, then, instead of using the source-read phase, something
> else could be used instead.

That seems like the best solution if it exists, yes.  Otherwise a simple
lock could be used around c_namespace to serialize access there, right?

Thanks,

jon