linux-kernel - Re: [RFC PATCH v2 7/7] tools: add skeleton code for userland testing of VMA logic

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Date: Tue,  2 Jul 2024 16:25:16 -0700
From: SeongJae Park <sj@...nel.org>
To: Lorenzo Stoakes <lstoakes@...il.com>
Cc: SeongJae Park <sj@...nel.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	linux-fsdevel@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	linux-mm@...ck.org,
	"Liam R . Howlett" <Liam.Howlett@...cle.com>,
	Vlastimil Babka <vbabka@...e.cz>,
	Matthew Wilcox <willy@...radead.org>,
	Alexander Viro <viro@...iv.linux.org.uk>,
	Christian Brauner <brauner@...nel.org>,
	Jan Kara <jack@...e.cz>,
	Eric Biederman <ebiederm@...ssion.com>,
	Kees Cook <kees@...nel.org>,
	Suren Baghdasaryan <surenb@...gle.com>
Subject: Re: [RFC PATCH v2 7/7] tools: add skeleton code for userland testing of VMA logic

Hi Lorenzo,

On Fri, 28 Jun 2024 15:35:28 +0100 Lorenzo Stoakes <lstoakes@...il.com> wrote:

> Establish a new userland VMA unit testing implementation under
> tools/testing which utilises existing logic providing maple tree support in
> userland utilising the now-shared code previously exclusive to radix tree
> testing.
> 
> This provides fundamental VMA operations whose API is defined in mm/vma.h,
> while stubbing out superfluous functionality.
> 
> This exists as a proof-of-concept, with the test implementation functional
> and sufficient to allow userland compilation of vma.c, but containing only
> cursory tests to demonstrate basic functionality.
> 
> Signed-off-by: Lorenzo Stoakes <lstoakes@...il.com>
> ---
>  MAINTAINERS                            |   1 +
>  include/linux/atomic.h                 |   2 +-
>  include/linux/mmzone.h                 |   3 +-
>  tools/testing/vma/.gitignore           |   6 +
>  tools/testing/vma/Makefile             |  15 +
>  tools/testing/vma/errors.txt           |   0
>  tools/testing/vma/generated/autoconf.h |   2 +
>  tools/testing/vma/linux/atomic.h       |  12 +
>  tools/testing/vma/linux/mmzone.h       |  38 ++
>  tools/testing/vma/vma.c                | 207 ++++++
>  tools/testing/vma/vma_internal.h       | 882 +++++++++++++++++++++++++
>  11 files changed, 1166 insertions(+), 2 deletions(-)
>  create mode 100644 tools/testing/vma/.gitignore
>  create mode 100644 tools/testing/vma/Makefile
>  create mode 100644 tools/testing/vma/errors.txt
>  create mode 100644 tools/testing/vma/generated/autoconf.h
>  create mode 100644 tools/testing/vma/linux/atomic.h
>  create mode 100644 tools/testing/vma/linux/mmzone.h
>  create mode 100644 tools/testing/vma/vma.c
>  create mode 100644 tools/testing/vma/vma_internal.h
> 
> diff --git a/MAINTAINERS b/MAINTAINERS
> index 0847cb5903ab..410062bd8e21 100644
> --- a/MAINTAINERS
> +++ b/MAINTAINERS
> @@ -23983,6 +23983,7 @@ T:	git git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
>  F:	mm/vma.c
>  F:	mm/vma.h
>  F:	mm/vma_internal.h
> +F:	tools/testing/vma

According to the description of 'F:' section description at the beginning of
this file (quoting below), I think adding a trailing slash to the above line
would be nice?

        F: *Files* and directories wildcard patterns.
           A trailing slash includes all files and subdirectory files.
           F:   drivers/net/    all files in and below drivers/net


Thanks,
SJ

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