linux-kernel - Re: [PATCH v2 4/7] mm: move internal core VMA manipulation functions to own file

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Message-ID: <upsnyynhrw2pgxswt5hzg2ptpscujtugkznwgighza4qth3fpt@xl6q3condu67>
Date: Tue, 9 Jul 2024 09:12:20 -0400
From: "Liam R. Howlett" <Liam.Howlett@...cle.com>
To: Lorenzo Stoakes <lorenzo.stoakes@...cle.com>
Cc: Andrew Morton <akpm@...ux-foundation.org>, linux-fsdevel@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-mm@...ck.org,
        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>, SeongJae Park <sj@...nel.org>,
        Shuah Khan <shuah@...nel.org>,
        Brendan Higgins <brendanhiggins@...gle.com>,
        David Gow <davidgow@...gle.com>, Rae Moar <rmoar@...gle.com>
Subject: Re: [PATCH v2 4/7] mm: move internal core VMA manipulation functions
 to own file

* Lorenzo Stoakes <lorenzo.stoakes@...cle.com> [240704 15:28]:
> This patch introduces vma.c and moves internal core VMA manipulation
> functions to this file from mmap.c.
> 
> This allows us to isolate VMA functionality in a single place such that we
> can create userspace testing code that invokes this functionality in an
> environment where we can implement simple unit tests of core functionality.
> 
> This patch ensures that core VMA functionality is explicitly marked as such
> by its presence in mm/vma.h.
> 
> It also places the header includes required by vma.c in vma_internal.h,
> which is simply imported by vma.c. This makes the VMA functionality
> testable, as userland testing code can simply stub out functionality
> as required.
> 
> Signed-off-by: Lorenzo Stoakes <lorenzo.stoakes@...cle.com>

Reviewed-by: Liam R. Howlett <Liam.Howlett@...cle.com>