linux-kernel - Re: [PATCH 2/4] mm: make vma_merge() and split

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Message-ID: <3b46dabf-b9d8-46bc-8cec-3b7aa3b7a609@lucifer.local>
Date:   Mon, 9 Oct 2023 19:20:36 +0100
From:   Lorenzo Stoakes <lstoakes@...il.com>
To:     Vlastimil Babka <vbabka@...e.cz>
Cc:     linux-mm@...ck.org, linux-kernel@...r.kernel.org,
        Andrew Morton <akpm@...ux-foundation.org>,
        Alexander Viro <viro@...iv.linux.org.uk>,
        Christian Brauner <brauner@...nel.org>,
        "=Liam R . Howlett" <Liam.Howlett@...cle.com>,
        linux-fsdevel@...r.kernel.org
Subject: Re: [PATCH 2/4] mm: make vma_merge() and split_vma() internal

On Mon, Oct 09, 2023 at 05:45:26PM +0200, Vlastimil Babka wrote:
> On 10/8/23 22:23, Lorenzo Stoakes wrote:
> > Now the vma_merge()/split_vma() pattern has been abstracted, we use it
>
> "it" refers to split_vma() only so "the latter" or "split_vma()"?
>

I mean to say the pattern of attempting vma_merge(), then if that fails,
splitting as necessary. I will try to clarify the language in v2.

> > entirely internally within mm/mmap.c, so make the function static. We also
> > no longer need vma_merge() anywhere else except mm/mremap.c, so make it
> > internal.
> >
> > In addition, the split_vma() nommu variant also need not be exported.
> >
> > Signed-off-by: Lorenzo Stoakes <lstoakes@...il.com>
>
> Reviewed-by: Vlastimil Babka <vbabka@...e.cz>
>

Thanks!