Re: [PATCH v2 2/2] [PATCH 2/2] mm: add merging after mremap resize

[Jakub Matěna]

On Mon, May 30, 2022 at 1:47 AM Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> wrote:
>
> On Fri, 27 May 2022 23:17:08 +0200 Jakub Matěna <matenajakub@xxxxxxxxx> wrote:
>
> > When mremap call results in expansion, it might be possible to merge the
> > VMA with the next VMA which might become adjacent. This patch adds
> > vma_merge call after the expansion is done to try and merge.
>
> Thanks.
>
> Would it make sense to add a test case for this in (I assume)
> tools/testing/selftests/vm/mremap_test.c?  Maybe parse /proc/self/maps
> and check that the merging occurred as expected?
>

It shouldn't be a problem and it makes sense. I will do it.

Jakub Matěna