Hello Liam,
On Fri, 20 Jan 2023 11:26:31 -0500 "Liam R. Howlett" <Liam.Howlett@xxxxxxxxxx> wrote:
> Prepare for the removal of the vma_mas_store() function by open coding
> the maple tree store in this test code. Set the range of the maple
> state and call the store function directly.
>
> Cc: SeongJae Park <sj@xxxxxxxxxx>
> Cc: damon@xxxxxxxxxxxxxxx
> Reported-by: kernel test robot <lkp@xxxxxxxxx>
> Signed-off-by: Liam R. Howlett <Liam.Howlett@xxxxxxxxxx>
Reviewed-by: SeongJae Park <sj@xxxxxxxxxx>
Thanks,
SJ
> ---
> mm/damon/vaddr-test.h | 20 ++++++++++++++------
> 1 file changed, 14 insertions(+), 6 deletions(-)
>
> diff --git a/mm/damon/vaddr-test.h b/mm/damon/vaddr-test.h
> index bce37c487540..c4b455b5ee30 100644
> --- a/mm/damon/vaddr-test.h
> +++ b/mm/damon/vaddr-test.h
> @@ -14,19 +14,26 @@
>
> #include <kunit/test.h>
>
> -static void __link_vmas(struct maple_tree *mt, struct vm_area_struct *vmas,
> +static int __link_vmas(struct maple_tree *mt, struct vm_area_struct *vmas,
> ssize_t nr_vmas)
> {
> - int i;
> + int i, ret = -ENOMEM;
> MA_STATE(mas, mt, 0, 0);
>
> if (!nr_vmas)
> - return;
> + return 0;
>
> mas_lock(&mas);
> - for (i = 0; i < nr_vmas; i++)
> - vma_mas_store(&vmas[i], &mas);
> + for (i = 0; i < nr_vmas; i++) {
> + mas_set_range(&mas, vmas[i].vm_start, vmas[i].vm_end - 1);
> + if (mas_store_gfp(&mas, &vmas[i], GFP_KERNEL))
> + goto failed;
> + }
> +
> + ret = 0;
> +failed:
> mas_unlock(&mas);
> + return ret;
> }
>
> /*
> @@ -71,7 +78,8 @@ static void damon_test_three_regions_in_vmas(struct kunit *test)
> };
>
> mt_init_flags(&mm.mm_mt, MM_MT_FLAGS);
> - __link_vmas(&mm.mm_mt, vmas, ARRAY_SIZE(vmas));
> + if (__link_vmas(&mm.mm_mt, vmas, ARRAY_SIZE(vmas)))
> + kunit_skip(test, "Failed to create VMA tree");
>
> __damon_va_three_regions(&mm, regions);
>
> --
> 2.35.1
>
>
