2022-03-28 21:52:15

by SeongJae Park

[permalink] [raw]
Subject: Re: [PATCH] damon: vaddr-test: tweak code to make the logic clearer

On Mon, 28 Mar 2022 19:29:30 +0800 Xiaomeng Tong <[email protected]> wrote:

> Move these two lines into the damon_for_each_region loop, it is always
> for testing the last region. And also avoid to use a list iterator 'r'
> outside the loop which is considered harmful[1].
>
> [1]: https://lkml.org/lkml/2022/2/17/1032

Let's have one empty line here[1].

[1] https://www.kernel.org/doc/html/v4.17/process/submitting-patches.html#the-canonical-patch-format

> Signed-off-by: Xiaomeng Tong <[email protected]>

Other than the above trivial nit,

Reviewed-by: SeongJae Park <[email protected]>


Thanks,
SJ

> ---
> mm/damon/vaddr-test.h | 8 +++++---
> 1 file changed, 5 insertions(+), 3 deletions(-)
>
> diff --git a/mm/damon/vaddr-test.h b/mm/damon/vaddr-test.h
> index 6a1b9272ea12..98b7a9f54b35 100644
> --- a/mm/damon/vaddr-test.h
> +++ b/mm/damon/vaddr-test.h
> @@ -281,14 +281,16 @@ static void damon_test_split_evenly_succ(struct kunit *test,
> KUNIT_EXPECT_EQ(test, damon_nr_regions(t), nr_pieces);
>
> damon_for_each_region(r, t) {
> - if (i == nr_pieces - 1)
> + if (i == nr_pieces - 1) {
> + KUNIT_EXPECT_EQ(test,
> + r->ar.start, start + i * expected_width);
> + KUNIT_EXPECT_EQ(test, r->ar.end, end);
> break;
> + }
> KUNIT_EXPECT_EQ(test,
> r->ar.start, start + i++ * expected_width);
> KUNIT_EXPECT_EQ(test, r->ar.end, start + i * expected_width);
> }
> - KUNIT_EXPECT_EQ(test, r->ar.start, start + i * expected_width);
> - KUNIT_EXPECT_EQ(test, r->ar.end, end);
> damon_free_target(t);
> }
>
> --
> 2.17.1