* [PATCH] damon: vaddr-test: tweak code to make the logic clearer
@ 2022-03-28 11:29 Xiaomeng Tong
2022-03-28 11:42 ` sj
0 siblings, 1 reply; 3+ messages in thread
From: Xiaomeng Tong @ 2022-03-28 11:29 UTC (permalink / raw)
To: sj, akpm; +Cc: linux-mm, linux-kernel, Xiaomeng Tong
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
Signed-off-by: Xiaomeng Tong <xiam0nd.tong@gmail.com>
---
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
^ permalink raw reply related [flat|nested] 3+ messages in thread
* Re: [PATCH] damon: vaddr-test: tweak code to make the logic clearer
2022-03-28 11:29 [PATCH] damon: vaddr-test: tweak code to make the logic clearer Xiaomeng Tong
@ 2022-03-28 11:42 ` sj
0 siblings, 0 replies; 3+ messages in thread
From: sj @ 2022-03-28 11:42 UTC (permalink / raw)
To: Xiaomeng Tong; +Cc: sj, akpm, linux-mm, linux-kernel
On Mon, 28 Mar 2022 19:29:30 +0800 Xiaomeng Tong <xiam0nd.tong@gmail.com> 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 <xiam0nd.tong@gmail.com>
Other than the above trivial nit,
Reviewed-by: SeongJae Park <sj@kernel.org>
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
^ permalink raw reply [flat|nested] 3+ messages in thread
* [PATCH] damon: vaddr-test: tweak code to make the logic clearer
@ 2022-03-28 11:52 Xiaomeng Tong
0 siblings, 0 replies; 3+ messages in thread
From: Xiaomeng Tong @ 2022-03-28 11:52 UTC (permalink / raw)
To: sj, akpm; +Cc: linux-mm, linux-kernel, Xiaomeng Tong
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
Reviewed-by: SeongJae Park <sj@kernel.org>
Signed-off-by: Xiaomeng Tong <xiam0nd.tong@gmail.com>
---
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
^ permalink raw reply related [flat|nested] 3+ messages in thread
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2022-03-28 11:29 [PATCH] damon: vaddr-test: tweak code to make the logic clearer Xiaomeng Tong
2022-03-28 11:42 ` sj
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