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Message-ID: <CAMuHMdVtHXnm0EvPV7tVMeF7Z9JEhjyKMmg19aS3hdj2qRDhWw@mail.gmail.com>
Date: Tue, 11 Jul 2023 12:10:32 +0200
From: Geert Uytterhoeven <geert@...ux-m68k.org>
To: Peng Zhang <zhangpeng.00@...edance.com>
Cc: Liam.Howlett@...cle.com, akpm@...ux-foundation.org,
linux-mm@...ck.org, linux-kernel@...r.kernel.org,
maple-tree@...ts.infradead.org
Subject: Re: [PATCH v2 0/8] Improve the validation for maple tree and some cleanup
Hi Peng,
On Tue, Jul 11, 2023 at 5:56 AM Peng Zhang <zhangpeng.00@...edance.com> wrote:
> These patches do the following:
> 001 - 002: Small cleanup to maple tree.
> 003 - 006: Improve the validation for maple tree.
> 007 - 008: Drop some functions that will no longer be used.
>
> Thanks Liam for the review.
>
> Changes since v1:
> - Add fixes tag and the necessary Cc. [1/8]
> - Add the verification that gaps beyond the node limit are zero. [3/8]
> - Revise comment. [5/8]
> - Reformat the code. [6/8]
>
> Peng Zhang (8):
> maple_tree: set the node limit when creating a new root node
> maple_tree: don't use MAPLE_ARANGE64_META_MAX to indicate no gap
> maple_tree: make mas_validate_gaps() to check metadata
> maple_tree: fix mas_validate_child_slot() to check last missed slot
> maple_tree: make mas_validate_limits() check root node and node limit
> maple_tree: update mt_validate()
> maple_tree: replace mas_logical_pivot() with mas_safe_pivot()
> maple_tree: drop mas_first_entry()
>
> include/linux/maple_tree.h | 2 -
> lib/maple_tree.c | 258 ++++++++++++-------------------------
> 2 files changed, 79 insertions(+), 181 deletions(-)
Thanks for your series!
I gave it a try with test_maple_tree on m68k/ARAnyM, and the net
impact is:
TEST STARTING
BUG at next_prev_test:2014 (1)
Pass: 3749128 Run:3749129
-BUG at check_empty_area_window:2655 (1)
-Pass: 3754275 Run:3754277
-BUG at check_empty_area_window:2656 (1)
-Pass: 3754275 Run:3754278
-BUG at check_empty_area_window:2657 (1)
-Pass: 3754275 Run:3754279
-BUG at check_empty_area_window:2661 (1)
-Pass: 3754275 Run:3754280
-BUG at check_empty_area_window:2662 (1)
-Pass: 3754275 Run:3754281
-maple_tree: 3804518 of 3804524 tests passed
+maple_tree: 3804523 of 3804524 tests passed
So only one bug left to squash ;-)
Tested-by: Geert Uytterhoeven <geert@...ux-m68k.org>
Gr{oetje,eeting}s,
Geert
--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@...ux-m68k.org
In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
-- Linus Torvalds
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