linux-kernel - Re: [PATCH 1/2] Revert "mm/kmemleak: move the initialisation of object to __link

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Message-ID: <CAMuHMdVZ_gEOkyYxhwROA209qimvy6CzwQtk6LGx9=7=ABUoMg@mail.gmail.com>
Date:   Wed, 15 Nov 2023 09:19:00 +0100
From:   Geert Uytterhoeven <geert@...ux-m68k.org>
To:     Liu Shixin <liushixin2@...wei.com>
Cc:     Catalin Marinas <catalin.marinas@....com>,
        Patrick Wang <patrick.wang.shcn@...il.com>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Kefeng Wang <wangkefeng.wang@...wei.com>, linux-mm@...ck.org,
        linux-kernel@...r.kernel.org,
        Linux-Renesas <linux-renesas-soc@...r.kernel.org>
Subject: Re: [PATCH 1/2] Revert "mm/kmemleak: move the initialisation of
 object to __link_object"

On Wed, Nov 15, 2023 at 8:23 AM Liu Shixin <liushixin2@...wei.com> wrote:
> Move the initialisation of object back to__alloc_object() because
> set_track_prepare() attempt to acquire zone->lock(spinlocks) while
> __link_object is holding kmemleak_lock(raw_spinlocks). This is not
> right for RT mode.
>
> This reverts commit 245245c2fffd0050772a3f30ba50e2be92537a32.
>
> Signed-off-by: Liu Shixin <liushixin2@...wei.com>

Reported-by: Geert Uytterhoeven <geert+renesas@...der.be>

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