linux-kernel - Re: [PATCH] arch/m68k/kernel/sys_m68k: Add missing mmap_read_lock() to sys

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Message-ID: <CAMuHMdVM5XFnxbF=q2KH_1NRx5iyosb1xQ3co1VBakSmRgiNpw@mail.gmail.com>
Date:   Mon, 12 Apr 2021 09:24:06 +0200
From:   Geert Uytterhoeven <geert@...ux-m68k.org>
To:     Liam Howlett <liam.howlett@...cle.com>
Cc:     "linux-m68k@...ts.linux-m68k.org" <linux-m68k@...ts.linux-m68k.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        Laurent Dufour <ldufour@...ux.ibm.com>,
        Vlastimil Babka <vbabka@...e.cz>,
        Daniel Jordan <daniel.m.jordan@...cle.com>,
        Michel Lespinasse <walken@...gle.com>
Subject: Re: [PATCH] arch/m68k/kernel/sys_m68k: Add missing mmap_read_lock()
 to sys_cacheflush()

On Wed, Apr 7, 2021 at 10:00 PM Liam Howlett <liam.howlett@...cle.com> wrote:
> When the superuser flushes the entire cache, the mmap_read_lock() is not
> taken, but mmap_read_unlock() is called.  Add the missing
> mmap_read_lock() call.
>
> Signed-off-by: Liam R. Howlett <Liam.Howlett@...cle.com>

Reviewed-by: Geert Uytterhoeven <geert@...ux-m68k.org>
i.e. will queue in the m68k for-v5.13 branch.

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