linux-kernel - Re: [PATCH 1/5] arm64/vdso: use the fault callback to map vvar pages

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Message-ID: <c85bc366-dc23-a241-ed45-5110c0533a02@arm.com>
Date:   Thu, 20 Feb 2020 12:36:14 +0000
From:   Vincenzo Frascino <vincenzo.frascino@....com>
To:     Andrei Vagin <avagin@...il.com>
Cc:     linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        Thomas Gleixner <tglx@...utronix.de>,
        Dmitry Safonov <dima@...sta.com>
Subject: Re: [PATCH 1/5] arm64/vdso: use the fault callback to map vvar pages

Hi Andrei,

On 04/02/2020 17:59, Andrei Vagin wrote:
> This is required to support time namespaces where a time namespace data
> page is different for each namespace.
> 
> Signed-off-by: Andrei Vagin <avagin@...il.com>
> ---
[...]

> @@ -206,6 +210,8 @@ static int aarch32_vdso_mremap(const struct vm_special_mapping *sm,
>  #define C_SIGPAGE	1
>  #define C_PAGES		(C_SIGPAGE + 1)
>  #endif /* CONFIG_COMPAT_VDSO */
> +static vm_fault_t vvar_fault(const struct vm_special_mapping *sm,
> +		      struct vm_area_struct *vma, struct vm_fault *vmf);

I think you forgot to remove this one :)

[...]

-- 
Regards,
Vincenzo

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