Hi Thomas,
On 8/15/19 8:21 PM, Thomas Gleixner wrote:
> On Thu, 15 Aug 2019, Dmitry Safonov wrote:
>> ---
>> arch/Kconfig | 5 +++
>> arch/x86/Kconfig | 1 +
>> arch/x86/entry/vdso/vdso-layout.lds.S | 9 -
>> arch/x86/entry/vdso/vdso2c.c
On Thu, 15 Aug 2019, Dmitry Safonov wrote:
> ---
> arch/Kconfig | 5 +++
> arch/x86/Kconfig | 1 +
> arch/x86/entry/vdso/vdso-layout.lds.S | 9 -
> arch/x86/entry/vdso/vdso2c.c | 3 ++
> arch/x86/entry/vdso/vma.c | 12
From: Andrei Vagin
As modern applications fetch time from VDSO without entering the kernel,
it's needed to provide offsets for userspace code inside time namespace.
A page for timens offsets is allocated on time namespace construction.
Put that page into VVAR for tasks inside timens and zero
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