arm64/vdso: Handle faults on timens page
If a task belongs to a time namespace then the VVAR page which contains the system wide VDSO data is replaced with a namespace specific page which has the same layout as the VVAR page. Signed-off-by:Andrei Vagin <avagin@gmail.com> Reviewed-by:
Vincenzo Frascino <vincenzo.frascino@arm.com> Reviewed-by:
Dmitry Safonov <dima@arista.com> Link: https://lore.kernel.org/r/20200624083321.144975-5-avagin@gmail.comSigned-off-by:
Catalin Marinas <catalin.marinas@arm.com>
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