| Date | Mon, 10 Jun 2019 15:29:34 +0100 | From | Catalin Marinas <> | Subject | Re: [PATCH v16 07/16] mm, arm64: untag user pointers in get_vaddr_frames |
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On Mon, Jun 03, 2019 at 06:55:09PM +0200, Andrey Konovalov wrote: > This patch is a part of a series that extends arm64 kernel ABI to allow to > pass tagged user pointers (with the top byte set to something else other > than 0x00) as syscall arguments. > > get_vaddr_frames uses provided user pointers for vma lookups, which can > only by done with untagged pointers. Instead of locating and changing > all callers of this function, perform untagging in it. > > Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
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