On Mon, Jun 07, 2021 at 12:08:10PM +0100, Steven Price wrote: > From: Catalin Marinas <catalin.mari...@arm.com> > > Currently, on an anonymous page fault, the kernel allocates a zeroed > page and maps it in user space. If the mapping is tagged (PROT_MTE), > set_pte_at() additionally clears the tags under a spinlock to avoid a > race on the page->flags. In order to optimise the lock, clear the page > tags on allocation in __alloc_zeroed_user_highpage() if the vma flags > have VM_MTE set. > > Signed-off-by: Catalin Marinas <catalin.mari...@arm.com> > Signed-off-by: Steven Price <steven.pr...@arm.com>
I think you can drop this patch now that Peter's series has been queued via the arm64 tree: https://lore.kernel.org/r/20210602235230.3928842-4-...@google.com -- Catalin
