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266ee584e5
Pull arm64 fixes from Catalin Marinas: - Do not make a clean PTE dirty in pte_mkwrite() The Arm architecture, for backwards compatibility reasons (ARMv8.0 before in-hardware dirty bit management - DBM), uses the PTE_RDONLY bit to mean !dirty while the PTE_WRITE bit means DBM enabled. The arm64 pte_mkwrite() simply clears the PTE_RDONLY bit and this inadvertently makes the PTE pte_hw_dirty(). Most places making a PTE writable also invoke pte_mkdirty() but do_swap_page() does not and we end up with dirty, freshly swapped in, writeable pages. - Do not warn if the destination page is already MTE-tagged in copy_highpage() In the majority of the cases, a destination page copied into is freshly allocated without the PG_mte_tagged flag set. However, the folio migration may be restarted if __folio_migrate_mapping() failed, triggering the benign WARN_ON_ONCE(). * tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux: arm64: mte: Do not warn if the page is already tagged in copy_highpage() arm64, mm: avoid always making PTE dirty in pte_mkwrite()