• Catalin Marinas's avatar
    arm64: Move PTE_RDONLY bit handling out of set_pte_at() · 73e86cb0
    Catalin Marinas authored
    Currently PTE_RDONLY is treated as a hardware only bit and not handled
    by the pte_mkwrite(), pte_wrprotect() or the user PAGE_* definitions.
    The set_pte_at() function is responsible for setting this bit based on
    the write permission or dirty state. This patch moves the PTE_RDONLY
    handling out of set_pte_at into the pte_mkwrite()/pte_wrprotect()
    functions. The PAGE_* definitions to need to be updated to explicitly
    include PTE_RDONLY when !PTE_WRITE.
    The patch also removes the redundant PAGE_COPY(_EXEC) definitions as
    they are identical to the corresponding PAGE_READONLY(_EXEC).
    Reviewed-by: default avatarWill Deacon <will.deacon@arm.com>
    Signed-off-by: default avatarCatalin Marinas <catalin.marinas@arm.com>
hibernate.c 14.2 KB