• Aneesh Kumar K.V's avatar
    powerpc/mm: Rename find_linux_pte_or_hugepte() · 94171b19
    Aneesh Kumar K.V authored
    Add newer helpers to make the function usage simpler. It is always
    recommended to use find_current_mm_pte() for walking the page table.
    If we cannot use find_current_mm_pte(), it should be documented why
    the said usage of __find_linux_pte() is safe against a parallel THP
    split.
    
    For now we have KVM code using __find_linux_pte(). This is because kvm
    code ends up calling __find_linux_pte() in real mode with MSR_EE=0 but
    with PACA soft_enabled = 1. We may want to fix that later and make
    sure we keep the MSR_EE and PACA soft_enabled in sync. When we do that
    we can switch kvm to use find_linux_pte().
    Signed-off-by: default avatarAneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
    Signed-off-by: default avatarMichael Ellerman <mpe@ellerman.id.au>
    94171b19
io-workarounds.c 4.74 KB