Arnd Bergmann <arnd@xxxxxxxx> writes: > On Mon, May 22, 2017 at 6:25 PM, Punit Agrawal <punit.agrawal@xxxxxxx> wrote: >> When unmapping a hugepage range, huge_pte_clear() is used to clear the >> page table entries that are marked as not present. huge_pte_clear() >> internally just ends up calling pte_clear() which does not correctly >> deal with hugepages consisting of contiguous page table entries. >> >> Add a size argument to address this issue and allow architectures to >> override huge_pte_clear() by wrapping it in a #ifndef block. >> >> Update s390 implementation with the size parameter as well. >> >> Note that the change only affects huge_pte_clear() - the other generic >> hugetlb functions don't need any change. >> >> Signed-off-by: Punit Agrawal <punit.agrawal@xxxxxxx> >> Cc: Martin Schwidefsky <schwidefsky@xxxxxxxxxx> >> Cc: Heiko Carstens <heiko.carstens@xxxxxxxxxx> >> Cc: Arnd Bergmann <arnd@xxxxxxxx> >> Cc: "Aneesh Kumar K.V" <aneesh.kumar@xxxxxxxxxxxxxxxxxx> >> Cc: Mike Kravetz <mike.kravetz@xxxxxxxxxx> > > Acked-by: Arnd Bergmann <arnd@xxxxxxxx> Thanks, Arnd. I've applied the tag locally. > > -- > To unsubscribe, send a message with 'unsubscribe linux-mm' in > the body to majordomo@xxxxxxxxx. For more info on Linux MM, > see: http://www.linux-mm.org/ . > Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>
