Messages in this thread | | | From | Punit Agrawal <> | Subject | Re: [PATCH v3.1 4/6] mm/hugetlb: Allow architectures to override huge_pte_clear() | Date | Tue, 23 May 2017 15:53:10 +0100 |
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Arnd Bergmann <arnd@arndb.de> writes:
> On Mon, May 22, 2017 at 6:25 PM, Punit Agrawal <punit.agrawal@arm.com> 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@arm.com> >> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> >> Cc: Heiko Carstens <heiko.carstens@de.ibm.com> >> Cc: Arnd Bergmann <arnd@arndb.de> >> Cc: "Aneesh Kumar K.V" <aneesh.kumar@linux.vnet.ibm.com> >> Cc: Mike Kravetz <mike.kravetz@oracle.com> > > Acked-by: Arnd Bergmann <arnd@arndb.de>
Thanks, Arnd. I've applied the tag locally.
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