Searched hist:f02ab08afbe76ee7b0b2a34a9970e7dd200d8b01 (Results 1 – 1 of 1) sorted by relevance
/linux/arch/arm64/mm/ |
H A D | hugetlbpage.c | diff f02ab08afbe76ee7b0b2a34a9970e7dd200d8b01 Thu Jun 08 19:25:26 CEST 2017 Punit Agrawal <punit.agrawal@arm.com> arm64: hugetlb: Fix huge_pte_offset to return poisoned page table entries
When memory failure is enabled, a poisoned hugepage pte is marked as a swap entry. huge_pte_offset() does not return the poisoned page table entries when it encounters PUD/PMD hugepages.
This behaviour of huge_pte_offset() leads to error such as below when munmap is called on poisoned hugepages.
[ 344.165544] mm/pgtable-generic.c:33: bad pmd 000000083af00074.
Fix huge_pte_offset() to return the poisoned pte which is then appropriately handled by the generic layer code.
Signed-off-by: Punit Agrawal <punit.agrawal@arm.com> Acked-by: Steve Capper <steve.capper@arm.com> Reviewed-by: Catalin Marinas <catalin.marinas@arm.com> Cc: David Woods <dwoods@mellanox.com> Tested-by: Manoj Iyer <manoj.iyer@canonical.com> Signed-off-by: Will Deacon <will.deacon@arm.com>
|