7b868e81be
We need to check whether pte is present in follow_huge_addr() and properly return NULL if mapping is not present. Also use READ_ONCE when dereferencing pte_t address. Without this patch, we may wrongly return a zero pfn page in follow_huge_addr(). Reviewed-by: David Gibson <david@gibson.dropbear.id.au> Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> |
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| .. | ||
| 40x_mmu.c | ||
| 44x_mmu.c | ||
| Makefile | ||
| copro_fault.c | ||
| dma-noncoherent.c | ||
| fault.c | ||
| fsl_booke_mmu.c | ||
| hash_low_32.S | ||
| hash_low_64.S | ||
| hash_native_64.c | ||
| hash_utils_64.c | ||
| highmem.c | ||
| hugepage-hash64.c | ||
| hugetlbpage-book3e.c | ||
| hugetlbpage-hash64.c | ||
| hugetlbpage.c | ||
| icswx.c | ||
| icswx.h | ||
| icswx_pid.c | ||
| init_32.c | ||
| init_64.c | ||
| mem.c | ||
| mmap.c | ||
| mmu_context_hash32.c | ||
| mmu_context_hash64.c | ||
| mmu_context_nohash.c | ||
| mmu_decl.h | ||
| numa.c | ||
| pgtable.c | ||
| pgtable_32.c | ||
| pgtable_64.c | ||
| ppc_mmu_32.c | ||
| slb.c | ||
| slb_low.S | ||
| slice.c | ||
| subpage-prot.c | ||
| tlb_hash32.c | ||
| tlb_hash64.c | ||
| tlb_low_64e.S | ||
| tlb_nohash.c | ||
| tlb_nohash_low.S | ||
| vphn.c | ||
| vphn.h | ||