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authorNicholas Piggin <npiggin@gmail.com>2019-07-24 18:46:35 +1000
committerMichael Ellerman <mpe@ellerman.id.au>2019-08-20 21:22:19 +1000
commit31f210cf42d4b308eacef89b6cb0b1459338b8de (patch)
tree023cb9597d5b128a96bb71219914e0885d9d5d17 /arch
parent8f51e3929470942e6a8744061254fdeef646cd36 (diff)
powerpc/64s/radix: Fix memory hot-unplug page table split
create_physical_mapping expects physical addresses, but splitting these mapping on hot unplug is supplying virtual (effective) addresses. Fixes: 4dd5f8a99e791 ("powerpc/mm/radix: Split linear mapping on hot-unplug") Signed-off-by: Nicholas Piggin <npiggin@gmail.com> Reviewed-by: Aneesh Kumar K.V <aneesh.kumar@linux.ibm.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/20190724084638.24982-2-npiggin@gmail.com
Diffstat (limited to 'arch')
-rw-r--r--arch/powerpc/mm/book3s64/radix_pgtable.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/arch/powerpc/mm/book3s64/radix_pgtable.c b/arch/powerpc/mm/book3s64/radix_pgtable.c
index c5cc16ab1954..2204d8eeb784 100644
--- a/arch/powerpc/mm/book3s64/radix_pgtable.c
+++ b/arch/powerpc/mm/book3s64/radix_pgtable.c
@@ -737,8 +737,8 @@ static int __meminit stop_machine_change_mapping(void *data)
spin_unlock(&init_mm.page_table_lock);
pte_clear(&init_mm, params->aligned_start, params->pte);
- create_physical_mapping(params->aligned_start, params->start, -1);
- create_physical_mapping(params->end, params->aligned_end, -1);
+ create_physical_mapping(__pa(params->aligned_start), __pa(params->start), -1);
+ create_physical_mapping(__pa(params->end), __pa(params->aligned_end), -1);
spin_lock(&init_mm.page_table_lock);
return 0;
}