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| author | Ingo Molnar <mingo@kernel.org> | 2015-03-05 20:52:18 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2015-03-05 20:52:18 +0100 |
| commit | 33ca8a53f262b4af40611bea331b8c87d133af72 (patch) | |
| tree | d6468c820a556c4915bcb5b761204a0fb19e8225 /arch/powerpc/mm/pgtable.c | |
| parent | db2dcb4f91d5fec5c346a82c309187ee821e2495 (diff) | |
| parent | 13a7a6ac0a11197edcd0f756a035f472b42cdf8b (diff) | |
Merge tag 'v4.0-rc2' into irq/core, to refresh the tree before applying new changes
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'arch/powerpc/mm/pgtable.c')
| -rw-r--r-- | arch/powerpc/mm/pgtable.c | 11 |
1 files changed, 8 insertions, 3 deletions
diff --git a/arch/powerpc/mm/pgtable.c b/arch/powerpc/mm/pgtable.c index c90e602677c9..83dfcb55ffef 100644 --- a/arch/powerpc/mm/pgtable.c +++ b/arch/powerpc/mm/pgtable.c @@ -172,9 +172,14 @@ static pte_t set_access_flags_filter(pte_t pte, struct vm_area_struct *vma, void set_pte_at(struct mm_struct *mm, unsigned long addr, pte_t *ptep, pte_t pte) { -#ifdef CONFIG_DEBUG_VM - WARN_ON(pte_val(*ptep) & _PAGE_PRESENT); -#endif + /* + * When handling numa faults, we already have the pte marked + * _PAGE_PRESENT, but we can be sure that it is not in hpte. + * Hence we can use set_pte_at for them. + */ + VM_WARN_ON((pte_val(*ptep) & (_PAGE_PRESENT | _PAGE_USER)) == + (_PAGE_PRESENT | _PAGE_USER)); + /* Note: mm->context.id might not yet have been assigned as * this context might not have been activated yet when this * is called. |