diff options
Diffstat (limited to 'arch/s390/mm/pgtable.c')
| -rw-r--r-- | arch/s390/mm/pgtable.c | 15 |
1 files changed, 10 insertions, 5 deletions
diff --git a/arch/s390/mm/pgtable.c b/arch/s390/mm/pgtable.c index 796c9320c709..d7cfd57815fb 100644 --- a/arch/s390/mm/pgtable.c +++ b/arch/s390/mm/pgtable.c @@ -54,7 +54,7 @@ static void __crst_table_upgrade(void *arg) struct mm_struct *mm = arg; if (current->active_mm == mm) - update_mm(mm, current); + update_user_asce(mm, 1); __tlb_flush_local(); } @@ -107,8 +107,10 @@ void crst_table_downgrade(struct mm_struct *mm, unsigned long limit) { pgd_t *pgd; - if (current->active_mm == mm) + if (current->active_mm == mm) { + clear_user_asce(mm, 1); __tlb_flush_mm(mm); + } while (mm->context.asce_limit > limit) { pgd = mm->pgd; switch (pgd_val(*pgd) & _REGION_ENTRY_TYPE_MASK) { @@ -132,7 +134,7 @@ void crst_table_downgrade(struct mm_struct *mm, unsigned long limit) crst_table_free(mm, (unsigned long *) pgd); } if (current->active_mm == mm) - update_mm(mm, current); + update_user_asce(mm, 1); } #endif @@ -198,7 +200,7 @@ static int gmap_unlink_segment(struct gmap *gmap, unsigned long *table) static void gmap_flush_tlb(struct gmap *gmap) { if (MACHINE_HAS_IDTE) - __tlb_flush_idte((unsigned long) gmap->table | + __tlb_flush_asce(gmap->mm, (unsigned long) gmap->table | _ASCE_TYPE_REGION1); else __tlb_flush_global(); @@ -217,7 +219,7 @@ void gmap_free(struct gmap *gmap) /* Flush tlb. */ if (MACHINE_HAS_IDTE) - __tlb_flush_idte((unsigned long) gmap->table | + __tlb_flush_asce(gmap->mm, (unsigned long) gmap->table | _ASCE_TYPE_REGION1); else __tlb_flush_global(); @@ -505,6 +507,9 @@ static int gmap_connect_pgtable(unsigned long address, unsigned long segment, if (!pmd_present(*pmd) && __pte_alloc(mm, vma, pmd, vmaddr)) return -ENOMEM; + /* large pmds cannot yet be handled */ + if (pmd_large(*pmd)) + return -EFAULT; /* pmd now points to a valid segment table entry. */ rmap = kmalloc(sizeof(*rmap), GFP_KERNEL|__GFP_REPEAT); if (!rmap) |