diff options
| -rw-r--r-- | mm/mmap.c | 11 |
1 files changed, 8 insertions, 3 deletions
diff --git a/mm/mmap.c b/mm/mmap.c index 0fa87a5ae2cc..ac6e694c3b61 100644 --- a/mm/mmap.c +++ b/mm/mmap.c @@ -1612,6 +1612,11 @@ static void unmap_vma_list(struct mm_struct *mm, struct vm_area_struct *vma) validate_mm(mm); } +#ifndef FIRST_USER_ADDRESS /* temporary hack */ +#define THIS_IS_ARM FIRST_USER_PGD_NR +#define FIRST_USER_ADDRESS (THIS_IS_ARM * PAGE_SIZE) +#endif + /* * Get rid of page table information in the indicated region. * @@ -1630,7 +1635,7 @@ static void unmap_region(struct mm_struct *mm, tlb = tlb_gather_mmu(mm, 0); unmap_vmas(&tlb, mm, vma, start, end, &nr_accounted, NULL); vm_unacct_memory(nr_accounted); - free_pgtables(&tlb, vma, prev? prev->vm_end: 0, + free_pgtables(&tlb, vma, prev? prev->vm_end: FIRST_USER_ADDRESS, next? next->vm_start: 0); tlb_finish_mmu(tlb, start, end); spin_unlock(&mm->page_table_lock); @@ -1910,7 +1915,7 @@ void exit_mmap(struct mm_struct *mm) /* Use -1 here to ensure all VMAs in the mm are unmapped */ end = unmap_vmas(&tlb, mm, vma, 0, -1, &nr_accounted, NULL); vm_unacct_memory(nr_accounted); - free_pgtables(&tlb, vma, 0, 0); + free_pgtables(&tlb, vma, FIRST_USER_ADDRESS, 0); tlb_finish_mmu(tlb, 0, end); mm->mmap = mm->mmap_cache = NULL; @@ -1931,7 +1936,7 @@ void exit_mmap(struct mm_struct *mm) vma = next; } - BUG_ON(mm->nr_ptes); /* This is just debugging */ + BUG_ON(mm->nr_ptes > (FIRST_USER_ADDRESS+PMD_SIZE-1)>>PMD_SHIFT); } /* Insert vm structure into process list sorted by address |