diff options
Diffstat (limited to 'arch/sparc64/mm/generic.c')
| -rw-r--r-- | arch/sparc64/mm/generic.c | 9 |
1 files changed, 5 insertions, 4 deletions
diff --git a/arch/sparc64/mm/generic.c b/arch/sparc64/mm/generic.c index c954d91f01d..112c316e7cd 100644 --- a/arch/sparc64/mm/generic.c +++ b/arch/sparc64/mm/generic.c @@ -127,14 +127,16 @@ int io_remap_pfn_range(struct vm_area_struct *vma, unsigned long from, int space = GET_IOSPACE(pfn); unsigned long offset = GET_PFN(pfn) << PAGE_SHIFT; + /* See comment in mm/memory.c remap_pfn_range */ + vma->vm_flags |= VM_IO | VM_RESERVED; + prot = __pgprot(pg_iobits); offset -= from; dir = pgd_offset(mm, from); flush_cache_range(vma, beg, end); - spin_lock(&mm->page_table_lock); while (from < end) { - pud_t *pud = pud_alloc(current->mm, dir, from); + pud_t *pud = pud_alloc(mm, dir, from); error = -ENOMEM; if (!pud) break; @@ -144,8 +146,7 @@ int io_remap_pfn_range(struct vm_area_struct *vma, unsigned long from, from = (from + PGDIR_SIZE) & PGDIR_MASK; dir++; } - flush_tlb_range(vma, beg, end); - spin_unlock(&mm->page_table_lock); + flush_tlb_range(vma, beg, end); return error; } |