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-rw-r--r--arch/sparc64/mm/generic.c9
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;
}