[PATCH] mm: ptd_alloc take ptlock

[linux-2.6-block.git] / kernel / fork.c

diff --git a/kernel/fork.c b/kernel/fork.c
index 2a587b3224e3ccd0b0539b98bbde26609dbc3c46..8a069612eac39e285afc9bc9314311e5980ef536 100644 (file)
--- a/kernel/fork.c
+++ b/kernel/fork.c
@@ -255,7 +255,6 @@ static inline int dup_mmap(struct mm_struct *mm, struct mm_struct *oldmm)
                /*
                 * Link in the new vma and copy the page table entries.
                 */
-               spin_lock(&mm->page_table_lock);
                *pprev = tmp;
                pprev = &tmp->vm_next;
 
@@ -265,7 +264,6 @@ static inline int dup_mmap(struct mm_struct *mm, struct mm_struct *oldmm)
 
                mm->map_count++;
                retval = copy_page_range(mm, oldmm, tmp);
-               spin_unlock(&mm->page_table_lock);
 
                if (tmp->vm_ops && tmp->vm_ops->open)
                        tmp->vm_ops->open(tmp);