patch-2.1.106 linux/mm/mremap.c

• Lines: 15
• Date: Tue Jun 9 10:33:20 1998
• Orig file: v2.1.105/linux/mm/mremap.c
• Orig date: Tue Mar 10 10:03:36 1998

diff -u --recursive --new-file v2.1.105/linux/mm/mremap.c linux/mm/mremap.c
@@ -167,6 +167,7 @@
 	struct vm_area_struct *vma;
 	unsigned long ret = -EINVAL;
 
+	down(&current->mm->mmap_sem);
 	lock_kernel();
 	if (addr & ~PAGE_MASK)
 		goto out;
@@ -233,5 +234,6 @@
 		ret = -ENOMEM;
 out:
 	unlock_kernel();
+	up(&current->mm->mmap_sem);
 	return ret;
 }