ia64: Sync with 2.5.30.

arch/ia64/kernel/perfmon.c

@@ -616,7 +616,7 @@ pfm_remove_smpl_mapping(struct task_struct *task)
 
 	down_write(&task->mm->mmap_sem);
 
-	r = do_munmap(task->mm, ctx->ctx_smpl_vaddr, psb->psb_size, 0);
+	r = do_munmap(task->mm, ctx->ctx_smpl_vaddr, psb->psb_size);
 
 	up_write(&task->mm->mmap_sem);
 	if (r !=0) {

arch/ia64/kernel/sys_ia64.c

@@ -119,7 +119,7 @@ ia64_brk (unsigned long brk, long arg1, long arg2, long arg3,
 
 	/* Always allow shrinking brk. */
 	if (brk <= mm->brk) {
-		if (!do_munmap(mm, newbrk, oldbrk-newbrk, 1))
+		if (!do_munmap(mm, newbrk, oldbrk-newbrk))
 			goto set_brk;
 		goto out;
 	}

arch/ia64/mm/init.c

@@ -164,7 +164,7 @@ free_initrd_mem (unsigned long start, unsigned long end)
 		page = virt_to_page(start);
 		ClearPageReserved(page);
 		set_page_count(page, 1);
-		free_page(page);
+		free_page(start);
 		++totalram_pages;
 	}
 }