flo: Put device-specific code behind #ifndef CONFIG_UML.

This is required to run net_test, which builds for ARCH=um.

Change-Id: I9329a3dbf68e788ecddf8c0ca12d0099508c8f52

kernel/exit.c

@@ -640,7 +640,9 @@ static void exit_mm(struct task_struct * tsk)
 {
 	struct mm_struct *mm = tsk->mm;
 	struct core_state *core_state;
+#ifndef CONFIG_UML
 	int mm_released;
+#endif
 
 	mm_release(tsk, mm);
 	if (!mm)
@@ -686,9 +688,11 @@ static void exit_mm(struct task_struct * tsk)
 	task_unlock(tsk);
 	mm_update_next_owner(mm);
 
+#ifndef CONFIG_UML
 	mm_released = mmput(mm);
 	if (mm_released)
 		set_tsk_thread_flag(tsk, TIF_MM_RELEASED);
+#endif
 }
 
 /*

kernel/printk.c

@@ -44,7 +44,10 @@
 
 #include <asm/uaccess.h>
 
+#ifdef CONFIG_MSM_RTB
 #include <mach/msm_rtb.h>
+#endif
+
 #define CREATE_TRACE_POINTS
 #include <trace/events/printk.h>
 

kernel/sched/core.c

@@ -1650,9 +1650,11 @@ stat:
 out:
 	raw_spin_unlock_irqrestore(&p->pi_lock, flags);
 
+#ifndef CONFIG_UML
 	if (src_cpu != cpu && task_notify_on_migrate(p))
 		atomic_notifier_call_chain(&migration_notifier_head,
 					   cpu, (void *)src_cpu);
+#endif
 	return success;
 }
 

lib/memory_alloc.c

@@ -186,10 +186,14 @@ static void *__alloc(struct mem_pool *mpool, unsigned long size,
 	if (!node)
 		goto out;
 
+#ifndef CONFIG_UML
 	if (cached)
 		vaddr = ioremap_cached(paddr, aligned_size);
 	else
 		vaddr = ioremap(paddr, aligned_size);
+#else
+	vaddr = NULL;  /* hack to allow this to compile on ARCH=um */
+#endif
 
 	if (!vaddr)
 		goto out_kfree;
@@ -206,8 +210,10 @@ static void *__alloc(struct mem_pool *mpool, unsigned long size,
 
 	return vaddr;
 out_kfree:
+#ifndef CONFIG_UML
 	if (vaddr)
 		iounmap(vaddr);
+#endif
 	kfree(node);
 out:
 	gen_pool_free(mpool->gpool, paddr, aligned_size);
@@ -221,8 +227,10 @@ static void __free(void *vaddr, bool unmap)
 	if (!node)
 		return;
 
+#ifndef CONFIG_UML
 	if (unmap)
 		iounmap(node->vaddr);
+#endif
 
 	gen_pool_free(node->mpool->gpool, node->paddr, node->len);
 	node->mpool->free += node->len;