From 04dd17822334871b23ea2862f7798fb0e0007777 Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Sat, 11 May 2024 08:53:19 +0000
Subject: [PATCH] change otg to host mode
---
kernel/arch/um/include/asm/mmu_context.h | 13 ++++---------
1 files changed, 4 insertions(+), 9 deletions(-)
diff --git a/kernel/arch/um/include/asm/mmu_context.h b/kernel/arch/um/include/asm/mmu_context.h
index 129fb1d..17ddd4e 100644
--- a/kernel/arch/um/include/asm/mmu_context.h
+++ b/kernel/arch/um/include/asm/mmu_context.h
@@ -1,6 +1,6 @@
+/* SPDX-License-Identifier: GPL-2.0 */
/*
* Copyright (C) 2002 - 2007 Jeff Dike (jdike@{addtoit,linux.intel}.com)
- * Licensed under the GPL
*/
#ifndef __UM_MMU_CONTEXT_H
@@ -8,6 +8,7 @@
#include <linux/sched.h>
#include <linux/mm_types.h>
+#include <linux/mmap_lock.h>
#include <asm/mmu.h>
@@ -22,15 +23,9 @@
}
extern void arch_exit_mmap(struct mm_struct *mm);
static inline void arch_unmap(struct mm_struct *mm,
- struct vm_area_struct *vma,
unsigned long start, unsigned long end)
{
}
-static inline void arch_bprm_mm_init(struct mm_struct *mm,
- struct vm_area_struct *vma)
-{
-}
-
static inline bool arch_vma_access_permitted(struct vm_area_struct *vma,
bool write, bool execute, bool foreign)
{
@@ -53,9 +48,9 @@
* when the new ->mm is used for the first time.
*/
__switch_mm(&new->context.id);
- down_write_nested(&new->mmap_sem, 1);
+ mmap_write_lock_nested(new, SINGLE_DEPTH_NESTING);
uml_setup_stubs(new);
- up_write(&new->mmap_sem);
+ mmap_write_unlock(new);
}
static inline void switch_mm(struct mm_struct *prev, struct mm_struct *next,
--
Gitblit v1.6.2