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f7e9077a16
The PID of the stub process can be obtained from current_mm_id(). There is no need to track it via userspace_pid[]. Stop doing that to simplify the code. Signed-off-by: Tiwei Bie <tiwei.btw@antgroup.com> Link: https://patch.msgid.link/20250711065021.2535362-4-tiwei.bie@linux.dev Signed-off-by: Johannes Berg <johannes.berg@intel.com>
40 lines
941 B
C
40 lines
941 B
C
/* SPDX-License-Identifier: GPL-2.0 */
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/*
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* Copyright (C) 2002 - 2007 Jeff Dike (jdike@{addtoit,linux.intel}.com)
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*/
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#ifndef __UM_MMU_CONTEXT_H
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#define __UM_MMU_CONTEXT_H
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#include <linux/sched.h>
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#include <linux/mm_types.h>
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#include <linux/mmap_lock.h>
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#include <asm/mm_hooks.h>
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#include <asm/mmu.h>
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#define activate_mm activate_mm
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static inline void activate_mm(struct mm_struct *old, struct mm_struct *new)
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{
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}
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static inline void switch_mm(struct mm_struct *prev, struct mm_struct *next,
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struct task_struct *tsk)
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{
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unsigned cpu = smp_processor_id();
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if (prev != next) {
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cpumask_clear_cpu(cpu, mm_cpumask(prev));
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cpumask_set_cpu(cpu, mm_cpumask(next));
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}
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}
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#define init_new_context init_new_context
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extern int init_new_context(struct task_struct *task, struct mm_struct *mm);
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#define destroy_context destroy_context
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extern void destroy_context(struct mm_struct *mm);
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#include <asm-generic/mmu_context.h>
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#endif
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