函数逻辑报告

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:mm\mmu_context.c Create Date:2022-07-27 15:49:15
Last Modify:2020-03-12 14:18:49 Copyright©Brick
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函数名称:se_mm* Reverses the effect of use_mm, i.e. releases the* specified mm context which was earlier taken on* by the calling kernel thread* (Note: this routine is intended to be called only* from a kernel thread context)

函数原型:void unuse_mm(struct mm_struct *mm)

返回类型:void

参数:

类型参数名称
struct mm_struct *mm
55  tsk等于当前进程
57  Protects ->fs, ->files, ->mm, ->group_info, ->comm, keyring* subscriptions and synchronises with wait4(). Also used in procfs. Also* pins the final release of task.io_context. Also protects ->cpuset and* ->cgroup.subsys[]. And ->vfork_done.
58  sync_mm_rss(mm)
59  mm = NULL
61  通知底层不需要切换虚拟地址空间
62  task_unlock(tsk)
调用者
名称描述
io_sq_thread