函数逻辑报告

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:mm\memcontrol.c Create Date:2022-07-27 17:44:07
Last Modify:2020-03-12 14:18:49 Copyright©Brick
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函数名称：mem_cgroup_wait_acct_move

函数原型：static bool mem_cgroup_wait_acct_move(struct mem_cgroup *memcg)

返回类型：bool

参数：

类型参数名称
struct mem_cgroup *memcg
1343  如果a task moving charges 且当前进程不等于a task moving charges 则
1344  如果A routine for checking "mem" is under move_account() or not.* Checking a cgroup is mc.from or mc.to or under hierarchy of* moving cgroups. This is for waiting at high-memory pressure* caused by "move".则
1345  DEFINE_WAIT(wait)
1346  Note: we use "set_current_state()" _after_ the wait-queue add,* because we need a memory barrier there on SMP, so that any* wake-function that tests for the wait-queue being active* will be guaranteed to see waitqueue addition _or_ subsequent
1348  如果a task moving charges 则进程调度
1350  sh_wait - clean up after waiting in a queue*@wq_head: waitqueue waited on*@wq_entry: wait descriptor* Sets current thread back to running state and removes* the wait descriptor from the given waitqueue if still* queued.
1351  返回:true
1354  返回:false
调用者
名称描述
try_charge