函数逻辑报告

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:include\linux\memcontrol.h Create Date:2022-07-27 06:56:23
Last Modify:2020-03-12 14:18:49 Copyright©Brick
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函数名称：mm_match_cgroup

函数原型：static inline bool mm_match_cgroup(struct mm_struct *mm, struct mem_cgroup *memcg)

返回类型：bool

参数：

类型参数名称
struct mm_struct *mm
struct mem_cgroup *memcg
501  bool match = false
503  _read_lock() - mark the beginning of an RCU read-side critical section* When synchronize_rcu() is invoked on one CPU while other CPUs* are within RCU read-side critical sections, then the* synchronize_rcu() is guaranteed to block until after all the other
504  task_memcg等于mem_cgroup_from_task(cu_dereference() - fetch RCU-protected pointer for dereferencing*@p: The pointer to read, prior to dereferencing* This is a simple wrapper around rcu_dereference_check().(* "owner" points to a task that is regarded as the canonical * user/owner of this mm. All of the following must be true in * order for it to be changed: * current == mm->owner * current->mm != mm * new_owner->mm == mm * new_owner->alloc_lock is held))
505  如果task_memcg则match等于mem_cgroup_is_descendant(task_memcg, memcg)
507  _read_unlock() - marks the end of an RCU read-side critical section.* In most situations, rcu_read_unlock() is immune from deadlock.* However, in kernels built with CONFIG_RCU_BOOST, rcu_read_unlock()
508  返回:match
调用者
名称描述
invalid_page_referenced_vma