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 17:43:10
Last Modify:2020-03-12 14:18:49 Copyright©Brick
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函数名称：memcg_set_shrinker_bit

函数原型：void memcg_set_shrinker_bit(struct mem_cgroup *memcg, int nid, int shrinker_id)

返回类型：void

参数：

类型参数名称
struct mem_cgroup *memcg
intnid
intshrinker_id
426  如果shrinker_id大于等于0且memcg且非mem_cgroup_is_root(memcg)则
429  _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
430  map等于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().(shrinker_map)
432  smp_mb__before_atomic()
433  设置内存位
434  _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()
调用者
名称描述
list_lru_add
deferred_split_huge_page
shrink_slab_memcg