memcg_has_children

Name:Test whether @memcg has children, dead or alive. Note that this* function doesn't care whether @memcg has use_hierarchy enabled and* returns %true if there are child csses according to the cgroup* hierarchy

Proto:static inline bool memcg_has_children(struct mem_cgroup *memcg)

Type:bool

Parameter:

Type	Parameter	Name
struct mem_cgroup *	memcg

3136

_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

3137

ret = ss_next_child - find the next child of a given css*@pos: the current position (%NULL to initiate traversal)*@parent: css whose children to walk* This function returns the next child of @parent and should be called

3138

_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()

3139

Return ret

**Caller**
Name	Describe
mem_cgroup_hierarchy_write

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Function report