update_sibling_cpumasks

Name:pdate_sibling_cpumasks - Update siblings cpumasks*@parent: Parent cpuset*@cs: Current cpuset*@tmp: Temp variables

Proto:static void update_sibling_cpumasks(struct cpuset *parent, struct cpuset *cs, struct tmpmasks *tmp)

Type:void

Parameter:

Type	Parameter	Name
struct cpuset *	parent
struct cpuset *	cs
struct tmpmasks *	tmp

1456

_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

1457

cpuset_for_each_child - traverse online children of a cpuset*@child_cs: loop cursor pointing to the current child*@pos_css: used for iteration*@parent_cs: target cpuset to walk children of* Walk @child_cs through the online children of @parent_cs(sibling, pos_css, parent)

1458

If sibling == cs Then Continue

1460

If Not * Default hierarchy only: * use_parent_ecpus - set if using parent's effective_cpus * child_ecpus_count - # of children with use_parent_ecpus set Then Continue

1463

pdate_cpumasks_hier - Update effective cpumasks and tasks in the subtree*@cs: the cpuset to consider*@tmp: temp variables for calculating effective_cpus & partition setup* When congifured cpumask is changed, the effective cpumasks of this cpuset

1465

_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()

**Caller**
Name	Describe
update_cpumask	pdate_cpumask - update the cpus_allowed mask of a cpuset and all tasks in it@cs: the cpuset to consider@trialcs: trial cpuset*@buf: buffer of cpu numbers written to this cpuset
update_prstate	pdate_prstate - update partititon_root_state* Call with cpuset_mutex held.

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