cpuset_css_offline

Name:If the cpuset being removed has its flag 'sched_load_balance'* enabled, then simulate turning sched_load_balance off, which* will call rebuild_sched_domains_locked(). That is not needed* in the default hierarchy where only changes in partition

Proto:static void cpuset_css_offline(struct cgroup_subsys_state *css)

Type:void

Parameter:

Type	Parameter	Name
struct cgroup_subsys_state *	css

2802

cs = css_cs(css)

2804

get_online_cpus()

2805

percpu_down_write( & cpuset_rwsem)

2807

If is_partition_root(cs) Then pdate_prstate - update partititon_root_state* Call with cpuset_mutex held.

2810

If Not cgroup_subsys_on_dfl - fast test on whether a subsys is on default hierarchy*@ss: subsystem in question(This file *must* be included with SUBSYS() defined.) && is_sched_load_balance(cs) Then pdate_flag - read a 0 or a 1 in a file and update associated flag* Call with cpuset_mutex held.

2814

If * Default hierarchy only: * use_parent_ecpus - set if using parent's effective_cpus * child_ecpus_count - # of children with use_parent_ecpus set Then

2815

parent = parent_cs(cs)

2817

* Default hierarchy only: * use_parent_ecpus - set if using parent's effective_cpus * child_ecpus_count - # of children with use_parent_ecpus set = false

2818

child_ecpus_count--

2821

2822

lear_bit - Clears a bit in memory*@nr: Bit to clear*@addr: Address to start counting from* This is a relaxed atomic operation (no implied memory barriers).

2824

percpu_up_write( & cpuset_rwsem)

2825

put_online_cpus()

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