memcg_alloc_shrinker_maps

Name:memcg_alloc_shrinker_maps

Proto:static int memcg_alloc_shrinker_maps(struct mem_cgroup *memcg)

Type:int

Parameter:

Type	Parameter	Name
struct mem_cgroup *	memcg

373

ret = 0

375

If mem_cgroup_is_root(memcg) Then Return 0

378

mutex_lock( & memcg_shrinker_map_mutex)

379

size = memcg_shrinker_map_size

380

for_each_node(nid)

381

map = kvzalloc( size of map + size, GFP_KERNEL)

382

If Not map Then

383

memcg_free_shrinker_maps(memcg)

384

385

Break

387

cu_assign_pointer() - assign to RCU-protected pointer*@p: pointer to assign to*@v: value to assign (publish)* Assigns the specified value to the specified RCU-protected* pointer, ensuring that any concurrent RCU readers will see* any prior initialization(shrinker_map, map)

389

mutex_unlock - release the mutex*@lock: the mutex to be released* Unlock a mutex that has been locked by this task previously.* This function must not be used in interrupt context. Unlocking* of a not locked mutex is not allowed.

391

Return ret

**Caller**
Name	Describe
mem_cgroup_css_online

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