elevator_alloc

Name:elevator_alloc

Proto:struct elevator_queue *elevator_alloc(struct request_queue *q, struct elevator_type *e)

Type:struct elevator_queue

Parameter:

Type	Parameter	Name
struct request_queue *	q
struct elevator_type *	e

169

eq = kzalloc_node - allocate zeroed memory from a particular memory node.*@size: how many bytes of memory are required.*@flags: the type of memory to allocate (see kmalloc).*@node: memory node from which to allocate

170

If Value for the false possibility is greater at compile time(!eq) Then Return NULL

173

type = e

174

kobject_init() - Initialize a kobject structure

175

mutex_init - initialize the mutex*@mutex: the mutex to be initialized* Initialize the mutex to unlocked state.* It is not allowed to initialize an already locked mutex.( & sysfs_lock)

176

hash_init - initialize a hash table*@hashtable: hashtable to be initialized* Calculates the size of the hashtable from the given parameter, otherwise* same as hash_init_size.* This has to be a macro since HASH_BITS() will not work on pointers since(hash)

178

Return eq

**Caller**
Name	Describe
dd_init_queue	alize elevator private data (deadline_data).
kyber_init_sched
bfq_init_queue

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