calculate_order

Name:calculate_order

Proto:static inline int calculate_order(unsigned int size)

Type:int

Parameter:

Type	Parameter	Name
unsigned int	size

3286

min_objects = slub_min_objects

3287

If Not min_objects Then min_objects = 4 * (ls - find last set bit in word*@x: the word to search* This is defined in a similar way as the libc and compiler builtin* ffs, but returns the position of the most significant set bit.* fls(value) returns 0 if value is 0 or the position of the last + 1)

3289

max_objects = order_objects(slub_max_order, size)

3290

min_objects = min - return minimum of two values of the same or compatible types*@x: first value*@y: second value(min_objects, max_objects)

3292

When min_objects > 1 cycle

3295

fraction = 16

3296

When fraction >= 4 cycle

3297

order = Calculate the order of allocation given an slab object size.* The order of allocation has significant impact on performance and other* system components. Generally order 0 allocations should be preferred since

3299

If order <= slub_max_order Then Return order

3301

fraction /= 2

3303

3310

order = Calculate the order of allocation given an slab object size.* The order of allocation has significant impact on performance and other* system components. Generally order 0 allocations should be preferred since

3311

If order <= slub_max_order Then Return order

3317

order = Calculate the order of allocation given an slab object size.* The order of allocation has significant impact on performance and other* system components. Generally order 0 allocations should be preferred since

3318

If order < Free memory management - zoned buddy allocator. Then Return order

3320

Return -ENOSYS

**Caller**
Name	Describe
calculate_sizes	alculate_sizes() determines the order and the distribution of data within* a slab object.

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