sbitmap_get_shallow

Name:sbitmap_get_shallow

Proto:int sbitmap_get_shallow(struct sbitmap *sb, unsigned int alloc_hint, unsigned long shallow_depth)

Type:int

Parameter:

Type	Parameter	Name
struct sbitmap *	sb
unsigned int	alloc_hint
unsigned long	shallow_depth

196

nr = -1

198

index = SB_NR_TO_INDEX(sb, alloc_hint)

200

When i < @map_nr: Number of words (cachelines) being used for the bitmap. cycle

201

again :

202

nr = __sbitmap_get_word( & @word: word holding free bits, min - return minimum of two values of the same or compatible types*@x: first value*@y: second value(@depth: Number of bits being used in @word/@cleared, shallow_depth), SB_NR_TO_BIT(sb, alloc_hint), true)

205

If nr != -1 Then

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nr += index << @shift: log2(number of bits used per word)

207

Break

210

If See if we have deferred clears that we can batch move Then Go to again

214

index++

215

alloc_hint = index << @shift: log2(number of bits used per word)

217

If index >= @map_nr: Number of words (cachelines) being used for the bitmap. Then

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index = 0

219

223

Return nr

**Caller**
Name	Describe
__sbitmap_queue_get_shallow

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