25 строки
421 B
C
25 строки
421 B
C
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#ifndef __ASM_GENERIC_GETORDER_H
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#define __ASM_GENERIC_GETORDER_H
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#ifndef __ASSEMBLY__
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#include <linux/compiler.h>
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/* Pure 2^n version of get_order */
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static inline __attribute_const__ int get_order(unsigned long size)
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{
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int order;
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size = (size - 1) >> (PAGE_SHIFT - 1);
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order = -1;
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do {
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size >>= 1;
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order++;
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} while (size);
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return order;
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}
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#endif /* __ASSEMBLY__ */
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#endif /* __ASM_GENERIC_GETORDER_H */
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