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#define ALIGN(x,a)      __ALIGN_MASK(x,(typeof(x))(a)-1)
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#define ALIGN(x,a)      __ALIGN_MASK(x,(typeof(x))(a)-1)
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#define __ALIGN_MASK(x,mask)    (((x)+(mask))&~(mask))
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#define __ALIGN_MASK(x,mask)    (((x)+(mask))&~(mask))
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#define PTR_ALIGN(p, a)     ((typeof(p))ALIGN((unsigned long)(p), (a)))
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#define PTR_ALIGN(p, a)     ((typeof(p))ALIGN((unsigned long)(p), (a)))
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#define IS_ALIGNED(x, a)        (((x) & ((typeof(x))(a) - 1)) == 0)
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#define IS_ALIGNED(x, a)        (((x) & ((typeof(x))(a) - 1)) == 0)
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/* The `const' in roundup() prevents gcc-3.3 from calling __divdi3 */
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#define roundup(x, y) (                                 \
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{                                                       \
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        const typeof(y) __y = y;                        \
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        (((x) + (__y - 1)) / __y) * __y;                \
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}                                                       \
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#define roundup(x, y) ((((x) + ((y) - 1)) / (y)) * (y))
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)
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#define DIV_ROUND_UP(n,d) (((n) + (d) - 1) / (d))
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#define DIV_ROUND_UP(n,d) (((n) + (d) - 1) / (d))
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#define DIV_ROUND_CLOSEST(x, divisor)(                  \
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#define DIV_ROUND_CLOSEST(x, divisor)(                  \