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#define IS_BUDDY_LEFT_BLOCK(zone, frame)    (((frame_index((zone), (frame)) >> (frame)->buddy_order) & 0x1) == 0)
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#define IS_BUDDY_LEFT_BLOCK(zone, frame)    (((frame_index((zone), (frame)) >> (frame)->buddy_order) & 0x1) == 0)
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#define IS_BUDDY_RIGHT_BLOCK(zone, frame)   (((frame_index((zone), (frame)) >> (frame)->buddy_order) & 0x1) == 1)
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#define IS_BUDDY_RIGHT_BLOCK(zone, frame)   (((frame_index((zone), (frame)) >> (frame)->buddy_order) & 0x1) == 1)
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#define IS_BUDDY_LEFT_BLOCK_ABS(zone, frame)    (((frame_index_abs((zone), (frame)) >> (frame)->buddy_order) & 0x1) == 0)
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#define IS_BUDDY_LEFT_BLOCK_ABS(zone, frame)    (((frame_index_abs((zone), (frame)) >> (frame)->buddy_order) & 0x1) == 0)
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#define IS_BUDDY_RIGHT_BLOCK_ABS(zone, frame)   (((frame_index_abs((zone), (frame)) >> (frame)->buddy_order) & 0x1) == 1)
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#define IS_BUDDY_RIGHT_BLOCK_ABS(zone, frame)   (((frame_index_abs((zone), (frame)) >> (frame)->buddy_order) & 0x1) == 1)
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#define frame_alloc(order, flags)               frame_alloc_generic(order, flags, NULL, NULL)
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#define frame_alloc(order, flags)               frame_alloc_generic(order, flags, NULL)
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#define frame_alloc_rc(order, flags, status)            frame_alloc_generic(order, flags, status, NULL)
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#define frame_alloc_rc_zone(order, flags, status, zone)     frame_alloc_generic(order, flags, status, zone)
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extern void frame_init(void);
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extern void frame_init(void);
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extern void * frame_alloc_generic(__u8 order, int flags, int * status, int *pzone);
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extern void * frame_alloc_generic(__u8 order, int flags, int *pzone);
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extern void frame_free(__address frame);
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extern void frame_free(__address frame);
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extern void frame_reference_add(pfn_t pfn);
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extern void frame_reference_add(pfn_t pfn);
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extern int zone_create(pfn_t start, count_t count, pfn_t confframe, int flags);
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extern int zone_create(pfn_t start, count_t count, pfn_t confframe, int flags);
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void * frame_get_parent(pfn_t frame, int hint);
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void * frame_get_parent(pfn_t frame, int hint);