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TOMOYO Linux Cross Reference
Linux/mm/cma.h

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  1 #ifndef __MM_CMA_H__
  2 #define __MM_CMA_H__
  3 
  4 struct cma {
  5         unsigned long   base_pfn;
  6         unsigned long   count;
  7         unsigned long   *bitmap;
  8         unsigned int order_per_bit; /* Order of pages represented by one bit */
  9         struct mutex    lock;
 10 #ifdef CONFIG_CMA_DEBUGFS
 11         struct hlist_head mem_head;
 12         spinlock_t mem_head_lock;
 13 #endif
 14 };
 15 
 16 extern struct cma cma_areas[MAX_CMA_AREAS];
 17 extern unsigned cma_area_count;
 18 
 19 static inline unsigned long cma_bitmap_maxno(struct cma *cma)
 20 {
 21         return cma->count >> cma->order_per_bit;
 22 }
 23 
 24 #endif
 25 

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