fs/btrfs/bit-radix.h

   1 #ifndef __BIT_RADIX__
   2 #define __BIT_RADIX__
   3 #include <linux/radix-tree.h>
   4
   5 int set_radix_bit(struct radix_tree_root *radix, unsigned long bit);
   6 int test_radix_bit(struct radix_tree_root *radix, unsigned long bit);
   7 int clear_radix_bit(struct radix_tree_root *radix, unsigned long bit);
   8 int find_first_radix_bit(struct radix_tree_root *radix, unsigned long *retbits,
   9                          int nr);
  10
  11 static inline void init_bit_radix(struct radix_tree_root *radix)
  12 {
  13         INIT_RADIX_TREE(radix, GFP_NOFS);
  14 }
  15 #endif