bit-radix.h

   1 /*
   2  * Copyright (C) 2007 Oracle.  All rights reserved.
   3  *
   4  * This program is free software; you can redistribute it and/or
   5  * modify it under the terms of the GNU General Public
   6  * License v2 as published by the Free Software Foundation.
   7  *
   8  * This program is distributed in the hope that it will be useful,
   9  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  10  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  11  * General Public License for more details.
  12  *
  13  * You should have received a copy of the GNU General Public
  14  * License along with this program; if not, write to the
  15  * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  16  * Boston, MA 021110-1307, USA.
  17  */
  18
  19 #ifndef __BIT_RADIX__
  20 #define __BIT_RADIX__
  21 #include "radix-tree.h"
  22
  23 int set_radix_bit(struct radix_tree_root *radix, unsigned long bit);
  24 int test_radix_bit(struct radix_tree_root *radix, unsigned long bit);
  25 int clear_radix_bit(struct radix_tree_root *radix, unsigned long bit);
  26 int find_first_radix_bit(struct radix_tree_root *radix, unsigned long *retbits,
  27                          unsigned long start, int nr);
  28
  29 static inline void init_bit_radix(struct radix_tree_root *radix)
  30 {
  31         INIT_RADIX_TREE(radix, GFP_NOFS);
  32 }
  33 #endif