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Btrfs: add a radix back bit tree

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Signed-off-by: Chris Mason <chris.mason@oracle.com>
This commit is contained in:
Chris Mason
2007-03-26 10:15:30 -04:00
committed by David Woodhouse
parent f7922033ef
commit 8ef97622ca
6 changed files with 166 additions and 56 deletions
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15
fs/btrfs/bit-radix.h Normal file
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@@ -0,0 +1,15 @@
#ifndef __BIT_RADIX__
#define __BIT_RADIX__
#include <linux/radix-tree.h>
int set_radix_bit(struct radix_tree_root *radix, unsigned long bit);
int test_radix_bit(struct radix_tree_root *radix, unsigned long bit);
int clear_radix_bit(struct radix_tree_root *radix, unsigned long bit);
int find_first_radix_bit(struct radix_tree_root *radix, unsigned long *retbits,
int nr);
static inline void init_bit_radix(struct radix_tree_root *radix)
{
INIT_RADIX_TREE(radix, GFP_NOFS);
}
#endif