diff options
Diffstat (limited to 'fs/btrfs/bit-radix.h')
| -rw-r--r-- | fs/btrfs/bit-radix.h | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/fs/btrfs/bit-radix.h b/fs/btrfs/bit-radix.h new file mode 100644 index 00000000000..56aad4c7d7f --- /dev/null +++ b/fs/btrfs/bit-radix.h @@ -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 |