1 #include <sys/types.h>
2 
3 #define DEFAULT_CHUNKSIZE (1024*1024)
4 
5 #define MAX_HIST	32
6 struct free_chunk_histogram {
7 	unsigned long fc_chunks[MAX_HIST];
8 	unsigned long fc_blocks[MAX_HIST];
9 };
10 
11 struct chunk_info {
12 	unsigned long chunkbytes;	/* chunk size in bytes */
13 	int chunkbits;			/* chunk size in bits */
14 	unsigned long free_chunks;	/* total free chunks of given size */
15 	unsigned long real_free_chunks; /* free chunks of any size */
16 	int blocksize_bits;		/* fs blocksize in bits */
17 	int blks_in_chunk;		/* number of blocks in a chunk */
18 	unsigned long min, max, avg;	/* chunk size stats */
19 	struct free_chunk_histogram histogram; /* histogram of all chunk sizes*/
20 };
21