fs/tux3/dleaf.h

#ifndef TUX3_DLEAF_H
#define TUX3_DLEAF_H

struct dleaf_req {
	struct btree_key_range key;	/* index and count */

	int seg_cnt;			/* How many segs are available */
	int seg_max;			/* Max size of seg[] */
	struct block_segment *seg;	/* Pointer to seg[] */

	int seg_idx;			/* use by dleaf_write() internally */
	int overwrite;

	/* Callback to allocate blocks to ->seg for write */
	int (*seg_find)(struct btree *, struct dleaf_req *, int, unsigned,
			unsigned *);
	int (*seg_alloc)(struct btree *, struct dleaf_req *, int);
	void (*seg_free)(struct btree *, block_t, unsigned);
};

static inline unsigned seg_total_count(struct block_segment *seg, int nr_segs)
{
	unsigned total = 0;
	int i;
	for (i = 0; i < nr_segs; i++)
		total += seg[i].count;
	return total;
}

#endif /* !TUX3_DLEAF_H */