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	static __inline int tmpfs_dirtree_cmp(struct tmpfs_dirent *a,			static __inline int tmpfs_dirtree_cmp(struct tmpfs_dirent *a,
	struct tmpfs_dirent *b);			struct tmpfs_dirent *b);
	RB_PROTOTYPE_STATIC(tmpfs_dir, tmpfs_dirent, uh.td_entries, tmpfs_dirtree_cmp);			RB_PROTOTYPE_STATIC(tmpfs_dir, tmpfs_dirent, uh.td_entries, tmpfs_dirtree_cmp);

	size_t			size_t
	tmpfs_mem_avail(void)			tmpfs_mem_avail(void)
	{			{
	vm_ooffset_t avail;			size_t avail;
				long reserved;

	avail = swap_pager_avail + vm_free_count() - tmpfs_pages_reserved;			avail = swap_pager_avail + vm_free_count();
	if (__predict_false(avail < 0))			reserved = atomic_load_long(&tmpfs_pages_reserved);
	avail = 0;			if (__predict_false(avail < reserved))
	return (avail);			return (0);
				return (avail - reserved);
	}			}

	size_t			size_t
	tmpfs_pages_used(struct tmpfs_mount *tmp)			tmpfs_pages_used(struct tmpfs_mount *tmp)
	{			{
	const size_t node_size = sizeof(struct tmpfs_node) +			const size_t node_size = sizeof(struct tmpfs_node) +
	sizeof(struct tmpfs_dirent);			sizeof(struct tmpfs_dirent);
	size_t meta_pages;			size_t meta_pages;
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