117  *     as not available);
187 	 * The index head is not available for the in-the-gaps method, so add an  in ubifs_calc_min_idx_lebs()
198  * ubifs_calc_available - calculate available FS space.
202  * This function calculates and returns amount of FS space available for use.
207 	long long available;  in ubifs_calc_available()  local
209 	available = c->main_bytes - c->lst.total_used;  in ubifs_calc_available()
212 	 * Now 'available' contains theoretically available flash space  in ubifs_calc_available()
231 	available -= (long long)subtract_lebs * c->leb_size;  in ubifs_calc_available()
233 	/* Subtract the dead space which is not available for use */  in ubifs_calc_available()
234 	available -= c->lst.total_dead;  in ubifs_calc_available()
242 	available -= c->lst.total_dark;  in ubifs_calc_available()
246 	 * @min_idx_lebs. Those extra LEBs are assumed to be available, but  in ubifs_calc_available()
252 		available -= subtract_lebs * c->dark_wm;  in ubifs_calc_available()
256 	return available > 0 ? available : 0;  in ubifs_calc_available()
303 	long long outstanding, available;  in do_budget_space()  local
316 	 * The number of LEBs that are available to be used by the index is:  in do_budget_space()
321 	 * @c->lst.empty_lebs are available because they are empty.  in do_budget_space()
322 	 * @c->freeable_cnt are available because they contain only free and  in do_budget_space()
323 	 * dirty space, @c->idx_gc_cnt are available because they are index  in do_budget_space()
345 	available = ubifs_calc_available(c, min_idx_lebs);  in do_budget_space()
348 	if (unlikely(available < outstanding)) {  in do_budget_space()
349 		dbg_budg("out of data space: available %lld, outstanding %lld",  in do_budget_space()
350 			 available, outstanding);  in do_budget_space()
354 	if (available - outstanding <= c->rp_size && !can_use_rp(c))  in do_budget_space()
620  * (e.g., via the 'statfs()' call) reports that it has N bytes available, they
678 	long long available, outstanding, free;  in ubifs_get_free_space_nolock()  local
682 	available = ubifs_calc_available(c, c->bi.min_idx_lebs);  in ubifs_get_free_space_nolock()
690 	 * Thus, amend the available space.  in ubifs_get_free_space_nolock()
702 	available += lebs * (c->dark_wm - c->leb_overhead);  in ubifs_get_free_space_nolock()
704 	if (available > outstanding)  in ubifs_get_free_space_nolock()
705 		free = ubifs_reported_space(c, available - outstanding);  in ubifs_get_free_space_nolock()