Lines Matching defs:ubi
14 struct ubi_device *ubi = container_of(wrk, struct ubi_device, fm_work);
16 ubi_update_fastmap(ubi);
17 spin_lock(&ubi->wl_lock);
18 ubi->fm_work_scheduled = 0;
19 spin_unlock(&ubi->wl_lock);
42 static inline void return_unused_peb(struct ubi_device *ubi,
45 wl_tree_add(e, &ubi->free);
46 ubi->free_count++;
51 * @ubi: UBI device description object
54 static void return_unused_pool_pebs(struct ubi_device *ubi,
61 e = ubi->lookuptbl[pool->pebs[i]];
62 return_unused_peb(ubi, e);
68 * @ubi: UBI device description object
75 struct ubi_wl_entry *ubi_wl_get_fm_peb(struct ubi_device *ubi, int anchor)
79 if (!ubi->free.rb_node || (ubi->free_count - ubi->beb_rsvd_pebs < 1))
83 e = find_anchor_wl_entry(&ubi->free);
85 e = find_mean_wl_entry(ubi, &ubi->free);
90 self_check_in_wl_tree(ubi, e, &ubi->free);
94 rb_erase(&e->u.rb, &ubi->free);
95 ubi->free_count--;
101 * has_enough_free_count - whether ubi has enough free pebs to fill fm pools
102 * @ubi: UBI device description object
112 static bool has_enough_free_count(struct ubi_device *ubi, bool is_wl_pool)
117 if (!ubi->free.rb_node)
120 beb_rsvd_pebs = is_wl_pool ? ubi->beb_rsvd_pebs : 0;
121 if (ubi->fm_wl_pool.size > 0 && !(ubi->ro_mode || ubi->fm_disabled))
122 fm_used = ubi->fm_size / ubi->leb_size - 1;
124 return ubi->free_count - beb_rsvd_pebs > fm_used;
129 * @ubi: UBI device description object
131 void ubi_refill_pools(struct ubi_device *ubi)
133 struct ubi_fm_pool *wl_pool = &ubi->fm_wl_pool;
134 struct ubi_fm_pool *pool = &ubi->fm_pool;
138 spin_lock(&ubi->wl_lock);
140 return_unused_pool_pebs(ubi, wl_pool);
141 return_unused_pool_pebs(ubi, pool);
146 if (ubi->fm_anchor) {
147 wl_tree_add(ubi->fm_anchor, &ubi->free);
148 ubi->free_count++;
149 ubi->fm_anchor = NULL;
152 if (!ubi->fm_disabled)
154 * All available PEBs are in ubi->free, now is the time to get
157 ubi->fm_anchor = ubi_wl_get_fm_peb(ubi, 1);
162 if (!has_enough_free_count(ubi, false))
165 e = wl_get_wle(ubi);
175 if (!has_enough_free_count(ubi, true))
178 e = find_wl_entry(ubi, &ubi->free, WL_FREE_MAX_DIFF);
179 self_check_in_wl_tree(ubi, e, &ubi->free);
180 rb_erase(&e->u.rb, &ubi->free);
181 ubi->free_count--;
195 spin_unlock(&ubi->wl_lock);
200 * @ubi: UBI device description object
207 static int produce_free_peb(struct ubi_device *ubi)
211 while (!ubi->free.rb_node && ubi->works_count) {
213 err = do_work(ubi);
224 * @ubi: UBI device description object
228 * Returns with ubi->fm_eba_sem held in read mode!
230 int ubi_wl_get_peb(struct ubi_device *ubi)
233 struct ubi_fm_pool *pool = &ubi->fm_pool;
234 struct ubi_fm_pool *wl_pool = &ubi->fm_wl_pool;
237 down_read(&ubi->fm_eba_sem);
238 spin_lock(&ubi->wl_lock);
243 spin_unlock(&ubi->wl_lock);
244 up_read(&ubi->fm_eba_sem);
245 ret = ubi_update_fastmap(ubi);
247 ubi_msg(ubi, "Unable to write a new fastmap: %i", ret);
248 down_read(&ubi->fm_eba_sem);
251 down_read(&ubi->fm_eba_sem);
252 spin_lock(&ubi->wl_lock);
256 spin_unlock(&ubi->wl_lock);
259 ubi_err(ubi, "Unable to get a free PEB from user WL pool");
263 up_read(&ubi->fm_eba_sem);
264 ret = produce_free_peb(ubi);
266 down_read(&ubi->fm_eba_sem);
274 prot_queue_add(ubi, ubi->lookuptbl[ret]);
275 spin_unlock(&ubi->wl_lock);
284 * @ubi: UBI device description object
286 static struct ubi_wl_entry *next_peb_for_wl(struct ubi_device *ubi)
288 struct ubi_fm_pool *pool = &ubi->fm_wl_pool;
295 return ubi->lookuptbl[pnum];
301 * and 'ubi->free', because free PEB in 'ubi->free' tree maybe moved into
304 * @ubi: UBI device description object
306 static bool need_wear_leveling(struct ubi_device *ubi)
311 if (!ubi->used.rb_node)
314 e = next_peb_for_wl(ubi);
316 if (!ubi->free.rb_node)
318 e = find_wl_entry(ubi, &ubi->free, WL_FREE_MAX_DIFF);
322 if (ubi->free.rb_node) {
323 e = find_wl_entry(ubi, &ubi->free, WL_FREE_MAX_DIFF);
327 e = rb_entry(rb_first(&ubi->used), struct ubi_wl_entry, u.rb);
334 * @ubi: UBI device description object
336 static struct ubi_wl_entry *get_peb_for_wl(struct ubi_device *ubi)
338 struct ubi_fm_pool *pool = &ubi->fm_wl_pool;
341 ubi_assert(rwsem_is_locked(&ubi->fm_eba_sem));
347 if (!ubi->fm_work_scheduled) {
348 ubi->fm_work_scheduled = 1;
349 schedule_work(&ubi->fm_work);
355 return ubi->lookuptbl[pnum];
360 * @ubi: UBI device description object
362 int ubi_ensure_anchor_pebs(struct ubi_device *ubi)
367 spin_lock(&ubi->wl_lock);
370 if (ubi->fm_anchor) {
371 spin_unlock(&ubi->wl_lock);
376 anchor = ubi_wl_get_fm_peb(ubi, 1);
378 ubi->fm_anchor = anchor;
379 spin_unlock(&ubi->wl_lock);
383 ubi->fm_do_produce_anchor = 1;
385 if (ubi->wl_scheduled) {
386 spin_unlock(&ubi->wl_lock);
389 ubi->wl_scheduled = 1;
390 spin_unlock(&ubi->wl_lock);
394 spin_lock(&ubi->wl_lock);
395 ubi->wl_scheduled = 0;
396 spin_unlock(&ubi->wl_lock);
401 __schedule_ubi_work(ubi, wrk);
410 * @ubi: UBI device description object
415 int ubi_wl_put_fm_peb(struct ubi_device *ubi, struct ubi_wl_entry *fm_e,
424 ubi_assert(pnum < ubi->peb_count);
426 spin_lock(&ubi->wl_lock);
427 e = ubi->lookuptbl[pnum];
436 ubi->lookuptbl[pnum] = e;
439 spin_unlock(&ubi->wl_lock);
442 return schedule_erase(ubi, e, vol_id, lnum, torture, true);
454 static void ubi_fastmap_close(struct ubi_device *ubi)
458 return_unused_pool_pebs(ubi, &ubi->fm_pool);
459 return_unused_pool_pebs(ubi, &ubi->fm_wl_pool);
461 if (ubi->fm_anchor) {
462 return_unused_peb(ubi, ubi->fm_anchor);
463 ubi->fm_anchor = NULL;
466 if (ubi->fm) {
467 for (i = 0; i < ubi->fm->used_blocks; i++)
468 kfree(ubi->fm->e[i]);
470 kfree(ubi->fm);
477 * @ubi: UBI device description object
481 static struct ubi_wl_entry *may_reserve_for_fm(struct ubi_device *ubi,
484 if (e && !ubi->fm_disabled && !ubi->fm &&