Lines Matching full:ubi
14 struct ubi_device *ubi = container_of(wrk, struct ubi_device, fm_work); in update_fastmap_work_fn() local
16 ubi_update_fastmap(ubi); in update_fastmap_work_fn()
17 spin_lock(&ubi->wl_lock); in update_fastmap_work_fn()
18 ubi->fm_work_scheduled = 0; in update_fastmap_work_fn()
19 spin_unlock(&ubi->wl_lock); in update_fastmap_work_fn()
42 static inline void return_unused_peb(struct ubi_device *ubi, in return_unused_peb() argument
45 wl_tree_add(e, &ubi->free); in return_unused_peb()
46 ubi->free_count++; in return_unused_peb()
51 * @ubi: UBI device description object
54 static void return_unused_pool_pebs(struct ubi_device *ubi, in return_unused_pool_pebs() argument
61 e = ubi->lookuptbl[pool->pebs[i]]; in return_unused_pool_pebs()
62 return_unused_peb(ubi, e); in return_unused_pool_pebs()
68 * @ubi: UBI device description object
75 struct ubi_wl_entry *ubi_wl_get_fm_peb(struct ubi_device *ubi, int anchor) in ubi_wl_get_fm_peb() argument
79 if (!ubi->free.rb_node || (ubi->free_count - ubi->beb_rsvd_pebs < 1)) in ubi_wl_get_fm_peb()
83 e = find_anchor_wl_entry(&ubi->free); in ubi_wl_get_fm_peb()
85 e = find_mean_wl_entry(ubi, &ubi->free); in ubi_wl_get_fm_peb()
90 self_check_in_wl_tree(ubi, e, &ubi->free); in ubi_wl_get_fm_peb()
94 rb_erase(&e->u.rb, &ubi->free); in ubi_wl_get_fm_peb()
95 ubi->free_count--; in ubi_wl_get_fm_peb()
101 * has_enough_free_count - whether ubi has enough free pebs to fill fm pools
102 * @ubi: UBI device description object
103 * @is_wl_pool: whether UBI is filling wear leveling pool
108 * For wear leveling pool, UBI should also reserve free pebs for bad pebs
112 static bool has_enough_free_count(struct ubi_device *ubi, bool is_wl_pool) in has_enough_free_count() argument
117 if (!ubi->free.rb_node) in has_enough_free_count()
120 beb_rsvd_pebs = is_wl_pool ? ubi->beb_rsvd_pebs : 0; in has_enough_free_count()
121 if (ubi->fm_wl_pool.size > 0 && !(ubi->ro_mode || ubi->fm_disabled)) in has_enough_free_count()
122 fm_used = ubi->fm_size / ubi->leb_size - 1; in has_enough_free_count()
124 return ubi->free_count - beb_rsvd_pebs > fm_used; in has_enough_free_count()
129 * @ubi: UBI device description object
131 void ubi_refill_pools(struct ubi_device *ubi) in ubi_refill_pools() argument
133 struct ubi_fm_pool *wl_pool = &ubi->fm_wl_pool; in ubi_refill_pools()
134 struct ubi_fm_pool *pool = &ubi->fm_pool; in ubi_refill_pools()
138 spin_lock(&ubi->wl_lock); in ubi_refill_pools()
140 return_unused_pool_pebs(ubi, wl_pool); in ubi_refill_pools()
141 return_unused_pool_pebs(ubi, pool); in ubi_refill_pools()
146 if (ubi->fm_anchor) { in ubi_refill_pools()
147 wl_tree_add(ubi->fm_anchor, &ubi->free); in ubi_refill_pools()
148 ubi->free_count++; in ubi_refill_pools()
149 ubi->fm_anchor = NULL; in ubi_refill_pools()
152 if (!ubi->fm_disabled) in ubi_refill_pools()
154 * All available PEBs are in ubi->free, now is the time to get in ubi_refill_pools()
157 ubi->fm_anchor = ubi_wl_get_fm_peb(ubi, 1); in ubi_refill_pools()
162 if (!has_enough_free_count(ubi, false)) in ubi_refill_pools()
165 e = wl_get_wle(ubi); in ubi_refill_pools()
175 if (!has_enough_free_count(ubi, true)) in ubi_refill_pools()
178 e = find_wl_entry(ubi, &ubi->free, WL_FREE_MAX_DIFF); in ubi_refill_pools()
179 self_check_in_wl_tree(ubi, e, &ubi->free); in ubi_refill_pools()
180 rb_erase(&e->u.rb, &ubi->free); in ubi_refill_pools()
181 ubi->free_count--; in ubi_refill_pools()
195 spin_unlock(&ubi->wl_lock); in ubi_refill_pools()
200 * @ubi: UBI device description object
207 static int produce_free_peb(struct ubi_device *ubi) in produce_free_peb() argument
211 while (!ubi->free.rb_node && ubi->works_count) { in produce_free_peb()
213 err = do_work(ubi); in produce_free_peb()
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) in ubi_wl_get_peb() argument
233 struct ubi_fm_pool *pool = &ubi->fm_pool; in ubi_wl_get_peb()
234 struct ubi_fm_pool *wl_pool = &ubi->fm_wl_pool; in ubi_wl_get_peb()
237 down_read(&ubi->fm_eba_sem); in ubi_wl_get_peb()
238 spin_lock(&ubi->wl_lock); in ubi_wl_get_peb()
243 spin_unlock(&ubi->wl_lock); in ubi_wl_get_peb()
244 up_read(&ubi->fm_eba_sem); in ubi_wl_get_peb()
245 ret = ubi_update_fastmap(ubi); in ubi_wl_get_peb()
247 ubi_msg(ubi, "Unable to write a new fastmap: %i", ret); in ubi_wl_get_peb()
248 down_read(&ubi->fm_eba_sem); in ubi_wl_get_peb()
251 down_read(&ubi->fm_eba_sem); in ubi_wl_get_peb()
252 spin_lock(&ubi->wl_lock); in ubi_wl_get_peb()
256 spin_unlock(&ubi->wl_lock); in ubi_wl_get_peb()
259 ubi_err(ubi, "Unable to get a free PEB from user WL pool"); in ubi_wl_get_peb()
263 up_read(&ubi->fm_eba_sem); in ubi_wl_get_peb()
264 ret = produce_free_peb(ubi); in ubi_wl_get_peb()
266 down_read(&ubi->fm_eba_sem); in ubi_wl_get_peb()
274 prot_queue_add(ubi, ubi->lookuptbl[ret]); in ubi_wl_get_peb()
275 spin_unlock(&ubi->wl_lock); in ubi_wl_get_peb()
282 * @ubi: UBI device description object
284 static struct ubi_wl_entry *get_peb_for_wl(struct ubi_device *ubi) in get_peb_for_wl() argument
286 struct ubi_fm_pool *pool = &ubi->fm_wl_pool; in get_peb_for_wl()
289 ubi_assert(rwsem_is_locked(&ubi->fm_eba_sem)); in get_peb_for_wl()
295 if (!ubi->fm_work_scheduled) { in get_peb_for_wl()
296 ubi->fm_work_scheduled = 1; in get_peb_for_wl()
297 schedule_work(&ubi->fm_work); in get_peb_for_wl()
303 return ubi->lookuptbl[pnum]; in get_peb_for_wl()
308 * @ubi: UBI device description object
310 int ubi_ensure_anchor_pebs(struct ubi_device *ubi) in ubi_ensure_anchor_pebs() argument
315 spin_lock(&ubi->wl_lock); in ubi_ensure_anchor_pebs()
318 if (ubi->fm_anchor) { in ubi_ensure_anchor_pebs()
319 spin_unlock(&ubi->wl_lock); in ubi_ensure_anchor_pebs()
324 anchor = ubi_wl_get_fm_peb(ubi, 1); in ubi_ensure_anchor_pebs()
326 ubi->fm_anchor = anchor; in ubi_ensure_anchor_pebs()
327 spin_unlock(&ubi->wl_lock); in ubi_ensure_anchor_pebs()
331 ubi->fm_do_produce_anchor = 1; in ubi_ensure_anchor_pebs()
333 if (ubi->wl_scheduled) { in ubi_ensure_anchor_pebs()
334 spin_unlock(&ubi->wl_lock); in ubi_ensure_anchor_pebs()
337 ubi->wl_scheduled = 1; in ubi_ensure_anchor_pebs()
338 spin_unlock(&ubi->wl_lock); in ubi_ensure_anchor_pebs()
342 spin_lock(&ubi->wl_lock); in ubi_ensure_anchor_pebs()
343 ubi->wl_scheduled = 0; in ubi_ensure_anchor_pebs()
344 spin_unlock(&ubi->wl_lock); in ubi_ensure_anchor_pebs()
349 __schedule_ubi_work(ubi, wrk); in ubi_ensure_anchor_pebs()
358 * @ubi: UBI device description object
363 int ubi_wl_put_fm_peb(struct ubi_device *ubi, struct ubi_wl_entry *fm_e, in ubi_wl_put_fm_peb() argument
372 ubi_assert(pnum < ubi->peb_count); in ubi_wl_put_fm_peb()
374 spin_lock(&ubi->wl_lock); in ubi_wl_put_fm_peb()
375 e = ubi->lookuptbl[pnum]; in ubi_wl_put_fm_peb()
384 ubi->lookuptbl[pnum] = e; in ubi_wl_put_fm_peb()
387 spin_unlock(&ubi->wl_lock); in ubi_wl_put_fm_peb()
390 return schedule_erase(ubi, e, vol_id, lnum, torture, true); in ubi_wl_put_fm_peb()
402 static void ubi_fastmap_close(struct ubi_device *ubi) in ubi_fastmap_close() argument
406 return_unused_pool_pebs(ubi, &ubi->fm_pool); in ubi_fastmap_close()
407 return_unused_pool_pebs(ubi, &ubi->fm_wl_pool); in ubi_fastmap_close()
409 if (ubi->fm_anchor) { in ubi_fastmap_close()
410 return_unused_peb(ubi, ubi->fm_anchor); in ubi_fastmap_close()
411 ubi->fm_anchor = NULL; in ubi_fastmap_close()
414 if (ubi->fm) { in ubi_fastmap_close()
415 for (i = 0; i < ubi->fm->used_blocks; i++) in ubi_fastmap_close()
416 kfree(ubi->fm->e[i]); in ubi_fastmap_close()
418 kfree(ubi->fm); in ubi_fastmap_close()
425 * @ubi: UBI device description object
429 static struct ubi_wl_entry *may_reserve_for_fm(struct ubi_device *ubi, in may_reserve_for_fm() argument
432 if (e && !ubi->fm_disabled && !ubi->fm && in may_reserve_for_fm()