Lines Matching full:ubi
23 #include "ubi.h"
25 static int self_check_volumes(struct ubi_device *ubi);
31 /* Device attributes corresponding to files in '/<sysfs>/class/ubi/ubiX_Y' */
50 * "Show" method for files in '/<sysfs>/class/ubi/ubiX_Y/'.
54 * /<sysfs>/class/ubi/ubiX_Y/reserved_ebs;
56 * C. process 1 starts reading the /<sysfs>/class/ubi/ubiX_Y/reserved_ebs file;
59 * out that the volume was removed from the @ubi->volumes array.
66 struct ubi_device *ubi; in vol_attribute_show() local
68 ubi = ubi_get_device(vol->ubi->ubi_num); in vol_attribute_show()
69 if (!ubi) in vol_attribute_show()
72 spin_lock(&ubi->volumes_lock); in vol_attribute_show()
73 if (!ubi->volumes[vol->vol_id]) { in vol_attribute_show()
74 spin_unlock(&ubi->volumes_lock); in vol_attribute_show()
75 ubi_put_device(ubi); in vol_attribute_show()
80 spin_unlock(&ubi->volumes_lock); in vol_attribute_show()
108 /* We've done the operation, drop volume and UBI device references */ in vol_attribute_show()
109 spin_lock(&ubi->volumes_lock); in vol_attribute_show()
112 spin_unlock(&ubi->volumes_lock); in vol_attribute_show()
113 ubi_put_device(ubi); in vol_attribute_show()
142 * @ubi: UBI device description object
149 * @ubi->device_mutex locked.
151 int ubi_create_volume(struct ubi_device *ubi, struct ubi_mkvol_req *req) in ubi_create_volume() argument
158 if (ubi->ro_mode) in ubi_create_volume()
165 spin_lock(&ubi->volumes_lock); in ubi_create_volume()
169 for (i = 0; i < ubi->vtbl_slots; i++) in ubi_create_volume()
170 if (!ubi->volumes[i]) { in ubi_create_volume()
176 ubi_err(ubi, "out of volume IDs"); in ubi_create_volume()
184 ubi->ubi_num, vol_id, (unsigned long long)req->bytes, in ubi_create_volume()
189 if (ubi->volumes[vol_id]) { in ubi_create_volume()
190 ubi_err(ubi, "volume %d already exists", vol_id); in ubi_create_volume()
195 for (i = 0; i < ubi->vtbl_slots; i++) in ubi_create_volume()
196 if (ubi->volumes[i] && in ubi_create_volume()
197 ubi->volumes[i]->name_len == req->name_len && in ubi_create_volume()
198 !strcmp(ubi->volumes[i]->name, req->name)) { in ubi_create_volume()
199 ubi_err(ubi, "volume \"%s\" exists (ID %d)", in ubi_create_volume()
205 vol->usable_leb_size = ubi->leb_size - ubi->leb_size % req->alignment; in ubi_create_volume()
210 if (vol->reserved_pebs > ubi->avail_pebs) { in ubi_create_volume()
211 ubi_err(ubi, "not enough PEBs, only %d available", in ubi_create_volume()
212 ubi->avail_pebs); in ubi_create_volume()
213 if (ubi->corr_peb_count) in ubi_create_volume()
214 ubi_err(ubi, "%d PEBs are corrupted and not used", in ubi_create_volume()
215 ubi->corr_peb_count); in ubi_create_volume()
219 ubi->avail_pebs -= vol->reserved_pebs; in ubi_create_volume()
220 ubi->rsvd_pebs += vol->reserved_pebs; in ubi_create_volume()
221 spin_unlock(&ubi->volumes_lock); in ubi_create_volume()
225 vol->data_pad = ubi->leb_size % vol->alignment; in ubi_create_volume()
229 vol->ubi = ubi; in ubi_create_volume()
235 err = ubi_wl_flush(ubi, vol_id, UBI_ALL); in ubi_create_volume()
266 dev = MKDEV(MAJOR(ubi->cdev.dev), vol_id + 1); in ubi_create_volume()
269 ubi_err(ubi, "cannot add character device"); in ubi_create_volume()
274 vol->dev.parent = &ubi->dev; in ubi_create_volume()
281 dev_set_name(&vol->dev, "%s_%d", ubi->ubi_name, vol->vol_id); in ubi_create_volume()
284 ubi_err(ubi, "cannot register device"); in ubi_create_volume()
300 err = ubi_change_vtbl_record(ubi, vol_id, &vtbl_rec); in ubi_create_volume()
304 spin_lock(&ubi->volumes_lock); in ubi_create_volume()
305 ubi->volumes[vol_id] = vol; in ubi_create_volume()
306 ubi->vol_count += 1; in ubi_create_volume()
307 spin_unlock(&ubi->volumes_lock); in ubi_create_volume()
309 ubi_volume_notify(ubi, vol, UBI_VOLUME_ADDED); in ubi_create_volume()
310 self_check_volumes(ubi); in ubi_create_volume()
331 spin_lock(&ubi->volumes_lock); in ubi_create_volume()
332 ubi->rsvd_pebs -= vol->reserved_pebs; in ubi_create_volume()
333 ubi->avail_pebs += vol->reserved_pebs; in ubi_create_volume()
335 spin_unlock(&ubi->volumes_lock); in ubi_create_volume()
340 ubi_err(ubi, "cannot create volume %d, error %d", vol_id, err); in ubi_create_volume()
351 * code in case of failure. The caller has to have the @ubi->device_mutex
357 struct ubi_device *ubi = vol->ubi; in ubi_remove_volume() local
360 dbg_gen("remove device %d, volume %d", ubi->ubi_num, vol_id); in ubi_remove_volume()
362 ubi_assert(vol == ubi->volumes[vol_id]); in ubi_remove_volume()
364 if (ubi->ro_mode) in ubi_remove_volume()
367 spin_lock(&ubi->volumes_lock); in ubi_remove_volume()
376 ubi->volumes[vol_id] = NULL; in ubi_remove_volume()
377 spin_unlock(&ubi->volumes_lock); in ubi_remove_volume()
380 err = ubi_change_vtbl_record(ubi, vol_id, NULL); in ubi_remove_volume()
386 err = ubi_eba_unmap_leb(ubi, vol, i); in ubi_remove_volume()
394 spin_lock(&ubi->volumes_lock); in ubi_remove_volume()
395 ubi->rsvd_pebs -= reserved_pebs; in ubi_remove_volume()
396 ubi->avail_pebs += reserved_pebs; in ubi_remove_volume()
397 ubi_update_reserved(ubi); in ubi_remove_volume()
398 ubi->vol_count -= 1; in ubi_remove_volume()
399 spin_unlock(&ubi->volumes_lock); in ubi_remove_volume()
401 ubi_volume_notify(ubi, vol, UBI_VOLUME_REMOVED); in ubi_remove_volume()
403 self_check_volumes(ubi); in ubi_remove_volume()
408 ubi_err(ubi, "cannot remove volume %d, error %d", vol_id, err); in ubi_remove_volume()
409 spin_lock(&ubi->volumes_lock); in ubi_remove_volume()
410 ubi->volumes[vol_id] = vol; in ubi_remove_volume()
412 spin_unlock(&ubi->volumes_lock); in ubi_remove_volume()
423 * @ubi->device_mutex locked.
429 struct ubi_device *ubi = vol->ubi; in ubi_resize_volume() local
433 if (ubi->ro_mode) in ubi_resize_volume()
437 ubi->ubi_num, vol_id, vol->reserved_pebs, reserved_pebs); in ubi_resize_volume()
441 ubi_err(ubi, "too small size %d, %d LEBs contain data", in ubi_resize_volume()
457 spin_lock(&ubi->volumes_lock); in ubi_resize_volume()
459 spin_unlock(&ubi->volumes_lock); in ubi_resize_volume()
463 spin_unlock(&ubi->volumes_lock); in ubi_resize_volume()
468 spin_lock(&ubi->volumes_lock); in ubi_resize_volume()
469 if (pebs > ubi->avail_pebs) { in ubi_resize_volume()
470 ubi_err(ubi, "not enough PEBs: requested %d, available %d", in ubi_resize_volume()
471 pebs, ubi->avail_pebs); in ubi_resize_volume()
472 if (ubi->corr_peb_count) in ubi_resize_volume()
473 ubi_err(ubi, "%d PEBs are corrupted and not used", in ubi_resize_volume()
474 ubi->corr_peb_count); in ubi_resize_volume()
475 spin_unlock(&ubi->volumes_lock); in ubi_resize_volume()
479 ubi->avail_pebs -= pebs; in ubi_resize_volume()
480 ubi->rsvd_pebs += pebs; in ubi_resize_volume()
485 spin_unlock(&ubi->volumes_lock); in ubi_resize_volume()
489 vtbl_rec = ubi->vtbl[vol_id]; in ubi_resize_volume()
491 err = ubi_change_vtbl_record(ubi, vol_id, &vtbl_rec); in ubi_resize_volume()
497 err = ubi_eba_unmap_leb(ubi, vol, reserved_pebs + i); in ubi_resize_volume()
501 spin_lock(&ubi->volumes_lock); in ubi_resize_volume()
502 ubi->rsvd_pebs += pebs; in ubi_resize_volume()
503 ubi->avail_pebs -= pebs; in ubi_resize_volume()
504 ubi_update_reserved(ubi); in ubi_resize_volume()
509 spin_unlock(&ubi->volumes_lock); in ubi_resize_volume()
520 ubi_volume_notify(ubi, vol, UBI_VOLUME_RESIZED); in ubi_resize_volume()
521 self_check_volumes(ubi); in ubi_resize_volume()
526 spin_lock(&ubi->volumes_lock); in ubi_resize_volume()
527 ubi->rsvd_pebs -= pebs; in ubi_resize_volume()
528 ubi->avail_pebs += pebs; in ubi_resize_volume()
529 spin_unlock(&ubi->volumes_lock); in ubi_resize_volume()
537 * ubi_rename_volumes - re-name UBI volumes.
538 * @ubi: UBI device description object
545 int ubi_rename_volumes(struct ubi_device *ubi, struct list_head *rename_list) in ubi_rename_volumes() argument
550 err = ubi_vtbl_rename_volumes(ubi, rename_list); in ubi_rename_volumes()
562 spin_lock(&ubi->volumes_lock); in ubi_rename_volumes()
565 spin_unlock(&ubi->volumes_lock); in ubi_rename_volumes()
566 ubi_volume_notify(ubi, vol, UBI_VOLUME_RENAMED); in ubi_rename_volumes()
571 self_check_volumes(ubi); in ubi_rename_volumes()
577 * @ubi: UBI device description object
584 int ubi_add_volume(struct ubi_device *ubi, struct ubi_volume *vol) in ubi_add_volume() argument
594 dev = MKDEV(MAJOR(ubi->cdev.dev), vol->vol_id + 1); in ubi_add_volume()
597 ubi_err(ubi, "cannot add character device for volume %d, error %d", in ubi_add_volume()
603 vol->dev.parent = &ubi->dev; in ubi_add_volume()
609 dev_set_name(&vol->dev, "%s_%d", ubi->ubi_name, vol->vol_id); in ubi_add_volume()
614 self_check_volumes(ubi); in ubi_add_volume()
624 * @ubi: UBI device description object
628 * Used only when the UBI device is detached.
630 void ubi_free_volume(struct ubi_device *ubi, struct ubi_volume *vol) in ubi_free_volume() argument
634 ubi->volumes[vol->vol_id] = NULL; in ubi_free_volume()
641 * @ubi: UBI device description object
646 static int self_check_volume(struct ubi_device *ubi, int vol_id) in self_check_volume() argument
648 int idx = vol_id2idx(ubi, vol_id); in self_check_volume()
654 spin_lock(&ubi->volumes_lock); in self_check_volume()
655 reserved_pebs = be32_to_cpu(ubi->vtbl[vol_id].reserved_pebs); in self_check_volume()
656 vol = ubi->volumes[idx]; in self_check_volume()
660 ubi_err(ubi, "no volume info, but volume exists"); in self_check_volume()
663 spin_unlock(&ubi->volumes_lock); in self_check_volume()
669 ubi_err(ubi, "negative values"); in self_check_volume()
672 if (vol->alignment > ubi->leb_size || vol->alignment == 0) { in self_check_volume()
673 ubi_err(ubi, "bad alignment"); in self_check_volume()
677 n = vol->alignment & (ubi->min_io_size - 1); in self_check_volume()
679 ubi_err(ubi, "alignment is not multiple of min I/O unit"); in self_check_volume()
683 n = ubi->leb_size % vol->alignment; in self_check_volume()
685 ubi_err(ubi, "bad data_pad, has to be %lld", n); in self_check_volume()
691 ubi_err(ubi, "bad vol_type"); in self_check_volume()
696 ubi_err(ubi, "update marker and corrupted simultaneously"); in self_check_volume()
700 if (vol->reserved_pebs > ubi->good_peb_count) { in self_check_volume()
701 ubi_err(ubi, "too large reserved_pebs"); in self_check_volume()
705 n = ubi->leb_size - vol->data_pad; in self_check_volume()
706 if (vol->usable_leb_size != ubi->leb_size - vol->data_pad) { in self_check_volume()
707 ubi_err(ubi, "bad usable_leb_size, has to be %lld", n); in self_check_volume()
712 ubi_err(ubi, "too long volume name, max is %d", in self_check_volume()
719 ubi_err(ubi, "bad name_len %lld", n); in self_check_volume()
726 ubi_err(ubi, "corrupted dynamic volume"); in self_check_volume()
730 ubi_err(ubi, "bad used_ebs"); in self_check_volume()
734 ubi_err(ubi, "bad last_eb_bytes"); in self_check_volume()
738 ubi_err(ubi, "bad used_bytes"); in self_check_volume()
743 ubi_err(ubi, "bad used_ebs"); in self_check_volume()
748 ubi_err(ubi, "bad last_eb_bytes"); in self_check_volume()
753 ubi_err(ubi, "bad used_bytes"); in self_check_volume()
758 alignment = be32_to_cpu(ubi->vtbl[vol_id].alignment); in self_check_volume()
759 data_pad = be32_to_cpu(ubi->vtbl[vol_id].data_pad); in self_check_volume()
760 name_len = be16_to_cpu(ubi->vtbl[vol_id].name_len); in self_check_volume()
761 upd_marker = ubi->vtbl[vol_id].upd_marker; in self_check_volume()
762 name = &ubi->vtbl[vol_id].name[0]; in self_check_volume()
763 if (ubi->vtbl[vol_id].vol_type == UBI_VID_DYNAMIC) in self_check_volume()
771 ubi_err(ubi, "volume info is different"); in self_check_volume()
775 spin_unlock(&ubi->volumes_lock); in self_check_volume()
779 ubi_err(ubi, "self-check failed for volume %d", vol_id); in self_check_volume()
782 ubi_dump_vtbl_record(&ubi->vtbl[vol_id], vol_id); in self_check_volume()
784 spin_unlock(&ubi->volumes_lock); in self_check_volume()
790 * @ubi: UBI device description object
794 static int self_check_volumes(struct ubi_device *ubi) in self_check_volumes() argument
798 if (!ubi_dbg_chk_gen(ubi)) in self_check_volumes()
801 for (i = 0; i < ubi->vtbl_slots; i++) { in self_check_volumes()
802 err = self_check_volume(ubi, i); in self_check_volumes()