Lines Matching defs:ubi
17 #include "ubi.h"
19 static int self_check_volumes(struct ubi_device *ubi);
24 /* Device attributes corresponding to files in '/<sysfs>/class/ubi/ubiX_Y' */
43 * "Show" method for files in '/<sysfs>/class/ubi/ubiX_Y/'.
47 * /<sysfs>/class/ubi/ubiX_Y/reserved_ebs;
49 * C. process 1 starts reading the /<sysfs>/class/ubi/ubiX_Y/reserved_ebs file;
52 * out that the volume was removed from the @ubi->volumes array.
59 struct ubi_device *ubi = vol->ubi;
61 spin_lock(&ubi->volumes_lock);
62 if (!ubi->volumes[vol->vol_id]) {
63 spin_unlock(&ubi->volumes_lock);
68 spin_unlock(&ubi->volumes_lock);
97 spin_lock(&ubi->volumes_lock);
100 spin_unlock(&ubi->volumes_lock);
129 * @ubi: UBI device description object
136 * @ubi->device_mutex locked.
138 int ubi_create_volume(struct ubi_device *ubi, struct ubi_mkvol_req *req)
145 if (ubi->ro_mode)
154 vol->dev.parent = &ubi->dev;
161 spin_lock(&ubi->volumes_lock);
165 for (i = 0; i < ubi->vtbl_slots; i++)
166 if (!ubi->volumes[i]) {
172 ubi_err(ubi, "out of volume IDs");
180 ubi->ubi_num, vol_id, (unsigned long long)req->bytes,
185 if (ubi->volumes[vol_id]) {
186 ubi_err(ubi, "volume %d already exists", vol_id);
191 for (i = 0; i < ubi->vtbl_slots; i++)
192 if (ubi->volumes[i] &&
193 ubi->volumes[i]->name_len == req->name_len &&
194 !strcmp(ubi->volumes[i]->name, req->name)) {
195 ubi_err(ubi, "volume \"%s\" exists (ID %d)",
201 vol->usable_leb_size = ubi->leb_size - ubi->leb_size % req->alignment;
206 if (vol->reserved_pebs > ubi->avail_pebs) {
207 ubi_err(ubi, "not enough PEBs, only %d available",
208 ubi->avail_pebs);
209 if (ubi->corr_peb_count)
210 ubi_err(ubi, "%d PEBs are corrupted and not used",
211 ubi->corr_peb_count);
215 ubi->avail_pebs -= vol->reserved_pebs;
216 ubi->rsvd_pebs += vol->reserved_pebs;
217 spin_unlock(&ubi->volumes_lock);
221 vol->data_pad = ubi->leb_size % vol->alignment;
225 vol->ubi = ubi;
231 err = ubi_wl_flush(ubi, vol_id, UBI_ALL);
259 spin_lock(&ubi->volumes_lock);
260 ubi->volumes[vol_id] = vol;
261 ubi->vol_count += 1;
262 spin_unlock(&ubi->volumes_lock);
268 vol->dev.devt = MKDEV(MAJOR(ubi->cdev.dev), vol_id + 1);
269 dev_set_name(&vol->dev, "%s_%d", ubi->ubi_name, vol->vol_id);
272 ubi_err(ubi, "cannot add device");
292 err = ubi_change_vtbl_record(ubi, vol_id, &vtbl_rec);
296 ubi_volume_notify(ubi, vol, UBI_VOLUME_ADDED);
297 self_check_volumes(ubi);
308 spin_lock(&ubi->volumes_lock);
309 ubi->volumes[vol_id] = NULL;
310 ubi->vol_count -= 1;
311 spin_unlock(&ubi->volumes_lock);
313 spin_lock(&ubi->volumes_lock);
314 ubi->rsvd_pebs -= vol->reserved_pebs;
315 ubi->avail_pebs += vol->reserved_pebs;
317 spin_unlock(&ubi->volumes_lock);
319 ubi_err(ubi, "cannot create volume %d, error %d", vol_id, err);
330 * code in case of failure. The caller has to have the @ubi->device_mutex
336 struct ubi_device *ubi = vol->ubi;
339 dbg_gen("remove device %d, volume %d", ubi->ubi_num, vol_id);
341 ubi_assert(vol == ubi->volumes[vol_id]);
343 if (ubi->ro_mode)
346 spin_lock(&ubi->volumes_lock);
355 ubi->volumes[vol_id] = NULL;
356 spin_unlock(&ubi->volumes_lock);
359 err = ubi_change_vtbl_record(ubi, vol_id, NULL);
365 err = ubi_eba_unmap_leb(ubi, vol, i);
373 spin_lock(&ubi->volumes_lock);
374 ubi->rsvd_pebs -= reserved_pebs;
375 ubi->avail_pebs += reserved_pebs;
376 ubi_update_reserved(ubi);
377 ubi->vol_count -= 1;
378 spin_unlock(&ubi->volumes_lock);
380 ubi_volume_notify(ubi, vol, UBI_VOLUME_REMOVED);
382 self_check_volumes(ubi);
387 ubi_err(ubi, "cannot remove volume %d, error %d", vol_id, err);
388 spin_lock(&ubi->volumes_lock);
389 ubi->volumes[vol_id] = vol;
391 spin_unlock(&ubi->volumes_lock);
402 * @ubi->device_mutex locked.
408 struct ubi_device *ubi = vol->ubi;
413 if (ubi->ro_mode)
417 ubi->ubi_num, vol_id, vol->reserved_pebs, reserved_pebs);
421 ubi_err(ubi, "too small size %d, %d LEBs contain data",
434 spin_lock(&ubi->volumes_lock);
436 spin_unlock(&ubi->volumes_lock);
440 spin_unlock(&ubi->volumes_lock);
445 spin_lock(&ubi->volumes_lock);
446 if (pebs > ubi->avail_pebs) {
447 ubi_err(ubi, "not enough PEBs: requested %d, available %d",
448 pebs, ubi->avail_pebs);
449 if (ubi->corr_peb_count)
450 ubi_err(ubi, "%d PEBs are corrupted and not used",
451 ubi->corr_peb_count);
452 spin_unlock(&ubi->volumes_lock);
456 ubi->avail_pebs -= pebs;
457 ubi->rsvd_pebs += pebs;
460 spin_unlock(&ubi->volumes_lock);
465 err = ubi_eba_unmap_leb(ubi, vol, reserved_pebs + i);
469 spin_lock(&ubi->volumes_lock);
470 ubi->rsvd_pebs += pebs;
471 ubi->avail_pebs -= pebs;
472 ubi_update_reserved(ubi);
475 spin_unlock(&ubi->volumes_lock);
484 err = ubi_wl_flush(ubi, vol_id, UBI_ALL);
490 vtbl_rec = ubi->vtbl[vol_id];
492 err = ubi_change_vtbl_record(ubi, vol_id, &vtbl_rec);
504 ubi_volume_notify(ubi, vol, UBI_VOLUME_RESIZED);
505 self_check_volumes(ubi);
510 spin_lock(&ubi->volumes_lock);
511 ubi->rsvd_pebs -= pebs;
512 ubi->avail_pebs += pebs;
513 spin_unlock(&ubi->volumes_lock);
524 * @ubi: UBI device description object
531 int ubi_rename_volumes(struct ubi_device *ubi, struct list_head *rename_list)
536 err = ubi_vtbl_rename_volumes(ubi, rename_list);
548 spin_lock(&ubi->volumes_lock);
551 spin_unlock(&ubi->volumes_lock);
552 ubi_volume_notify(ubi, vol, UBI_VOLUME_RENAMED);
557 self_check_volumes(ubi);
563 * @ubi: UBI device description object
570 int ubi_add_volume(struct ubi_device *ubi, struct ubi_volume *vol)
580 dev = MKDEV(MAJOR(ubi->cdev.dev), vol->vol_id + 1);
583 ubi_err(ubi, "cannot add character device for volume %d, error %d",
590 vol->dev.parent = &ubi->dev;
594 dev_set_name(&vol->dev, "%s_%d", ubi->ubi_name, vol->vol_id);
602 self_check_volumes(ubi);
608 * @ubi: UBI device description object
614 void ubi_free_volume(struct ubi_device *ubi, struct ubi_volume *vol)
618 ubi->volumes[vol->vol_id] = NULL;
625 * @ubi: UBI device description object
630 static int self_check_volume(struct ubi_device *ubi, int vol_id)
632 int idx = vol_id2idx(ubi, vol_id);
638 spin_lock(&ubi->volumes_lock);
639 reserved_pebs = be32_to_cpu(ubi->vtbl[vol_id].reserved_pebs);
640 vol = ubi->volumes[idx];
644 ubi_err(ubi, "no volume info, but volume exists");
647 spin_unlock(&ubi->volumes_lock);
653 ubi_err(ubi, "negative values");
656 if (vol->alignment > ubi->leb_size || vol->alignment == 0) {
657 ubi_err(ubi, "bad alignment");
661 n = vol->alignment & (ubi->min_io_size - 1);
663 ubi_err(ubi, "alignment is not multiple of min I/O unit");
667 n = ubi->leb_size % vol->alignment;
669 ubi_err(ubi, "bad data_pad, has to be %lld", n);
675 ubi_err(ubi, "bad vol_type");
680 ubi_err(ubi, "update marker and corrupted simultaneously");
684 if (vol->reserved_pebs > ubi->good_peb_count) {
685 ubi_err(ubi, "too large reserved_pebs");
689 n = ubi->leb_size - vol->data_pad;
690 if (vol->usable_leb_size != ubi->leb_size - vol->data_pad) {
691 ubi_err(ubi, "bad usable_leb_size, has to be %lld", n);
696 ubi_err(ubi, "too long volume name, max is %d",
703 ubi_err(ubi, "bad name_len %lld", n);
710 ubi_err(ubi, "corrupted dynamic volume");
714 ubi_err(ubi, "bad used_ebs");
718 ubi_err(ubi, "bad last_eb_bytes");
722 ubi_err(ubi, "bad used_bytes");
727 ubi_err(ubi, "bad skip_check");
732 ubi_err(ubi, "bad used_ebs");
737 ubi_err(ubi, "bad last_eb_bytes");
742 ubi_err(ubi, "bad used_bytes");
747 alignment = be32_to_cpu(ubi->vtbl[vol_id].alignment);
748 data_pad = be32_to_cpu(ubi->vtbl[vol_id].data_pad);
749 name_len = be16_to_cpu(ubi->vtbl[vol_id].name_len);
750 upd_marker = ubi->vtbl[vol_id].upd_marker;
751 name = &ubi->vtbl[vol_id].name[0];
752 if (ubi->vtbl[vol_id].vol_type == UBI_VID_DYNAMIC)
760 ubi_err(ubi, "volume info is different");
764 spin_unlock(&ubi->volumes_lock);
768 ubi_err(ubi, "self-check failed for volume %d", vol_id);
771 ubi_dump_vtbl_record(&ubi->vtbl[vol_id], vol_id);
773 spin_unlock(&ubi->volumes_lock);
779 * @ubi: UBI device description object
783 static int self_check_volumes(struct ubi_device *ubi)
787 if (!ubi_dbg_chk_gen(ubi))
790 for (i = 0; i < ubi->vtbl_slots; i++) {
791 err = self_check_volume(ubi, i);