Lines Matching +full:out +full:- +full:volume +full:- +full:limit
17 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
50 /* Maximum number of comma-separated items in the 'mtd=' parameter */
63 * struct mtd_dev_param - MTD device parameter description data structure.
82 /* UBI module parameter to enable fastmap automatically on non-fastmap images */
87 /* Slab cache for wear-leveling entries */
103 /* Protects @ubi_devices and @ubi->ref_count */
158 * ubi_volume_notify - send a volume change notification.
160 * @vol: volume description object of the changed volume
163 * This is a helper function which notifies all subscribers about a volume
164 * change event (creation, removal, re-sizing, re-naming, updating). Returns
189 * ubi_notify_all - send a notification to all volumes.
195 * notification for each volume. If @nb is %NULL, then all registered notifiers
206 mutex_lock(&ubi->device_mutex); in ubi_notify_all()
207 for (i = 0; i < ubi->vtbl_slots; i++) { in ubi_notify_all()
209 * Since the @ubi->device is locked, and we are not going to in ubi_notify_all()
210 * change @ubi->volumes, we do not have to lock in ubi_notify_all()
211 * @ubi->volumes_lock. in ubi_notify_all()
213 if (!ubi->volumes[i]) in ubi_notify_all()
216 ubi_do_get_volume_info(ubi, ubi->volumes[i], &nt.vi); in ubi_notify_all()
218 nb->notifier_call(nb, ntype, &nt); in ubi_notify_all()
224 mutex_unlock(&ubi->device_mutex); in ubi_notify_all()
230 * ubi_enumerate_volumes - send "add" notification for all existing volumes.
234 * %UBI_VOLUME_ADDED notification for each volume. If @nb is %NULL, then all
258 * ubi_get_device - get UBI device.
273 ubi_assert(ubi->ref_count >= 0); in ubi_get_device()
274 ubi->ref_count += 1; in ubi_get_device()
275 get_device(&ubi->dev); in ubi_get_device()
283 * ubi_put_device - drop an UBI device reference.
289 ubi->ref_count -= 1; in ubi_put_device()
290 put_device(&ubi->dev); in ubi_put_device()
295 * ubi_get_by_major - get UBI device by character device major number.
309 if (ubi && MAJOR(ubi->cdev.dev) == major) { in ubi_get_by_major()
310 ubi_assert(ubi->ref_count >= 0); in ubi_get_by_major()
311 ubi->ref_count += 1; in ubi_get_by_major()
312 get_device(&ubi->dev); in ubi_get_by_major()
323 * ubi_major2num - get UBI device number by character device major number.
327 * device was not found, this function returns -ENODEV, otherwise the UBI device
332 int i, ubi_num = -ENODEV; in ubi_major2num()
338 if (ubi && MAJOR(ubi->cdev.dev) == major) { in ubi_major2num()
339 ubi_num = ubi->ubi_num; in ubi_major2num()
360 * 'ubi_get_device()' will return -ENODEV and we fail. in dev_attribute_show()
363 * we still can use 'ubi->ubi_num'. in dev_attribute_show()
366 ubi = ubi_get_device(ubi->ubi_num); in dev_attribute_show()
368 return -ENODEV; in dev_attribute_show()
371 ret = sprintf(buf, "%d\n", ubi->leb_size); in dev_attribute_show()
373 ret = sprintf(buf, "%d\n", ubi->avail_pebs); in dev_attribute_show()
375 ret = sprintf(buf, "%d\n", ubi->good_peb_count); in dev_attribute_show()
377 ret = sprintf(buf, "%d\n", ubi->vol_count - UBI_INT_VOL_COUNT); in dev_attribute_show()
379 ret = sprintf(buf, "%d\n", ubi->max_ec); in dev_attribute_show()
381 ret = sprintf(buf, "%d\n", ubi->beb_rsvd_pebs); in dev_attribute_show()
383 ret = sprintf(buf, "%d\n", ubi->bad_peb_count); in dev_attribute_show()
385 ret = sprintf(buf, "%d\n", ubi->vtbl_slots); in dev_attribute_show()
387 ret = sprintf(buf, "%d\n", ubi->min_io_size); in dev_attribute_show()
389 ret = sprintf(buf, "%d\n", ubi->thread_enabled); in dev_attribute_show()
391 ret = sprintf(buf, "%d\n", ubi->mtd->index); in dev_attribute_show()
393 ret = sprintf(buf, "%d\n", ubi->ro_mode); in dev_attribute_show()
395 ret = -EINVAL; in dev_attribute_show()
426 * kill_volumes - destroy all user volumes.
433 for (i = 0; i < ubi->vtbl_slots; i++) in kill_volumes()
434 if (ubi->volumes[i]) in kill_volumes()
435 ubi_free_volume(ubi, ubi->volumes[i]); in kill_volumes()
439 * uif_init - initialize user interfaces for an UBI device.
454 sprintf(ubi->ubi_name, UBI_NAME_STR "%d", ubi->ubi_num); in uif_init()
458 * dynamically. Major numbers of volume character devices are in uif_init()
461 * volume character devices start from 1. Thus, we allocate one major in uif_init()
462 * number and ubi->vtbl_slots + 1 minor numbers. in uif_init()
464 err = alloc_chrdev_region(&dev, 0, ubi->vtbl_slots + 1, ubi->ubi_name); in uif_init()
470 ubi->dev.devt = dev; in uif_init()
473 cdev_init(&ubi->cdev, &ubi_cdev_operations); in uif_init()
474 dbg_gen("%s major is %u", ubi->ubi_name, MAJOR(dev)); in uif_init()
475 ubi->cdev.owner = THIS_MODULE; in uif_init()
477 dev_set_name(&ubi->dev, UBI_NAME_STR "%d", ubi->ubi_num); in uif_init()
478 err = cdev_device_add(&ubi->cdev, &ubi->dev); in uif_init()
482 for (i = 0; i < ubi->vtbl_slots; i++) in uif_init()
483 if (ubi->volumes[i]) { in uif_init()
484 err = ubi_add_volume(ubi, ubi->volumes[i]); in uif_init()
486 ubi_err(ubi, "cannot add volume %d", i); in uif_init()
495 cdev_device_del(&ubi->cdev, &ubi->dev); in uif_init()
497 unregister_chrdev_region(ubi->cdev.dev, ubi->vtbl_slots + 1); in uif_init()
499 ubi->ubi_name, err); in uif_init()
504 * uif_close - close user interfaces for an UBI device.
507 * Note, since this function un-registers UBI volume device objects (@vol->dev),
514 cdev_device_del(&ubi->cdev, &ubi->dev); in uif_close()
515 unregister_chrdev_region(ubi->cdev.dev, ubi->vtbl_slots + 1); in uif_close()
519 * ubi_free_internal_volumes - free internal volumes.
526 for (i = ubi->vtbl_slots; in ubi_free_internal_volumes()
527 i < ubi->vtbl_slots + UBI_INT_VOL_COUNT; i++) { in ubi_free_internal_volumes()
528 ubi_eba_replace_table(ubi->volumes[i], NULL); in ubi_free_internal_volumes()
529 ubi_fastmap_destroy_checkmap(ubi->volumes[i]); in ubi_free_internal_volumes()
530 kfree(ubi->volumes[i]); in ubi_free_internal_volumes()
536 int limit, device_pebs; in get_bad_peb_limit() local
543 * limit if it is supported by the device. in get_bad_peb_limit()
545 limit = mtd_max_bad_blocks(ubi->mtd, 0, ubi->mtd->size); in get_bad_peb_limit()
546 if (limit < 0) in get_bad_peb_limit()
548 return limit; in get_bad_peb_limit()
558 * the MTD partition we are attaching (ubi->mtd). in get_bad_peb_limit()
560 device_size = mtd_get_device_size(ubi->mtd); in get_bad_peb_limit()
561 device_pebs = mtd_div_by_eb(device_size, ubi->mtd); in get_bad_peb_limit()
562 limit = mult_frac(device_pebs, max_beb_per1024, 1024); in get_bad_peb_limit()
565 if (mult_frac(limit, 1024, max_beb_per1024) < device_pebs) in get_bad_peb_limit()
566 limit += 1; in get_bad_peb_limit()
568 return limit; in get_bad_peb_limit()
572 * io_init - initialize I/O sub-system for a given UBI device.
576 * If @ubi->vid_hdr_offset or @ubi->leb_start is zero, default offsets are
578 * o EC header is always at offset zero - this cannot be changed;
580 * aligned to @io->hdrs_min_io_size;
582 * @io->min_io_size
592 if (ubi->mtd->numeraseregions != 0) { in io_init()
596 * characteristics. It looks like mostly multi-region flashes in io_init()
603 return -EINVAL; in io_init()
606 if (ubi->vid_hdr_offset < 0) in io_init()
607 return -EINVAL; in io_init()
614 ubi->peb_size = ubi->mtd->erasesize; in io_init()
615 ubi->peb_count = mtd_div_by_eb(ubi->mtd->size, ubi->mtd); in io_init()
616 ubi->flash_size = ubi->mtd->size; in io_init()
618 if (mtd_can_have_bb(ubi->mtd)) { in io_init()
619 ubi->bad_allowed = 1; in io_init()
620 ubi->bad_peb_limit = get_bad_peb_limit(ubi, max_beb_per1024); in io_init()
623 if (ubi->mtd->type == MTD_NORFLASH) { in io_init()
624 ubi_assert(ubi->mtd->writesize == 1); in io_init()
625 ubi->nor_flash = 1; in io_init()
628 ubi->min_io_size = ubi->mtd->writesize; in io_init()
629 ubi->hdrs_min_io_size = ubi->mtd->writesize >> ubi->mtd->subpage_sft; in io_init()
636 if (!is_power_of_2(ubi->min_io_size)) { in io_init()
638 ubi->min_io_size); in io_init()
639 return -EINVAL; in io_init()
642 ubi_assert(ubi->hdrs_min_io_size > 0); in io_init()
643 ubi_assert(ubi->hdrs_min_io_size <= ubi->min_io_size); in io_init()
644 ubi_assert(ubi->min_io_size % ubi->hdrs_min_io_size == 0); in io_init()
646 ubi->max_write_size = ubi->mtd->writebufsize; in io_init()
651 if (ubi->max_write_size < ubi->min_io_size || in io_init()
652 ubi->max_write_size % ubi->min_io_size || in io_init()
653 !is_power_of_2(ubi->max_write_size)) { in io_init()
655 ubi->max_write_size, ubi->min_io_size); in io_init()
656 return -EINVAL; in io_init()
660 ubi->ec_hdr_alsize = ALIGN(UBI_EC_HDR_SIZE, ubi->hdrs_min_io_size); in io_init()
661 ubi->vid_hdr_alsize = ALIGN(UBI_VID_HDR_SIZE, ubi->hdrs_min_io_size); in io_init()
663 dbg_gen("min_io_size %d", ubi->min_io_size); in io_init()
664 dbg_gen("max_write_size %d", ubi->max_write_size); in io_init()
665 dbg_gen("hdrs_min_io_size %d", ubi->hdrs_min_io_size); in io_init()
666 dbg_gen("ec_hdr_alsize %d", ubi->ec_hdr_alsize); in io_init()
667 dbg_gen("vid_hdr_alsize %d", ubi->vid_hdr_alsize); in io_init()
669 if (ubi->vid_hdr_offset == 0) in io_init()
671 ubi->vid_hdr_offset = ubi->vid_hdr_aloffset = in io_init()
672 ubi->ec_hdr_alsize; in io_init()
674 ubi->vid_hdr_aloffset = ubi->vid_hdr_offset & in io_init()
675 ~(ubi->hdrs_min_io_size - 1); in io_init()
676 ubi->vid_hdr_shift = ubi->vid_hdr_offset - in io_init()
677 ubi->vid_hdr_aloffset; in io_init()
681 ubi->leb_start = ubi->vid_hdr_offset + UBI_VID_HDR_SIZE; in io_init()
682 ubi->leb_start = ALIGN(ubi->leb_start, ubi->min_io_size); in io_init()
684 dbg_gen("vid_hdr_offset %d", ubi->vid_hdr_offset); in io_init()
685 dbg_gen("vid_hdr_aloffset %d", ubi->vid_hdr_aloffset); in io_init()
686 dbg_gen("vid_hdr_shift %d", ubi->vid_hdr_shift); in io_init()
687 dbg_gen("leb_start %d", ubi->leb_start); in io_init()
689 /* The shift must be aligned to 32-bit boundary */ in io_init()
690 if (ubi->vid_hdr_shift % 4) { in io_init()
692 ubi->vid_hdr_shift); in io_init()
693 return -EINVAL; in io_init()
697 if (ubi->vid_hdr_offset < UBI_EC_HDR_SIZE || in io_init()
698 ubi->leb_start < ubi->vid_hdr_offset + UBI_VID_HDR_SIZE || in io_init()
699 ubi->leb_start > ubi->peb_size - UBI_VID_HDR_SIZE || in io_init()
700 ubi->leb_start & (ubi->min_io_size - 1)) { in io_init()
702 ubi->vid_hdr_offset, ubi->leb_start); in io_init()
703 return -EINVAL; in io_init()
710 ubi->max_erroneous = ubi->peb_count / 10; in io_init()
711 if (ubi->max_erroneous < 16) in io_init()
712 ubi->max_erroneous = 16; in io_init()
713 dbg_gen("max_erroneous %d", ubi->max_erroneous); in io_init()
718 * read-only mode. in io_init()
720 if (ubi->vid_hdr_offset + UBI_VID_HDR_SIZE <= ubi->hdrs_min_io_size) { in io_init()
721 ubi_warn(ubi, "EC and VID headers are in the same minimal I/O unit, switch to read-only mode"); in io_init()
722 ubi->ro_mode = 1; in io_init()
725 ubi->leb_size = ubi->peb_size - ubi->leb_start; in io_init()
727 if (!(ubi->mtd->flags & MTD_WRITEABLE)) { in io_init()
728 ubi_msg(ubi, "MTD device %d is write-protected, attach in read-only mode", in io_init()
729 ubi->mtd->index); in io_init()
730 ubi->ro_mode = 1; in io_init()
734 * Note, ideally, we have to initialize @ubi->bad_peb_count here. But in io_init()
736 * over all physical eraseblocks and invoke mtd->block_is_bad() for in io_init()
737 * each physical eraseblock. So, we leave @ubi->bad_peb_count in io_init()
745 * autoresize - re-size the volume which has the "auto-resize" flag set.
747 * @vol_id: ID of the volume to re-size
749 * This function re-sizes the volume marked by the %UBI_VTBL_AUTORESIZE_FLG in
750 * the volume table to the largest possible size. See comments in ubi-header.h
757 struct ubi_volume *vol = ubi->volumes[vol_id]; in autoresize()
758 int err, old_reserved_pebs = vol->reserved_pebs; in autoresize()
760 if (ubi->ro_mode) { in autoresize()
761 ubi_warn(ubi, "skip auto-resize because of R/O mode"); in autoresize()
766 * Clear the auto-resize flag in the volume in-memory copy of the in autoresize()
767 * volume table, and 'ubi_resize_volume()' will propagate this change in autoresize()
770 ubi->vtbl[vol_id].flags &= ~UBI_VTBL_AUTORESIZE_FLG; in autoresize()
772 if (ubi->avail_pebs == 0) { in autoresize()
776 * No available PEBs to re-size the volume, clear the flag on in autoresize()
779 vtbl_rec = ubi->vtbl[vol_id]; in autoresize()
782 ubi_err(ubi, "cannot clean auto-resize flag for volume %d", in autoresize()
787 old_reserved_pebs + ubi->avail_pebs); in autoresize()
789 ubi_err(ubi, "cannot auto-resize volume %d", in autoresize()
796 ubi_msg(ubi, "volume %d (\"%s\") re-sized from %d to %d LEBs", in autoresize()
797 vol_id, vol->name, old_reserved_pebs, vol->reserved_pebs); in autoresize()
802 * ubi_attach_mtd_dev - attach an MTD device.
824 return -EINVAL; in ubi_attach_mtd_dev()
837 if (ubi && mtd->index == ubi->mtd->index) { in ubi_attach_mtd_dev()
839 mtd->index, i); in ubi_attach_mtd_dev()
840 return -EEXIST; in ubi_attach_mtd_dev()
845 * Make sure this MTD device is not emulated on top of an UBI volume in ubi_attach_mtd_dev()
852 if (mtd->type == MTD_UBIVOLUME) { in ubi_attach_mtd_dev()
853 pr_err("ubi: refuse attaching mtd%d - it is already emulated on top of UBI\n", in ubi_attach_mtd_dev()
854 mtd->index); in ubi_attach_mtd_dev()
855 return -EINVAL; in ubi_attach_mtd_dev()
863 if (mtd->type == MTD_MLCNANDFLASH) { in ubi_attach_mtd_dev()
864 pr_err("ubi: refuse attaching mtd%d - MLC NAND is not supported\n", in ubi_attach_mtd_dev()
865 mtd->index); in ubi_attach_mtd_dev()
866 return -EINVAL; in ubi_attach_mtd_dev()
877 return -ENFILE; in ubi_attach_mtd_dev()
881 return -EINVAL; in ubi_attach_mtd_dev()
886 return -EEXIST; in ubi_attach_mtd_dev()
892 return -ENOMEM; in ubi_attach_mtd_dev()
894 device_initialize(&ubi->dev); in ubi_attach_mtd_dev()
895 ubi->dev.release = dev_release; in ubi_attach_mtd_dev()
896 ubi->dev.class = &ubi_class; in ubi_attach_mtd_dev()
897 ubi->dev.groups = ubi_dev_groups; in ubi_attach_mtd_dev()
899 ubi->mtd = mtd; in ubi_attach_mtd_dev()
900 ubi->ubi_num = ubi_num; in ubi_attach_mtd_dev()
901 ubi->vid_hdr_offset = vid_hdr_offset; in ubi_attach_mtd_dev()
902 ubi->autoresize_vol_id = -1; in ubi_attach_mtd_dev()
905 ubi->fm_pool.used = ubi->fm_pool.size = 0; in ubi_attach_mtd_dev()
906 ubi->fm_wl_pool.used = ubi->fm_wl_pool.size = 0; in ubi_attach_mtd_dev()
912 ubi->fm_pool.max_size = min(((int)mtd_div_by_eb(ubi->mtd->size, in ubi_attach_mtd_dev()
913 ubi->mtd) / 100) * 5, UBI_FM_MAX_POOL_SIZE); in ubi_attach_mtd_dev()
914 ubi->fm_pool.max_size = max(ubi->fm_pool.max_size, in ubi_attach_mtd_dev()
917 ubi->fm_wl_pool.max_size = ubi->fm_pool.max_size / 2; in ubi_attach_mtd_dev()
918 ubi->fm_disabled = !fm_autoconvert; in ubi_attach_mtd_dev()
922 if (!ubi->fm_disabled && (int)mtd_div_by_eb(ubi->mtd->size, ubi->mtd) in ubi_attach_mtd_dev()
926 ubi->fm_disabled = 1; in ubi_attach_mtd_dev()
929 ubi_msg(ubi, "default fastmap pool size: %d", ubi->fm_pool.max_size); in ubi_attach_mtd_dev()
931 ubi->fm_wl_pool.max_size); in ubi_attach_mtd_dev()
933 ubi->fm_disabled = 1; in ubi_attach_mtd_dev()
935 mutex_init(&ubi->buf_mutex); in ubi_attach_mtd_dev()
936 mutex_init(&ubi->ckvol_mutex); in ubi_attach_mtd_dev()
937 mutex_init(&ubi->device_mutex); in ubi_attach_mtd_dev()
938 spin_lock_init(&ubi->volumes_lock); in ubi_attach_mtd_dev()
939 init_rwsem(&ubi->fm_protect); in ubi_attach_mtd_dev()
940 init_rwsem(&ubi->fm_eba_sem); in ubi_attach_mtd_dev()
942 ubi_msg(ubi, "attaching mtd%d", mtd->index); in ubi_attach_mtd_dev()
948 err = -ENOMEM; in ubi_attach_mtd_dev()
949 ubi->peb_buf = vmalloc(ubi->peb_size); in ubi_attach_mtd_dev()
950 if (!ubi->peb_buf) in ubi_attach_mtd_dev()
954 ubi->fm_size = ubi_calc_fm_size(ubi); in ubi_attach_mtd_dev()
955 ubi->fm_buf = vzalloc(ubi->fm_size); in ubi_attach_mtd_dev()
956 if (!ubi->fm_buf) in ubi_attach_mtd_dev()
962 mtd->index, err); in ubi_attach_mtd_dev()
966 if (ubi->autoresize_vol_id != -1) { in ubi_attach_mtd_dev()
967 err = autoresize(ubi, ubi->autoresize_vol_id); in ubi_attach_mtd_dev()
983 ubi->bgt_thread = kthread_create(ubi_thread, ubi, "%s", ubi->bgt_name); in ubi_attach_mtd_dev()
984 if (IS_ERR(ubi->bgt_thread)) { in ubi_attach_mtd_dev()
985 err = PTR_ERR(ubi->bgt_thread); in ubi_attach_mtd_dev()
987 ubi->bgt_name, err); in ubi_attach_mtd_dev()
992 mtd->index, mtd->name, ubi->flash_size >> 20); in ubi_attach_mtd_dev()
994 ubi->peb_size, ubi->peb_size >> 10, ubi->leb_size); in ubi_attach_mtd_dev()
995 ubi_msg(ubi, "min./max. I/O unit sizes: %d/%d, sub-page size %d", in ubi_attach_mtd_dev()
996 ubi->min_io_size, ubi->max_write_size, ubi->hdrs_min_io_size); in ubi_attach_mtd_dev()
998 ubi->vid_hdr_offset, ubi->vid_hdr_aloffset, ubi->leb_start); in ubi_attach_mtd_dev()
1000 ubi->good_peb_count, ubi->bad_peb_count, ubi->corr_peb_count); in ubi_attach_mtd_dev()
1001 ubi_msg(ubi, "user volume: %d, internal volumes: %d, max. volumes count: %d", in ubi_attach_mtd_dev()
1002 ubi->vol_count - UBI_INT_VOL_COUNT, UBI_INT_VOL_COUNT, in ubi_attach_mtd_dev()
1003 ubi->vtbl_slots); in ubi_attach_mtd_dev()
1005 ubi->max_ec, ubi->mean_ec, CONFIG_MTD_UBI_WL_THRESHOLD, in ubi_attach_mtd_dev()
1006 ubi->image_seq); in ubi_attach_mtd_dev()
1008 ubi->avail_pebs, ubi->rsvd_pebs, ubi->beb_rsvd_pebs); in ubi_attach_mtd_dev()
1012 * checks @ubi->thread_enabled. Otherwise we may fail to wake it up. in ubi_attach_mtd_dev()
1014 spin_lock(&ubi->wl_lock); in ubi_attach_mtd_dev()
1015 ubi->thread_enabled = 1; in ubi_attach_mtd_dev()
1016 wake_up_process(ubi->bgt_thread); in ubi_attach_mtd_dev()
1017 spin_unlock(&ubi->wl_lock); in ubi_attach_mtd_dev()
1030 vfree(ubi->vtbl); in ubi_attach_mtd_dev()
1032 vfree(ubi->peb_buf); in ubi_attach_mtd_dev()
1033 vfree(ubi->fm_buf); in ubi_attach_mtd_dev()
1034 put_device(&ubi->dev); in ubi_attach_mtd_dev()
1039 * ubi_detach_mtd_dev - detach an MTD device.
1044 * underlying MTD device. Returns zero in case of success and %-EBUSY if the
1045 * UBI device is busy and cannot be destroyed, and %-EINVAL if it does not
1056 return -EINVAL; in ubi_detach_mtd_dev()
1060 return -EINVAL; in ubi_detach_mtd_dev()
1063 put_device(&ubi->dev); in ubi_detach_mtd_dev()
1064 ubi->ref_count -= 1; in ubi_detach_mtd_dev()
1065 if (ubi->ref_count) { in ubi_detach_mtd_dev()
1068 return -EBUSY; in ubi_detach_mtd_dev()
1072 ubi->ubi_name, ubi->ref_count); in ubi_detach_mtd_dev()
1077 ubi_assert(ubi_num == ubi->ubi_num); in ubi_detach_mtd_dev()
1079 ubi_msg(ubi, "detaching mtd%d", ubi->mtd->index); in ubi_detach_mtd_dev()
1092 if (ubi->bgt_thread) in ubi_detach_mtd_dev()
1093 kthread_stop(ubi->bgt_thread); in ubi_detach_mtd_dev()
1096 cancel_work_sync(&ubi->fm_work); in ubi_detach_mtd_dev()
1103 vfree(ubi->vtbl); in ubi_detach_mtd_dev()
1104 vfree(ubi->peb_buf); in ubi_detach_mtd_dev()
1105 vfree(ubi->fm_buf); in ubi_detach_mtd_dev()
1106 ubi_msg(ubi, "mtd%d is detached", ubi->mtd->index); in ubi_detach_mtd_dev()
1107 put_mtd_device(ubi->mtd); in ubi_detach_mtd_dev()
1108 put_device(&ubi->dev); in ubi_detach_mtd_dev()
1113 * open_mtd_by_chdev - open an MTD device by its character device node path.
1138 return ERR_PTR(-EINVAL); in open_mtd_by_chdev()
1147 return ERR_PTR(-EINVAL); in open_mtd_by_chdev()
1153 * open_mtd_device - open MTD device by name, character device path, or number.
1175 if (IS_ERR(mtd) && PTR_ERR(mtd) == -ENODEV) in open_mtd_device()
1195 return -EINVAL; in ubi_init()
1206 goto out; in ubi_init()
1213 err = -ENOMEM; in ubi_init()
1229 mtd = open_mtd_device(p->name); in ubi_init()
1233 p->name, err); in ubi_init()
1234 /* See comment below re-ubi_is_module(). */ in ubi_init()
1241 err = ubi_attach_mtd_dev(mtd, p->ubi_num, in ubi_init()
1242 p->vid_hdr_offs, p->max_beb_per1024); in ubi_init()
1246 mtd->index); in ubi_init()
1251 * However, later on it was found out that this in ubi_init()
1258 * non-module case, but preserved the old behavior for in ubi_init()
1271 /* See comment above re-ubi_is_module(). */ in ubi_init()
1282 ubi_detach_mtd_dev(ubi_devices[k]->ubi_num, 1); in ubi_init()
1290 out: in ubi_init()
1306 ubi_detach_mtd_dev(ubi_devices[i]->ubi_num, 1); in ubi_exit()
1317 * bytes_str_to_int - convert a number of bytes string into an integer.
1331 return -EINVAL; in bytes_str_to_int()
1347 return -EINVAL; in bytes_str_to_int()
1354 * ubi_mtd_param_parse - parse the 'mtd=' UBI parameter.
1370 return -EINVAL; in ubi_mtd_param_parse()
1375 return -EINVAL; in ubi_mtd_param_parse()
1382 return -EINVAL; in ubi_mtd_param_parse()
1386 pr_warn("UBI warning: empty 'mtd=' parameter - ignored\n"); in ubi_mtd_param_parse()
1393 if (buf[len - 1] == '\n') in ubi_mtd_param_parse()
1394 buf[len - 1] = '\0'; in ubi_mtd_param_parse()
1401 return -EINVAL; in ubi_mtd_param_parse()
1405 strcpy(&p->name[0], tokens[0]); in ubi_mtd_param_parse()
1409 p->vid_hdr_offs = bytes_str_to_int(token); in ubi_mtd_param_parse()
1411 if (p->vid_hdr_offs < 0) in ubi_mtd_param_parse()
1412 return p->vid_hdr_offs; in ubi_mtd_param_parse()
1417 int err = kstrtoint(token, 10, &p->max_beb_per1024); in ubi_mtd_param_parse()
1422 return -EINVAL; in ubi_mtd_param_parse()
1428 int err = kstrtoint(token, 10, &p->ubi_num); in ubi_mtd_param_parse()
1433 return -EINVAL; in ubi_mtd_param_parse()
1436 p->ubi_num = UBI_DEV_NUM_AUTO; in ubi_mtd_param_parse()
1451 "Example 1: mtd=/dev/mtd0 - attach MTD device /dev/mtd0.\n"
1452 …"Example 2: mtd=content,1984 mtd=4 - attach MTD device with name \"content\" using VID header offs…
1453 …"Example 3: mtd=/dev/mtd1,0,25 - attach MTD device /dev/mtd1 using default VID header offset and r…
1454 …"Example 4: mtd=/dev/mtd1,0,0,5 - attach MTD device /dev/mtd1 to UBI 5 and using default values fo…
1463 MODULE_DESCRIPTION("UBI - Unsorted Block Images");