Lines Matching refs:c
67 static int validate_inode(struct ubifs_info *c, const struct inode *inode) in validate_inode() argument
72 if (inode->i_size > c->max_inode_sz) { in validate_inode()
73 ubifs_err(c, "inode is too large (%lld)", in validate_inode()
79 ubifs_err(c, "unknown compression type %d", ui->compr_type); in validate_inode()
92 if (!ubifs_compr_present(c, ui->compr_type)) { in validate_inode()
93 ubifs_warn(c, "inode %lu uses '%s' compression, but it was not compiled in", in validate_inode()
94 inode->i_ino, ubifs_compr_name(c, ui->compr_type)); in validate_inode()
97 err = dbg_check_dir(c, inode); in validate_inode()
106 struct ubifs_info *c = sb->s_fs_info; in ubifs_iget() local
125 ino_key_init(c, &key, inode->i_ino); in ubifs_iget()
127 err = ubifs_tnc_lookup(c, &key, ino); in ubifs_iget()
158 err = validate_inode(c, inode); in ubifs_iget()
248 ubifs_err(c, "inode %lu validation failed, error %d", inode->i_ino, err); in ubifs_iget()
249 ubifs_dump_node(c, ino); in ubifs_iget()
250 ubifs_dump_inode(c, inode); in ubifs_iget()
255 ubifs_err(c, "failed to read inode %lu, error %d", inode->i_ino, err); in ubifs_iget()
296 struct ubifs_info *c = inode->i_sb->s_fs_info; in ubifs_write_inode() local
299 ubifs_assert(c, !ui->xattr); in ubifs_write_inode()
323 err = ubifs_jnl_write_inode(c, inode); in ubifs_write_inode()
325 ubifs_err(c, "can't write inode %lu, error %d", in ubifs_write_inode()
328 err = dbg_check_inode_size(c, inode, ui->ui_size); in ubifs_write_inode()
333 ubifs_release_dirty_inode_budget(c, ui); in ubifs_write_inode()
340 struct ubifs_info *c = inode->i_sb->s_fs_info; in ubifs_evict_inode() local
352 ubifs_assert(c, !atomic_read(&inode->i_count)); in ubifs_evict_inode()
363 err = ubifs_jnl_delete_inode(c, inode); in ubifs_evict_inode()
369 ubifs_err(c, "can't delete inode %lu, error %d", in ubifs_evict_inode()
374 ubifs_release_dirty_inode_budget(c, ui); in ubifs_evict_inode()
377 c->bi.nospace = c->bi.nospace_rp = 0; in ubifs_evict_inode()
387 struct ubifs_info *c = inode->i_sb->s_fs_info; in ubifs_dirty_inode() local
390 ubifs_assert(c, mutex_is_locked(&ui->ui_mutex)); in ubifs_dirty_inode()
399 struct ubifs_info *c = dentry->d_sb->s_fs_info; in ubifs_statfs() local
401 __le32 *uuid = (__le32 *)c->uuid; in ubifs_statfs()
403 free = ubifs_get_free_space(c); in ubifs_statfs()
409 buf->f_blocks = c->block_cnt; in ubifs_statfs()
411 if (free > c->report_rp_size) in ubifs_statfs()
412 buf->f_bavail = (free - c->report_rp_size) >> UBIFS_BLOCK_SHIFT; in ubifs_statfs()
420 ubifs_assert(c, buf->f_bfree <= c->block_cnt); in ubifs_statfs()
426 struct ubifs_info *c = root->d_sb->s_fs_info; in ubifs_show_options() local
428 if (c->mount_opts.unmount_mode == 2) in ubifs_show_options()
430 else if (c->mount_opts.unmount_mode == 1) in ubifs_show_options()
433 if (c->mount_opts.bulk_read == 2) in ubifs_show_options()
435 else if (c->mount_opts.bulk_read == 1) in ubifs_show_options()
438 if (c->mount_opts.chk_data_crc == 2) in ubifs_show_options()
440 else if (c->mount_opts.chk_data_crc == 1) in ubifs_show_options()
443 if (c->mount_opts.override_compr) { in ubifs_show_options()
445 ubifs_compr_name(c, c->mount_opts.compr_type)); in ubifs_show_options()
448 seq_printf(s, ",assert=%s", ubifs_assert_action_name(c)); in ubifs_show_options()
449 seq_printf(s, ",ubi=%d,vol=%d", c->vi.ubi_num, c->vi.vol_id); in ubifs_show_options()
457 struct ubifs_info *c = sb->s_fs_info; in ubifs_sync_fs() local
471 for (i = 0; i < c->jhead_cnt; i++) { in ubifs_sync_fs()
472 err = ubifs_wbuf_sync(&c->jheads[i].wbuf); in ubifs_sync_fs()
484 err = ubifs_run_commit(c); in ubifs_sync_fs()
488 return ubi_sync(c->vi.ubi_num); in ubifs_sync_fs()
500 static int init_constants_early(struct ubifs_info *c) in init_constants_early() argument
502 if (c->vi.corrupted) { in init_constants_early()
503 ubifs_warn(c, "UBI volume is corrupted - read-only mode"); in init_constants_early()
504 c->ro_media = 1; in init_constants_early()
507 if (c->di.ro_mode) { in init_constants_early()
508 ubifs_msg(c, "read-only UBI device"); in init_constants_early()
509 c->ro_media = 1; in init_constants_early()
512 if (c->vi.vol_type == UBI_STATIC_VOLUME) { in init_constants_early()
513 ubifs_msg(c, "static UBI volume - read-only mode"); in init_constants_early()
514 c->ro_media = 1; in init_constants_early()
517 c->leb_cnt = c->vi.size; in init_constants_early()
518 c->leb_size = c->vi.usable_leb_size; in init_constants_early()
519 c->leb_start = c->di.leb_start; in init_constants_early()
520 c->half_leb_size = c->leb_size / 2; in init_constants_early()
521 c->min_io_size = c->di.min_io_size; in init_constants_early()
522 c->min_io_shift = fls(c->min_io_size) - 1; in init_constants_early()
523 c->max_write_size = c->di.max_write_size; in init_constants_early()
524 c->max_write_shift = fls(c->max_write_size) - 1; in init_constants_early()
526 if (c->leb_size < UBIFS_MIN_LEB_SZ) { in init_constants_early()
527 ubifs_errc(c, "too small LEBs (%d bytes), min. is %d bytes", in init_constants_early()
528 c->leb_size, UBIFS_MIN_LEB_SZ); in init_constants_early()
532 if (c->leb_cnt < UBIFS_MIN_LEB_CNT) { in init_constants_early()
533 ubifs_errc(c, "too few LEBs (%d), min. is %d", in init_constants_early()
534 c->leb_cnt, UBIFS_MIN_LEB_CNT); in init_constants_early()
538 if (!is_power_of_2(c->min_io_size)) { in init_constants_early()
539 ubifs_errc(c, "bad min. I/O size %d", c->min_io_size); in init_constants_early()
547 if (c->max_write_size < c->min_io_size || in init_constants_early()
548 c->max_write_size % c->min_io_size || in init_constants_early()
549 !is_power_of_2(c->max_write_size)) { in init_constants_early()
550 ubifs_errc(c, "bad write buffer size %d for %d min. I/O unit", in init_constants_early()
551 c->max_write_size, c->min_io_size); in init_constants_early()
560 if (c->min_io_size < 8) { in init_constants_early()
561 c->min_io_size = 8; in init_constants_early()
562 c->min_io_shift = 3; in init_constants_early()
563 if (c->max_write_size < c->min_io_size) { in init_constants_early()
564 c->max_write_size = c->min_io_size; in init_constants_early()
565 c->max_write_shift = c->min_io_shift; in init_constants_early()
569 c->ref_node_alsz = ALIGN(UBIFS_REF_NODE_SZ, c->min_io_size); in init_constants_early()
570 c->mst_node_alsz = ALIGN(UBIFS_MST_NODE_SZ, c->min_io_size); in init_constants_early()
576 c->ranges[UBIFS_PAD_NODE].len = UBIFS_PAD_NODE_SZ; in init_constants_early()
577 c->ranges[UBIFS_SB_NODE].len = UBIFS_SB_NODE_SZ; in init_constants_early()
578 c->ranges[UBIFS_MST_NODE].len = UBIFS_MST_NODE_SZ; in init_constants_early()
579 c->ranges[UBIFS_REF_NODE].len = UBIFS_REF_NODE_SZ; in init_constants_early()
580 c->ranges[UBIFS_TRUN_NODE].len = UBIFS_TRUN_NODE_SZ; in init_constants_early()
581 c->ranges[UBIFS_CS_NODE].len = UBIFS_CS_NODE_SZ; in init_constants_early()
583 c->ranges[UBIFS_INO_NODE].min_len = UBIFS_INO_NODE_SZ; in init_constants_early()
584 c->ranges[UBIFS_INO_NODE].max_len = UBIFS_MAX_INO_NODE_SZ; in init_constants_early()
585 c->ranges[UBIFS_ORPH_NODE].min_len = in init_constants_early()
587 c->ranges[UBIFS_ORPH_NODE].max_len = c->leb_size; in init_constants_early()
588 c->ranges[UBIFS_DENT_NODE].min_len = UBIFS_DENT_NODE_SZ; in init_constants_early()
589 c->ranges[UBIFS_DENT_NODE].max_len = UBIFS_MAX_DENT_NODE_SZ; in init_constants_early()
590 c->ranges[UBIFS_XENT_NODE].min_len = UBIFS_XENT_NODE_SZ; in init_constants_early()
591 c->ranges[UBIFS_XENT_NODE].max_len = UBIFS_MAX_XENT_NODE_SZ; in init_constants_early()
592 c->ranges[UBIFS_DATA_NODE].min_len = UBIFS_DATA_NODE_SZ; in init_constants_early()
593 c->ranges[UBIFS_DATA_NODE].max_len = UBIFS_MAX_DATA_NODE_SZ; in init_constants_early()
598 c->ranges[UBIFS_IDX_NODE].min_len = UBIFS_IDX_NODE_SZ + UBIFS_BRANCH_SZ; in init_constants_early()
603 c->ranges[UBIFS_IDX_NODE].max_len = INT_MAX; in init_constants_early()
609 c->dead_wm = ALIGN(MIN_WRITE_SZ, c->min_io_size); in init_constants_early()
610 c->dark_wm = ALIGN(UBIFS_MAX_NODE_SZ, c->min_io_size); in init_constants_early()
617 c->leb_overhead = c->leb_size % UBIFS_MAX_DATA_NODE_SZ; in init_constants_early()
620 c->max_bu_buf_len = UBIFS_MAX_BULK_READ * UBIFS_MAX_DATA_NODE_SZ; in init_constants_early()
621 if (c->max_bu_buf_len > c->leb_size) in init_constants_early()
622 c->max_bu_buf_len = c->leb_size; in init_constants_early()
641 static int bud_wbuf_callback(struct ubifs_info *c, int lnum, int free, int pad) in bud_wbuf_callback() argument
643 return ubifs_update_one_lp(c, lnum, free, pad, 0, 0); in bud_wbuf_callback()
655 static int init_constants_sb(struct ubifs_info *c) in init_constants_sb() argument
660 c->main_bytes = (long long)c->main_lebs * c->leb_size; in init_constants_sb()
661 c->max_znode_sz = sizeof(struct ubifs_znode) + in init_constants_sb()
662 c->fanout * sizeof(struct ubifs_zbranch); in init_constants_sb()
664 tmp = ubifs_idx_node_sz(c, 1); in init_constants_sb()
665 c->ranges[UBIFS_IDX_NODE].min_len = tmp; in init_constants_sb()
666 c->min_idx_node_sz = ALIGN(tmp, 8); in init_constants_sb()
668 tmp = ubifs_idx_node_sz(c, c->fanout); in init_constants_sb()
669 c->ranges[UBIFS_IDX_NODE].max_len = tmp; in init_constants_sb()
670 c->max_idx_node_sz = ALIGN(tmp, 8); in init_constants_sb()
673 tmp = UBIFS_CS_NODE_SZ + UBIFS_REF_NODE_SZ * c->jhead_cnt; in init_constants_sb()
674 tmp = ALIGN(tmp, c->min_io_size); in init_constants_sb()
675 if (tmp > c->leb_size) { in init_constants_sb()
676 ubifs_err(c, "too small LEB size %d, at least %d needed", in init_constants_sb()
677 c->leb_size, tmp); in init_constants_sb()
685 tmp64 = c->max_bud_bytes + c->leb_size - 1; in init_constants_sb()
686 c->max_bud_cnt = div_u64(tmp64, c->leb_size); in init_constants_sb()
687 tmp = (c->ref_node_alsz * c->max_bud_cnt + c->leb_size - 1); in init_constants_sb()
688 tmp /= c->leb_size; in init_constants_sb()
690 if (c->log_lebs < tmp) { in init_constants_sb()
691 ubifs_err(c, "too small log %d LEBs, required min. %d LEBs", in init_constants_sb()
692 c->log_lebs, tmp); in init_constants_sb()
703 c->bi.page_budget = UBIFS_MAX_DATA_NODE_SZ * UBIFS_BLOCKS_PER_PAGE; in init_constants_sb()
704 c->bi.inode_budget = UBIFS_INO_NODE_SZ; in init_constants_sb()
705 c->bi.dent_budget = UBIFS_MAX_DENT_NODE_SZ; in init_constants_sb()
714 c->bg_bud_bytes = (c->max_bud_bytes * 13) >> 4; in init_constants_sb()
722 tmp64 = (long long)(c->jhead_cnt + 1) * c->leb_size + 1; in init_constants_sb()
723 if (c->bg_bud_bytes < tmp64) in init_constants_sb()
724 c->bg_bud_bytes = tmp64; in init_constants_sb()
725 if (c->max_bud_bytes < tmp64 + c->leb_size) in init_constants_sb()
726 c->max_bud_bytes = tmp64 + c->leb_size; in init_constants_sb()
728 err = ubifs_calc_lpt_geom(c); in init_constants_sb()
733 c->idx_leb_size = c->leb_size - c->max_idx_node_sz; in init_constants_sb()
745 static void init_constants_master(struct ubifs_info *c) in init_constants_master() argument
749 c->bi.min_idx_lebs = ubifs_calc_min_idx_lebs(c); in init_constants_master()
750 c->report_rp_size = ubifs_reported_space(c, c->rp_size); in init_constants_master()
761 tmp64 = c->main_lebs - 1 - 1 - MIN_INDEX_LEBS - c->jhead_cnt + 1; in init_constants_master()
762 tmp64 *= (long long)c->leb_size - c->leb_overhead; in init_constants_master()
763 tmp64 = ubifs_reported_space(c, tmp64); in init_constants_master()
764 c->block_cnt = tmp64 >> UBIFS_BLOCK_SHIFT; in init_constants_master()
778 static int take_gc_lnum(struct ubifs_info *c) in take_gc_lnum() argument
782 if (c->gc_lnum == -1) { in take_gc_lnum()
783 ubifs_err(c, "no LEB for GC"); in take_gc_lnum()
788 err = ubifs_change_one_lp(c, c->gc_lnum, c->leb_size, 0, in take_gc_lnum()
800 static int alloc_wbufs(struct ubifs_info *c) in alloc_wbufs() argument
804 c->jheads = kcalloc(c->jhead_cnt, sizeof(struct ubifs_jhead), in alloc_wbufs()
806 if (!c->jheads) in alloc_wbufs()
810 for (i = 0; i < c->jhead_cnt; i++) { in alloc_wbufs()
811 INIT_LIST_HEAD(&c->jheads[i].buds_list); in alloc_wbufs()
812 err = ubifs_wbuf_init(c, &c->jheads[i].wbuf); in alloc_wbufs()
816 c->jheads[i].wbuf.sync_callback = &bud_wbuf_callback; in alloc_wbufs()
817 c->jheads[i].wbuf.jhead = i; in alloc_wbufs()
818 c->jheads[i].grouped = 1; in alloc_wbufs()
825 c->jheads[GCHD].wbuf.no_timer = 1; in alloc_wbufs()
826 c->jheads[GCHD].grouped = 0; in alloc_wbufs()
835 static void free_wbufs(struct ubifs_info *c) in free_wbufs() argument
839 if (c->jheads) { in free_wbufs()
840 for (i = 0; i < c->jhead_cnt; i++) { in free_wbufs()
841 kfree(c->jheads[i].wbuf.buf); in free_wbufs()
842 kfree(c->jheads[i].wbuf.inodes); in free_wbufs()
844 kfree(c->jheads); in free_wbufs()
845 c->jheads = NULL; in free_wbufs()
853 static void free_orphans(struct ubifs_info *c) in free_orphans() argument
857 while (c->orph_dnext) { in free_orphans()
858 orph = c->orph_dnext; in free_orphans()
859 c->orph_dnext = orph->dnext; in free_orphans()
864 while (!list_empty(&c->orph_list)) { in free_orphans()
865 orph = list_entry(c->orph_list.next, struct ubifs_orphan, list); in free_orphans()
868 ubifs_err(c, "orphan list not empty at unmount"); in free_orphans()
871 vfree(c->orph_buf); in free_orphans()
872 c->orph_buf = NULL; in free_orphans()
879 static void free_buds(struct ubifs_info *c) in free_buds() argument
883 rbtree_postorder_for_each_entry_safe(bud, n, &c->buds, rb) in free_buds()
896 static int check_volume_empty(struct ubifs_info *c) in check_volume_empty() argument
900 c->empty = 1; in check_volume_empty()
901 for (lnum = 0; lnum < c->leb_cnt; lnum++) { in check_volume_empty()
902 err = ubifs_is_mapped(c, lnum); in check_volume_empty()
906 c->empty = 0; in check_volume_empty()
987 static int ubifs_parse_options(struct ubifs_info *c, char *options, in ubifs_parse_options() argument
1010 c->mount_opts.unmount_mode = 2; in ubifs_parse_options()
1013 c->mount_opts.unmount_mode = 1; in ubifs_parse_options()
1016 c->mount_opts.bulk_read = 2; in ubifs_parse_options()
1017 c->bulk_read = 1; in ubifs_parse_options()
1020 c->mount_opts.bulk_read = 1; in ubifs_parse_options()
1021 c->bulk_read = 0; in ubifs_parse_options()
1024 c->mount_opts.chk_data_crc = 2; in ubifs_parse_options()
1025 c->no_chk_data_crc = 0; in ubifs_parse_options()
1028 c->mount_opts.chk_data_crc = 1; in ubifs_parse_options()
1029 c->no_chk_data_crc = 1; in ubifs_parse_options()
1038 c->mount_opts.compr_type = UBIFS_COMPR_NONE; in ubifs_parse_options()
1040 c->mount_opts.compr_type = UBIFS_COMPR_LZO; in ubifs_parse_options()
1042 c->mount_opts.compr_type = UBIFS_COMPR_ZLIB; in ubifs_parse_options()
1044 ubifs_err(c, "unknown compressor \"%s\"", name); //FIXME: is c ready? in ubifs_parse_options()
1049 c->mount_opts.override_compr = 1; in ubifs_parse_options()
1050 c->default_compr = c->mount_opts.compr_type; in ubifs_parse_options()
1060 c->assert_action = ASSACT_REPORT; in ubifs_parse_options()
1062 c->assert_action = ASSACT_RO; in ubifs_parse_options()
1064 c->assert_action = ASSACT_PANIC; in ubifs_parse_options()
1066 ubifs_err(c, "unknown assert action \"%s\"", act); in ubifs_parse_options()
1078 struct super_block *sb = c->vfs_sb; in ubifs_parse_options()
1082 ubifs_err(c, "unrecognized mount option \"%s\" or missing value", in ubifs_parse_options()
1102 static void destroy_journal(struct ubifs_info *c) in destroy_journal() argument
1104 while (!list_empty(&c->unclean_leb_list)) { in destroy_journal()
1107 ucleb = list_entry(c->unclean_leb_list.next, in destroy_journal()
1112 while (!list_empty(&c->old_buds)) { in destroy_journal()
1115 bud = list_entry(c->old_buds.next, struct ubifs_bud, list); in destroy_journal()
1119 ubifs_destroy_idx_gc(c); in destroy_journal()
1120 ubifs_destroy_size_tree(c); in destroy_journal()
1121 ubifs_tnc_close(c); in destroy_journal()
1122 free_buds(c); in destroy_journal()
1129 static void bu_init(struct ubifs_info *c) in bu_init() argument
1131 ubifs_assert(c, c->bulk_read == 1); in bu_init()
1133 if (c->bu.buf) in bu_init()
1137 c->bu.buf = kmalloc(c->max_bu_buf_len, GFP_KERNEL | __GFP_NOWARN); in bu_init()
1138 if (!c->bu.buf) { in bu_init()
1139 if (c->max_bu_buf_len > UBIFS_KMALLOC_OK) { in bu_init()
1140 c->max_bu_buf_len = UBIFS_KMALLOC_OK; in bu_init()
1145 ubifs_warn(c, "cannot allocate %d bytes of memory for bulk-read, disabling it", in bu_init()
1146 c->max_bu_buf_len); in bu_init()
1147 c->mount_opts.bulk_read = 1; in bu_init()
1148 c->bulk_read = 0; in bu_init()
1160 static int check_free_space(struct ubifs_info *c) in check_free_space() argument
1162 ubifs_assert(c, c->dark_wm > 0); in check_free_space()
1163 if (c->lst.total_free + c->lst.total_dirty < c->dark_wm) { in check_free_space()
1164 ubifs_err(c, "insufficient free space to mount in R/W mode"); in check_free_space()
1165 ubifs_dump_budg(c, &c->bi); in check_free_space()
1166 ubifs_dump_lprops(c); in check_free_space()
1179 static int mount_ubifs(struct ubifs_info *c) in mount_ubifs() argument
1185 c->ro_mount = !!sb_rdonly(c->vfs_sb); in mount_ubifs()
1187 c->probing = !!(c->vfs_sb->s_flags & SB_SILENT); in mount_ubifs()
1189 err = init_constants_early(c); in mount_ubifs()
1193 err = ubifs_debugging_init(c); in mount_ubifs()
1197 err = check_volume_empty(c); in mount_ubifs()
1201 if (c->empty && (c->ro_mount || c->ro_media)) { in mount_ubifs()
1206 ubifs_err(c, "can't format empty UBI volume: read-only %s", in mount_ubifs()
1207 c->ro_media ? "UBI volume" : "mount"); in mount_ubifs()
1212 if (c->ro_media && !c->ro_mount) { in mount_ubifs()
1213 ubifs_err(c, "cannot mount read-write - read-only media"); in mount_ubifs()
1224 c->bottom_up_buf = kmalloc_array(BOTTOM_UP_HEIGHT, sizeof(int), in mount_ubifs()
1226 if (!c->bottom_up_buf) in mount_ubifs()
1229 c->sbuf = vmalloc(c->leb_size); in mount_ubifs()
1230 if (!c->sbuf) in mount_ubifs()
1233 if (!c->ro_mount) { in mount_ubifs()
1234 c->ileb_buf = vmalloc(c->leb_size); in mount_ubifs()
1235 if (!c->ileb_buf) in mount_ubifs()
1239 if (c->bulk_read == 1) in mount_ubifs()
1240 bu_init(c); in mount_ubifs()
1242 if (!c->ro_mount) { in mount_ubifs()
1243 c->write_reserve_buf = kmalloc(COMPRESSED_DATA_NODE_BUF_SZ + \ in mount_ubifs()
1246 if (!c->write_reserve_buf) in mount_ubifs()
1250 c->mounting = 1; in mount_ubifs()
1252 err = ubifs_read_superblock(c); in mount_ubifs()
1256 c->probing = 0; in mount_ubifs()
1262 if (!ubifs_compr_present(c, c->default_compr)) { in mount_ubifs()
1263 ubifs_err(c, "'compressor \"%s\" is not compiled in", in mount_ubifs()
1264 ubifs_compr_name(c, c->default_compr)); in mount_ubifs()
1269 err = init_constants_sb(c); in mount_ubifs()
1273 sz = ALIGN(c->max_idx_node_sz, c->min_io_size); in mount_ubifs()
1274 sz = ALIGN(sz + c->max_idx_node_sz, c->min_io_size); in mount_ubifs()
1275 c->cbuf = kmalloc(sz, GFP_NOFS); in mount_ubifs()
1276 if (!c->cbuf) { in mount_ubifs()
1281 err = alloc_wbufs(c); in mount_ubifs()
1285 sprintf(c->bgt_name, BGT_NAME_PATTERN, c->vi.ubi_num, c->vi.vol_id); in mount_ubifs()
1286 if (!c->ro_mount) { in mount_ubifs()
1288 c->bgt = kthread_create(ubifs_bg_thread, c, "%s", c->bgt_name); in mount_ubifs()
1289 if (IS_ERR(c->bgt)) { in mount_ubifs()
1290 err = PTR_ERR(c->bgt); in mount_ubifs()
1291 c->bgt = NULL; in mount_ubifs()
1292 ubifs_err(c, "cannot spawn \"%s\", error %d", in mount_ubifs()
1293 c->bgt_name, err); in mount_ubifs()
1296 wake_up_process(c->bgt); in mount_ubifs()
1299 err = ubifs_read_master(c); in mount_ubifs()
1303 init_constants_master(c); in mount_ubifs()
1305 if ((c->mst_node->flags & cpu_to_le32(UBIFS_MST_DIRTY)) != 0) { in mount_ubifs()
1306 ubifs_msg(c, "recovery needed"); in mount_ubifs()
1307 c->need_recovery = 1; in mount_ubifs()
1310 if (c->need_recovery && !c->ro_mount) { in mount_ubifs()
1311 err = ubifs_recover_inl_heads(c, c->sbuf); in mount_ubifs()
1316 err = ubifs_lpt_init(c, 1, !c->ro_mount); in mount_ubifs()
1320 if (!c->ro_mount && c->space_fixup) { in mount_ubifs()
1321 err = ubifs_fixup_free_space(c); in mount_ubifs()
1326 if (!c->ro_mount && !c->need_recovery) { in mount_ubifs()
1331 c->mst_node->flags |= cpu_to_le32(UBIFS_MST_DIRTY); in mount_ubifs()
1332 err = ubifs_write_master(c); in mount_ubifs()
1337 err = dbg_check_idx_size(c, c->bi.old_idx_sz); in mount_ubifs()
1341 err = ubifs_replay_journal(c); in mount_ubifs()
1346 c->bi.min_idx_lebs = ubifs_calc_min_idx_lebs(c); in mount_ubifs()
1348 err = ubifs_mount_orphans(c, c->need_recovery, c->ro_mount); in mount_ubifs()
1352 if (!c->ro_mount) { in mount_ubifs()
1355 err = check_free_space(c); in mount_ubifs()
1360 lnum = c->lhead_lnum + 1; in mount_ubifs()
1361 if (lnum >= UBIFS_LOG_LNUM + c->log_lebs) in mount_ubifs()
1363 if (lnum == c->ltail_lnum) { in mount_ubifs()
1364 err = ubifs_consolidate_log(c); in mount_ubifs()
1369 if (c->need_recovery) { in mount_ubifs()
1370 err = ubifs_recover_size(c); in mount_ubifs()
1373 err = ubifs_rcvry_gc_commit(c); in mount_ubifs()
1377 err = take_gc_lnum(c); in mount_ubifs()
1385 err = ubifs_leb_unmap(c, c->gc_lnum); in mount_ubifs()
1390 err = dbg_check_lprops(c); in mount_ubifs()
1393 } else if (c->need_recovery) { in mount_ubifs()
1394 err = ubifs_recover_size(c); in mount_ubifs()
1404 err = take_gc_lnum(c); in mount_ubifs()
1410 list_add_tail(&c->infos_list, &ubifs_infos); in mount_ubifs()
1413 if (c->need_recovery) { in mount_ubifs()
1414 if (c->ro_mount) in mount_ubifs()
1415 ubifs_msg(c, "recovery deferred"); in mount_ubifs()
1417 c->need_recovery = 0; in mount_ubifs()
1418 ubifs_msg(c, "recovery completed"); in mount_ubifs()
1424 ubifs_assert(c, c->lst.taken_empty_lebs > 0); in mount_ubifs()
1427 ubifs_assert(c, c->lst.taken_empty_lebs > 0); in mount_ubifs()
1429 err = dbg_check_filesystem(c); in mount_ubifs()
1433 err = dbg_debugfs_init_fs(c); in mount_ubifs()
1437 c->mounting = 0; in mount_ubifs()
1439 ubifs_msg(c, "UBIFS: mounted UBI device %d, volume %d, name \"%s\"%s", in mount_ubifs()
1440 c->vi.ubi_num, c->vi.vol_id, c->vi.name, in mount_ubifs()
1441 c->ro_mount ? ", R/O mode" : ""); in mount_ubifs()
1442 x = (long long)c->main_lebs * c->leb_size; in mount_ubifs()
1443 y = (long long)c->log_lebs * c->leb_size + c->max_bud_bytes; in mount_ubifs()
1444 ubifs_msg(c, "LEB size: %d bytes (%d KiB), min./max. I/O unit sizes: %d bytes/%d bytes", in mount_ubifs()
1445 c->leb_size, c->leb_size >> 10, c->min_io_size, in mount_ubifs()
1446 c->max_write_size); in mount_ubifs()
1447 …ubifs_msg(c, "FS size: %lld bytes (%lld MiB, %d LEBs), journal size %lld bytes (%lld MiB, %d LEBs)… in mount_ubifs()
1448 x, x >> 20, c->main_lebs, in mount_ubifs()
1449 y, y >> 20, c->log_lebs + c->max_bud_cnt); in mount_ubifs()
1450 ubifs_msg(c, "reserved for root: %llu bytes (%llu KiB)", in mount_ubifs()
1451 c->report_rp_size, c->report_rp_size >> 10); in mount_ubifs()
1452 ubifs_msg(c, "media format: w%d/r%d (latest is w%d/r%d), UUID %pUB%s", in mount_ubifs()
1453 c->fmt_version, c->ro_compat_version, in mount_ubifs()
1454 UBIFS_FORMAT_VERSION, UBIFS_RO_COMPAT_VERSION, c->uuid, in mount_ubifs()
1455 c->big_lpt ? ", big LPT model" : ", small LPT model"); in mount_ubifs()
1457 dbg_gen("default compressor: %s", ubifs_compr_name(c, c->default_compr)); in mount_ubifs()
1459 c->jhead_cnt - NONDATA_JHEADS_CNT); in mount_ubifs()
1461 c->log_lebs, UBIFS_LOG_LNUM, c->log_last); in mount_ubifs()
1463 c->lpt_lebs, c->lpt_first, c->lpt_last); in mount_ubifs()
1465 c->orph_lebs, c->orph_first, c->orph_last); in mount_ubifs()
1467 c->main_lebs, c->main_first, c->leb_cnt - 1); in mount_ubifs()
1468 dbg_gen("index LEBs: %d", c->lst.idx_lebs); in mount_ubifs()
1470 c->bi.old_idx_sz, c->bi.old_idx_sz >> 10, in mount_ubifs()
1471 c->bi.old_idx_sz >> 20); in mount_ubifs()
1472 dbg_gen("key hash type: %d", c->key_hash_type); in mount_ubifs()
1473 dbg_gen("tree fanout: %d", c->fanout); in mount_ubifs()
1474 dbg_gen("reserved GC LEB: %d", c->gc_lnum); in mount_ubifs()
1475 dbg_gen("max. znode size %d", c->max_znode_sz); in mount_ubifs()
1476 dbg_gen("max. index node size %d", c->max_idx_node_sz); in mount_ubifs()
1485 UBIFS_MAX_DENT_NODE_SZ, ubifs_idx_node_sz(c, c->fanout)); in mount_ubifs()
1486 dbg_gen("dead watermark: %d", c->dead_wm); in mount_ubifs()
1487 dbg_gen("dark watermark: %d", c->dark_wm); in mount_ubifs()
1488 dbg_gen("LEB overhead: %d", c->leb_overhead); in mount_ubifs()
1489 x = (long long)c->main_lebs * c->dark_wm; in mount_ubifs()
1493 c->max_bud_bytes, c->max_bud_bytes >> 10, in mount_ubifs()
1494 c->max_bud_bytes >> 20); in mount_ubifs()
1496 c->bg_bud_bytes, c->bg_bud_bytes >> 10, in mount_ubifs()
1497 c->bg_bud_bytes >> 20); in mount_ubifs()
1499 c->bud_bytes, c->bud_bytes >> 10, c->bud_bytes >> 20); in mount_ubifs()
1500 dbg_gen("max. seq. number: %llu", c->max_sqnum); in mount_ubifs()
1501 dbg_gen("commit number: %llu", c->cmt_no); in mount_ubifs()
1507 list_del(&c->infos_list); in mount_ubifs()
1510 free_orphans(c); in mount_ubifs()
1512 destroy_journal(c); in mount_ubifs()
1514 ubifs_lpt_free(c, 0); in mount_ubifs()
1516 kfree(c->mst_node); in mount_ubifs()
1517 kfree(c->rcvrd_mst_node); in mount_ubifs()
1518 if (c->bgt) in mount_ubifs()
1519 kthread_stop(c->bgt); in mount_ubifs()
1521 free_wbufs(c); in mount_ubifs()
1523 kfree(c->cbuf); in mount_ubifs()
1525 kfree(c->write_reserve_buf); in mount_ubifs()
1526 kfree(c->bu.buf); in mount_ubifs()
1527 vfree(c->ileb_buf); in mount_ubifs()
1528 vfree(c->sbuf); in mount_ubifs()
1529 kfree(c->bottom_up_buf); in mount_ubifs()
1530 ubifs_debugging_exit(c); in mount_ubifs()
1543 static void ubifs_umount(struct ubifs_info *c) in ubifs_umount() argument
1545 dbg_gen("un-mounting UBI device %d, volume %d", c->vi.ubi_num, in ubifs_umount()
1546 c->vi.vol_id); in ubifs_umount()
1548 dbg_debugfs_exit_fs(c); in ubifs_umount()
1550 list_del(&c->infos_list); in ubifs_umount()
1553 if (c->bgt) in ubifs_umount()
1554 kthread_stop(c->bgt); in ubifs_umount()
1556 destroy_journal(c); in ubifs_umount()
1557 free_wbufs(c); in ubifs_umount()
1558 free_orphans(c); in ubifs_umount()
1559 ubifs_lpt_free(c, 0); in ubifs_umount()
1561 kfree(c->cbuf); in ubifs_umount()
1562 kfree(c->rcvrd_mst_node); in ubifs_umount()
1563 kfree(c->mst_node); in ubifs_umount()
1564 kfree(c->write_reserve_buf); in ubifs_umount()
1565 kfree(c->bu.buf); in ubifs_umount()
1566 vfree(c->ileb_buf); in ubifs_umount()
1567 vfree(c->sbuf); in ubifs_umount()
1568 kfree(c->bottom_up_buf); in ubifs_umount()
1569 ubifs_debugging_exit(c); in ubifs_umount()
1580 static int ubifs_remount_rw(struct ubifs_info *c) in ubifs_remount_rw() argument
1584 if (c->rw_incompat) { in ubifs_remount_rw()
1585 ubifs_err(c, "the file-system is not R/W-compatible"); in ubifs_remount_rw()
1586 …ubifs_msg(c, "on-flash format version is w%d/r%d, but software only supports up to version w%d/r%d… in ubifs_remount_rw()
1587 c->fmt_version, c->ro_compat_version, in ubifs_remount_rw()
1592 mutex_lock(&c->umount_mutex); in ubifs_remount_rw()
1593 dbg_save_space_info(c); in ubifs_remount_rw()
1594 c->remounting_rw = 1; in ubifs_remount_rw()
1595 c->ro_mount = 0; in ubifs_remount_rw()
1597 if (c->space_fixup) { in ubifs_remount_rw()
1598 err = ubifs_fixup_free_space(c); in ubifs_remount_rw()
1603 err = check_free_space(c); in ubifs_remount_rw()
1607 if (c->old_leb_cnt != c->leb_cnt) { in ubifs_remount_rw()
1610 sup = ubifs_read_sb_node(c); in ubifs_remount_rw()
1615 sup->leb_cnt = cpu_to_le32(c->leb_cnt); in ubifs_remount_rw()
1616 err = ubifs_write_sb_node(c, sup); in ubifs_remount_rw()
1622 if (c->need_recovery) { in ubifs_remount_rw()
1623 ubifs_msg(c, "completing deferred recovery"); in ubifs_remount_rw()
1624 err = ubifs_write_rcvrd_mst_node(c); in ubifs_remount_rw()
1627 err = ubifs_recover_size(c); in ubifs_remount_rw()
1630 err = ubifs_clean_lebs(c, c->sbuf); in ubifs_remount_rw()
1633 err = ubifs_recover_inl_heads(c, c->sbuf); in ubifs_remount_rw()
1638 ubifs_assert(c, c->tot_orphans == 0); in ubifs_remount_rw()
1639 err = ubifs_clear_orphans(c); in ubifs_remount_rw()
1644 if (!(c->mst_node->flags & cpu_to_le32(UBIFS_MST_DIRTY))) { in ubifs_remount_rw()
1645 c->mst_node->flags |= cpu_to_le32(UBIFS_MST_DIRTY); in ubifs_remount_rw()
1646 err = ubifs_write_master(c); in ubifs_remount_rw()
1651 c->ileb_buf = vmalloc(c->leb_size); in ubifs_remount_rw()
1652 if (!c->ileb_buf) { in ubifs_remount_rw()
1657 c->write_reserve_buf = kmalloc(COMPRESSED_DATA_NODE_BUF_SZ + \ in ubifs_remount_rw()
1659 if (!c->write_reserve_buf) { in ubifs_remount_rw()
1664 err = ubifs_lpt_init(c, 0, 1); in ubifs_remount_rw()
1669 c->bgt = kthread_create(ubifs_bg_thread, c, "%s", c->bgt_name); in ubifs_remount_rw()
1670 if (IS_ERR(c->bgt)) { in ubifs_remount_rw()
1671 err = PTR_ERR(c->bgt); in ubifs_remount_rw()
1672 c->bgt = NULL; in ubifs_remount_rw()
1673 ubifs_err(c, "cannot spawn \"%s\", error %d", in ubifs_remount_rw()
1674 c->bgt_name, err); in ubifs_remount_rw()
1677 wake_up_process(c->bgt); in ubifs_remount_rw()
1679 c->orph_buf = vmalloc(c->leb_size); in ubifs_remount_rw()
1680 if (!c->orph_buf) { in ubifs_remount_rw()
1686 lnum = c->lhead_lnum + 1; in ubifs_remount_rw()
1687 if (lnum >= UBIFS_LOG_LNUM + c->log_lebs) in ubifs_remount_rw()
1689 if (lnum == c->ltail_lnum) { in ubifs_remount_rw()
1690 err = ubifs_consolidate_log(c); in ubifs_remount_rw()
1695 if (c->need_recovery) in ubifs_remount_rw()
1696 err = ubifs_rcvry_gc_commit(c); in ubifs_remount_rw()
1698 err = ubifs_leb_unmap(c, c->gc_lnum); in ubifs_remount_rw()
1703 c->remounting_rw = 0; in ubifs_remount_rw()
1705 if (c->need_recovery) { in ubifs_remount_rw()
1706 c->need_recovery = 0; in ubifs_remount_rw()
1707 ubifs_msg(c, "deferred recovery completed"); in ubifs_remount_rw()
1719 err = dbg_check_space_info(c); in ubifs_remount_rw()
1722 mutex_unlock(&c->umount_mutex); in ubifs_remount_rw()
1726 c->ro_mount = 1; in ubifs_remount_rw()
1727 vfree(c->orph_buf); in ubifs_remount_rw()
1728 c->orph_buf = NULL; in ubifs_remount_rw()
1729 if (c->bgt) { in ubifs_remount_rw()
1730 kthread_stop(c->bgt); in ubifs_remount_rw()
1731 c->bgt = NULL; in ubifs_remount_rw()
1733 free_wbufs(c); in ubifs_remount_rw()
1734 kfree(c->write_reserve_buf); in ubifs_remount_rw()
1735 c->write_reserve_buf = NULL; in ubifs_remount_rw()
1736 vfree(c->ileb_buf); in ubifs_remount_rw()
1737 c->ileb_buf = NULL; in ubifs_remount_rw()
1738 ubifs_lpt_free(c, 1); in ubifs_remount_rw()
1739 c->remounting_rw = 0; in ubifs_remount_rw()
1740 mutex_unlock(&c->umount_mutex); in ubifs_remount_rw()
1751 static void ubifs_remount_ro(struct ubifs_info *c) in ubifs_remount_ro() argument
1755 ubifs_assert(c, !c->need_recovery); in ubifs_remount_ro()
1756 ubifs_assert(c, !c->ro_mount); in ubifs_remount_ro()
1758 mutex_lock(&c->umount_mutex); in ubifs_remount_ro()
1759 if (c->bgt) { in ubifs_remount_ro()
1760 kthread_stop(c->bgt); in ubifs_remount_ro()
1761 c->bgt = NULL; in ubifs_remount_ro()
1764 dbg_save_space_info(c); in ubifs_remount_ro()
1766 for (i = 0; i < c->jhead_cnt; i++) { in ubifs_remount_ro()
1767 err = ubifs_wbuf_sync(&c->jheads[i].wbuf); in ubifs_remount_ro()
1769 ubifs_ro_mode(c, err); in ubifs_remount_ro()
1772 c->mst_node->flags &= ~cpu_to_le32(UBIFS_MST_DIRTY); in ubifs_remount_ro()
1773 c->mst_node->flags |= cpu_to_le32(UBIFS_MST_NO_ORPHS); in ubifs_remount_ro()
1774 c->mst_node->gc_lnum = cpu_to_le32(c->gc_lnum); in ubifs_remount_ro()
1775 err = ubifs_write_master(c); in ubifs_remount_ro()
1777 ubifs_ro_mode(c, err); in ubifs_remount_ro()
1779 vfree(c->orph_buf); in ubifs_remount_ro()
1780 c->orph_buf = NULL; in ubifs_remount_ro()
1781 kfree(c->write_reserve_buf); in ubifs_remount_ro()
1782 c->write_reserve_buf = NULL; in ubifs_remount_ro()
1783 vfree(c->ileb_buf); in ubifs_remount_ro()
1784 c->ileb_buf = NULL; in ubifs_remount_ro()
1785 ubifs_lpt_free(c, 1); in ubifs_remount_ro()
1786 c->ro_mount = 1; in ubifs_remount_ro()
1787 err = dbg_check_space_info(c); in ubifs_remount_ro()
1789 ubifs_ro_mode(c, err); in ubifs_remount_ro()
1790 mutex_unlock(&c->umount_mutex); in ubifs_remount_ro()
1796 struct ubifs_info *c = sb->s_fs_info; in ubifs_put_super() local
1798 ubifs_msg(c, "un-mount UBI device %d", c->vi.ubi_num); in ubifs_put_super()
1805 if (!c->ro_error) { in ubifs_put_super()
1806 ubifs_assert(c, c->bi.idx_growth == 0); in ubifs_put_super()
1807 ubifs_assert(c, c->bi.dd_growth == 0); in ubifs_put_super()
1808 ubifs_assert(c, c->bi.data_growth == 0); in ubifs_put_super()
1817 mutex_lock(&c->umount_mutex); in ubifs_put_super()
1818 if (!c->ro_mount) { in ubifs_put_super()
1823 if (c->bgt) { in ubifs_put_super()
1824 kthread_stop(c->bgt); in ubifs_put_super()
1825 c->bgt = NULL; in ubifs_put_super()
1832 if (!c->ro_error) { in ubifs_put_super()
1836 for (i = 0; i < c->jhead_cnt; i++) { in ubifs_put_super()
1837 err = ubifs_wbuf_sync(&c->jheads[i].wbuf); in ubifs_put_super()
1839 ubifs_ro_mode(c, err); in ubifs_put_super()
1847 c->mst_node->flags &= ~cpu_to_le32(UBIFS_MST_DIRTY); in ubifs_put_super()
1848 c->mst_node->flags |= cpu_to_le32(UBIFS_MST_NO_ORPHS); in ubifs_put_super()
1849 c->mst_node->gc_lnum = cpu_to_le32(c->gc_lnum); in ubifs_put_super()
1850 err = ubifs_write_master(c); in ubifs_put_super()
1857 ubifs_err(c, "failed to write master node, error %d", in ubifs_put_super()
1860 for (i = 0; i < c->jhead_cnt; i++) in ubifs_put_super()
1862 hrtimer_cancel(&c->jheads[i].wbuf.timer); in ubifs_put_super()
1866 ubifs_umount(c); in ubifs_put_super()
1867 ubi_close_volume(c->ubi); in ubifs_put_super()
1868 mutex_unlock(&c->umount_mutex); in ubifs_put_super()
1874 struct ubifs_info *c = sb->s_fs_info; in ubifs_remount_fs() local
1879 err = ubifs_parse_options(c, data, 1); in ubifs_remount_fs()
1881 ubifs_err(c, "invalid or unknown remount parameter"); in ubifs_remount_fs()
1885 if (c->ro_mount && !(*flags & SB_RDONLY)) { in ubifs_remount_fs()
1886 if (c->ro_error) { in ubifs_remount_fs()
1887 ubifs_msg(c, "cannot re-mount R/W due to prior errors"); in ubifs_remount_fs()
1890 if (c->ro_media) { in ubifs_remount_fs()
1891 ubifs_msg(c, "cannot re-mount R/W - UBI volume is R/O"); in ubifs_remount_fs()
1894 err = ubifs_remount_rw(c); in ubifs_remount_fs()
1897 } else if (!c->ro_mount && (*flags & SB_RDONLY)) { in ubifs_remount_fs()
1898 if (c->ro_error) { in ubifs_remount_fs()
1899 ubifs_msg(c, "cannot re-mount R/O due to prior errors"); in ubifs_remount_fs()
1902 ubifs_remount_ro(c); in ubifs_remount_fs()
1905 if (c->bulk_read == 1) in ubifs_remount_fs()
1906 bu_init(c); in ubifs_remount_fs()
1909 mutex_lock(&c->bu_mutex); in ubifs_remount_fs()
1910 kfree(c->bu.buf); in ubifs_remount_fs()
1911 c->bu.buf = NULL; in ubifs_remount_fs()
1912 mutex_unlock(&c->bu_mutex); in ubifs_remount_fs()
1915 if (!c->need_recovery) in ubifs_remount_fs()
1916 ubifs_assert(c, c->lst.taken_empty_lebs > 0); in ubifs_remount_fs()
2001 struct ubifs_info *c; in alloc_ubifs_info() local
2003 c = kzalloc(sizeof(struct ubifs_info), GFP_KERNEL); in alloc_ubifs_info()
2004 if (c) { in alloc_ubifs_info()
2005 spin_lock_init(&c->cnt_lock); in alloc_ubifs_info()
2006 spin_lock_init(&c->cs_lock); in alloc_ubifs_info()
2007 spin_lock_init(&c->buds_lock); in alloc_ubifs_info()
2008 spin_lock_init(&c->space_lock); in alloc_ubifs_info()
2009 spin_lock_init(&c->orphan_lock); in alloc_ubifs_info()
2010 init_rwsem(&c->commit_sem); in alloc_ubifs_info()
2011 mutex_init(&c->lp_mutex); in alloc_ubifs_info()
2012 mutex_init(&c->tnc_mutex); in alloc_ubifs_info()
2013 mutex_init(&c->log_mutex); in alloc_ubifs_info()
2014 mutex_init(&c->umount_mutex); in alloc_ubifs_info()
2015 mutex_init(&c->bu_mutex); in alloc_ubifs_info()
2016 mutex_init(&c->write_reserve_mutex); in alloc_ubifs_info()
2017 init_waitqueue_head(&c->cmt_wq); in alloc_ubifs_info()
2018 c->buds = RB_ROOT; in alloc_ubifs_info()
2019 c->old_idx = RB_ROOT; in alloc_ubifs_info()
2020 c->size_tree = RB_ROOT; in alloc_ubifs_info()
2021 c->orph_tree = RB_ROOT; in alloc_ubifs_info()
2022 INIT_LIST_HEAD(&c->infos_list); in alloc_ubifs_info()
2023 INIT_LIST_HEAD(&c->idx_gc); in alloc_ubifs_info()
2024 INIT_LIST_HEAD(&c->replay_list); in alloc_ubifs_info()
2025 INIT_LIST_HEAD(&c->replay_buds); in alloc_ubifs_info()
2026 INIT_LIST_HEAD(&c->uncat_list); in alloc_ubifs_info()
2027 INIT_LIST_HEAD(&c->empty_list); in alloc_ubifs_info()
2028 INIT_LIST_HEAD(&c->freeable_list); in alloc_ubifs_info()
2029 INIT_LIST_HEAD(&c->frdi_idx_list); in alloc_ubifs_info()
2030 INIT_LIST_HEAD(&c->unclean_leb_list); in alloc_ubifs_info()
2031 INIT_LIST_HEAD(&c->old_buds); in alloc_ubifs_info()
2032 INIT_LIST_HEAD(&c->orph_list); in alloc_ubifs_info()
2033 INIT_LIST_HEAD(&c->orph_new); in alloc_ubifs_info()
2034 c->no_chk_data_crc = 1; in alloc_ubifs_info()
2035 c->assert_action = ASSACT_RO; in alloc_ubifs_info()
2037 c->highest_inum = UBIFS_FIRST_INO; in alloc_ubifs_info()
2038 c->lhead_lnum = c->ltail_lnum = UBIFS_LOG_LNUM; in alloc_ubifs_info()
2040 ubi_get_volume_info(ubi, &c->vi); in alloc_ubifs_info()
2041 ubi_get_device_info(c->vi.ubi_num, &c->di); in alloc_ubifs_info()
2043 return c; in alloc_ubifs_info()
2048 struct ubifs_info *c = sb->s_fs_info; in ubifs_fill_super() local
2052 c->vfs_sb = sb; in ubifs_fill_super()
2054 c->ubi = ubi_open_volume(c->vi.ubi_num, c->vi.vol_id, UBI_READWRITE); in ubifs_fill_super()
2055 if (IS_ERR(c->ubi)) { in ubifs_fill_super()
2056 err = PTR_ERR(c->ubi); in ubifs_fill_super()
2060 err = ubifs_parse_options(c, data, 0); in ubifs_fill_super()
2074 err = super_setup_bdi_name(sb, "ubifs_%d_%d", c->vi.ubi_num, in ubifs_fill_super()
2075 c->vi.vol_id); in ubifs_fill_super()
2079 sb->s_fs_info = c; in ubifs_fill_super()
2083 sb->s_maxbytes = c->max_inode_sz = key_max_inode_size(c); in ubifs_fill_super()
2084 if (c->max_inode_sz > MAX_LFS_FILESIZE) in ubifs_fill_super()
2085 sb->s_maxbytes = c->max_inode_sz = MAX_LFS_FILESIZE; in ubifs_fill_super()
2094 mutex_lock(&c->umount_mutex); in ubifs_fill_super()
2095 err = mount_ubifs(c); in ubifs_fill_super()
2097 ubifs_assert(c, err < 0); in ubifs_fill_super()
2114 mutex_unlock(&c->umount_mutex); in ubifs_fill_super()
2118 ubifs_umount(c); in ubifs_fill_super()
2120 mutex_unlock(&c->umount_mutex); in ubifs_fill_super()
2122 ubi_close_volume(c->ubi); in ubifs_fill_super()
2130 struct ubifs_info *c = sb->s_fs_info; in sb_test() local
2132 return c->vi.cdev == c1->vi.cdev; in sb_test()
2145 struct ubifs_info *c; in ubifs_mount() local
2164 c = alloc_ubifs_info(ubi); in ubifs_mount()
2165 if (!c) { in ubifs_mount()
2170 dbg_gen("opened ubi%d_%d", c->vi.ubi_num, c->vi.vol_id); in ubifs_mount()
2172 sb = sget(fs_type, sb_test, sb_set, flags, c); in ubifs_mount()
2175 kfree(c); in ubifs_mount()
2181 kfree(c); in ubifs_mount()
2197 ubifs_msg(c, "full atime support is enabled."); in ubifs_mount()
2215 struct ubifs_info *c = s->s_fs_info; in kill_ubifs_super() local
2217 kfree(c); in kill_ubifs_super()