Lines Matching refs:c
55 static int validate_inode(struct ubifs_info *c, const struct inode *inode) in validate_inode() argument
60 if (inode->i_size > c->max_inode_sz) { in validate_inode()
61 ubifs_err(c, "inode is too large (%lld)", in validate_inode()
67 ubifs_err(c, "unknown compression type %d", ui->compr_type); in validate_inode()
80 if (!ubifs_compr_present(c, ui->compr_type)) { in validate_inode()
81 ubifs_warn(c, "inode %lu uses '%s' compression, but it was not compiled in", in validate_inode()
82 inode->i_ino, ubifs_compr_name(c, ui->compr_type)); in validate_inode()
85 err = dbg_check_dir(c, inode); in validate_inode()
94 struct ubifs_info *c = sb->s_fs_info; in ubifs_iget() local
113 ino_key_init(c, &key, inode->i_ino); in ubifs_iget()
115 err = ubifs_tnc_lookup(c, &key, ino); in ubifs_iget()
147 err = validate_inode(c, inode); in ubifs_iget()
237 ubifs_err(c, "inode %lu validation failed, error %d", inode->i_ino, err); in ubifs_iget()
238 ubifs_dump_node(c, ino); in ubifs_iget()
239 ubifs_dump_inode(c, inode); in ubifs_iget()
244 ubifs_err(c, "failed to read inode %lu, error %d", inode->i_ino, err); in ubifs_iget()
280 struct ubifs_info *c = inode->i_sb->s_fs_info; in ubifs_write_inode() local
283 ubifs_assert(c, !ui->xattr); in ubifs_write_inode()
307 err = ubifs_jnl_write_inode(c, inode); in ubifs_write_inode()
309 ubifs_err(c, "can't write inode %lu, error %d", in ubifs_write_inode()
312 err = dbg_check_inode_size(c, inode, ui->ui_size); in ubifs_write_inode()
317 ubifs_release_dirty_inode_budget(c, ui); in ubifs_write_inode()
334 struct ubifs_info *c = inode->i_sb->s_fs_info; in ubifs_evict_inode() local
346 ubifs_assert(c, !atomic_read(&inode->i_count)); in ubifs_evict_inode()
357 err = ubifs_jnl_delete_inode(c, inode); in ubifs_evict_inode()
363 ubifs_err(c, "can't delete inode %lu, error %d", in ubifs_evict_inode()
368 ubifs_release_dirty_inode_budget(c, ui); in ubifs_evict_inode()
371 c->bi.nospace = c->bi.nospace_rp = 0; in ubifs_evict_inode()
381 struct ubifs_info *c = inode->i_sb->s_fs_info; in ubifs_dirty_inode() local
384 ubifs_assert(c, mutex_is_locked(&ui->ui_mutex)); in ubifs_dirty_inode()
393 struct ubifs_info *c = dentry->d_sb->s_fs_info; in ubifs_statfs() local
395 __le32 *uuid = (__le32 *)c->uuid; in ubifs_statfs()
397 free = ubifs_get_free_space(c); in ubifs_statfs()
403 buf->f_blocks = c->block_cnt; in ubifs_statfs()
405 if (free > c->report_rp_size) in ubifs_statfs()
406 buf->f_bavail = (free - c->report_rp_size) >> UBIFS_BLOCK_SHIFT; in ubifs_statfs()
414 ubifs_assert(c, buf->f_bfree <= c->block_cnt); in ubifs_statfs()
420 struct ubifs_info *c = root->d_sb->s_fs_info; in ubifs_show_options() local
422 if (c->mount_opts.unmount_mode == 2) in ubifs_show_options()
424 else if (c->mount_opts.unmount_mode == 1) in ubifs_show_options()
427 if (c->mount_opts.bulk_read == 2) in ubifs_show_options()
429 else if (c->mount_opts.bulk_read == 1) in ubifs_show_options()
432 if (c->mount_opts.chk_data_crc == 2) in ubifs_show_options()
434 else if (c->mount_opts.chk_data_crc == 1) in ubifs_show_options()
437 if (c->mount_opts.override_compr) { in ubifs_show_options()
439 ubifs_compr_name(c, c->mount_opts.compr_type)); in ubifs_show_options()
442 seq_printf(s, ",assert=%s", ubifs_assert_action_name(c)); in ubifs_show_options()
443 seq_printf(s, ",ubi=%d,vol=%d", c->vi.ubi_num, c->vi.vol_id); in ubifs_show_options()
451 struct ubifs_info *c = sb->s_fs_info; in ubifs_sync_fs() local
465 for (i = 0; i < c->jhead_cnt; i++) { in ubifs_sync_fs()
466 err = ubifs_wbuf_sync(&c->jheads[i].wbuf); in ubifs_sync_fs()
478 err = ubifs_run_commit(c); in ubifs_sync_fs()
482 return ubi_sync(c->vi.ubi_num); in ubifs_sync_fs()
494 static int init_constants_early(struct ubifs_info *c) in init_constants_early() argument
496 if (c->vi.corrupted) { in init_constants_early()
497 ubifs_warn(c, "UBI volume is corrupted - read-only mode"); in init_constants_early()
498 c->ro_media = 1; in init_constants_early()
501 if (c->di.ro_mode) { in init_constants_early()
502 ubifs_msg(c, "read-only UBI device"); in init_constants_early()
503 c->ro_media = 1; in init_constants_early()
506 if (c->vi.vol_type == UBI_STATIC_VOLUME) { in init_constants_early()
507 ubifs_msg(c, "static UBI volume - read-only mode"); in init_constants_early()
508 c->ro_media = 1; in init_constants_early()
511 c->leb_cnt = c->vi.size; in init_constants_early()
512 c->leb_size = c->vi.usable_leb_size; in init_constants_early()
513 c->leb_start = c->di.leb_start; in init_constants_early()
514 c->half_leb_size = c->leb_size / 2; in init_constants_early()
515 c->min_io_size = c->di.min_io_size; in init_constants_early()
516 c->min_io_shift = fls(c->min_io_size) - 1; in init_constants_early()
517 c->max_write_size = c->di.max_write_size; in init_constants_early()
518 c->max_write_shift = fls(c->max_write_size) - 1; in init_constants_early()
520 if (c->leb_size < UBIFS_MIN_LEB_SZ) { in init_constants_early()
521 ubifs_errc(c, "too small LEBs (%d bytes), min. is %d bytes", in init_constants_early()
522 c->leb_size, UBIFS_MIN_LEB_SZ); in init_constants_early()
526 if (c->leb_cnt < UBIFS_MIN_LEB_CNT) { in init_constants_early()
527 ubifs_errc(c, "too few LEBs (%d), min. is %d", in init_constants_early()
528 c->leb_cnt, UBIFS_MIN_LEB_CNT); in init_constants_early()
532 if (!is_power_of_2(c->min_io_size)) { in init_constants_early()
533 ubifs_errc(c, "bad min. I/O size %d", c->min_io_size); in init_constants_early()
541 if (c->max_write_size < c->min_io_size || in init_constants_early()
542 c->max_write_size % c->min_io_size || in init_constants_early()
543 !is_power_of_2(c->max_write_size)) { in init_constants_early()
544 ubifs_errc(c, "bad write buffer size %d for %d min. I/O unit", in init_constants_early()
545 c->max_write_size, c->min_io_size); in init_constants_early()
554 if (c->min_io_size < 8) { in init_constants_early()
555 c->min_io_size = 8; in init_constants_early()
556 c->min_io_shift = 3; in init_constants_early()
557 if (c->max_write_size < c->min_io_size) { in init_constants_early()
558 c->max_write_size = c->min_io_size; in init_constants_early()
559 c->max_write_shift = c->min_io_shift; in init_constants_early()
563 c->ref_node_alsz = ALIGN(UBIFS_REF_NODE_SZ, c->min_io_size); in init_constants_early()
564 c->mst_node_alsz = ALIGN(UBIFS_MST_NODE_SZ, c->min_io_size); in init_constants_early()
570 c->ranges[UBIFS_PAD_NODE].len = UBIFS_PAD_NODE_SZ; in init_constants_early()
571 c->ranges[UBIFS_SB_NODE].len = UBIFS_SB_NODE_SZ; in init_constants_early()
572 c->ranges[UBIFS_MST_NODE].len = UBIFS_MST_NODE_SZ; in init_constants_early()
573 c->ranges[UBIFS_REF_NODE].len = UBIFS_REF_NODE_SZ; in init_constants_early()
574 c->ranges[UBIFS_TRUN_NODE].len = UBIFS_TRUN_NODE_SZ; in init_constants_early()
575 c->ranges[UBIFS_CS_NODE].len = UBIFS_CS_NODE_SZ; in init_constants_early()
576 c->ranges[UBIFS_AUTH_NODE].min_len = UBIFS_AUTH_NODE_SZ; in init_constants_early()
577 c->ranges[UBIFS_AUTH_NODE].max_len = UBIFS_AUTH_NODE_SZ + in init_constants_early()
579 c->ranges[UBIFS_SIG_NODE].min_len = UBIFS_SIG_NODE_SZ; in init_constants_early()
580 c->ranges[UBIFS_SIG_NODE].max_len = c->leb_size - UBIFS_SB_NODE_SZ; in init_constants_early()
582 c->ranges[UBIFS_INO_NODE].min_len = UBIFS_INO_NODE_SZ; in init_constants_early()
583 c->ranges[UBIFS_INO_NODE].max_len = UBIFS_MAX_INO_NODE_SZ; in init_constants_early()
584 c->ranges[UBIFS_ORPH_NODE].min_len = in init_constants_early()
586 c->ranges[UBIFS_ORPH_NODE].max_len = c->leb_size; in init_constants_early()
587 c->ranges[UBIFS_DENT_NODE].min_len = UBIFS_DENT_NODE_SZ; in init_constants_early()
588 c->ranges[UBIFS_DENT_NODE].max_len = UBIFS_MAX_DENT_NODE_SZ; in init_constants_early()
589 c->ranges[UBIFS_XENT_NODE].min_len = UBIFS_XENT_NODE_SZ; in init_constants_early()
590 c->ranges[UBIFS_XENT_NODE].max_len = UBIFS_MAX_XENT_NODE_SZ; in init_constants_early()
591 c->ranges[UBIFS_DATA_NODE].min_len = UBIFS_DATA_NODE_SZ; in init_constants_early()
592 c->ranges[UBIFS_DATA_NODE].max_len = UBIFS_MAX_DATA_NODE_SZ; in init_constants_early()
597 c->ranges[UBIFS_IDX_NODE].min_len = UBIFS_IDX_NODE_SZ + UBIFS_BRANCH_SZ; in init_constants_early()
602 c->ranges[UBIFS_IDX_NODE].max_len = INT_MAX; in init_constants_early()
608 c->dead_wm = ALIGN(MIN_WRITE_SZ, c->min_io_size); in init_constants_early()
609 c->dark_wm = ALIGN(UBIFS_MAX_NODE_SZ, c->min_io_size); in init_constants_early()
616 c->leb_overhead = c->leb_size % UBIFS_MAX_DATA_NODE_SZ; in init_constants_early()
619 c->max_bu_buf_len = UBIFS_MAX_BULK_READ * UBIFS_MAX_DATA_NODE_SZ; in init_constants_early()
620 if (c->max_bu_buf_len > c->leb_size) in init_constants_early()
621 c->max_bu_buf_len = c->leb_size; in init_constants_early()
624 c->min_log_bytes = c->leb_size; in init_constants_early()
644 static int bud_wbuf_callback(struct ubifs_info *c, int lnum, int free, int pad) in bud_wbuf_callback() argument
646 return ubifs_update_one_lp(c, lnum, free, pad, 0, 0); in bud_wbuf_callback()
658 static int init_constants_sb(struct ubifs_info *c) in init_constants_sb() argument
663 c->main_bytes = (long long)c->main_lebs * c->leb_size; in init_constants_sb()
664 c->max_znode_sz = sizeof(struct ubifs_znode) + in init_constants_sb()
665 c->fanout * sizeof(struct ubifs_zbranch); in init_constants_sb()
667 tmp = ubifs_idx_node_sz(c, 1); in init_constants_sb()
668 c->ranges[UBIFS_IDX_NODE].min_len = tmp; in init_constants_sb()
669 c->min_idx_node_sz = ALIGN(tmp, 8); in init_constants_sb()
671 tmp = ubifs_idx_node_sz(c, c->fanout); in init_constants_sb()
672 c->ranges[UBIFS_IDX_NODE].max_len = tmp; in init_constants_sb()
673 c->max_idx_node_sz = ALIGN(tmp, 8); in init_constants_sb()
676 tmp = UBIFS_CS_NODE_SZ + UBIFS_REF_NODE_SZ * c->jhead_cnt; in init_constants_sb()
677 tmp = ALIGN(tmp, c->min_io_size); in init_constants_sb()
678 if (tmp > c->leb_size) { in init_constants_sb()
679 ubifs_err(c, "too small LEB size %d, at least %d needed", in init_constants_sb()
680 c->leb_size, tmp); in init_constants_sb()
688 tmp64 = c->max_bud_bytes + c->leb_size - 1; in init_constants_sb()
689 c->max_bud_cnt = div_u64(tmp64, c->leb_size); in init_constants_sb()
690 tmp = (c->ref_node_alsz * c->max_bud_cnt + c->leb_size - 1); in init_constants_sb()
691 tmp /= c->leb_size; in init_constants_sb()
693 if (c->log_lebs < tmp) { in init_constants_sb()
694 ubifs_err(c, "too small log %d LEBs, required min. %d LEBs", in init_constants_sb()
695 c->log_lebs, tmp); in init_constants_sb()
706 c->bi.page_budget = UBIFS_MAX_DATA_NODE_SZ * UBIFS_BLOCKS_PER_PAGE; in init_constants_sb()
707 c->bi.inode_budget = UBIFS_INO_NODE_SZ; in init_constants_sb()
708 c->bi.dent_budget = UBIFS_MAX_DENT_NODE_SZ; in init_constants_sb()
717 c->bg_bud_bytes = (c->max_bud_bytes * 13) >> 4; in init_constants_sb()
725 tmp64 = (long long)(c->jhead_cnt + 1) * c->leb_size + 1; in init_constants_sb()
726 if (c->bg_bud_bytes < tmp64) in init_constants_sb()
727 c->bg_bud_bytes = tmp64; in init_constants_sb()
728 if (c->max_bud_bytes < tmp64 + c->leb_size) in init_constants_sb()
729 c->max_bud_bytes = tmp64 + c->leb_size; in init_constants_sb()
731 err = ubifs_calc_lpt_geom(c); in init_constants_sb()
736 c->idx_leb_size = c->leb_size - c->max_idx_node_sz; in init_constants_sb()
748 static void init_constants_master(struct ubifs_info *c) in init_constants_master() argument
752 c->bi.min_idx_lebs = ubifs_calc_min_idx_lebs(c); in init_constants_master()
753 c->report_rp_size = ubifs_reported_space(c, c->rp_size); in init_constants_master()
764 tmp64 = c->main_lebs - 1 - 1 - MIN_INDEX_LEBS - c->jhead_cnt + 1; in init_constants_master()
765 tmp64 *= (long long)c->leb_size - c->leb_overhead; in init_constants_master()
766 tmp64 = ubifs_reported_space(c, tmp64); in init_constants_master()
767 c->block_cnt = tmp64 >> UBIFS_BLOCK_SHIFT; in init_constants_master()
781 static int take_gc_lnum(struct ubifs_info *c) in take_gc_lnum() argument
785 if (c->gc_lnum == -1) { in take_gc_lnum()
786 ubifs_err(c, "no LEB for GC"); in take_gc_lnum()
791 err = ubifs_change_one_lp(c, c->gc_lnum, c->leb_size, 0, in take_gc_lnum()
803 static int alloc_wbufs(struct ubifs_info *c) in alloc_wbufs() argument
807 c->jheads = kcalloc(c->jhead_cnt, sizeof(struct ubifs_jhead), in alloc_wbufs()
809 if (!c->jheads) in alloc_wbufs()
813 for (i = 0; i < c->jhead_cnt; i++) { in alloc_wbufs()
814 INIT_LIST_HEAD(&c->jheads[i].buds_list); in alloc_wbufs()
815 err = ubifs_wbuf_init(c, &c->jheads[i].wbuf); in alloc_wbufs()
819 c->jheads[i].wbuf.sync_callback = &bud_wbuf_callback; in alloc_wbufs()
820 c->jheads[i].wbuf.jhead = i; in alloc_wbufs()
821 c->jheads[i].grouped = 1; in alloc_wbufs()
822 c->jheads[i].log_hash = ubifs_hash_get_desc(c); in alloc_wbufs()
823 if (IS_ERR(c->jheads[i].log_hash)) in alloc_wbufs()
831 c->jheads[GCHD].wbuf.no_timer = 1; in alloc_wbufs()
832 c->jheads[GCHD].grouped = 0; in alloc_wbufs()
838 kfree(c->jheads[i].log_hash); in alloc_wbufs()
847 static void free_wbufs(struct ubifs_info *c) in free_wbufs() argument
851 if (c->jheads) { in free_wbufs()
852 for (i = 0; i < c->jhead_cnt; i++) { in free_wbufs()
853 kfree(c->jheads[i].wbuf.buf); in free_wbufs()
854 kfree(c->jheads[i].wbuf.inodes); in free_wbufs()
855 kfree(c->jheads[i].log_hash); in free_wbufs()
857 kfree(c->jheads); in free_wbufs()
858 c->jheads = NULL; in free_wbufs()
866 static void free_orphans(struct ubifs_info *c) in free_orphans() argument
870 while (c->orph_dnext) { in free_orphans()
871 orph = c->orph_dnext; in free_orphans()
872 c->orph_dnext = orph->dnext; in free_orphans()
877 while (!list_empty(&c->orph_list)) { in free_orphans()
878 orph = list_entry(c->orph_list.next, struct ubifs_orphan, list); in free_orphans()
881 ubifs_err(c, "orphan list not empty at unmount"); in free_orphans()
884 vfree(c->orph_buf); in free_orphans()
885 c->orph_buf = NULL; in free_orphans()
892 static void free_buds(struct ubifs_info *c) in free_buds() argument
896 rbtree_postorder_for_each_entry_safe(bud, n, &c->buds, rb) in free_buds()
909 static int check_volume_empty(struct ubifs_info *c) in check_volume_empty() argument
913 c->empty = 1; in check_volume_empty()
914 for (lnum = 0; lnum < c->leb_cnt; lnum++) { in check_volume_empty()
915 err = ubifs_is_mapped(c, lnum); in check_volume_empty()
919 c->empty = 0; in check_volume_empty()
1006 static int ubifs_parse_options(struct ubifs_info *c, char *options, in ubifs_parse_options() argument
1029 c->mount_opts.unmount_mode = 2; in ubifs_parse_options()
1032 c->mount_opts.unmount_mode = 1; in ubifs_parse_options()
1035 c->mount_opts.bulk_read = 2; in ubifs_parse_options()
1036 c->bulk_read = 1; in ubifs_parse_options()
1039 c->mount_opts.bulk_read = 1; in ubifs_parse_options()
1040 c->bulk_read = 0; in ubifs_parse_options()
1043 c->mount_opts.chk_data_crc = 2; in ubifs_parse_options()
1044 c->no_chk_data_crc = 0; in ubifs_parse_options()
1047 c->mount_opts.chk_data_crc = 1; in ubifs_parse_options()
1048 c->no_chk_data_crc = 1; in ubifs_parse_options()
1057 c->mount_opts.compr_type = UBIFS_COMPR_NONE; in ubifs_parse_options()
1059 c->mount_opts.compr_type = UBIFS_COMPR_LZO; in ubifs_parse_options()
1061 c->mount_opts.compr_type = UBIFS_COMPR_ZLIB; in ubifs_parse_options()
1063 c->mount_opts.compr_type = UBIFS_COMPR_ZSTD; in ubifs_parse_options()
1065 ubifs_err(c, "unknown compressor \"%s\"", name); //FIXME: is c ready? in ubifs_parse_options()
1070 c->mount_opts.override_compr = 1; in ubifs_parse_options()
1071 c->default_compr = c->mount_opts.compr_type; in ubifs_parse_options()
1081 c->assert_action = ASSACT_REPORT; in ubifs_parse_options()
1083 c->assert_action = ASSACT_RO; in ubifs_parse_options()
1085 c->assert_action = ASSACT_PANIC; in ubifs_parse_options()
1087 ubifs_err(c, "unknown assert action \"%s\"", act); in ubifs_parse_options()
1095 c->auth_key_name = kstrdup(args[0].from, GFP_KERNEL); in ubifs_parse_options()
1096 if (!c->auth_key_name) in ubifs_parse_options()
1100 c->auth_hash_name = kstrdup(args[0].from, GFP_KERNEL); in ubifs_parse_options()
1101 if (!c->auth_hash_name) in ubifs_parse_options()
1109 struct super_block *sb = c->vfs_sb; in ubifs_parse_options()
1113 ubifs_err(c, "unrecognized mount option \"%s\" or missing value", in ubifs_parse_options()
1133 static void destroy_journal(struct ubifs_info *c) in destroy_journal() argument
1135 while (!list_empty(&c->unclean_leb_list)) { in destroy_journal()
1138 ucleb = list_entry(c->unclean_leb_list.next, in destroy_journal()
1143 while (!list_empty(&c->old_buds)) { in destroy_journal()
1146 bud = list_entry(c->old_buds.next, struct ubifs_bud, list); in destroy_journal()
1150 ubifs_destroy_idx_gc(c); in destroy_journal()
1151 ubifs_destroy_size_tree(c); in destroy_journal()
1152 ubifs_tnc_close(c); in destroy_journal()
1153 free_buds(c); in destroy_journal()
1160 static void bu_init(struct ubifs_info *c) in bu_init() argument
1162 ubifs_assert(c, c->bulk_read == 1); in bu_init()
1164 if (c->bu.buf) in bu_init()
1168 c->bu.buf = kmalloc(c->max_bu_buf_len, GFP_KERNEL | __GFP_NOWARN); in bu_init()
1169 if (!c->bu.buf) { in bu_init()
1170 if (c->max_bu_buf_len > UBIFS_KMALLOC_OK) { in bu_init()
1171 c->max_bu_buf_len = UBIFS_KMALLOC_OK; in bu_init()
1176 ubifs_warn(c, "cannot allocate %d bytes of memory for bulk-read, disabling it", in bu_init()
1177 c->max_bu_buf_len); in bu_init()
1178 c->mount_opts.bulk_read = 1; in bu_init()
1179 c->bulk_read = 0; in bu_init()
1191 static int check_free_space(struct ubifs_info *c) in check_free_space() argument
1193 ubifs_assert(c, c->dark_wm > 0); in check_free_space()
1194 if (c->lst.total_free + c->lst.total_dirty < c->dark_wm) { in check_free_space()
1195 ubifs_err(c, "insufficient free space to mount in R/W mode"); in check_free_space()
1196 ubifs_dump_budg(c, &c->bi); in check_free_space()
1197 ubifs_dump_lprops(c); in check_free_space()
1210 static int mount_ubifs(struct ubifs_info *c) in mount_ubifs() argument
1216 c->ro_mount = !!sb_rdonly(c->vfs_sb); in mount_ubifs()
1218 c->probing = !!(c->vfs_sb->s_flags & SB_SILENT); in mount_ubifs()
1220 err = init_constants_early(c); in mount_ubifs()
1224 err = ubifs_debugging_init(c); in mount_ubifs()
1228 err = check_volume_empty(c); in mount_ubifs()
1232 if (c->empty && (c->ro_mount || c->ro_media)) { in mount_ubifs()
1237 ubifs_err(c, "can't format empty UBI volume: read-only %s", in mount_ubifs()
1238 c->ro_media ? "UBI volume" : "mount"); in mount_ubifs()
1243 if (c->ro_media && !c->ro_mount) { in mount_ubifs()
1244 ubifs_err(c, "cannot mount read-write - read-only media"); in mount_ubifs()
1255 c->bottom_up_buf = kmalloc_array(BOTTOM_UP_HEIGHT, sizeof(int), in mount_ubifs()
1257 if (!c->bottom_up_buf) in mount_ubifs()
1260 c->sbuf = vmalloc(c->leb_size); in mount_ubifs()
1261 if (!c->sbuf) in mount_ubifs()
1264 if (!c->ro_mount) { in mount_ubifs()
1265 c->ileb_buf = vmalloc(c->leb_size); in mount_ubifs()
1266 if (!c->ileb_buf) in mount_ubifs()
1270 if (c->bulk_read == 1) in mount_ubifs()
1271 bu_init(c); in mount_ubifs()
1273 if (!c->ro_mount) { in mount_ubifs()
1274 c->write_reserve_buf = kmalloc(COMPRESSED_DATA_NODE_BUF_SZ + \ in mount_ubifs()
1277 if (!c->write_reserve_buf) in mount_ubifs()
1281 c->mounting = 1; in mount_ubifs()
1283 if (c->auth_key_name) { in mount_ubifs()
1285 err = ubifs_init_authentication(c); in mount_ubifs()
1289 ubifs_err(c, "auth_key_name, but UBIFS is built without" in mount_ubifs()
1296 err = ubifs_read_superblock(c); in mount_ubifs()
1300 c->probing = 0; in mount_ubifs()
1306 if (!ubifs_compr_present(c, c->default_compr)) { in mount_ubifs()
1307 ubifs_err(c, "'compressor \"%s\" is not compiled in", in mount_ubifs()
1308 ubifs_compr_name(c, c->default_compr)); in mount_ubifs()
1313 err = init_constants_sb(c); in mount_ubifs()
1317 sz = ALIGN(c->max_idx_node_sz, c->min_io_size) * 2; in mount_ubifs()
1318 c->cbuf = kmalloc(sz, GFP_NOFS); in mount_ubifs()
1319 if (!c->cbuf) { in mount_ubifs()
1324 err = alloc_wbufs(c); in mount_ubifs()
1328 sprintf(c->bgt_name, BGT_NAME_PATTERN, c->vi.ubi_num, c->vi.vol_id); in mount_ubifs()
1329 if (!c->ro_mount) { in mount_ubifs()
1331 c->bgt = kthread_create(ubifs_bg_thread, c, "%s", c->bgt_name); in mount_ubifs()
1332 if (IS_ERR(c->bgt)) { in mount_ubifs()
1333 err = PTR_ERR(c->bgt); in mount_ubifs()
1334 c->bgt = NULL; in mount_ubifs()
1335 ubifs_err(c, "cannot spawn \"%s\", error %d", in mount_ubifs()
1336 c->bgt_name, err); in mount_ubifs()
1339 wake_up_process(c->bgt); in mount_ubifs()
1342 err = ubifs_read_master(c); in mount_ubifs()
1346 init_constants_master(c); in mount_ubifs()
1348 if ((c->mst_node->flags & cpu_to_le32(UBIFS_MST_DIRTY)) != 0) { in mount_ubifs()
1349 ubifs_msg(c, "recovery needed"); in mount_ubifs()
1350 c->need_recovery = 1; in mount_ubifs()
1353 if (c->need_recovery && !c->ro_mount) { in mount_ubifs()
1354 err = ubifs_recover_inl_heads(c, c->sbuf); in mount_ubifs()
1359 err = ubifs_lpt_init(c, 1, !c->ro_mount); in mount_ubifs()
1363 if (!c->ro_mount && c->space_fixup) { in mount_ubifs()
1364 err = ubifs_fixup_free_space(c); in mount_ubifs()
1369 if (!c->ro_mount && !c->need_recovery) { in mount_ubifs()
1374 c->mst_node->flags |= cpu_to_le32(UBIFS_MST_DIRTY); in mount_ubifs()
1375 err = ubifs_write_master(c); in mount_ubifs()
1386 if (ubifs_authenticated(c) && ubifs_hmac_zero(c, c->sup_node->hmac)) { in mount_ubifs()
1387 err = ubifs_hmac_wkm(c, c->sup_node->hmac_wkm); in mount_ubifs()
1390 c->superblock_need_write = 1; in mount_ubifs()
1393 if (!c->ro_mount && c->superblock_need_write) { in mount_ubifs()
1394 err = ubifs_write_sb_node(c, c->sup_node); in mount_ubifs()
1397 c->superblock_need_write = 0; in mount_ubifs()
1400 err = dbg_check_idx_size(c, c->bi.old_idx_sz); in mount_ubifs()
1404 err = ubifs_replay_journal(c); in mount_ubifs()
1409 c->bi.min_idx_lebs = ubifs_calc_min_idx_lebs(c); in mount_ubifs()
1411 err = ubifs_mount_orphans(c, c->need_recovery, c->ro_mount); in mount_ubifs()
1415 if (!c->ro_mount) { in mount_ubifs()
1418 err = check_free_space(c); in mount_ubifs()
1423 lnum = c->lhead_lnum + 1; in mount_ubifs()
1424 if (lnum >= UBIFS_LOG_LNUM + c->log_lebs) in mount_ubifs()
1426 if (lnum == c->ltail_lnum) { in mount_ubifs()
1427 err = ubifs_consolidate_log(c); in mount_ubifs()
1432 if (c->need_recovery) { in mount_ubifs()
1433 if (!ubifs_authenticated(c)) { in mount_ubifs()
1434 err = ubifs_recover_size(c, true); in mount_ubifs()
1439 err = ubifs_rcvry_gc_commit(c); in mount_ubifs()
1443 if (ubifs_authenticated(c)) { in mount_ubifs()
1444 err = ubifs_recover_size(c, false); in mount_ubifs()
1449 err = take_gc_lnum(c); in mount_ubifs()
1457 err = ubifs_leb_unmap(c, c->gc_lnum); in mount_ubifs()
1462 err = dbg_check_lprops(c); in mount_ubifs()
1465 } else if (c->need_recovery) { in mount_ubifs()
1466 err = ubifs_recover_size(c, false); in mount_ubifs()
1476 err = take_gc_lnum(c); in mount_ubifs()
1482 list_add_tail(&c->infos_list, &ubifs_infos); in mount_ubifs()
1485 if (c->need_recovery) { in mount_ubifs()
1486 if (c->ro_mount) in mount_ubifs()
1487 ubifs_msg(c, "recovery deferred"); in mount_ubifs()
1489 c->need_recovery = 0; in mount_ubifs()
1490 ubifs_msg(c, "recovery completed"); in mount_ubifs()
1496 ubifs_assert(c, c->lst.taken_empty_lebs > 0); in mount_ubifs()
1499 ubifs_assert(c, c->lst.taken_empty_lebs > 0); in mount_ubifs()
1501 err = dbg_check_filesystem(c); in mount_ubifs()
1505 dbg_debugfs_init_fs(c); in mount_ubifs()
1507 c->mounting = 0; in mount_ubifs()
1509 ubifs_msg(c, "UBIFS: mounted UBI device %d, volume %d, name \"%s\"%s", in mount_ubifs()
1510 c->vi.ubi_num, c->vi.vol_id, c->vi.name, in mount_ubifs()
1511 c->ro_mount ? ", R/O mode" : ""); in mount_ubifs()
1512 x = (long long)c->main_lebs * c->leb_size; in mount_ubifs()
1513 y = (long long)c->log_lebs * c->leb_size + c->max_bud_bytes; in mount_ubifs()
1514 ubifs_msg(c, "LEB size: %d bytes (%d KiB), min./max. I/O unit sizes: %d bytes/%d bytes", in mount_ubifs()
1515 c->leb_size, c->leb_size >> 10, c->min_io_size, in mount_ubifs()
1516 c->max_write_size); in mount_ubifs()
1517 …ubifs_msg(c, "FS size: %lld bytes (%lld MiB, %d LEBs), journal size %lld bytes (%lld MiB, %d LEBs)… in mount_ubifs()
1518 x, x >> 20, c->main_lebs, in mount_ubifs()
1519 y, y >> 20, c->log_lebs + c->max_bud_cnt); in mount_ubifs()
1520 ubifs_msg(c, "reserved for root: %llu bytes (%llu KiB)", in mount_ubifs()
1521 c->report_rp_size, c->report_rp_size >> 10); in mount_ubifs()
1522 ubifs_msg(c, "media format: w%d/r%d (latest is w%d/r%d), UUID %pUB%s", in mount_ubifs()
1523 c->fmt_version, c->ro_compat_version, in mount_ubifs()
1524 UBIFS_FORMAT_VERSION, UBIFS_RO_COMPAT_VERSION, c->uuid, in mount_ubifs()
1525 c->big_lpt ? ", big LPT model" : ", small LPT model"); in mount_ubifs()
1527 dbg_gen("default compressor: %s", ubifs_compr_name(c, c->default_compr)); in mount_ubifs()
1529 c->jhead_cnt - NONDATA_JHEADS_CNT); in mount_ubifs()
1531 c->log_lebs, UBIFS_LOG_LNUM, c->log_last); in mount_ubifs()
1533 c->lpt_lebs, c->lpt_first, c->lpt_last); in mount_ubifs()
1535 c->orph_lebs, c->orph_first, c->orph_last); in mount_ubifs()
1537 c->main_lebs, c->main_first, c->leb_cnt - 1); in mount_ubifs()
1538 dbg_gen("index LEBs: %d", c->lst.idx_lebs); in mount_ubifs()
1540 c->bi.old_idx_sz, c->bi.old_idx_sz >> 10, in mount_ubifs()
1541 c->bi.old_idx_sz >> 20); in mount_ubifs()
1542 dbg_gen("key hash type: %d", c->key_hash_type); in mount_ubifs()
1543 dbg_gen("tree fanout: %d", c->fanout); in mount_ubifs()
1544 dbg_gen("reserved GC LEB: %d", c->gc_lnum); in mount_ubifs()
1545 dbg_gen("max. znode size %d", c->max_znode_sz); in mount_ubifs()
1546 dbg_gen("max. index node size %d", c->max_idx_node_sz); in mount_ubifs()
1555 UBIFS_MAX_DENT_NODE_SZ, ubifs_idx_node_sz(c, c->fanout)); in mount_ubifs()
1556 dbg_gen("dead watermark: %d", c->dead_wm); in mount_ubifs()
1557 dbg_gen("dark watermark: %d", c->dark_wm); in mount_ubifs()
1558 dbg_gen("LEB overhead: %d", c->leb_overhead); in mount_ubifs()
1559 x = (long long)c->main_lebs * c->dark_wm; in mount_ubifs()
1563 c->max_bud_bytes, c->max_bud_bytes >> 10, in mount_ubifs()
1564 c->max_bud_bytes >> 20); in mount_ubifs()
1566 c->bg_bud_bytes, c->bg_bud_bytes >> 10, in mount_ubifs()
1567 c->bg_bud_bytes >> 20); in mount_ubifs()
1569 c->bud_bytes, c->bud_bytes >> 10, c->bud_bytes >> 20); in mount_ubifs()
1570 dbg_gen("max. seq. number: %llu", c->max_sqnum); in mount_ubifs()
1571 dbg_gen("commit number: %llu", c->cmt_no); in mount_ubifs()
1572 dbg_gen("max. xattrs per inode: %d", ubifs_xattr_max_cnt(c)); in mount_ubifs()
1573 dbg_gen("max orphans: %d", c->max_orphans); in mount_ubifs()
1579 list_del(&c->infos_list); in mount_ubifs()
1582 free_orphans(c); in mount_ubifs()
1584 destroy_journal(c); in mount_ubifs()
1586 ubifs_lpt_free(c, 0); in mount_ubifs()
1588 kfree(c->mst_node); in mount_ubifs()
1589 kfree(c->rcvrd_mst_node); in mount_ubifs()
1590 if (c->bgt) in mount_ubifs()
1591 kthread_stop(c->bgt); in mount_ubifs()
1593 free_wbufs(c); in mount_ubifs()
1595 kfree(c->cbuf); in mount_ubifs()
1597 kfree(c->write_reserve_buf); in mount_ubifs()
1598 kfree(c->bu.buf); in mount_ubifs()
1599 vfree(c->ileb_buf); in mount_ubifs()
1600 vfree(c->sbuf); in mount_ubifs()
1601 kfree(c->bottom_up_buf); in mount_ubifs()
1602 ubifs_debugging_exit(c); in mount_ubifs()
1615 static void ubifs_umount(struct ubifs_info *c) in ubifs_umount() argument
1617 dbg_gen("un-mounting UBI device %d, volume %d", c->vi.ubi_num, in ubifs_umount()
1618 c->vi.vol_id); in ubifs_umount()
1620 dbg_debugfs_exit_fs(c); in ubifs_umount()
1622 list_del(&c->infos_list); in ubifs_umount()
1625 if (c->bgt) in ubifs_umount()
1626 kthread_stop(c->bgt); in ubifs_umount()
1628 destroy_journal(c); in ubifs_umount()
1629 free_wbufs(c); in ubifs_umount()
1630 free_orphans(c); in ubifs_umount()
1631 ubifs_lpt_free(c, 0); in ubifs_umount()
1632 ubifs_exit_authentication(c); in ubifs_umount()
1634 kfree(c->auth_key_name); in ubifs_umount()
1635 kfree(c->auth_hash_name); in ubifs_umount()
1636 kfree(c->cbuf); in ubifs_umount()
1637 kfree(c->rcvrd_mst_node); in ubifs_umount()
1638 kfree(c->mst_node); in ubifs_umount()
1639 kfree(c->write_reserve_buf); in ubifs_umount()
1640 kfree(c->bu.buf); in ubifs_umount()
1641 vfree(c->ileb_buf); in ubifs_umount()
1642 vfree(c->sbuf); in ubifs_umount()
1643 kfree(c->bottom_up_buf); in ubifs_umount()
1644 ubifs_debugging_exit(c); in ubifs_umount()
1655 static int ubifs_remount_rw(struct ubifs_info *c) in ubifs_remount_rw() argument
1659 if (c->rw_incompat) { in ubifs_remount_rw()
1660 ubifs_err(c, "the file-system is not R/W-compatible"); in ubifs_remount_rw()
1661 …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()
1662 c->fmt_version, c->ro_compat_version, in ubifs_remount_rw()
1667 mutex_lock(&c->umount_mutex); in ubifs_remount_rw()
1668 dbg_save_space_info(c); in ubifs_remount_rw()
1669 c->remounting_rw = 1; in ubifs_remount_rw()
1670 c->ro_mount = 0; in ubifs_remount_rw()
1672 if (c->space_fixup) { in ubifs_remount_rw()
1673 err = ubifs_fixup_free_space(c); in ubifs_remount_rw()
1678 err = check_free_space(c); in ubifs_remount_rw()
1682 if (c->need_recovery) { in ubifs_remount_rw()
1683 ubifs_msg(c, "completing deferred recovery"); in ubifs_remount_rw()
1684 err = ubifs_write_rcvrd_mst_node(c); in ubifs_remount_rw()
1687 if (!ubifs_authenticated(c)) { in ubifs_remount_rw()
1688 err = ubifs_recover_size(c, true); in ubifs_remount_rw()
1692 err = ubifs_clean_lebs(c, c->sbuf); in ubifs_remount_rw()
1695 err = ubifs_recover_inl_heads(c, c->sbuf); in ubifs_remount_rw()
1700 ubifs_assert(c, c->tot_orphans == 0); in ubifs_remount_rw()
1701 err = ubifs_clear_orphans(c); in ubifs_remount_rw()
1706 if (!(c->mst_node->flags & cpu_to_le32(UBIFS_MST_DIRTY))) { in ubifs_remount_rw()
1707 c->mst_node->flags |= cpu_to_le32(UBIFS_MST_DIRTY); in ubifs_remount_rw()
1708 err = ubifs_write_master(c); in ubifs_remount_rw()
1713 if (c->superblock_need_write) { in ubifs_remount_rw()
1714 struct ubifs_sb_node *sup = c->sup_node; in ubifs_remount_rw()
1716 err = ubifs_write_sb_node(c, sup); in ubifs_remount_rw()
1720 c->superblock_need_write = 0; in ubifs_remount_rw()
1723 c->ileb_buf = vmalloc(c->leb_size); in ubifs_remount_rw()
1724 if (!c->ileb_buf) { in ubifs_remount_rw()
1729 c->write_reserve_buf = kmalloc(COMPRESSED_DATA_NODE_BUF_SZ + \ in ubifs_remount_rw()
1731 if (!c->write_reserve_buf) { in ubifs_remount_rw()
1736 err = ubifs_lpt_init(c, 0, 1); in ubifs_remount_rw()
1741 c->bgt = kthread_create(ubifs_bg_thread, c, "%s", c->bgt_name); in ubifs_remount_rw()
1742 if (IS_ERR(c->bgt)) { in ubifs_remount_rw()
1743 err = PTR_ERR(c->bgt); in ubifs_remount_rw()
1744 c->bgt = NULL; in ubifs_remount_rw()
1745 ubifs_err(c, "cannot spawn \"%s\", error %d", in ubifs_remount_rw()
1746 c->bgt_name, err); in ubifs_remount_rw()
1749 wake_up_process(c->bgt); in ubifs_remount_rw()
1751 c->orph_buf = vmalloc(c->leb_size); in ubifs_remount_rw()
1752 if (!c->orph_buf) { in ubifs_remount_rw()
1758 lnum = c->lhead_lnum + 1; in ubifs_remount_rw()
1759 if (lnum >= UBIFS_LOG_LNUM + c->log_lebs) in ubifs_remount_rw()
1761 if (lnum == c->ltail_lnum) { in ubifs_remount_rw()
1762 err = ubifs_consolidate_log(c); in ubifs_remount_rw()
1767 if (c->need_recovery) { in ubifs_remount_rw()
1768 err = ubifs_rcvry_gc_commit(c); in ubifs_remount_rw()
1772 if (ubifs_authenticated(c)) { in ubifs_remount_rw()
1773 err = ubifs_recover_size(c, false); in ubifs_remount_rw()
1778 err = ubifs_leb_unmap(c, c->gc_lnum); in ubifs_remount_rw()
1784 c->remounting_rw = 0; in ubifs_remount_rw()
1786 if (c->need_recovery) { in ubifs_remount_rw()
1787 c->need_recovery = 0; in ubifs_remount_rw()
1788 ubifs_msg(c, "deferred recovery completed"); in ubifs_remount_rw()
1800 err = dbg_check_space_info(c); in ubifs_remount_rw()
1803 mutex_unlock(&c->umount_mutex); in ubifs_remount_rw()
1807 c->ro_mount = 1; in ubifs_remount_rw()
1808 vfree(c->orph_buf); in ubifs_remount_rw()
1809 c->orph_buf = NULL; in ubifs_remount_rw()
1810 if (c->bgt) { in ubifs_remount_rw()
1811 kthread_stop(c->bgt); in ubifs_remount_rw()
1812 c->bgt = NULL; in ubifs_remount_rw()
1814 free_wbufs(c); in ubifs_remount_rw()
1815 kfree(c->write_reserve_buf); in ubifs_remount_rw()
1816 c->write_reserve_buf = NULL; in ubifs_remount_rw()
1817 vfree(c->ileb_buf); in ubifs_remount_rw()
1818 c->ileb_buf = NULL; in ubifs_remount_rw()
1819 ubifs_lpt_free(c, 1); in ubifs_remount_rw()
1820 c->remounting_rw = 0; in ubifs_remount_rw()
1821 mutex_unlock(&c->umount_mutex); in ubifs_remount_rw()
1832 static void ubifs_remount_ro(struct ubifs_info *c) in ubifs_remount_ro() argument
1836 ubifs_assert(c, !c->need_recovery); in ubifs_remount_ro()
1837 ubifs_assert(c, !c->ro_mount); in ubifs_remount_ro()
1839 mutex_lock(&c->umount_mutex); in ubifs_remount_ro()
1840 if (c->bgt) { in ubifs_remount_ro()
1841 kthread_stop(c->bgt); in ubifs_remount_ro()
1842 c->bgt = NULL; in ubifs_remount_ro()
1845 dbg_save_space_info(c); in ubifs_remount_ro()
1847 for (i = 0; i < c->jhead_cnt; i++) { in ubifs_remount_ro()
1848 err = ubifs_wbuf_sync(&c->jheads[i].wbuf); in ubifs_remount_ro()
1850 ubifs_ro_mode(c, err); in ubifs_remount_ro()
1853 c->mst_node->flags &= ~cpu_to_le32(UBIFS_MST_DIRTY); in ubifs_remount_ro()
1854 c->mst_node->flags |= cpu_to_le32(UBIFS_MST_NO_ORPHS); in ubifs_remount_ro()
1855 c->mst_node->gc_lnum = cpu_to_le32(c->gc_lnum); in ubifs_remount_ro()
1856 err = ubifs_write_master(c); in ubifs_remount_ro()
1858 ubifs_ro_mode(c, err); in ubifs_remount_ro()
1860 vfree(c->orph_buf); in ubifs_remount_ro()
1861 c->orph_buf = NULL; in ubifs_remount_ro()
1862 kfree(c->write_reserve_buf); in ubifs_remount_ro()
1863 c->write_reserve_buf = NULL; in ubifs_remount_ro()
1864 vfree(c->ileb_buf); in ubifs_remount_ro()
1865 c->ileb_buf = NULL; in ubifs_remount_ro()
1866 ubifs_lpt_free(c, 1); in ubifs_remount_ro()
1867 c->ro_mount = 1; in ubifs_remount_ro()
1868 err = dbg_check_space_info(c); in ubifs_remount_ro()
1870 ubifs_ro_mode(c, err); in ubifs_remount_ro()
1871 mutex_unlock(&c->umount_mutex); in ubifs_remount_ro()
1877 struct ubifs_info *c = sb->s_fs_info; in ubifs_put_super() local
1879 ubifs_msg(c, "un-mount UBI device %d", c->vi.ubi_num); in ubifs_put_super()
1886 if (!c->ro_error) { in ubifs_put_super()
1887 ubifs_assert(c, c->bi.idx_growth == 0); in ubifs_put_super()
1888 ubifs_assert(c, c->bi.dd_growth == 0); in ubifs_put_super()
1889 ubifs_assert(c, c->bi.data_growth == 0); in ubifs_put_super()
1898 mutex_lock(&c->umount_mutex); in ubifs_put_super()
1899 if (!c->ro_mount) { in ubifs_put_super()
1904 if (c->bgt) { in ubifs_put_super()
1905 kthread_stop(c->bgt); in ubifs_put_super()
1906 c->bgt = NULL; in ubifs_put_super()
1913 if (!c->ro_error) { in ubifs_put_super()
1917 for (i = 0; i < c->jhead_cnt; i++) { in ubifs_put_super()
1918 err = ubifs_wbuf_sync(&c->jheads[i].wbuf); in ubifs_put_super()
1920 ubifs_ro_mode(c, err); in ubifs_put_super()
1928 c->mst_node->flags &= ~cpu_to_le32(UBIFS_MST_DIRTY); in ubifs_put_super()
1929 c->mst_node->flags |= cpu_to_le32(UBIFS_MST_NO_ORPHS); in ubifs_put_super()
1930 c->mst_node->gc_lnum = cpu_to_le32(c->gc_lnum); in ubifs_put_super()
1931 err = ubifs_write_master(c); in ubifs_put_super()
1938 ubifs_err(c, "failed to write master node, error %d", in ubifs_put_super()
1941 for (i = 0; i < c->jhead_cnt; i++) in ubifs_put_super()
1943 hrtimer_cancel(&c->jheads[i].wbuf.timer); in ubifs_put_super()
1947 ubifs_umount(c); in ubifs_put_super()
1948 ubi_close_volume(c->ubi); in ubifs_put_super()
1949 mutex_unlock(&c->umount_mutex); in ubifs_put_super()
1955 struct ubifs_info *c = sb->s_fs_info; in ubifs_remount_fs() local
1960 err = ubifs_parse_options(c, data, 1); in ubifs_remount_fs()
1962 ubifs_err(c, "invalid or unknown remount parameter"); in ubifs_remount_fs()
1966 if (c->ro_mount && !(*flags & SB_RDONLY)) { in ubifs_remount_fs()
1967 if (c->ro_error) { in ubifs_remount_fs()
1968 ubifs_msg(c, "cannot re-mount R/W due to prior errors"); in ubifs_remount_fs()
1971 if (c->ro_media) { in ubifs_remount_fs()
1972 ubifs_msg(c, "cannot re-mount R/W - UBI volume is R/O"); in ubifs_remount_fs()
1975 err = ubifs_remount_rw(c); in ubifs_remount_fs()
1978 } else if (!c->ro_mount && (*flags & SB_RDONLY)) { in ubifs_remount_fs()
1979 if (c->ro_error) { in ubifs_remount_fs()
1980 ubifs_msg(c, "cannot re-mount R/O due to prior errors"); in ubifs_remount_fs()
1983 ubifs_remount_ro(c); in ubifs_remount_fs()
1986 if (c->bulk_read == 1) in ubifs_remount_fs()
1987 bu_init(c); in ubifs_remount_fs()
1990 mutex_lock(&c->bu_mutex); in ubifs_remount_fs()
1991 kfree(c->bu.buf); in ubifs_remount_fs()
1992 c->bu.buf = NULL; in ubifs_remount_fs()
1993 mutex_unlock(&c->bu_mutex); in ubifs_remount_fs()
1996 if (!c->need_recovery) in ubifs_remount_fs()
1997 ubifs_assert(c, c->lst.taken_empty_lebs > 0); in ubifs_remount_fs()
2083 struct ubifs_info *c; in alloc_ubifs_info() local
2085 c = kzalloc(sizeof(struct ubifs_info), GFP_KERNEL); in alloc_ubifs_info()
2086 if (c) { in alloc_ubifs_info()
2087 spin_lock_init(&c->cnt_lock); in alloc_ubifs_info()
2088 spin_lock_init(&c->cs_lock); in alloc_ubifs_info()
2089 spin_lock_init(&c->buds_lock); in alloc_ubifs_info()
2090 spin_lock_init(&c->space_lock); in alloc_ubifs_info()
2091 spin_lock_init(&c->orphan_lock); in alloc_ubifs_info()
2092 init_rwsem(&c->commit_sem); in alloc_ubifs_info()
2093 mutex_init(&c->lp_mutex); in alloc_ubifs_info()
2094 mutex_init(&c->tnc_mutex); in alloc_ubifs_info()
2095 mutex_init(&c->log_mutex); in alloc_ubifs_info()
2096 mutex_init(&c->umount_mutex); in alloc_ubifs_info()
2097 mutex_init(&c->bu_mutex); in alloc_ubifs_info()
2098 mutex_init(&c->write_reserve_mutex); in alloc_ubifs_info()
2099 init_waitqueue_head(&c->cmt_wq); in alloc_ubifs_info()
2100 c->buds = RB_ROOT; in alloc_ubifs_info()
2101 c->old_idx = RB_ROOT; in alloc_ubifs_info()
2102 c->size_tree = RB_ROOT; in alloc_ubifs_info()
2103 c->orph_tree = RB_ROOT; in alloc_ubifs_info()
2104 INIT_LIST_HEAD(&c->infos_list); in alloc_ubifs_info()
2105 INIT_LIST_HEAD(&c->idx_gc); in alloc_ubifs_info()
2106 INIT_LIST_HEAD(&c->replay_list); in alloc_ubifs_info()
2107 INIT_LIST_HEAD(&c->replay_buds); in alloc_ubifs_info()
2108 INIT_LIST_HEAD(&c->uncat_list); in alloc_ubifs_info()
2109 INIT_LIST_HEAD(&c->empty_list); in alloc_ubifs_info()
2110 INIT_LIST_HEAD(&c->freeable_list); in alloc_ubifs_info()
2111 INIT_LIST_HEAD(&c->frdi_idx_list); in alloc_ubifs_info()
2112 INIT_LIST_HEAD(&c->unclean_leb_list); in alloc_ubifs_info()
2113 INIT_LIST_HEAD(&c->old_buds); in alloc_ubifs_info()
2114 INIT_LIST_HEAD(&c->orph_list); in alloc_ubifs_info()
2115 INIT_LIST_HEAD(&c->orph_new); in alloc_ubifs_info()
2116 c->no_chk_data_crc = 1; in alloc_ubifs_info()
2117 c->assert_action = ASSACT_RO; in alloc_ubifs_info()
2119 c->highest_inum = UBIFS_FIRST_INO; in alloc_ubifs_info()
2120 c->lhead_lnum = c->ltail_lnum = UBIFS_LOG_LNUM; in alloc_ubifs_info()
2122 ubi_get_volume_info(ubi, &c->vi); in alloc_ubifs_info()
2123 ubi_get_device_info(c->vi.ubi_num, &c->di); in alloc_ubifs_info()
2125 return c; in alloc_ubifs_info()
2130 struct ubifs_info *c = sb->s_fs_info; in ubifs_fill_super() local
2134 c->vfs_sb = sb; in ubifs_fill_super()
2136 c->ubi = ubi_open_volume(c->vi.ubi_num, c->vi.vol_id, UBI_READWRITE); in ubifs_fill_super()
2137 if (IS_ERR(c->ubi)) { in ubifs_fill_super()
2138 err = PTR_ERR(c->ubi); in ubifs_fill_super()
2142 err = ubifs_parse_options(c, data, 0); in ubifs_fill_super()
2156 err = super_setup_bdi_name(sb, "ubifs_%d_%d", c->vi.ubi_num, in ubifs_fill_super()
2157 c->vi.vol_id); in ubifs_fill_super()
2161 sb->s_fs_info = c; in ubifs_fill_super()
2165 sb->s_maxbytes = c->max_inode_sz = key_max_inode_size(c); in ubifs_fill_super()
2166 if (c->max_inode_sz > MAX_LFS_FILESIZE) in ubifs_fill_super()
2167 sb->s_maxbytes = c->max_inode_sz = MAX_LFS_FILESIZE; in ubifs_fill_super()
2174 mutex_lock(&c->umount_mutex); in ubifs_fill_super()
2175 err = mount_ubifs(c); in ubifs_fill_super()
2177 ubifs_assert(c, err < 0); in ubifs_fill_super()
2194 mutex_unlock(&c->umount_mutex); in ubifs_fill_super()
2198 ubifs_umount(c); in ubifs_fill_super()
2200 mutex_unlock(&c->umount_mutex); in ubifs_fill_super()
2202 ubi_close_volume(c->ubi); in ubifs_fill_super()
2210 struct ubifs_info *c = sb->s_fs_info; in sb_test() local
2212 return c->vi.cdev == c1->vi.cdev; in sb_test()
2225 struct ubifs_info *c; in ubifs_mount() local
2244 c = alloc_ubifs_info(ubi); in ubifs_mount()
2245 if (!c) { in ubifs_mount()
2250 dbg_gen("opened ubi%d_%d", c->vi.ubi_num, c->vi.vol_id); in ubifs_mount()
2252 sb = sget(fs_type, sb_test, sb_set, flags, c); in ubifs_mount()
2255 kfree(c); in ubifs_mount()
2261 kfree(c); in ubifs_mount()
2275 ubifs_msg(c, "full atime support is enabled."); in ubifs_mount()
2294 struct ubifs_info *c = s->s_fs_info; in kill_ubifs_super() local
2296 kfree(c); in kill_ubifs_super()