75 	struct ubifs_sb_node *sup;  in create_default_filesystem()  local
159 	sup = kzalloc(tmp, GFP_KERNEL);  in create_default_filesystem()
160 	if (!sup)  in create_default_filesystem()
167 	sup->ch.node_type  = UBIFS_SB_NODE;  in create_default_filesystem()
168 	sup->key_hash      = UBIFS_KEY_HASH_R5;  in create_default_filesystem()
169 	sup->flags         = cpu_to_le32(sup_flags);  in create_default_filesystem()
170 	sup->min_io_size   = cpu_to_le32(c->min_io_size);  in create_default_filesystem()
171 	sup->leb_size      = cpu_to_le32(c->leb_size);  in create_default_filesystem()
172 	sup->leb_cnt       = cpu_to_le32(c->leb_cnt);  in create_default_filesystem()
173 	sup->max_leb_cnt   = cpu_to_le32(c->max_leb_cnt);  in create_default_filesystem()
174 	sup->max_bud_bytes = cpu_to_le64(tmp64);  in create_default_filesystem()
175 	sup->log_lebs      = cpu_to_le32(log_lebs);  in create_default_filesystem()
176 	sup->lpt_lebs      = cpu_to_le32(lpt_lebs);  in create_default_filesystem()
177 	sup->orph_lebs     = cpu_to_le32(orph_lebs);  in create_default_filesystem()
178 	sup->jhead_cnt     = cpu_to_le32(DEFAULT_JHEADS_CNT);  in create_default_filesystem()
179 	sup->fanout        = cpu_to_le32(DEFAULT_FANOUT);  in create_default_filesystem()
180 	sup->lsave_cnt     = cpu_to_le32(c->lsave_cnt);  in create_default_filesystem()
181 	sup->fmt_version   = cpu_to_le32(UBIFS_FORMAT_VERSION);  in create_default_filesystem()
182 	sup->time_gran     = cpu_to_le32(DEFAULT_TIME_GRAN);  in create_default_filesystem()
184 		sup->default_compr = cpu_to_le16(c->mount_opts.compr_type);  in create_default_filesystem()
186 		sup->default_compr = cpu_to_le16(UBIFS_COMPR_LZO);  in create_default_filesystem()
188 	generate_random_uuid(sup->uuid);  in create_default_filesystem()
194 	sup->rp_size = cpu_to_le64(tmp64);  in create_default_filesystem()
195 	sup->ro_compat_version = cpu_to_le32(UBIFS_RO_COMPAT_VERSION);  in create_default_filesystem()
197 	err = ubifs_write_node(c, sup, UBIFS_SB_NODE_SZ, 0, 0);  in create_default_filesystem()
198 	kfree(sup);  in create_default_filesystem()
352 static int validate_sb(struct ubifs_info *c, struct ubifs_sb_node *sup)  in validate_sb()  argument
362 	if (sup->key_fmt != UBIFS_SIMPLE_KEY_FMT) {  in validate_sb()
367 	if (le32_to_cpu(sup->min_io_size) != c->min_io_size) {  in validate_sb()
369 			  le32_to_cpu(sup->min_io_size), c->min_io_size);  in validate_sb()
373 	if (le32_to_cpu(sup->leb_size) != c->leb_size) {  in validate_sb()
375 			  le32_to_cpu(sup->leb_size), c->leb_size);  in validate_sb()
462 	if (le32_to_cpu(sup->time_gran) > 1000000000 ||  in validate_sb()
463 	    le32_to_cpu(sup->time_gran) < 1) {  in validate_sb()
472 	ubifs_dump_node(c, sup);  in validate_sb()
486 	struct ubifs_sb_node *sup;  in ubifs_read_sb_node()  local
489 	sup = kmalloc(ALIGN(UBIFS_SB_NODE_SZ, c->min_io_size), GFP_NOFS);  in ubifs_read_sb_node()
490 	if (!sup)  in ubifs_read_sb_node()
493 	err = ubifs_read_node(c, sup, UBIFS_SB_NODE, UBIFS_SB_NODE_SZ,  in ubifs_read_sb_node()
496 		kfree(sup);  in ubifs_read_sb_node()
500 	return sup;  in ubifs_read_sb_node()
510 int ubifs_write_sb_node(struct ubifs_info *c, struct ubifs_sb_node *sup)  in ubifs_write_sb_node()  argument
514 	ubifs_prepare_node(c, sup, UBIFS_SB_NODE_SZ, 1);  in ubifs_write_sb_node()
515 	return ubifs_leb_change(c, UBIFS_SB_LNUM, sup, len);  in ubifs_write_sb_node()
529 	struct ubifs_sb_node *sup;  in ubifs_read_superblock()  local
537 	sup = ubifs_read_sb_node(c);  in ubifs_read_superblock()
538 	if (IS_ERR(sup))  in ubifs_read_superblock()
539 		return PTR_ERR(sup);  in ubifs_read_superblock()
541 	c->fmt_version = le32_to_cpu(sup->fmt_version);  in ubifs_read_superblock()
542 	c->ro_compat_version = le32_to_cpu(sup->ro_compat_version);  in ubifs_read_superblock()
579 	switch (sup->key_hash) {  in ubifs_read_superblock()
591 	c->key_fmt = sup->key_fmt;  in ubifs_read_superblock()
603 	c->leb_cnt       = le32_to_cpu(sup->leb_cnt);  in ubifs_read_superblock()
604 	c->max_leb_cnt   = le32_to_cpu(sup->max_leb_cnt);  in ubifs_read_superblock()
605 	c->max_bud_bytes = le64_to_cpu(sup->max_bud_bytes);  in ubifs_read_superblock()
606 	c->log_lebs      = le32_to_cpu(sup->log_lebs);  in ubifs_read_superblock()
607 	c->lpt_lebs      = le32_to_cpu(sup->lpt_lebs);  in ubifs_read_superblock()
608 	c->orph_lebs     = le32_to_cpu(sup->orph_lebs);  in ubifs_read_superblock()
609 	c->jhead_cnt     = le32_to_cpu(sup->jhead_cnt) + NONDATA_JHEADS_CNT;  in ubifs_read_superblock()
610 	c->fanout        = le32_to_cpu(sup->fanout);  in ubifs_read_superblock()
611 	c->lsave_cnt     = le32_to_cpu(sup->lsave_cnt);  in ubifs_read_superblock()
612 	c->rp_size       = le64_to_cpu(sup->rp_size);  in ubifs_read_superblock()
613 	c->rp_uid        = make_kuid(&init_user_ns, le32_to_cpu(sup->rp_uid));  in ubifs_read_superblock()
614 	c->rp_gid        = make_kgid(&init_user_ns, le32_to_cpu(sup->rp_gid));  in ubifs_read_superblock()
615 	sup_flags        = le32_to_cpu(sup->flags);  in ubifs_read_superblock()
617 		c->default_compr = le16_to_cpu(sup->default_compr);  in ubifs_read_superblock()
619 	c->vfs_sb->s_time_gran = le32_to_cpu(sup->time_gran);  in ubifs_read_superblock()
620 	memcpy(&c->uuid, &sup->uuid, 16);  in ubifs_read_superblock()
634 			sup->leb_cnt = cpu_to_le32(c->leb_cnt);  in ubifs_read_superblock()
635 			err = ubifs_write_sb_node(c, sup);  in ubifs_read_superblock()
652 	err = validate_sb(c, sup);  in ubifs_read_superblock()
654 	kfree(sup);  in ubifs_read_superblock()
783 	struct ubifs_sb_node *sup;  in ubifs_fixup_free_space()  local
794 	sup = ubifs_read_sb_node(c);  in ubifs_fixup_free_space()
795 	if (IS_ERR(sup))  in ubifs_fixup_free_space()
796 		return PTR_ERR(sup);  in ubifs_fixup_free_space()
800 	sup->flags &= cpu_to_le32(~UBIFS_FLG_SPACE_FIXUP);  in ubifs_fixup_free_space()
802 	err = ubifs_write_sb_node(c, sup);  in ubifs_fixup_free_space()
803 	kfree(sup);  in ubifs_fixup_free_space()