48 static struct inode *befs_alloc_inode(struct super_block *sb);
52 static int befs_utf2nls(struct super_block *sb, const char *in, int in_len,
54 static int befs_nls2utf(struct super_block *sb, const char *in, int in_len,
61 static struct dentry *befs_fh_to_dentry(struct super_block *sb,
63 static struct dentry *befs_fh_to_parent(struct super_block *sb,
135 	struct super_block *sb = inode->i_sb;  in befs_get_block()  local
141 	befs_debug(sb, "---> befs_get_block() for inode %lu, block %ld",  in befs_get_block()
144 		befs_error(sb, "befs_get_block() was asked to write to "  in befs_get_block()
150 	res = befs_fblock2brun(sb, ds, block, &run);  in befs_get_block()
152 		befs_error(sb,  in befs_get_block()
159 	disk_off = (ulong) iaddr2blockno(sb, &run);  in befs_get_block()
163 	befs_debug(sb, "<--- %s for inode %lu, block %ld, disk address %lu",  in befs_get_block()
174 	struct super_block *sb = dir->i_sb;  in befs_lookup()  local
182 	befs_debug(sb, "---> %s name %pd inode %ld", __func__,  in befs_lookup()
186 	if (BEFS_SB(sb)->nls) {  in befs_lookup()
188 		    befs_nls2utf(sb, name, strlen(name), &utfname, &utfnamelen);  in befs_lookup()
190 			befs_debug(sb, "<--- %s ERROR", __func__);  in befs_lookup()
193 		ret = befs_btree_find(sb, ds, utfname, &offset);  in befs_lookup()
197 		ret = befs_btree_find(sb, ds, name, &offset);  in befs_lookup()
201 		befs_debug(sb, "<--- %s %pd not found", __func__, dentry);  in befs_lookup()
204 		befs_error(sb, "<--- %s Error", __func__);  in befs_lookup()
209 	befs_debug(sb, "<--- %s", __func__);  in befs_lookup()
218 	struct super_block *sb = inode->i_sb;  in befs_readdir()  local
225 	befs_debug(sb, "---> %s name %pD, inode %ld, ctx->pos %lld",  in befs_readdir()
229 		result = befs_btree_read(sb, ds, ctx->pos, BEFS_NAME_LEN + 1,  in befs_readdir()
233 			befs_debug(sb, "<--- %s ERROR", __func__);  in befs_readdir()
234 			befs_error(sb, "IO error reading %pD (inode %lu)",  in befs_readdir()
239 			befs_debug(sb, "<--- %s END", __func__);  in befs_readdir()
243 			befs_debug(sb, "<--- %s Empty directory", __func__);  in befs_readdir()
248 		if (BEFS_SB(sb)->nls) {  in befs_readdir()
253 			    befs_utf2nls(sb, keybuf, keysize, &nlsname,  in befs_readdir()
256 				befs_debug(sb, "<--- %s ERROR", __func__);  in befs_readdir()
275 befs_alloc_inode(struct super_block *sb)  in befs_alloc_inode()  argument
279 	bi = alloc_inode_sb(sb, befs_inode_cachep, GFP_KERNEL);  in befs_alloc_inode()
297 static struct inode *befs_iget(struct super_block *sb, unsigned long ino)  in befs_iget()  argument
301 	struct befs_sb_info *befs_sb = BEFS_SB(sb);  in befs_iget()
305 	befs_debug(sb, "---> %s inode = %lu", __func__, ino);  in befs_iget()
307 	inode = iget_locked(sb, ino);  in befs_iget()
316 	befs_ino->i_inode_num = blockno2iaddr(sb, inode->i_ino);  in befs_iget()
318 	befs_debug(sb, "  real inode number [%u, %hu, %hu]",  in befs_iget()
322 	bh = sb_bread(sb, inode->i_ino);  in befs_iget()
324 		befs_error(sb, "unable to read inode block - "  in befs_iget()
331 	befs_dump_inode(sb, raw_inode);  in befs_iget()
333 	if (befs_check_inode(sb, raw_inode, inode->i_ino) != BEFS_OK) {  in befs_iget()
334 		befs_error(sb, "Bad inode: %lu", inode->i_ino);  in befs_iget()
338 	inode->i_mode = (umode_t) fs32_to_cpu(sb, raw_inode->mode);  in befs_iget()
347 		make_kuid(&init_user_ns, fs32_to_cpu(sb, raw_inode->uid));  in befs_iget()
350 		make_kgid(&init_user_ns, fs32_to_cpu(sb, raw_inode->gid));  in befs_iget()
364 	    fs64_to_cpu(sb, raw_inode->last_modified_time) >> 16;  in befs_iget()
369 	befs_ino->i_inode_num = fsrun_to_cpu(sb, raw_inode->inode_num);  in befs_iget()
370 	befs_ino->i_parent = fsrun_to_cpu(sb, raw_inode->parent);  in befs_iget()
371 	befs_ino->i_attribute = fsrun_to_cpu(sb, raw_inode->attributes);  in befs_iget()
372 	befs_ino->i_flags = fs32_to_cpu(sb, raw_inode->flags);  in befs_iget()
383 		    fsds_to_cpu(sb, &raw_inode->data.datastream);  in befs_iget()
385 		num_blks = befs_count_blocks(sb, &befs_ino->i_data.ds);  in befs_iget()
408 		befs_error(sb, "Inode %lu is not a regular file, "  in befs_iget()
415 	befs_debug(sb, "<--- %s", __func__);  in befs_iget()
424 	befs_debug(sb, "<--- %s - Bad inode", __func__);  in befs_iget()
473 	struct super_block *sb = inode->i_sb;  in befs_symlink_read_folio()  local
480 		befs_error(sb, "Long symlink with illegal length");  in befs_symlink_read_folio()
483 	befs_debug(sb, "Follow long symlink");  in befs_symlink_read_folio()
485 	if (befs_read_lsymlink(sb, data, link, len) != len) {  in befs_symlink_read_folio()
486 		befs_error(sb, "Failed to read entire long symlink");  in befs_symlink_read_folio()
505 befs_utf2nls(struct super_block *sb, const char *in,  in befs_utf2nls()  argument
508 	struct nls_table *nls = BEFS_SB(sb)->nls;  in befs_utf2nls()
519 	befs_debug(sb, "---> %s", __func__);  in befs_utf2nls()
522 		befs_error(sb, "%s called with no NLS table loaded", __func__);  in befs_utf2nls()
547 	befs_debug(sb, "<--- %s", __func__);  in befs_utf2nls()
552 	befs_error(sb, "Name using character set %s contains a character that "  in befs_utf2nls()
554 	befs_debug(sb, "<--- %s", __func__);  in befs_utf2nls()
582 befs_nls2utf(struct super_block *sb, const char *in,  in befs_nls2utf()  argument
585 	struct nls_table *nls = BEFS_SB(sb)->nls;  in befs_nls2utf()
597 	befs_debug(sb, "---> %s\n", __func__);  in befs_nls2utf()
600 		befs_error(sb, "%s called with no NLS table loaded.",  in befs_nls2utf()
627 	befs_debug(sb, "<--- %s", __func__);  in befs_nls2utf()
632 	befs_error(sb, "Name using character set %s contains a character that "  in befs_nls2utf()
634 	befs_debug(sb, "<--- %s", __func__);  in befs_nls2utf()
639 static struct inode *befs_nfs_get_inode(struct super_block *sb, uint64_t ino,  in befs_nfs_get_inode()  argument
643 	return befs_iget(sb, ino);  in befs_nfs_get_inode()
649 static struct dentry *befs_fh_to_dentry(struct super_block *sb,  in befs_fh_to_dentry()  argument
652 	return generic_fh_to_dentry(sb, fid, fh_len, fh_type,  in befs_fh_to_dentry()
659 static struct dentry *befs_fh_to_parent(struct super_block *sb,  in befs_fh_to_parent()  argument
662 	return generic_fh_to_parent(sb, fid, fh_len, fh_type,  in befs_fh_to_parent()
792 befs_put_super(struct super_block *sb)  in befs_put_super()  argument
794 	kfree(BEFS_SB(sb)->mount_opts.iocharset);  in befs_put_super()
795 	BEFS_SB(sb)->mount_opts.iocharset = NULL;  in befs_put_super()
796 	unload_nls(BEFS_SB(sb)->nls);  in befs_put_super()
797 	kfree(sb->s_fs_info);  in befs_put_super()
798 	sb->s_fs_info = NULL;  in befs_put_super()
808 befs_fill_super(struct super_block *sb, void *data, int silent)  in befs_fill_super()  argument
819 	sb->s_fs_info = kzalloc(sizeof(*befs_sb), GFP_KERNEL);  in befs_fill_super()
820 	if (sb->s_fs_info == NULL)  in befs_fill_super()
823 	befs_sb = BEFS_SB(sb);  in befs_fill_super()
827 			befs_error(sb, "cannot parse mount options");  in befs_fill_super()
831 	befs_debug(sb, "---> %s", __func__);  in befs_fill_super()
833 	if (!sb_rdonly(sb)) {  in befs_fill_super()
834 		befs_warning(sb,  in befs_fill_super()
836 		sb->s_flags |= SB_RDONLY;  in befs_fill_super()
847 	blocksize = sb_min_blocksize(sb, 1024);  in befs_fill_super()
850 			befs_error(sb, "unable to set blocksize");  in befs_fill_super()
854 	bh = sb_bread(sb, sb_block);  in befs_fill_super()
857 			befs_error(sb, "unable to read superblock");  in befs_fill_super()
865 		befs_debug(sb, "Using PPC superblock location");  in befs_fill_super()
867 		befs_debug(sb, "Using x86 superblock location");  in befs_fill_super()
872 	if ((befs_load_sb(sb, disk_sb) != BEFS_OK) ||  in befs_fill_super()
873 	    (befs_check_sb(sb) != BEFS_OK))  in befs_fill_super()
876 	befs_dump_super_block(sb, disk_sb);  in befs_fill_super()
882 			befs_error(sb, "blocks count: %llu is larger than the host can use",  in befs_fill_super()
891 	sb->s_magic = BEFS_SUPER_MAGIC;  in befs_fill_super()
893 	sb_set_blocksize(sb, (ulong) befs_sb->block_size);  in befs_fill_super()
894 	sb->s_op = &befs_sops;  in befs_fill_super()
895 	sb->s_export_op = &befs_export_operations;  in befs_fill_super()
896 	sb->s_time_min = 0;  in befs_fill_super()
897 	sb->s_time_max = 0xffffffffffffll;  in befs_fill_super()
898 	root = befs_iget(sb, iaddr2blockno(sb, &(befs_sb->root_dir)));  in befs_fill_super()
903 	sb->s_root = d_make_root(root);  in befs_fill_super()
904 	if (!sb->s_root) {  in befs_fill_super()
906 			befs_error(sb, "get root inode failed");  in befs_fill_super()
912 		befs_debug(sb, "Loading nls: %s",  in befs_fill_super()
916 			befs_warning(sb, "Cannot load nls %s"  in befs_fill_super()
923 		befs_debug(sb, "Loading default nls");  in befs_fill_super()
934 	kfree(sb->s_fs_info);  in befs_fill_super()
935 	sb->s_fs_info = NULL;  in befs_fill_super()
942 befs_remount(struct super_block *sb, int *flags, char *data)  in befs_remount()  argument
944 	sync_filesystem(sb);  in befs_remount()
953 	struct super_block *sb = dentry->d_sb;  in befs_statfs()  local
954 	u64 id = huge_encode_dev(sb->s_bdev->bd_dev);  in befs_statfs()
956 	befs_debug(sb, "---> %s", __func__);  in befs_statfs()
959 	buf->f_bsize = sb->s_blocksize;  in befs_statfs()
960 	buf->f_blocks = BEFS_SB(sb)->num_blocks;  in befs_statfs()
961 	buf->f_bfree = BEFS_SB(sb)->num_blocks - BEFS_SB(sb)->used_blocks;  in befs_statfs()
968 	befs_debug(sb, "<--- %s", __func__);  in befs_statfs()