42 static struct inode *befs_alloc_inode(struct super_block *sb);
46 static int befs_utf2nls(struct super_block *sb, const char *in, int in_len,
48 static int befs_nls2utf(struct super_block *sb, const char *in, int in_len,
122 	struct super_block *sb = inode->i_sb;  in befs_get_block()  local
128 	befs_debug(sb, "---> befs_get_block() for inode %lu, block %ld",  in befs_get_block()
131 		befs_error(sb, "befs_get_block() was asked to write to "  in befs_get_block()
137 	res = befs_fblock2brun(sb, ds, block, &run);  in befs_get_block()
139 		befs_error(sb,  in befs_get_block()
146 	disk_off = (ulong) iaddr2blockno(sb, &run);  in befs_get_block()
150 	befs_debug(sb, "<--- %s for inode %lu, block %ld, disk address %lu",  in befs_get_block()
161 	struct super_block *sb = dir->i_sb;  in befs_lookup()  local
169 	befs_debug(sb, "---> %s name %pd inode %ld", __func__,  in befs_lookup()
173 	if (BEFS_SB(sb)->nls) {  in befs_lookup()
175 		    befs_nls2utf(sb, name, strlen(name), &utfname, &utfnamelen);  in befs_lookup()
177 			befs_debug(sb, "<--- %s ERROR", __func__);  in befs_lookup()
180 		ret = befs_btree_find(sb, ds, utfname, &offset);  in befs_lookup()
184 		ret = befs_btree_find(sb, ds, dentry->d_name.name, &offset);  in befs_lookup()
188 		befs_debug(sb, "<--- %s %pd not found", __func__, dentry);  in befs_lookup()
192 		befs_warning(sb, "<--- %s Error", __func__);  in befs_lookup()
202 	befs_debug(sb, "<--- %s", __func__);  in befs_lookup()
211 	struct super_block *sb = inode->i_sb;  in befs_readdir()  local
219 	befs_debug(sb, "---> %s name %pD, inode %ld, ctx->pos %lld",  in befs_readdir()
223 	result = befs_btree_read(sb, ds, ctx->pos, BEFS_NAME_LEN + 1,  in befs_readdir()
227 		befs_debug(sb, "<--- %s ERROR", __func__);  in befs_readdir()
228 		befs_error(sb, "IO error reading %pD (inode %lu)",  in befs_readdir()
233 		befs_debug(sb, "<--- %s END", __func__);  in befs_readdir()
237 		befs_debug(sb, "<--- %s Empty directory", __func__);  in befs_readdir()
244 	if (BEFS_SB(sb)->nls) {  in befs_readdir()
248 		    befs_utf2nls(sb, keybuf, keysize, &nlsname, &nlsnamelen);  in befs_readdir()
250 			befs_debug(sb, "<--- %s ERROR", __func__);  in befs_readdir()
269 befs_alloc_inode(struct super_block *sb)  in befs_alloc_inode()  argument
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()
306 	befs_debug(sb, "---> %s inode = %lu", __func__, ino);  in befs_iget()
308 	inode = iget_locked(sb, ino);  in befs_iget()
317 	befs_ino->i_inode_num = blockno2iaddr(sb, inode->i_ino);  in befs_iget()
319 	befs_debug(sb, "  real inode number [%u, %hu, %hu]",  in befs_iget()
323 	bh = befs_bread(sb, inode->i_ino);  in befs_iget()
325 		befs_error(sb, "unable to read inode block - "  in befs_iget()
332 	befs_dump_inode(sb, raw_inode);  in befs_iget()
334 	if (befs_check_inode(sb, raw_inode, inode->i_ino) != BEFS_OK) {  in befs_iget()
335 		befs_error(sb, "Bad inode: %lu", inode->i_ino);  in befs_iget()
339 	inode->i_mode = (umode_t) fs32_to_cpu(sb, raw_inode->mode);  in befs_iget()
348 		make_kuid(&init_user_ns, fs32_to_cpu(sb, raw_inode->uid));  in befs_iget()
351 		make_kgid(&init_user_ns, fs32_to_cpu(sb, raw_inode->gid));  in befs_iget()
365 	    fs64_to_cpu(sb, raw_inode->last_modified_time) >> 16;  in befs_iget()
370 	befs_ino->i_inode_num = fsrun_to_cpu(sb, raw_inode->inode_num);  in befs_iget()
371 	befs_ino->i_parent = fsrun_to_cpu(sb, raw_inode->parent);  in befs_iget()
372 	befs_ino->i_attribute = fsrun_to_cpu(sb, raw_inode->attributes);  in befs_iget()
373 	befs_ino->i_flags = fs32_to_cpu(sb, raw_inode->flags);  in befs_iget()
384 		    fsds_to_cpu(sb, &raw_inode->data.datastream);  in befs_iget()
386 		num_blks = befs_count_blocks(sb, &befs_ino->i_data.ds);  in befs_iget()
407 		befs_error(sb, "Inode %lu is not a regular file, "  in befs_iget()
414 	befs_debug(sb, "<--- %s", __func__);  in befs_iget()
423 	befs_debug(sb, "<--- %s - Bad inode", __func__);  in befs_iget()
469 	struct super_block *sb = dentry->d_sb;  in befs_follow_link()  local
476 		befs_error(sb, "Long symlink with illegal length");  in befs_follow_link()
479 	befs_debug(sb, "Follow long symlink");  in befs_follow_link()
484 	if (befs_read_lsymlink(sb, data, link, len) != len) {  in befs_follow_link()
486 		befs_error(sb, "Failed to read entire long symlink");  in befs_follow_link()
502 befs_utf2nls(struct super_block *sb, const char *in,  in befs_utf2nls()  argument
505 	struct nls_table *nls = BEFS_SB(sb)->nls;  in befs_utf2nls()
516 	befs_debug(sb, "---> %s", __func__);  in befs_utf2nls()
519 		befs_error(sb, "%s called with no NLS table loaded", __func__);  in befs_utf2nls()
525 		befs_error(sb, "%s cannot allocate memory", __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()
595 	befs_debug(sb, "---> %s\n", __func__);  in befs_nls2utf()
598 		befs_error(sb, "%s called with no NLS table loaded.",  in befs_nls2utf()
605 		befs_error(sb, "%s cannot allocate memory", __func__);  in befs_nls2utf()
626 	befs_debug(sb, "<--- %s", __func__);  in befs_nls2utf()
631 	befs_error(sb, "Name using charecter set %s contains a charecter that "  in befs_nls2utf()
633 	befs_debug(sb, "<--- %s", __func__);  in befs_nls2utf()
736 befs_put_super(struct super_block *sb)  in befs_put_super()  argument
738 	kfree(BEFS_SB(sb)->mount_opts.iocharset);  in befs_put_super()
739 	BEFS_SB(sb)->mount_opts.iocharset = NULL;  in befs_put_super()
740 	unload_nls(BEFS_SB(sb)->nls);  in befs_put_super()
741 	kfree(sb->s_fs_info);  in befs_put_super()
742 	sb->s_fs_info = NULL;  in befs_put_super()
752 befs_fill_super(struct super_block *sb, void *data, int silent)  in befs_fill_super()  argument
762 	save_mount_options(sb, data);  in befs_fill_super()
764 	sb->s_fs_info = kzalloc(sizeof(*befs_sb), GFP_KERNEL);  in befs_fill_super()
765 	if (sb->s_fs_info == NULL) {  in befs_fill_super()
767 		       "portion of superblock. Bailing.\n", sb->s_id);  in befs_fill_super()
770 	befs_sb = BEFS_SB(sb);  in befs_fill_super()
773 		befs_error(sb, "cannot parse mount options");  in befs_fill_super()
777 	befs_debug(sb, "---> %s", __func__);  in befs_fill_super()
779 	if (!(sb->s_flags & MS_RDONLY)) {  in befs_fill_super()
780 		befs_warning(sb,  in befs_fill_super()
782 		sb->s_flags |= MS_RDONLY;  in befs_fill_super()
794 	sb_min_blocksize(sb, 1024);  in befs_fill_super()
796 	if (!(bh = sb_bread(sb, sb_block))) {  in befs_fill_super()
797 		befs_error(sb, "unable to read superblock");  in befs_fill_super()
805 		befs_debug(sb, "Using PPC superblock location");  in befs_fill_super()
807 		befs_debug(sb, "Using x86 superblock location");  in befs_fill_super()
812 	if ((befs_load_sb(sb, disk_sb) != BEFS_OK) ||  in befs_fill_super()
813 	    (befs_check_sb(sb) != BEFS_OK))  in befs_fill_super()
816 	befs_dump_super_block(sb, disk_sb);  in befs_fill_super()
821 		befs_error(sb, "blocks count: %llu "  in befs_fill_super()
831 	sb->s_magic = BEFS_SUPER_MAGIC;  in befs_fill_super()
833 	sb_set_blocksize(sb, (ulong) befs_sb->block_size);  in befs_fill_super()
834 	sb->s_op = &befs_sops;  in befs_fill_super()
835 	root = befs_iget(sb, iaddr2blockno(sb, &(befs_sb->root_dir)));  in befs_fill_super()
840 	sb->s_root = d_make_root(root);  in befs_fill_super()
841 	if (!sb->s_root) {  in befs_fill_super()
842 		befs_error(sb, "get root inode failed");  in befs_fill_super()
848 		befs_debug(sb, "Loading nls: %s",  in befs_fill_super()
852 			befs_warning(sb, "Cannot load nls %s"  in befs_fill_super()
859 		befs_debug(sb, "Loading default nls");  in befs_fill_super()
870 	kfree(sb->s_fs_info);  in befs_fill_super()
873 	sb->s_fs_info = NULL;  in befs_fill_super()
878 befs_remount(struct super_block *sb, int *flags, char *data)  in befs_remount()  argument
880 	sync_filesystem(sb);  in befs_remount()
889 	struct super_block *sb = dentry->d_sb;  in befs_statfs()  local
890 	u64 id = huge_encode_dev(sb->s_bdev->bd_dev);  in befs_statfs()
892 	befs_debug(sb, "---> %s", __func__);  in befs_statfs()
895 	buf->f_bsize = sb->s_blocksize;  in befs_statfs()
896 	buf->f_blocks = BEFS_SB(sb)->num_blocks;  in befs_statfs()
897 	buf->f_bfree = BEFS_SB(sb)->num_blocks - BEFS_SB(sb)->used_blocks;  in befs_statfs()
905 	befs_debug(sb, "<--- %s", __func__);  in befs_statfs()