42 static struct inode *befs_alloc_inode(struct super_block *sb);
47 static int befs_utf2nls(struct super_block *sb, const char *in, int in_len,
49 static int befs_nls2utf(struct super_block *sb, const char *in, int in_len,
128 	struct super_block *sb = inode->i_sb;  in befs_get_block()  local
134 	befs_debug(sb, "---> befs_get_block() for inode %lu, block %ld",  in befs_get_block()
137 		befs_error(sb, "befs_get_block() was asked to write to "  in befs_get_block()
143 	res = befs_fblock2brun(sb, ds, block, &run);  in befs_get_block()
145 		befs_error(sb,  in befs_get_block()
152 	disk_off = (ulong) iaddr2blockno(sb, &run);  in befs_get_block()
156 	befs_debug(sb, "<--- %s for inode %lu, block %ld, disk address %lu",  in befs_get_block()
167 	struct super_block *sb = dir->i_sb;  in befs_lookup()  local
175 	befs_debug(sb, "---> %s name %pd inode %ld", __func__,  in befs_lookup()
179 	if (BEFS_SB(sb)->nls) {  in befs_lookup()
181 		    befs_nls2utf(sb, name, strlen(name), &utfname, &utfnamelen);  in befs_lookup()
183 			befs_debug(sb, "<--- %s ERROR", __func__);  in befs_lookup()
186 		ret = befs_btree_find(sb, ds, utfname, &offset);  in befs_lookup()
190 		ret = befs_btree_find(sb, ds, dentry->d_name.name, &offset);  in befs_lookup()
194 		befs_debug(sb, "<--- %s %pd not found", __func__, dentry);  in befs_lookup()
198 		befs_warning(sb, "<--- %s Error", __func__);  in befs_lookup()
208 	befs_debug(sb, "<--- %s", __func__);  in befs_lookup()
217 	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()
250 	if (BEFS_SB(sb)->nls) {  in befs_readdir()
254 		    befs_utf2nls(sb, keybuf, keysize, &nlsname, &nlsnamelen);  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
303 static struct inode *befs_iget(struct super_block *sb, unsigned long ino)  in befs_iget()  argument
307 	struct befs_sb_info *befs_sb = BEFS_SB(sb);  in befs_iget()
312 	befs_debug(sb, "---> %s inode = %lu", __func__, ino);  in befs_iget()
314 	inode = iget_locked(sb, ino);  in befs_iget()
323 	befs_ino->i_inode_num = blockno2iaddr(sb, inode->i_ino);  in befs_iget()
325 	befs_debug(sb, "  real inode number [%u, %hu, %hu]",  in befs_iget()
329 	bh = befs_bread(sb, inode->i_ino);  in befs_iget()
331 		befs_error(sb, "unable to read inode block - "  in befs_iget()
338 	befs_dump_inode(sb, raw_inode);  in befs_iget()
340 	if (befs_check_inode(sb, raw_inode, inode->i_ino) != BEFS_OK) {  in befs_iget()
341 		befs_error(sb, "Bad inode: %lu", inode->i_ino);  in befs_iget()
345 	inode->i_mode = (umode_t) fs32_to_cpu(sb, raw_inode->mode);  in befs_iget()
354 		make_kuid(&init_user_ns, fs32_to_cpu(sb, raw_inode->uid));  in befs_iget()
357 		make_kgid(&init_user_ns, fs32_to_cpu(sb, raw_inode->gid));  in befs_iget()
371 	    fs64_to_cpu(sb, raw_inode->last_modified_time) >> 16;  in befs_iget()
376 	befs_ino->i_inode_num = fsrun_to_cpu(sb, raw_inode->inode_num);  in befs_iget()
377 	befs_ino->i_parent = fsrun_to_cpu(sb, raw_inode->parent);  in befs_iget()
378 	befs_ino->i_attribute = fsrun_to_cpu(sb, raw_inode->attributes);  in befs_iget()
379 	befs_ino->i_flags = fs32_to_cpu(sb, raw_inode->flags);  in befs_iget()
390 		    fsds_to_cpu(sb, &raw_inode->data.datastream);  in befs_iget()
392 		num_blks = befs_count_blocks(sb, &befs_ino->i_data.ds);  in befs_iget()
411 		befs_error(sb, "Inode %lu is not a regular file, "  in befs_iget()
418 	befs_debug(sb, "<--- %s", __func__);  in befs_iget()
427 	befs_debug(sb, "<--- %s - Bad inode", __func__);  in befs_iget()
473 	struct super_block *sb = dentry->d_sb;  in befs_follow_link()  local
480 		befs_error(sb, "Long symlink with illegal length");  in befs_follow_link()
483 		befs_debug(sb, "Follow long symlink");  in befs_follow_link()
488 		} else if (befs_read_lsymlink(sb, data, link, len) != len) {  in befs_follow_link()
490 			befs_error(sb, "Failed to read entire long symlink");  in befs_follow_link()
519 befs_utf2nls(struct super_block *sb, const char *in,  in befs_utf2nls()  argument
522 	struct nls_table *nls = BEFS_SB(sb)->nls;  in befs_utf2nls()
533 	befs_debug(sb, "---> %s", __func__);  in befs_utf2nls()
536 		befs_error(sb, "%s called with no NLS table loaded", __func__);  in befs_utf2nls()
542 		befs_error(sb, "%s cannot allocate memory", __func__);  in befs_utf2nls()
564 	befs_debug(sb, "<--- %s", __func__);  in befs_utf2nls()
569 	befs_error(sb, "Name using character set %s contains a character that "  in befs_utf2nls()
571 	befs_debug(sb, "<--- %s", __func__);  in befs_utf2nls()
599 befs_nls2utf(struct super_block *sb, const char *in,  in befs_nls2utf()  argument
602 	struct nls_table *nls = BEFS_SB(sb)->nls;  in befs_nls2utf()
612 	befs_debug(sb, "---> %s\n", __func__);  in befs_nls2utf()
615 		befs_error(sb, "%s called with no NLS table loaded.",  in befs_nls2utf()
622 		befs_error(sb, "%s cannot allocate memory", __func__);  in befs_nls2utf()
643 	befs_debug(sb, "<--- %s", __func__);  in befs_nls2utf()
648 	befs_error(sb, "Name using charecter set %s contains a charecter that "  in befs_nls2utf()
650 	befs_debug(sb, "<--- %s", __func__);  in befs_nls2utf()
753 befs_put_super(struct super_block *sb)  in befs_put_super()  argument
755 	kfree(BEFS_SB(sb)->mount_opts.iocharset);  in befs_put_super()
756 	BEFS_SB(sb)->mount_opts.iocharset = NULL;  in befs_put_super()
757 	unload_nls(BEFS_SB(sb)->nls);  in befs_put_super()
758 	kfree(sb->s_fs_info);  in befs_put_super()
759 	sb->s_fs_info = NULL;  in befs_put_super()
769 befs_fill_super(struct super_block *sb, void *data, int silent)  in befs_fill_super()  argument
779 	save_mount_options(sb, data);  in befs_fill_super()
781 	sb->s_fs_info = kzalloc(sizeof(*befs_sb), GFP_KERNEL);  in befs_fill_super()
782 	if (sb->s_fs_info == NULL) {  in befs_fill_super()
784 		       "portion of superblock. Bailing.\n", sb->s_id);  in befs_fill_super()
787 	befs_sb = BEFS_SB(sb);  in befs_fill_super()
790 		befs_error(sb, "cannot parse mount options");  in befs_fill_super()
794 	befs_debug(sb, "---> %s", __func__);  in befs_fill_super()
796 	if (!(sb->s_flags & MS_RDONLY)) {  in befs_fill_super()
797 		befs_warning(sb,  in befs_fill_super()
799 		sb->s_flags |= MS_RDONLY;  in befs_fill_super()
811 	sb_min_blocksize(sb, 1024);  in befs_fill_super()
813 	if (!(bh = sb_bread(sb, sb_block))) {  in befs_fill_super()
814 		befs_error(sb, "unable to read superblock");  in befs_fill_super()
822 		befs_debug(sb, "Using PPC superblock location");  in befs_fill_super()
824 		befs_debug(sb, "Using x86 superblock location");  in befs_fill_super()
829 	if ((befs_load_sb(sb, disk_sb) != BEFS_OK) ||  in befs_fill_super()
830 	    (befs_check_sb(sb) != BEFS_OK))  in befs_fill_super()
833 	befs_dump_super_block(sb, disk_sb);  in befs_fill_super()
838 		befs_error(sb, "blocks count: %llu "  in befs_fill_super()
848 	sb->s_magic = BEFS_SUPER_MAGIC;  in befs_fill_super()
850 	sb_set_blocksize(sb, (ulong) befs_sb->block_size);  in befs_fill_super()
851 	sb->s_op = &befs_sops;  in befs_fill_super()
852 	root = befs_iget(sb, iaddr2blockno(sb, &(befs_sb->root_dir)));  in befs_fill_super()
857 	sb->s_root = d_make_root(root);  in befs_fill_super()
858 	if (!sb->s_root) {  in befs_fill_super()
859 		befs_error(sb, "get root inode failed");  in befs_fill_super()
865 		befs_debug(sb, "Loading nls: %s",  in befs_fill_super()
869 			befs_warning(sb, "Cannot load nls %s"  in befs_fill_super()
876 		befs_debug(sb, "Loading default nls");  in befs_fill_super()
887 	kfree(sb->s_fs_info);  in befs_fill_super()
890 	sb->s_fs_info = NULL;  in befs_fill_super()
895 befs_remount(struct super_block *sb, int *flags, char *data)  in befs_remount()  argument
897 	sync_filesystem(sb);  in befs_remount()
906 	struct super_block *sb = dentry->d_sb;  in befs_statfs()  local
907 	u64 id = huge_encode_dev(sb->s_bdev->bd_dev);  in befs_statfs()
909 	befs_debug(sb, "---> %s", __func__);  in befs_statfs()
912 	buf->f_bsize = sb->s_blocksize;  in befs_statfs()
913 	buf->f_blocks = BEFS_SB(sb)->num_blocks;  in befs_statfs()
914 	buf->f_bfree = BEFS_SB(sb)->num_blocks - BEFS_SB(sb)->used_blocks;  in befs_statfs()
922 	befs_debug(sb, "<--- %s", __func__);  in befs_statfs()