err = ext3_init_security(handle,inode, dir); if (err) { DQUOT_FREE_INODE(inode); goto fail2; } 
struct inode *ext3_new_inode(handle_t *handle, struct inode * dir, int mode){	struct super_block *sb;	struct buffer_head *bitmap_bh = NULL;	struct buffer_head *bh2;	int group;	unsigned long ino = 0;	struct inode * inode;	struct ext3_group_desc * gdp = NULL;	struct ext3_super_block * es;	struct ext3_inode_info *ei;	struct ext3_sb_info *sbi;	int err = 0;	struct inode *ret;	int i;	/* Cannot create files in a deleted directory */	if (!dir || !dir->i_nlink)		return ERR_PTR(-EPERM);	sb = dir->i_sb;	inode = new_inode(sb);	if (!inode)		return ERR_PTR(-ENOMEM);	ei = EXT3_I(inode);	sbi = EXT3_SB(sb);	es = sbi->s_es;	if (S_ISDIR(mode)) {		if (test_opt (sb, OLDALLOC))			group = find_group_dir(sb, dir);		else			group = find_group_orlov(sb, dir);	} else 		group = find_group_other(sb, dir);	err = -ENOSPC;	if (group == -1)		goto out;	for (i = 0; i < sbi->s_groups_count; i++) {		err = -EIO;		gdp = ext3_get_group_desc(sb, group, &bh2);		if (!gdp)			goto fail;		brelse(bitmap_bh);		bitmap_bh = read_inode_bitmap(sb, group);		if (!bitmap_bh)			goto fail;		ino = 0;repeat_in_this_group:		ino = ext3_find_next_zero_bit((unsigned long *)				bitmap_bh->b_data, EXT3_INODES_PER_GROUP(sb), ino);		if (ino < EXT3_INODES_PER_GROUP(sb)) {			BUFFER_TRACE(bitmap_bh, "get_write_access");			err = ext3_journal_get_write_access(handle, bitmap_bh);			if (err)				goto fail;			if (!ext3_set_bit_atomic(sb_bgl_lock(sbi, group),						ino, bitmap_bh->b_data)) {				/* we won it */				BUFFER_TRACE(bitmap_bh,					"call ext3_journal_dirty_metadata");				err = ext3_journal_dirty_metadata(handle,								bitmap_bh);				if (err)					goto fail;				goto got;			}			/* we lost it */			journal_release_buffer(handle, bitmap_bh);			if (++ino < EXT3_INODES_PER_GROUP(sb))				goto repeat_in_this_group;		}		/*		 * This case is possible in concurrent environment.  It is very		 * rare.  We cannot repeat the find_group_xxx() call because		 * that will simply return the same blockgroup, because the		 * group descriptor metadata has not yet been updated.		 * So we just go onto the next blockgroup.		 */		if (++group == sbi->s_groups_count)			group = 0;	}	err = -ENOSPC;	goto out;got:	ino += group * EXT3_INODES_PER_GROUP(sb) + 1;	if (ino < EXT3_FIRST_INO(sb) || ino > le32_to_cpu(es->s_inodes_count)) {		ext3_error (sb, "ext3_new_inode",			    "reserved inode or inode > inodes count - "			    "block_group = %d, inode=%lu", group, ino);		err = -EIO;		goto fail;	}	BUFFER_TRACE(bh2, "get_write_access");	err = ext3_journal_get_write_access(handle, bh2);	if (err) goto fail;	spin_lock(sb_bgl_lock(sbi, group));	gdp->bg_free_inodes_count =		cpu_to_le16(le16_to_cpu(gdp->bg_free_inodes_count) - 1);	if (S_ISDIR(mode)) {		gdp->bg_used_dirs_count =			cpu_to_le16(le16_to_cpu(gdp->bg_used_dirs_count) + 1);	}	spin_unlock(sb_bgl_lock(sbi, group));	BUFFER_TRACE(bh2, "call ext3_journal_dirty_metadata");	err = ext3_journal_dirty_metadata(handle, bh2);	if (err) goto fail;	percpu_counter_dec(&sbi->s_freeinodes_counter);	if (S_ISDIR(mode))		percpu_counter_inc(&sbi->s_dirs_counter);	sb->s_dirt = 1;	inode->i_uid = current->fsuid;	if (test_opt (sb, GRPID))		inode->i_gid = dir->i_gid;	else if (dir->i_mode & S_ISGID) {		inode->i_gid = dir->i_gid;		if (S_ISDIR(mode))			mode |= S_ISGID;	} else		inode->i_gid = current->fsgid;	inode->i_mode = mode;	inode->i_ino = ino;	/* This is the optimal IO size (for stat), not the fs block size */	inode->i_blksize = PAGE_SIZE;	inode->i_blocks = 0;	inode->i_mtime = inode->i_atime = inode->i_ctime = CURRENT_TIME_SEC;	memset(ei->i_data, 0, sizeof(ei->i_data));	ei->i_dir_start_lookup = 0;	ei->i_disksize = 0;	ei->i_flags = EXT3_I(dir)->i_flags & ~EXT3_INDEX_FL;	if (S_ISLNK(mode))		ei->i_flags &= ~(EXT3_IMMUTABLE_FL|EXT3_APPEND_FL);	/* dirsync only applies to directories */	if (!S_ISDIR(mode))		ei->i_flags &= ~EXT3_DIRSYNC_FL;#ifdef EXT3_FRAGMENTS	ei->i_faddr = 0;	ei->i_frag_no = 0;	ei->i_frag_size = 0;#endif	ei->i_file_acl = 0;	ei->i_dir_acl = 0;	ei->i_dtime = 0;	ei->i_block_alloc_info = NULL;	ei->i_block_group = group;	ext3_set_inode_flags(inode);	if (IS_DIRSYNC(inode))		handle->h_sync = 1;	insert_inode_hash(inode);	spin_lock(&sbi->s_next_gen_lock);	inode->i_generation = sbi->s_next_generation++;	spin_unlock(&sbi->s_next_gen_lock);	ei->i_state = EXT3_STATE_NEW;	ei->i_extra_isize =		(EXT3_INODE_SIZE(inode->i_sb) > EXT3_GOOD_OLD_INODE_SIZE) ?		sizeof(struct ext3_inode) - EXT3_GOOD_OLD_INODE_SIZE : 0;	ret = inode;	if(DQUOT_ALLOC_INODE(inode)) {		DQUOT_DROP(inode);		err = -EDQUOT;		goto fail2;	}	err = ext3_init_acl(handle, inode, dir);	if (err) {		DQUOT_FREE_INODE(inode);		DQUOT_DROP(inode);		goto fail2;  	}	err = ext3_mark_inode_dirty(handle, inode);	if (err) {		ext3_std_error(sb, err);		DQUOT_FREE_INODE(inode);		DQUOT_DROP(inode);		goto fail2;	}	ext3_debug("allocating inode %lu\n", inode->i_ino);	goto really_out;fail:	ext3_std_error(sb, err);out:	iput(inode);	ret = ERR_PTR(err);really_out:	brelse(bitmap_bh);	return ret;fail2:	inode->i_flags |= S_NOQUOTA;	inode->i_nlink = 0;	iput(inode);	brelse(bitmap_bh);	return ERR_PTR(err);}
4520	/local/tlutelli/issta_data/temp/c/2005_temp/2005/4520/ac50960afa31877493add6d941d8402fa879c452/ialloc.c/clean/fs/ext3/ialloc.c