Re: [PATCH v4 3/4] fat (exportfs): rebuild directory-inode if fat_dget() fails
From: OGAWA Hirofumi
Date: Sat Oct 13 2012 - 05:28:07 EST
Namjae Jeon <linkinjeon@xxxxxxxxx> writes:
> + if (!fat_get_dotdot_entry(child_dir->d_inode, &dotdot_bh, &de)) {
> + parent_logstart = fat_get_start(sbi, de);
> parent_inode = fat_dget(sb, parent_logstart);
> + if (parent_inode || sbi->options.nfs != FAT_NFS_NOSTALE_RO)
> + goto out;
> + if (!parent_logstart)
> + /*logstart of dotdot entry is zero if
> + * if the directory's parent is root
> + */
> + parent_inode = sb->s_root->d_inode;
get_parent() should not be called for root dir, right?
> + blknr = fat_clus_to_blknr(sbi, parent_logstart);
> + parent_bh = sb_bread(sb, blknr);
> + if (!parent_bh) {
> + fat_msg(sb, KERN_ERR,
> + "NFS:unable to read cluster of parent directory");
> + goto out;
> + }
> + de = (struct msdos_dir_entry *) parent_bh->b_data;
> + clus_to_match = fat_get_start(sbi, &de[0]);
> + search_clus = fat_get_start(sbi, &de[1]);
> + if (!search_clus)
> + search_clus = sbi->root_cluster;
> + brelse(parent_bh);
> + do {
> + parent_inode = fat_traverse_cluster(sb,
> + search_clus, clus_to_match);
> + if (IS_ERR(parent_inode) || parent_inode)
> + break;
> + search_clus = fat_read_next_clus(sb,
> + search_clus);
> + if (search_clus < 0)
> + break;
> + } while (search_clus != FAT_ENT_EOF);
> + }
Please make this part as own function at least. And this is doing same
thing with readdir, so we will have to clean this up as I said before.
--
OGAWA Hirofumi <hirofumi@xxxxxxxxxxxxxxxxxx>
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