Re: [PATCH 5/9] exofs: dir_inode and directory operations

[Andrew Morton <akpm@linux-foundation.org>]

On Tue, 16 Dec 2008 17:28:57 +0200
Boaz Harrosh <bharrosh@panasas.com> wrote:

> implementation of directory and inode operations.
> 
> * A directory is treated as a file, and essentially contains a list
>   of <file name, inode #> pairs for files that are found in that
>   directory. The object IDs correspond to the files' inode numbers
>   and are allocated using a 64bit incrementing global counter.
> * Each file's control block (AKA on-disk inode) is stored in its
>   object's attributes. This applies to both regular files and other
>   types (directories, device files, symlinks, etc.).
> 
> ...
>
>  fs/exofs/dir.c   |  649 ++++++++++++++++++++++++++++++++++++++++++++++++++++++

yes, this does look rather ext2-like ;)

How long ago was the code cloned from ext2?  iirc there have been a
number of fairly subtle bugs fixed in ext2/dir.c over the past year or
three.  If the code was not quite recently cloned then I'd suggest that
you spend a bit of time looking through the ext2 changelogs, see if
there are any bugfixes which needs to be ported.