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    SubjectRe: [NFS] [PATCH 000 of 2] knfsd: Don't allow bad file handles to cause extX to go readonly
    On Fri, Jul 28, 2006 at 10:31:20AM +1000, NeilBrown wrote:
    > Currently, and file handle with a bad inode number in it can cause
    > ext2 to go to readonly (as it looks like a corrupted filesystem)
    > and could allow remote access to ext3 special files like the journal.
    >
    > These patches give ext2/3 their own get_dentry method which checks the
    > inode number early before other bits of the code can be freaked out by
    > it.
    >
    > These are revised versions of earlier patches. Rather than exporting
    > export_iget, we open code it and simplify it slightly. This avoids
    > and extra module dependancy.

    This looks much better, agreed. Long-term we should switch ext2/ext2
    to use iget_locked so we can propagate errors in finding the inode much
    better.

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