Re: hugetlb locking bug.

From: Christoph Hellwig
Date: Fri Apr 15 2011 - 16:57:43 EST

On Fri, Apr 15, 2011 at 01:49:04PM -0700, Linus Torvalds wrote:
> And I really thought we annotated it as such with different
> "lockdep_set_class()" cases (ie the whole
> lockdep_set_class(&inode->i_mutex,&type->i_mutex_dir_key);
> for the S_ISDIR case in unlock_new_inode().
> Can somebody more alert than me see why this lockdep issue still
> triggers with hugetlbfs?

Because it doesn't use iget or unlock_new_inode, but rather calls
directly into new_inode(). It and other filesystems not using
unlock_new_inode will need a local copy of that logic.
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