[PATCH, RFC] xfs: remove i_iolock and use i_rwsem in the VFS inode instead

[Christoph Hellwig]

On Fri, Aug 19, 2016 at 03:27:36PM +0200, Peter Zijlstra wrote:
> Hurm, if you're going to directly use that maybe we should pick a better
> name ;-)

Fine with that.

> Also, be sure to check the debug_locks variable, if that's cleared the
> result of _lockdep_is_held() isn't reliable -- we stop tracking lock
> state when there's an error.

I already do.  But I'm wondering if we can't simply move the 
debug_locks check into lockdep_is_held?  It's already used directly
in a few places, and that would also solve the whole naming issue.