On Fri, May 04, 2018 at 01:54:14PM +1000, NeilBrown wrote:
> This function has a somewhat confused behavior that is not properly
> described by the documentation.
> Sometimes is returns the previous object, sometimes it returns the
> next one.
> Sometimes it changes the iterator, sometimes it doesn't.
> 
> This function is not currently used and is not worth keeping, so
> remove it.
> 
> Signed-off-by: NeilBrown <ne...@suse.com>

I don't have a problem with this.  But it would be good to hear
from Tom Herbert who added this.
-- 
Email: Herbert Xu <herb...@gondor.apana.org.au>
Home Page: http://gondor.apana.org.au/~herbert/
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