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Message-ID: <20171227102600.vruihaqugwxa25sp@node.shutemov.name>
Date:   Wed, 27 Dec 2017 13:26:00 +0300
From:   "Kirill A. Shutemov" <kirill@...temov.name>
To:     Matthew Wilcox <willy@...radead.org>
Cc:     linux-kernel@...r.kernel.org,
        Matthew Wilcox <mawilcox@...rosoft.com>,
        Ross Zwisler <ross.zwisler@...ux.intel.com>,
        David Howells <dhowells@...hat.com>,
        Shaohua Li <shli@...nel.org>, Jens Axboe <axboe@...nel.dk>,
        Rehas Sachdeva <aquannie@...il.com>,
        Marc Zyngier <marc.zyngier@....com>, linux-mm@...ck.org,
        linux-fsdevel@...r.kernel.org,
        linux-f2fs-devel@...ts.sourceforge.net,
        linux-nilfs@...r.kernel.org, linux-btrfs@...r.kernel.org,
        linux-xfs@...r.kernel.org, linux-usb@...r.kernel.org,
        linux-raid@...r.kernel.org
Subject: Re: [PATCH v5 06/78] xarray: Change definition of sibling entries

On Tue, Dec 26, 2017 at 07:13:26PM -0800, Matthew Wilcox wrote:
> On Tue, Dec 26, 2017 at 08:21:53PM +0300, Kirill A. Shutemov wrote:
> > > +/**
> > > + * xa_is_internal() - Is the entry an internal entry?
> > > + * @entry: Entry retrieved from the XArray
> > > + *
> > > + * Return: %true if the entry is an internal entry.
> > > + */
> > 
> > What does it mean "internal entry"? Is it just a term for non-value and
> > non-data pointer entry? Do we allow anybody besides xarray implementation to
> > use internal entires?
> > 
> > Do we have it documented?
> 
> We do!  include/linux/radix-tree.h has it documented right now:

Looks good. Thanks.

-- 
 Kirill A. Shutemov

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