linux-kernel - Re: [patch] mm: shmem: use new radix tree iterator

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Message-ID: <20130205182301.GD993@cmpxchg.org>
Date:	Tue, 5 Feb 2013 13:23:01 -0500
From:	Johannes Weiner <hannes@...xchg.org>
To:	Konstantin Khlebnikov <khlebnikov@...nvz.org>
Cc:	Andrew Morton <akpm@...ux-foundation.org>,
	Hugh Dickins <hughd@...gle.com>, linux-mm@...ck.org,
	linux-kernel@...r.kernel.org
Subject: Re: [patch] mm: shmem: use new radix tree iterator

On Sat, Feb 02, 2013 at 12:25:44PM +0400, Konstantin Khlebnikov wrote:
> Johannes Weiner wrote:
> >In shmem_find_get_pages_and_swap, use the faster radix tree iterator
> >construct from 78c1d78 "radix-tree: introduce bit-optimized iterator".
> >
> >Signed-off-by: Johannes Weiner<hannes@...xchg.org>
> 
> Hmm, ACK. shmem_unuse_inode() also can be redone in this way.
> I did something similar year ago: https://lkml.org/lkml/2012/2/10/388
> As result we can rid of radix_tree_locate_item() and shmem_find_get_pages_and_swap()

I remember your patches and am working on a totally unrelated series
that also gets rid of shmem_find_get_pages_and_swap().  Either way,
this thing's going down, so just I didn't bother with the conversion.
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