linux-ext4 - Re: [RFC][PATCH] radix_tree: radix_tree_gang_lookup_tag

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Message-Id: <20110124221916.041ea5d7.akpm@linux-foundation.org>
Date:	Mon, 24 Jan 2011 22:19:16 -0800
From:	Andrew Morton <akpm@...ux-foundation.org>
To:	Toshiyuki Okajima <toshi.okajima@...fujitsu.com>
Cc:	linux-kernel@...r.kernel.org, linux-fsdevel@...r.kernel.org,
	linux-ext4@...r.kernel.org, Jan Kara <jack@....cz>
Subject: Re: [RFC][PATCH] radix_tree: radix_tree_gang_lookup_tag_slot may
 not return forever.

On Tue, 25 Jan 2011 13:53:45 +0900 Toshiyuki Okajima <toshi.okajima@...fujitsu.com> wrote:

> > It should be fairly simple to reproduce this hang with the userspace
> > test harness (http://userweb.kernel.org/~akpm/stuff/rtth.tar.gz) and to
> > then demonstrate that the fix fixes it.
> > 
> > If you have time, could you please do that and then send the rtth
> > updates to me?
> > 
> I add regression2_test for this bug into your testset (rtth.tar.gz).
> This is originated from regression1_test.

Thanks.  I applied your
radix_tree-radix_tree_gang_lookup_tag_slot-may-not-return-forever.patch
to rtth's radix-tree.c (it was needed!) and refreshed
http://userweb.kernel.org/~akpm/stuff/rtth.tar.gz
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