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Date:	Sun, 18 Apr 2010 20:27:19 +0100
From:	Nix <>
To:	Trond Myklebust <>
Subject: Re: 2.6.34rc4 NFS writeback regression (bisected): client often fails to delete things it just created

On 18 Apr 2010, Trond Myklebust verbalised:

> On Sat, 2010-04-17 at 20:43 +0100, Nix wrote: 
>> I suspect that unlink()ing a not otherwise open file for which writeback
>> is still underway is causing the files to be sillyrenamed because
>> writeback is holding them open. If writeback is the only user, they
>> should surely not be held open: nobody cares what their contents are,
>> and a lot of code depends on rm -r of directories containing recently-
>> written-but-still-closed files succeeding.
> Did you test with commit b80c3cb628f0ebc241b02e38dd028969fb8026a2 (NFS:
> Ensure that writeback_single_inode() calls write_inode() when syncing)?
> That fixed the above problem on my setup.

tip-of-tree includes that commit, and it's still happening for me there.
(Just verified again.)

(The exported filesystem is coming from a box running 2.6.33 atop ext4,
in case it matters.)
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