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Re: XFS_ERROR use - was Re: [PATCH] prevent NULL returns from d_obtain_a

To: Timothy Shimmin <tes@xxxxxxx>
Subject: Re: XFS_ERROR use - was Re: [PATCH] prevent NULL returns from d_obtain_alias
From: Christoph Hellwig <hch@xxxxxxxxxxxxx>
Date: Mon, 20 Oct 2008 05:23:46 -0400
Cc: Christoph Hellwig <hch@xxxxxx>, Miklos Szeredi <miklos@xxxxxxxxxx>, xfs-oss <xfs@xxxxxxxxxxx>
In-reply-to: <48FBD5AB.6090306@sgi.com>
References: <20081015192839.GA867@lst.de> <E1KqWzC-00087u-TG@pomaz-ex.szeredi.hu> <20081016180947.GA26285@lst.de> <48F7D814.2080705@sgi.com> <20081017171000.GC18582@lst.de> <48FBD5AB.6090306@sgi.com>
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User-agent: Mutt/1.5.18 (2008-05-17)
On Mon, Oct 20, 2008 at 11:49:47AM +1100, Timothy Shimmin wrote:
> > I have to revamp that whole
> > function anyway as it's extremly buggy in many ways, especially when
> > used to open directories (can lead to multiple dentries for a single
> > directory - ouch) and then I'll kill the other uses.
> 
> Oh ok.
> 
> In userspace,
> we use it for opening directories on xfsdump via jdm_open in order to
> do bulkstat driven dirent dumping.
> We also use it in xfsrestore - though I am not convinced we should -
> it was initially done for "performance" reasons apparently.

I think the use of the API is fine, the problem is that the current
implemention is buggy.


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