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Re: [PATCH 2/2] remove ancient sys_getdents code paths

To: Christoph Hellwig <hch@xxxxxxxxxxxxx>
Subject: Re: [PATCH 2/2] remove ancient sys_getdents code paths
From: Kyle McMartin <kmcmarti@xxxxxxxxxx>
Date: Tue, 25 Mar 2014 12:08:08 -0400
Cc: Brian Foster <bfoster@xxxxxxxxxx>, xfs@xxxxxxxxxxx
Delivered-to: xfs@xxxxxxxxxxx
In-reply-to: <20140325153422.GA31551@xxxxxxxxxxxxx>
References: <20140324181920.GG23291@xxxxxxxxxxxxxxxxxxxxxxx> <20140325141553.GB18691@xxxxxxxxxxxxxxx> <20140325153422.GA31551@xxxxxxxxxxxxx>
User-agent: Mutt/1.5.21 (2010-09-15)
On Tue, Mar 25, 2014 at 08:34:22AM -0700, Christoph Hellwig wrote:
> On Tue, Mar 25, 2014 at 10:15:55AM -0400, Brian Foster wrote:
> > I wonder if we could clean up the d_name offset checks to check it once
> > and use a flag. Or use a signed type for size_diff and trigger off that.
> > Just a thought, fwiw.
> I'd just leave the code as-is and just remove the ifdef cruft.  If
> anyone is motivated enough to do real work on this area the callers
> should simply be switched to readdir(3) and friends instead of
> bikeshedding the current cruft.  I just don't want to put even more load
> on Kyle how just wants to get xfsdump running on arm64..

Heh, actually, I started doing exactly that last night, after looking at
all the getdents_wrap callers...

That's probably a bit more... error-sensitive patch though, so I'd
prefer if at least 1/2 and/or 2/2 went in separately for debuggability.


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