netdev - Re: SYSFS "errors"

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Message-ID: <20130219133809.GA4390@arwen.pp.htv.fi>
Date:	Tue, 19 Feb 2013 15:38:09 +0200
From:	Felipe Balbi <balbi@...com>
To:	Borislav Petkov <bp@...en8.de>, Felipe Balbi <balbi@...com>,
	Mauro Carvalho Chehab <mchehab@...hat.com>,
	Greg KH <gregkh@...uxfoundation.org>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Steven Rostedt <rostedt@...dmis.org>,
	Frederic Weisbecker <fweisbec@...il.com>,
	Ingo Molnar <mingo@...hat.com>, <JBottomley@...allels.com>,
	<linux-scsi@...r.kernel.org>, <davem@...emloft.net>,
	<netdev@...r.kernel.org>,
	Doug Thompson <dougthompson@...ssion.com>,
	<linux-edac@...r.kernel.org>, <rjw@...k.pl>,
	<linux-pm@...r.kernel.org>
Subject: Re: SYSFS "errors"

Hi,

On Tue, Feb 19, 2013 at 02:28:54PM +0100, Borislav Petkov wrote:
> On Tue, Feb 19, 2013 at 03:15:00PM +0200, Felipe Balbi wrote:
> > what's the problem with that ?
> 
> Not a problem - simply annoying.
> 
> $ ./test.sh
> cat: /path/to/file/that/doesnt/exist.txt: No such file or directory
> Setting scrubrate to:
> 
> I'm sure someone would ask themselves why all of a sudden the file is
> gone.
> 
> > $ cat /path/to/file/that/doesnt/exist.txt
> > cat: /path/to/file/that/doesnt/exist.txt: No such file or directory
> > 
> > Didn't see any gates to hell opening here...
> 
> And I don't see why we have to debate such a trivial thing when we can
> fix it *properly* without *absolutely* *not* upsetting userspace.

because changing the permission will cause the same issue:

$ cat temporary.txt 
cat: temporary.txt: Permission denied
$ ls -l temporary.txt 
---------- 1 balbi balbi 0 Feb 19 15:37 temporary.txt
$ cat temporary.txt 
cat: temporary.txt: Permission denied
$ cat non-existent.txt
cat: non-existent.txt: No such file or directory

just a different error code is returned...

-- 
balbi

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