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From: David Howells <dhowells@redhat.com>
To: Alan Cox <alan@lxorguk.ukuu.org.uk>
Cc: torvalds@osdl.org, akpm@osdl.org, jakub@redhat.com,
	Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH] Shift key-related error codes up and insert ECANCELED
Date: Mon, 25 Oct 2004 10:31:01 +0100	[thread overview]
Message-ID: <14486.1098696661@redhat.com> (raw)
In-Reply-To: <1098470076.19458.37.camel@localhost.localdomain>


> You should use existing codes IMHO. Lets see
> 
> EKEYEXPIRED		-	ETIME (ETIMEDOUT ? ENOLINK ?)
> ENOKEY			-	ENOENT
> EKEYREJECTED		-	EILSEQ / EMSGSIZE / EPROTOTYPE ..
> EKEYREVOKED		-	EREMCHG / ESHUTDOWN

The problem with doing that is that these error codes have specific meanings
that we're then violating the standards by overloading. Take open() for
example: it's possible that this will return ENOENT because there's no file
there to be opened; I think it's a bad idea for it to return ENOENT when there
is a file there, but we don't have a key, hence ENOKEY.

David

  reply	other threads:[~2004-10-25  9:31 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2004-10-22 16:57 [PATCH] Shift key-related error codes up and insert ECANCELED David Howells
2004-10-22 17:14 ` Jakub Jelinek
2004-10-22 18:34 ` Alan Cox
2004-10-25  9:31   ` David Howells [this message]
2004-10-25  9:48     ` Arjan van de Ven

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