From mboxrd@z Thu Jan 1 00:00:00 1970 From: David Miller Subject: Re: Kevent POSIX timers support. Date: Mon, 27 Nov 2006 10:49:55 -0800 (PST) Message-ID: <20061127.104955.48519839.davem@davemloft.net> References: <456B2C82.7040700@redhat.com> <20061127.102443.74556125.davem@davemloft.net> <456B3016.9020706@redhat.com> Mime-Version: 1.0 Content-Type: Text/Plain; charset=us-ascii Content-Transfer-Encoding: 7bit Cc: johnpol@2ka.mipt.ru, akpm@osdl.org, netdev@vger.kernel.org, zach.brown@oracle.com, hch@infradead.org, chase.venters@clientec.com, johann.borck@densedata.com, linux-kernel@vger.kernel.org, jeff@garzik.org, aviro@redhat.com Return-path: Received: from 74-93-104-97-Washington.hfc.comcastbusiness.net ([74.93.104.97]:14512 "EHLO sunset.davemloft.net") by vger.kernel.org with ESMTP id S1758530AbWK0Stx (ORCPT ); Mon, 27 Nov 2006 13:49:53 -0500 To: drepper@redhat.com In-Reply-To: <456B3016.9020706@redhat.com> Sender: netdev-owner@vger.kernel.org List-Id: netdev.vger.kernel.org From: Ulrich Drepper Date: Mon, 27 Nov 2006 10:36:06 -0800 > David Miller wrote: > > Now we'll have to have a compat layer for 32-bit/64-bit environments > > thanks to POSIX timers, which is rediculious. > > We already have compat_sys_timer_create. It should be sufficient just > to add the conversion (if anything new is needed) there. The pointer > value can be passed to userland in one or two int fields, I don't really > care. When reporting the event to the user code we cannot just point > into the ring buffer anyway. So while copying the data we can rewrite > it if necessary. I see no need to complicate the code more than it > already is. Ok, as long as that thing doesn't end up in the ring buffer entry data structure, that's where the real troubles would be.