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From: Christoph Hellwig <hch@infradead.org>
To: Ingo Molnar <mingo@elte.hu>
Cc: Christoph Hellwig <hch@infradead.org>,
	Pierre Peiffer <pierre.peiffer@bull.net>,
	LKML <linux-kernel@vger.kernel.org>,
	Ulrich Drepper <drepper@redhat.com>,
	Jakub Jelinek <jakub@redhat.com>,
	Jean-Pierre Dion <jean-pierre.dion@bull.net>
Subject: Re: [PATCH 2.6.20-rc5 4/4] sys_futex64 : allows 64bit futexes
Date: Thu, 18 Jan 2007 22:35:50 +0000	[thread overview]
Message-ID: <20070118223550.GC5404@infradead.org> (raw)
In-Reply-To: <20070118074556.GB29128@elte.hu>

On Thu, Jan 18, 2007 at 08:45:56AM +0100, Ingo Molnar wrote:
> actually, we have a big multiplexer there already, so it's only 
> symmetric. Nothing is served by doing it half-assed. I raised the issue 
> of the multiplexer back when the first futex API was merged (years ago), 
> and it was rejected. Now whether you like it or not we've got to live 
> with that decision. You are certainly free to introduce a patchset with 
> a completely new set of syscall vectors to demultiplex all futex APIs, 
> but to just start a half-done demultiplexing makes zero sense.

dding new syscalls for the old functionality is totally pointless as
we have to support the old entry point forever anyway.  And new code
is using the new entry point, so let's get that right.

      parent reply	other threads:[~2007-01-18 22:35 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <45ADDF60.5080704@bull.net>
2007-01-17  9:00 ` [PATCH 2.6.20-rc5 1/4] futex priority based wakeup Pierre Peiffer
2007-01-17  9:01 ` [PATCH 2.6.20-rc5 2/4] Make futex_wait() use an hrtimer for timeout Pierre Peiffer
2007-01-17  9:03 ` [PATCH 2.6.20-rc5 3/4] futex_requeue_pi optimization Pierre Peiffer
2007-01-17  9:04 ` [PATCH 2.6.20-rc5 4/4] sys_futex64 : allows 64bit futexes Pierre Peiffer
2007-01-18  0:17   ` Christoph Hellwig
2007-01-18  7:45     ` Ingo Molnar
2007-01-18 22:34       ` Christoph Hellwig
2007-01-18 22:35       ` Christoph Hellwig [this message]

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