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From: "H. Peter Anvin" <hpa@zytor.com>
To: David Miller <davem@davemloft.net>
Cc: jbaron@redhat.com, linux-kernel@vger.kernel.org, mingo@elte.hu,
	mathieu.desnoyers@polymtl.ca, tglx@linutronix.de,
	rostedt@goodmis.org, andi@firstfloor.org, roland@redhat.com,
	rth@redhat.com, mhiramat@redhat.com, fweisbec@gmail.com,
	avi@redhat.com
Subject: Re: [PATCH 0/9] jump label v6
Date: Fri, 09 Apr 2010 23:22:53 -0700	[thread overview]
Message-ID: <4BC0193D.5030909@zytor.com> (raw)
In-Reply-To: <20100409.231607.267279645.davem@davemloft.net>

On 04/09/2010 11:16 PM, David Miller wrote:
> 
> Finally, please abstract out the jump label and string address
> type.  Even on 64-bit sparc all of the kernel addresses are 32-bits
> so we can use "u32" for all of the addresses jump label wants to
> record.  This will decrease the jump label section size.  There is
> at least one other 64-bit platform that can benefit from this,
> which I think is s390x if I'm not mistaken.
> 

Even on x86 they're 32 bits -- but signed.

	-hpa


-- 
H. Peter Anvin, Intel Open Source Technology Center
I work for Intel.  I don't speak on their behalf.


  reply	other threads:[~2010-04-10  6:23 UTC|newest]

Thread overview: 20+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-04-09 19:49 [PATCH 0/9] jump label v6 Jason Baron
2010-04-09 19:49 ` [PATCH 1/9] jump label: notifier atomic call chain notrace Jason Baron
2010-04-09 19:49 ` [PATCH 2/9] jump label: base patch Jason Baron
2010-04-09 19:49 ` [PATCH 3/9] jump label: x86 support Jason Baron
2010-04-09 19:49 ` [PATCH 4/9] jump label: tracepoint support Jason Baron
2010-04-09 19:49 ` [PATCH 5/9] jump label: add module support Jason Baron
2010-04-09 19:49 ` [PATCH 6/9] jump label: move ftrace_dyn_arch_init to common code Jason Baron
2010-04-09 19:49 ` [PATCH 7/9] jump label: sort jump table at build-time Jason Baron
2010-04-09 21:24   ` Vivek Goyal
2010-04-09 21:32     ` Roland McGrath
2010-04-09 19:50 ` [PATCH 8/9] jump label: initialize workqueue tracepoints *before* they are registered Jason Baron
2010-04-09 19:50 ` [PATCH 9/9] jump label: jump_label_text_reserved() to reserve our jump points Jason Baron
2010-04-09 21:09   ` Masami Hiramatsu
2010-04-09 20:36 ` [PATCH 0/9] jump label v6 Masami Hiramatsu
2010-04-09 21:37   ` Jason Baron
2010-04-09 21:58     ` Masami Hiramatsu
2010-04-10  6:16 ` David Miller
2010-04-10  6:22   ` H. Peter Anvin [this message]
2010-04-13 16:56 ` Mathieu Desnoyers
2010-04-14 19:34   ` Jason Baron

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