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From: Steven Rostedt <rostedt@goodmis.org>
To: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: Dominik Vogt <vogt@linux.vnet.ibm.com>,
	Masami Hiramatsu <maasami.hiramatsu.pt@hitachi.com>,
	Vojtech Pavlik <vojtech@suse.cz>, Jiri Kosina <jkosina@suse.cz>,
	Jiri Slaby <jslaby@suse.cz>,
	Andreas Krebbel <krebbel@linux.vnet.ibm.com>,
	Martin Schwidefsky <schwidefsky@de.ibm.com>,
	linux-kernel@vger.kernel.org
Subject: Re: [PATCH/RFC 2/3] ftrace: introduce nohotpatch function attribute
Date: Wed, 28 Jan 2015 06:57:54 -0500	[thread overview]
Message-ID: <20150128065754.4466f07b@gandalf.local.home> (raw)
In-Reply-To: <20150128053645.GA4633@osiris>

On Wed, 28 Jan 2015 06:36:45 +0100
Heiko Carstens <heiko.carstens@de.ibm.com> wrote:

> On Tue, Jan 27, 2015 at 09:42:28AM -0500, Steven Rostedt wrote:
> > On Tue, 27 Jan 2015 07:19:42 +0100
> > Dominik Vogt <vogt@linux.vnet.ibm.com> wrote:
> >  
> > > While the kernel may use only profiling or hotpatch at the same
> > > time, Gcc is able to generate both for the same function.
> > 
> > Understood, but would that be useful for the kernel?
> 
> Right now not. We may change that anyway in the future if needed.
> 
> Steven, how do we proceed with this small series?
> 
> Since there don't seem to be any objections, I'll repost with the
> changed notrace define. However I think the whole stuff should go
> upstream via the ftrace tree. Is that ok with you?

I can take it or you can, I'm fine either way. If you want to take it,
just add my Acked-by. If you prefer me to take it, just let me know.

-- Steve

> 
> FWIW, the s390 gcc hotpatch feature was merged in the meantime:
> https://gcc.gnu.org/git/?p=gcc.git;a=commit;h=11762b8363737591bfb9c66093bc2edf289b917f


  reply	other threads:[~2015-01-28 20:14 UTC|newest]

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-01-26 12:54 [PATCH/RFC 0/3] ftrace: allow arch specific compile options Heiko Carstens
2015-01-26 12:54 ` [PATCH/RFC 1/3] ftrace: allow architectures to specify ftrace " Heiko Carstens
2015-01-26 12:54 ` [PATCH/RFC 2/3] ftrace: introduce nohotpatch function attribute Heiko Carstens
2015-01-26 14:37   ` Steven Rostedt
2015-01-26 15:03     ` Heiko Carstens
2015-01-26 15:22       ` Steven Rostedt
2015-01-26 15:26         ` Heiko Carstens
2015-01-27  6:19     ` Dominik Vogt
2015-01-27 14:42       ` Steven Rostedt
2015-01-28  5:36         ` Heiko Carstens
2015-01-28 11:57           ` Steven Rostedt [this message]
2015-01-28 12:18             ` Heiko Carstens
2015-01-28 12:38               ` Steven Rostedt
2015-01-26 12:54 ` [PATCH/RFC 3/3] s390/ftrace: hotpatch support for function tracing Heiko Carstens

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