linux-kernel - Re: [PATCH -tip ] [BUGFIX] kprobes: Move hash

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Message-ID: <20130312082112.GB30665@gmail.com>
Date:	Tue, 12 Mar 2013 09:21:12 +0100
From:	Ingo Molnar <mingo@...nel.org>
To:	Masami Hiramatsu <masami.hiramatsu.pt@...achi.com>
Cc:	Ingo Molnar <mingo@...hat.com>, linux-kernel@...r.kernel.org,
	Timo Juhani Lindfors <timo.lindfors@....fi>,
	Ananth N Mavinakayanahalli <ananth@...ibm.com>,
	Pavel Emelyanov <xemul@...allels.com>,
	Jiri Kosina <jkosina@...e.cz>,
	Nadia Yvette Chambers <nyc@...omorphy.com>,
	yrl.pp-manager.tt@...achi.com,
	"David S. Miller" <davem@...emloft.net>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Linus Torvalds <torvalds@...ux-foundation.org>
Subject: Re: [PATCH -tip ] [BUGFIX] kprobes: Move hash_64() into .text.kprobe
 section


* Masami Hiramatsu <masami.hiramatsu.pt@...achi.com> wrote:

> @@ -31,7 +32,7 @@
>  #error Wordsize not 32 or 64
>  #endif
>  
> -static inline u64 hash_64(u64 val, unsigned int bits)
> +static __kprobes inline u64 hash_64(u64 val, unsigned int bits)
>  {
>  	u64 hash = val;

We should also, really, really fix the '__kprobes' misnomer and switch to 
the '__noprobe' pattern or so. The naming does not make it obvious at all 
that what we do here is to turn _off_ kprobing of select functions...

The only complication is that __kprobes is now present in 600+ places, 
which will create merge conflicts. If you remind me during the next merge 
window I can generate the rename on the spot and send it to Linus without 
anyone having to carry the patch for too long.

Thanks,

	Ingo
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