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X-powerpc-patch-notification: thanks
X-powerpc-patch-commit: ead514d5fb30a0889d51c0f0e35c3e346165a955
In-Reply-To: <c4d682fbba703e58853feb81e306e006f59ca62e.1492606062.git.naveen.n.rao@linux.vnet.ibm.com>
To: "Naveen N. Rao" <naveen.n.rao@linux.vnet.ibm.com>
From: Michael Ellerman <patch-notifications@ellerman.id.au>
Cc: linux-kernel@vger.kernel.org, linuxppc-dev@lists.ozlabs.org,
        Masami Hiramatsu <mhiramat@kernel.org>, Ingo Molnar <mingo@kernel.org>
Subject: Re: [v4,4/6] powerpc: kprobes: add support for KPROBES_ON_FTRACE
Message-Id: <3wBhLW1xZrz9s8c@ozlabs.org>
Date: Tue, 25 Apr 2017 08:47:31 +1000 (AEST)
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On Wed, 2017-04-19 at 12:52:26 UTC, "Naveen N. Rao" wrote:
> Allow kprobes to be placed on ftrace _mcount() call sites. This
> optimization avoids the use of a trap, by riding on ftrace
> infrastructure.
> 
> This depends on HAVE_DYNAMIC_FTRACE_WITH_REGS which depends on
> MPROFILE_KERNEL, which is only currently enabled on powerpc64le with
> newer toolchains.
> 
> Based on the x86 code by Masami.
> 
> Signed-off-by: Naveen N. Rao <naveen.n.rao@linux.vnet.ibm.com>

Applied to powerpc next, thanks.

https://git.kernel.org/powerpc/c/ead514d5fb30a0889d51c0f0e35c3e

cheers