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Message-Id: <17FDEE20-A187-4493-BFA6-F09555B1EF6F@gmail.com>
Date: Thu, 20 Jun 2024 11:39:38 +0800
From: zhang warden <zhangwarden@...il.com>
To: Miroslav Benes <mbenes@...e.cz>
Cc: Song Liu <song@...nel.org>,
 Petr Mladek <pmladek@...e.com>,
 Josh Poimboeuf <jpoimboe@...nel.org>,
 Jiri Kosina <jikos@...nel.org>,
 Joe Lawrence <joe.lawrence@...hat.com>,
 live-patching@...r.kernel.org,
 linux-kernel@...r.kernel.org
Subject: Re: [PATCH] livepatch: introduce klp_func called interface



> On Jun 7, 2024, at 17:07, Miroslav Benes <mbenes@...e.cz> wrote:
> 
> It would be better than this patch but given what was mentioned in the 
> thread I wonder if it is possible to use ftrace even for this. See 
> /sys/kernel/tracing/trace_stat/function*. It already gathers the number of 
> hits.
> 

Hi, Miroslav

Can ftrace able to trace the function which I added into kernel by livepatching?

Regard
Wardenjohn

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