linux-kernel - Re: [PATCH] livepatch: introduce klp

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Date: Fri, 31 May 2024 09:21:02 +0200 (CEST)
From: Miroslav Benes <mbenes@...e.cz>
To: zhang warden <zhangwarden@...il.com>
cc: 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

Hi,

On Fri, 31 May 2024, zhang warden wrote:

> 
> Hi Bros,
> 
> How about my patch? I do think it is a viable feature to show the state 
> of the patched function. If we add an unlikely branch test before we set 
> the 'called' state, once this function is called, there maybe no 
> negative effect to the performance.

you have not replied to my questions/feedback yet.

Also, I do not think that unlikely changes anything here. It is a simple 
branch after all.

Miroslav