linux-kernel - Re: [GIT PULL] ring-buffer: Updates for v6.15

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Message-ID: <CAHk-=wjZ_OyyvRFuMkW8RPR_Hehm=sX5dYs1R_uF3F6Y4MnXow@mail.gmail.com>
Date: Thu, 27 Mar 2025 20:43:07 -0700
From: Linus Torvalds <torvalds@...ux-foundation.org>
To: Steven Rostedt <rostedt@...dmis.org>
Cc: LKML <linux-kernel@...r.kernel.org>, Masami Hiramatsu <mhiramat@...nel.org>, 
	Mathieu Desnoyers <mathieu.desnoyers@...icios.com>, Feng Yang <yangfeng@...inos.cn>, 
	Jiapeng Chong <jiapeng.chong@...ux.alibaba.com>
Subject: Re: [GIT PULL] ring-buffer: Updates for v6.15

On Thu, 27 Mar 2025 at 20:27, Steven Rostedt <rostedt@...dmis.org> wrote:
>
> So you are saying that you want this to save the page struct directly
> then. My only concern with that is the added memory to save the
> structure when it could be easily calculated.

I think with the right amount of clean abstraction work, you can
probably salvage this without having to do the double accounting.

Because I did like your rb_get_page() concept at least in that pseudo-code form.

I don't know what the actual tested end result looks like, maybe there
ends up being problems with it..

         Linus