lists.openwall.net   lists  /  announce  owl-users  owl-dev  john-users  john-dev  passwdqc-users  yescrypt  popa3d-users  /  oss-security  kernel-hardening  musl  sabotage  tlsify  passwords  /  crypt-dev  xvendor  /  Bugtraq  Full-Disclosure  linux-kernel  linux-netdev  linux-ext4  linux-hardening  linux-cve-announce  PHC 
Open Source and information security mailing list archives
 
Hash Suite: Windows password security audit tool. GUI, reports in PDF.
[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Date: Fri, 26 Jan 2024 10:31:07 -0800
From: Linus Torvalds <torvalds@...ux-foundation.org>
To: Steven Rostedt <rostedt@...dmis.org>
Cc: LKML <linux-kernel@...r.kernel.org>, 
	Linux Trace Kernel <linux-trace-kernel@...r.kernel.org>, Masami Hiramatsu <mhiramat@...nel.org>, 
	Mathieu Desnoyers <mathieu.desnoyers@...icios.com>, Christian Brauner <brauner@...nel.org>, 
	Ajay Kaher <ajay.kaher@...adcom.com>, Geert Uytterhoeven <geert@...ux-m68k.org>, 
	linux-fsdevel <linux-fsdevel@...r.kernel.org>
Subject: Re: [PATCH] eventfs: Give files a default of PAGE_SIZE size

On Fri, 26 Jan 2024 at 10:18, Steven Rostedt <rostedt@...dmis.org> wrote:
>
> By following what sysfs does, and give files a default size of PAGE_SIZE,
> it allows the tar to work. No event file is greater than PAGE_SIZE.

No, please. Just don't.

Nobody has asked for this, and nobody sane should use 'tar' on tracefs anyway.

It hasn't worked before, so saying "now you can use tar" is just a
*bad* idea. There is no upside, only downsides, with tar either (a)
not working at all on older kernels or (b) complaining about how the
size isn't reliable on newer ones.

So please. You should *NOT* look at "this makes tar work, albeit badly".

You should look at whether it improves REAL LOADS. And it doesn't. All
it does is add a hack for a bad idea. Leave it alone.

                   Linus

Powered by blists - more mailing lists

Powered by Openwall GNU/*/Linux Powered by OpenVZ