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Message-ID: <87pne1azvt.fsf@nanos.tec.linutronix.de>
Date: Wed, 26 Feb 2020 20:53:58 +0100
From: Thomas Gleixner <tglx@...utronix.de>
To: Andy Lutomirski <luto@...nel.org>,
LKML <linux-kernel@...r.kernel.org>
Cc: x86@...nel.org, Steven Rostedt <rostedt@...dmis.org>,
Brian Gerst <brgerst@...il.com>,
Juergen Gross <jgross@...e.com>,
Paolo Bonzini <pbonzini@...hat.com>,
Arnd Bergmann <arnd@...db.de>
Subject: Re: [patch 7/8] x86/entry: Move irq tracing to prepare_exit_to_user_mode()
Andy Lutomirski <luto@...nel.org> writes:
> On 2/25/20 2:08 PM, Thomas Gleixner wrote:
>> which again gets it out of the ASM code.
>
> Why is this better than just sticking the tracing in
> __prepare_exit_from_usermode() or just not splitting it in the first
> place?
The split is there because prepare_exit_from_usermode() is used from the
idtentry maze as well. Once that stuff is converted in the later series
the split goes away again.
Thanks,
tglx
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