linux-kernel - Re: [PATCH v4 2/2] livepatch: force transition to finish

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Message-ID: <20171120231429.GA13906@amd>
Date:   Tue, 21 Nov 2017 00:14:29 +0100
From:   Pavel Machek <pavel@....cz>
To:     Josh Poimboeuf <jpoimboe@...hat.com>
Cc:     Miroslav Benes <mbenes@...e.cz>, jeyu@...nel.org, jikos@...nel.org,
        pmladek@...e.com, lpechacek@...e.cz, live-patching@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH v4 2/2] livepatch: force transition to finish

Hi!

> > We can also try to improve later. We could remember all forced tasks
> > and reenable rmmod once those tasks are really migrated ("shadow
> > migration"). 
> 
> NACK :-)  Forcing should hopefully be a rare event, not worth the
> trouble to try to keep track of that IMO.

Just disable rmmod in case of forced removal. Noone should be doing
rmmod on important machines. And noone should be forcing patches.

Ouch and make sure to taint the kernel.
									Pavel
-- 
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html

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