linux-kernel - Re: Does vdso_install attempt to re-compile objects under root privilege?

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Message-ID: <CAHk-=whMd+O1Dqvp-=fHWW195AhWKPcvDm=Oe6PaHvg+orScgw@mail.gmail.com>
Date:   Tue, 23 Apr 2019 21:06:33 -0700
From:   Linus Torvalds <torvalds@...ux-foundation.org>
To:     Andy Lutomirski <luto@...capital.net>
Cc:     Andy Lutomirski <luto@...nel.org>,
        Masahiro Yamada <yamada.masahiro@...ionext.com>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        linux-arch <linux-arch@...r.kernel.org>, X86 ML <x86@...nel.org>,
        linux-arm-kernel <linux-arm-kernel@...ts.infradead.org>
Subject: Re: Does vdso_install attempt to re-compile objects under root privilege?

On Tue, Apr 23, 2019 at 4:57 PM Andy Lutomirski <luto@...capital.net> wrote:
>
> To clarify, this is “fail if you can’t find the files to install, but don’t even try to check whether those files are up to date”, right?

Ack. Exactly because the whole "check whether the files are
up-to-date" is generally part of the very complex dance of doing all
the version stuff etc.

               Linus