linux-kernel - Re: [PATCH tip/sched/core] mm/early_ioremap: Adjust early_ioremap system

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Message-ID: <alpine.DEB.2.20.1706161257250.2254@nanos>
Date:   Fri, 16 Jun 2017 12:58:55 +0200 (CEST)
From:   Thomas Gleixner <tglx@...utronix.de>
To:     Tom Lendacky <thomas.lendacky@....com>
cc:     linux-mm@...ck.org, linux-kernel@...r.kernel.org,
        Borislav Petkov <bp@...e.de>, Ingo Molnar <mingo@...nel.org>
Subject: Re: [PATCH tip/sched/core] mm/early_ioremap: Adjust early_ioremap
 system_state check

On Wed, 14 Jun 2017, Tom Lendacky wrote:
> A recent change added a new system_state value, SYSTEM_SCHEDULING, which
> exposed a warning issued by early_ioreamp() when the system_state was not
> SYSTEM_BOOTING. Since early_ioremap() can be called when the system_state
> is SYSTEM_SCHEDULING, the check to issue the warning is changed from
> system_state != SYSTEM_BOOTING to system_state >= SYSTEM_RUNNING.

Errm, why is that early_ioremap() stuff called after we enabled the
scheduler? At that point the regular ioremap stuff is long working.

Thanks,

	tglx