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Date:   Tue, 19 Jun 2018 19:32:49 +0200 (CEST)
From:   Thomas Gleixner <tglx@linutronix.de>
To:     Pavel Tatashin <pasha.tatashin@oracle.com>
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Subject: Re: [PATCH v10 1/7] x86/tsc: remove tsc_disabled flag
In-Reply-To: <20180615174204.30581-2-pasha.tatashin@oracle.com>
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On Fri, 15 Jun 2018, Pavel Tatashin wrote:

> tsc_disabled is set when notsc is passed as kernel parameter. The reason we
> have notsc is to avoid timing problems on multi-socket systems.  We already
> have a mechanism, however, to detect and resolve these issues by invoking
> tsc unstable path. Thus, make notsc to behave the same as tsc=unstable.

notsc also excludes TSC from being used at all, while with your change its
suddenly used in sched_clock().

I'm not opposed to that change but the changelog is completely misleading
as it suggest that this is a change which has no functional impact.

Thanks,

	tglx