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Date:   Wed, 6 Mar 2019 16:44:40 +0100 (CET)
From:   Thomas Gleixner <>
To:     Josh Poimboeuf <>
cc:     LKML <>,,
        Andrea Arcangeli <>,
        Waiman Long <>,
        Peter Zijlstra <>,
        Jiri Kosina <>,
        Greg KH <>
Subject: Re: [PATCH] cpu/hotplug: Create SMT sysfs interface for all arches


On Fri, 1 Mar 2019, Josh Poimboeuf wrote:
> Make the /sys/devices/system/cpu/smt/* files available on all arches, so
> user space has a consistent way to detect whether SMT is enabled.
> The 'control' file now shows 'notsupported' for architectures which
> don't yet have CONFIG_HOTPLUG_SMT.

Yes, that makes sense.


Nice work!. I'll pick it up and queue it for 5.2.



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