From: Clemens Ladisch <clemens@ladisch.de>
To: Andy Lutomirski <luto@amacapital.net>
Cc: x86@kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH] x86: Remove hpet vclock support
Date: Sat, 01 Feb 2014 16:43:34 +0100 [thread overview]
Message-ID: <52ED1626.7060905@ladisch.de> (raw)
In-Reply-To: <d348afdb2f6acc41dde0381396226b69a0358f8b.1391210357.git.luto@amacapital.net>
Andy Lutomirski wrote:
> The HPET is so amazingly slow that this is barely a win.
What happens on CPUs where the TSC cannot be used for the clock?
> it scares me a tiny bit to map a piece of crappy hardware where every
> userspace program can poke at it (even if said poking is read-only).
> Let's just remove it.
So this mapping is a backdoor to bypass the restrictions on /dev/hpet? ;-)
Regards,
Clemens
next prev parent reply other threads:[~2014-02-01 15:44 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-01-31 23:19 [PATCH] x86: Remove hpet vclock support Andy Lutomirski
2014-02-01 15:43 ` Clemens Ladisch [this message]
2014-02-01 17:10 ` Andy Lutomirski
2014-02-04 19:31 ` Thomas Gleixner
2014-02-04 19:41 ` Andy Lutomirski
2014-02-04 20:29 ` Thomas Gleixner
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