From: "H. Peter Anvin" <hpa@linux.intel.com>
To: Andy Lutomirski <luto@amacapital.net>
Cc: Linus Torvalds <torvalds@linux-foundation.org>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
Stefani Seibold <stefani@seibold.net>,
the arch/x86 maintainers <x86@kernel.org>,
Dave Jones <davej@redhat.com>,
Martin Runge <Martin.Runge@rohde-schwarz.com>,
Andreas Brief <Andreas.Brief@rohde-schwarz.com>
Subject: Re: [PATCH v2] x86: Remove compat vdso support
Date: Tue, 11 Mar 2014 10:03:03 -0700 [thread overview]
Message-ID: <531F41C7.6070003@linux.intel.com> (raw)
In-Reply-To: <CALCETrXt5=N7U-f1i+oCkbF5xqc0Qn8U_C9B47grcuEagAhDEA@mail.gmail.com>
On 03/11/2014 09:45 AM, Andy Lutomirski wrote:
>
> We could even just relocate the damn thing wherever it ends up. That
> will waste one page of memory per process, though.
>
We could definitely relocate it once and use the address across all
processes (e.g. top of the user address space.)
However, just changing one reserved page to two really is a trivial
change which preserves the status quo.
-hpa
next prev parent reply other threads:[~2014-03-11 17:03 UTC|newest]
Thread overview: 39+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-03-11 1:03 [PATCH v2] x86: Remove compat vdso support Andy Lutomirski
2014-03-11 1:39 ` Linus Torvalds
2014-03-11 2:37 ` Andy Lutomirski
2014-03-11 3:09 ` Linus Torvalds
2014-03-11 4:10 ` Andy Lutomirski
2014-03-11 8:37 ` Ingo Molnar
2014-03-11 9:36 ` Linus Torvalds
2014-03-11 14:53 ` Andy Lutomirski
2014-03-11 15:30 ` Linus Torvalds
2014-03-11 16:14 ` H. Peter Anvin
2014-03-11 16:30 ` Linus Torvalds
2014-03-11 16:42 ` Andy Lutomirski
2014-03-11 16:42 ` H. Peter Anvin
2014-03-11 16:45 ` Andy Lutomirski
2014-03-11 16:50 ` Andy Lutomirski
2014-03-11 16:52 ` H. Peter Anvin
2014-03-11 17:09 ` Linus Torvalds
2014-03-11 17:14 ` H. Peter Anvin
2014-03-11 17:16 ` Andy Lutomirski
2014-03-12 8:30 ` Stefani Seibold
2014-03-12 14:41 ` Linus Torvalds
2014-03-12 15:46 ` Linus Torvalds
2014-03-12 16:04 ` Linus Torvalds
2014-03-12 16:18 ` Brian Gerst
2014-03-12 16:18 ` Andy Lutomirski
2014-03-12 19:41 ` Linus Torvalds
2014-03-12 20:52 ` Andy Lutomirski
2014-03-12 21:37 ` H. Peter Anvin
2014-03-12 21:45 ` Andy Lutomirski
2014-03-12 21:46 ` Linus Torvalds
2014-03-12 21:49 ` Andy Lutomirski
2014-03-12 23:06 ` H. Peter Anvin
2014-03-12 23:43 ` Andy Lutomirski
2014-03-12 23:46 ` H. Peter Anvin
2014-03-13 16:23 ` Thomas Gleixner
2014-03-12 13:55 ` One Thousand Gnomes
2014-03-13 7:08 ` George Spelvin
2014-03-11 17:03 ` H. Peter Anvin [this message]
2014-03-11 17:07 ` Linus Torvalds
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