From: "H. Peter Anvin" <hpa@zytor.com>
To: Andy Lutomirski <luto@amacapital.net>,
"H. Peter Anvin" <hpa@linux.intel.com>,
Linus Torvalds <torvalds@linux-foundation.org>,
x86@kernel.org
Cc: Stefani Seibold <stefani@seibold.net>,
Andreas Brief <Andreas.Brief@rohde-schwarz.com>,
Martin Runge <Martin.Runge@rohde-schwarz.com>,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
Dave Jones <davej@redhat.com>, Andi Kleen <andi@firstfloor.org>
Subject: Re: [PATCH v2 0/2] x86: Relocate the compat vdso per process
Date: Tue, 11 Mar 2014 22:02:33 -0700 [thread overview]
Message-ID: <531FEA69.7050107@zytor.com> (raw)
In-Reply-To: <cover.1394575968.git.luto@amacapital.net>
On 03/11/2014 03:15 PM, Andy Lutomirski wrote:
> The meat of this patch series is in patch 1. Patch 2 is split out for
> improved bisectability.
>
> Changes from v1: Split into two patches and fixed a comment.
>
> Andy Lutomirski (2):
> x86: Dynamically relocate the compat vdso
> x86_32: Remove user bit from identity map PDE
>
> Documentation/kernel-parameters.txt | 18 +++-
> arch/x86/Kconfig | 24 +++--
> arch/x86/include/asm/elf.h | 4 -
> arch/x86/include/asm/fixmap.h | 8 --
> arch/x86/include/asm/pgtable_types.h | 7 +-
> arch/x86/include/asm/vdso.h | 5 +-
> arch/x86/vdso/vdso-layout.lds.S | 2 +-
> arch/x86/vdso/vdso32-setup.c | 173 ++++++++++++++++-------------------
> arch/x86/vdso/vdso32/vdso32.lds.S | 2 -
> 9 files changed, 111 insertions(+), 132 deletions(-)
>
Why per process? *If* we have compat vdso turned on, can't we just put
it in one place system-wide?
-hpa
next prev parent reply other threads:[~2014-03-12 5:03 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-03-11 22:15 [PATCH v2 0/2] x86: Relocate the compat vdso per process Andy Lutomirski
2014-03-11 22:15 ` [PATCH v2 1/2] x86: Dynamically relocate the compat vdso Andy Lutomirski
2014-03-11 22:15 ` [PATCH v2 2/2] x86_32: Remove user bit from identity map PDE Andy Lutomirski
2014-03-12 5:02 ` H. Peter Anvin [this message]
2014-03-12 6:09 ` [PATCH v2 0/2] x86: Relocate the compat vdso per process Andy Lutomirski
2014-03-12 6:14 ` H. Peter Anvin
2014-03-12 16:20 ` Andy Lutomirski
2014-03-12 17:32 ` H. Peter Anvin
2014-03-12 17:55 ` Andy Lutomirski
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