Re: [PATCH v2 0/6] Collected vdso/vsyscall fixes for 3.1

From: Konrad Rzeszutek Wilk
Date: Wed Aug 03 2011 - 09:56:33 EST


On Wed, Aug 03, 2011 at 09:53:22AM -0400, Konrad Rzeszutek Wilk wrote:
> On Wed, Aug 03, 2011 at 09:31:48AM -0400, Andy Lutomirski wrote:
> > This fixes various problems that cropped up with the vdso patches.
> >
> > - Patch 1 fixes an information leak to userspace.
> > - Patches 2 and 3 fix the kernel build on gold.
> > - Patches 4 and 5 fix Xen (I hope).
> > - Patch 6 (optional) adds a trace event to vsyscall emulation. It will
> > make it easier to handle performance regression reports :)
>
> Hm, you seemed to have the x86 maintainers on your email..

I definitly need some coffee. What I meant was that you missing putting
the x86 maintainers on this patchset. They are the ones that will handle this.

I put them on the To list for you.
> >
> > [1] https://gitorious.org/linux-test-utils/linux-clock-tests
> >
> > Changes from v1:
> > - Improve changelog message for "x86-64/xen: Enable the vvar mapping"
> > - Fix 32-bit build.
> > - Add patch 6.
> >
> > Andy Lutomirski (6):
> > x86-64: Pad vDSO to a page boundary
> > x86-64: Move the "user" vsyscall segment out of the data segment.
> > x86-64: Work around gold bug 13023
> > x86-64/xen: Enable the vvar mapping
> > x86-64: Add user_64bit_mode paravirt op
> > x86-64: Add vsyscall:emulate_vsyscall trace event
> >
> > arch/x86/include/asm/desc.h | 4 +-
> > arch/x86/include/asm/paravirt_types.h | 6 ++++
> > arch/x86/include/asm/ptrace.h | 19 +++++++++++++
> > arch/x86/kernel/paravirt.c | 4 +++
> > arch/x86/kernel/step.c | 2 +-
> > arch/x86/kernel/vmlinux.lds.S | 46 ++++++++++++++++++---------------
> > arch/x86/kernel/vsyscall_64.c | 12 +++++---
> > arch/x86/kernel/vsyscall_trace.h | 29 ++++++++++++++++++++
> > arch/x86/mm/fault.c | 2 +-
> > arch/x86/vdso/vdso.S | 1 +
> > arch/x86/xen/enlighten.c | 4 +++
> > arch/x86/xen/mmu.c | 4 ++-
> > 12 files changed, 102 insertions(+), 31 deletions(-)
> > create mode 100644 arch/x86/kernel/vsyscall_trace.h
> >
> > --
> > 1.7.6
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