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From: Richard Weinberger <richard@nod.at>
To: Andrew Morton <akpm@linux-foundation.org>
Cc: linux-kernel@vger.kernel.org,
	user-mode-linux-devel@lists.sourceforge.net
Subject: Re: [PATCH 07/10] um: Set __HAVE_ARCH_GATE_AREA for x86_64
Date: Sat, 23 Jul 2011 14:15:08 +0200	[thread overview]
Message-ID: <201107231415.08718.richard@nod.at> (raw)
In-Reply-To: <20110722160127.ec061ab6.akpm@linux-foundation.org>

Am Samstag 23 Juli 2011, 01:01:27 schrieb Andrew Morton:
> On Thu, 21 Jul 2011 11:18:31 +0200
> 
> Richard Weinberger <richard@nod.at> wrote:
> > Implement arch_vma_name() and make get_gate_vma(),
> > in_gate_area() and in_gate_area_no_mm() a nop.
> > 
> > We need arch_vma_name() to support vDSO.
> 
> Well this is awkward.

Why?
Without it UML's vDSO will have no name.
E.g. when reading /proc/<pid>/maps

> >  arch/um/sys-x86_64/asm/elf.h |    1 +
> >  arch/um/sys-x86_64/mem.c     |   22 ++++++++++++++++++++++
> >  2 files changed, 23 insertions(+), 0 deletions(-)
> 
> Your um-clean-up-vm-flagsh.patch deleted arch/um/sys-x86_64/mem.c.
> 
> There's not really any appropriate .c file in arch/um/sys-x86_64 for
> these functions so I changed the patch to reinstate mem.c.
> 
> Then I changed my maind and dropped it ;) Hopefully none of the other
> patches depended on this one.
> 
> Then I looked at um-implement-a-x86_64-vdso.patch, got nervous and
> undropped um-set-__have_arch_gate_area-for-x86_64.patch.

I see, you've had some fun with this patch. ;-)
Sorry for that, I completely forgot rebasing my patches to mmotm.

Thanks,
//richard

WARNING: multiple messages have this Message-ID (diff)
From: Richard Weinberger <richard@nod.at>
To: Andrew Morton <akpm@linux-foundation.org>
Cc: linux-kernel@vger.kernel.org,
	user-mode-linux-devel@lists.sourceforge.net
Subject: Re: [uml-devel] [PATCH 07/10] um: Set __HAVE_ARCH_GATE_AREA for x86_64
Date: Sat, 23 Jul 2011 14:15:08 +0200	[thread overview]
Message-ID: <201107231415.08718.richard@nod.at> (raw)
In-Reply-To: <20110722160127.ec061ab6.akpm@linux-foundation.org>

Am Samstag 23 Juli 2011, 01:01:27 schrieb Andrew Morton:
> On Thu, 21 Jul 2011 11:18:31 +0200
> 
> Richard Weinberger <richard@nod.at> wrote:
> > Implement arch_vma_name() and make get_gate_vma(),
> > in_gate_area() and in_gate_area_no_mm() a nop.
> > 
> > We need arch_vma_name() to support vDSO.
> 
> Well this is awkward.

Why?
Without it UML's vDSO will have no name.
E.g. when reading /proc/<pid>/maps

> >  arch/um/sys-x86_64/asm/elf.h |    1 +
> >  arch/um/sys-x86_64/mem.c     |   22 ++++++++++++++++++++++
> >  2 files changed, 23 insertions(+), 0 deletions(-)
> 
> Your um-clean-up-vm-flagsh.patch deleted arch/um/sys-x86_64/mem.c.
> 
> There's not really any appropriate .c file in arch/um/sys-x86_64 for
> these functions so I changed the patch to reinstate mem.c.
> 
> Then I changed my maind and dropped it ;) Hopefully none of the other
> patches depended on this one.
> 
> Then I looked at um-implement-a-x86_64-vdso.patch, got nervous and
> undropped um-set-__have_arch_gate_area-for-x86_64.patch.

I see, you've had some fun with this patch. ;-)
Sorry for that, I completely forgot rebasing my patches to mmotm.

Thanks,
//richard

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  reply	other threads:[~2011-07-23 12:15 UTC|newest]

Thread overview: 24+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-07-21  9:18 [PATCH 01/10] uml: cow_user.c warning corrections Richard Weinberger
2011-07-21  9:18 ` [uml-devel] " Richard Weinberger
2011-07-21  9:18 ` [PATCH 02/10] uml: helper.c " Richard Weinberger
2011-07-21  9:18   ` [uml-devel] " Richard Weinberger
2011-07-21  9:18 ` [PATCH 03/10] uml: drivers/slip_user.c memory leak fix Richard Weinberger
2011-07-21  9:18   ` [uml-devel] " Richard Weinberger
2011-07-21  9:18 ` [PATCH 04/10] uml: free resources Richard Weinberger
2011-07-21  9:18   ` [uml-devel] " Richard Weinberger
2011-07-21  9:18 ` [PATCH 05/10] um: Disable scan_elf_aux() on x86_64 Richard Weinberger
2011-07-21  9:18   ` [uml-devel] " Richard Weinberger
2011-07-21  9:18 ` [PATCH 06/10] um: Set __HAVE_ARCH_GATE_AREA for i386 Richard Weinberger
2011-07-21  9:18   ` [uml-devel] " Richard Weinberger
2011-07-21  9:18 ` [PATCH 07/10] um: Set __HAVE_ARCH_GATE_AREA for x86_64 Richard Weinberger
2011-07-21  9:18   ` [uml-devel] " Richard Weinberger
2011-07-22 23:01   ` Andrew Morton
2011-07-23 12:15     ` Richard Weinberger [this message]
2011-07-23 12:15       ` [uml-devel] " Richard Weinberger
2011-07-21  9:18 ` [PATCH 08/10] um: Implement a x86_64 vDSO Richard Weinberger
2011-07-21  9:18 ` [PATCH 09/10] um: Ajdust size of pid_buf Richard Weinberger
2011-07-21  9:18   ` [uml-devel] " Richard Weinberger
2011-07-21  9:38   ` Geert Uytterhoeven
2011-07-21  9:48     ` Richard Weinberger
2011-07-21  9:18 ` [PATCH 10/10] um: Remove dead code Richard Weinberger
2011-07-21  9:18   ` [uml-devel] " Richard Weinberger

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