From: Will Deacon <will.deacon@arm.com>
To: Andy Lutomirski <luto@amacapital.net>
Cc: "linux-ia64@vger.kernel.org" <linux-ia64@vger.kernel.org>,
"linux-sh@vger.kernel.org" <linux-sh@vger.kernel.org>,
Catalin Marinas <Catalin.Marinas@arm.com>,
Heiko Carstens <heiko.carstens@de.ibm.com>,
"linux-mm@kvack.org" <linux-mm@kvack.org>,
Paul Mackerras <paulus@samba.org>,
"H. Peter Anvin" <hpa@zytor.com>,
linux-arch <linux-arch@vger.kernel.org>,
"linux-s390@vger.kernel.org" <linux-s390@vger.kernel.org>,
Richard Weinberger <richard@nod.at>, X86 ML <x86@kernel.org>,
Ingo Molnar <mingo@redhat.com>, Fenghua Yu <fenghua.yu@intel.com>,
"user-mode-linux-devel@lists.sourceforge.net"
<user-mode-linux-devel@lists.sourceforge.net>,
Jeff Dike <jdike@addtoit.com>,
Chris Metcalf <cmetcalf@tilera.com>,
Thomas Gleixner <tglx@linutronix.de>,
"linux-arm-kernel@lists.infradead.org"
<linux-arm-kernel@lists.infradead.org>,
Tony Luck <tony.luck@intel.com>, Nathan Lynch <Nathan_Lynch@men>
Subject: Re: [PATCH v3] arm64, ia64, ppc, s390, sh, tile, um, x86, mm: Remove default gate area
Date: Fri, 18 Jul 2014 11:14:16 +0100 [thread overview]
Message-ID: <20140718101416.GB1818@arm.com> (raw)
In-Reply-To: <CALCETrXG6nL4K=Er+kv5-CXBDVa0TLg9yR6iePnMyE2ufXgKkw@mail.gmail.com>
On Tue, Jul 15, 2014 at 03:47:26PM +0100, Andy Lutomirski wrote:
> On Sun, Jul 13, 2014 at 1:01 PM, Andy Lutomirski <luto@amacapital.net> wrote:
> > The core mm code will provide a default gate area based on
> > FIXADDR_USER_START and FIXADDR_USER_END if
> > !defined(__HAVE_ARCH_GATE_AREA) && defined(AT_SYSINFO_EHDR).
> >
> > This default is only useful for ia64. arm64, ppc, s390, sh, tile,
> > 64-bit UML, and x86_32 have their own code just to disable it. arm,
> > 32-bit UML, and x86_64 have gate areas, but they have their own
> > implementations.
> >
> > This gets rid of the default and moves the code into ia64.
> >
> > This should save some code on architectures without a gate area: it's
> > now possible to inline the gate_area functions in the default case.
>
> Can one of you pull this somewhere? Otherwise I can put it somewhere
> stable and ask for -next inclusion, but that seems like overkill for a
> single patch.
I'd be happy to take the arm64 part, but it doesn't feel right for mm/*
changes (or changes to other archs) to go via our tree.
I'm not sure what the best approach is if you want to send this via a single
tree. Maybe you could ask akpm nicely?
Will
_______________________________________________
Linuxppc-dev mailing list
Linuxppc-dev@lists.ozlabs.org
https://lists.ozlabs.org/listinfo/linuxppc-dev
WARNING: multiple messages have this Message-ID (diff)
From: Will Deacon <will.deacon@arm.com>
To: Andy Lutomirski <luto@amacapital.net>
Cc: "linux-ia64@vger.kernel.org" <linux-ia64@vger.kernel.org>,
"linux-sh@vger.kernel.org" <linux-sh@vger.kernel.org>,
Catalin Marinas <Catalin.Marinas@arm.com>,
Heiko Carstens <heiko.carstens@de.ibm.com>,
"linux-mm@kvack.org" <linux-mm@kvack.org>,
Paul Mackerras <paulus@samba.org>,
"H. Peter Anvin" <hpa@zytor.com>,
linux-arch <linux-arch@vger.kernel.org>,
"linux-s390@vger.kernel.org" <linux-s390@vger.kernel.org>,
Richard Weinberger <richard@nod.at>, X86 ML <x86@kernel.org>,
Ingo Molnar <mingo@redhat.com>, Fenghua Yu <fenghua.yu@intel.com>,
"user-mode-linux-devel@lists.sourceforge.net"
<user-mode-linux-devel@lists.sourceforge.net>,
Jeff Dike <jdike@addtoit.com>,
Chris Metcalf <cmetcalf@tilera.com>,
Thomas Gleixner <tglx@linutronix.de>,
"linux-arm-kernel@lists.infradead.org"
<linux-arm-kernel@lists.infradead.org>,
Tony Luck <tony.luck@intel.com>,
Nathan Lynch <Nathan_Lynch@mentor.com>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
Martin Schwidefsky <schwidefsky@de.ibm.com>,
"linux390@de.ibm.com" <linux390@de.ibm.com>,
"linuxppc-dev@lists.ozlabs.org" <linuxppc-dev@lists.ozlabs.org>
Subject: Re: [PATCH v3] arm64, ia64, ppc, s390, sh, tile, um, x86, mm: Remove default gate area
Date: Fri, 18 Jul 2014 11:14:16 +0100 [thread overview]
Message-ID: <20140718101416.GB1818@arm.com> (raw)
In-Reply-To: <CALCETrXG6nL4K=Er+kv5-CXBDVa0TLg9yR6iePnMyE2ufXgKkw@mail.gmail.com>
On Tue, Jul 15, 2014 at 03:47:26PM +0100, Andy Lutomirski wrote:
> On Sun, Jul 13, 2014 at 1:01 PM, Andy Lutomirski <luto@amacapital.net> wrote:
> > The core mm code will provide a default gate area based on
> > FIXADDR_USER_START and FIXADDR_USER_END if
> > !defined(__HAVE_ARCH_GATE_AREA) && defined(AT_SYSINFO_EHDR).
> >
> > This default is only useful for ia64. arm64, ppc, s390, sh, tile,
> > 64-bit UML, and x86_32 have their own code just to disable it. arm,
> > 32-bit UML, and x86_64 have gate areas, but they have their own
> > implementations.
> >
> > This gets rid of the default and moves the code into ia64.
> >
> > This should save some code on architectures without a gate area: it's
> > now possible to inline the gate_area functions in the default case.
>
> Can one of you pull this somewhere? Otherwise I can put it somewhere
> stable and ask for -next inclusion, but that seems like overkill for a
> single patch.
I'd be happy to take the arm64 part, but it doesn't feel right for mm/*
changes (or changes to other archs) to go via our tree.
I'm not sure what the best approach is if you want to send this via a single
tree. Maybe you could ask akpm nicely?
Will
_______________________________________________
Linuxppc-dev mailing list
Linuxppc-dev@lists.ozlabs.org
https://lists.ozlabs.org/listinfo/linuxppc-dev
WARNING: multiple messages have this Message-ID (diff)
From: Will Deacon <will.deacon@arm.com>
To: Andy Lutomirski <luto@amacapital.net>
Cc: "linux-ia64@vger.kernel.org" <linux-ia64@vger.kernel.org>,
"linux-sh@vger.kernel.org" <linux-sh@vger.kernel.org>,
Catalin Marinas <Catalin.Marinas@arm.com>,
Heiko Carstens <heiko.carstens@de.ibm.com>,
"linux-mm@kvack.org" <linux-mm@kvack.org>,
Paul Mackerras <paulus@samba.org>,
"H. Peter Anvin" <hpa@zytor.com>,
linux-arch <linux-arch@vger.kernel.org>,
"linux-s390@vger.kernel.org" <linux-s390@vger.kernel.org>,
Richard Weinberger <richard@nod.at>, X86 ML <x86@kernel.org>,
Ingo Molnar <mingo@redhat.com>, Fenghua Yu <fenghua.yu@intel.com>,
"user-mode-linux-devel@lists.sourceforge.net"
<user-mode-linux-devel@lists.sourceforge.net>,
Jeff Dike <jdike@addtoit.com>,
Chris Metcalf <cmetcalf@tilera.com>,
Thomas Gleixner <tglx@linutronix.de>,
"linux-arm-kernel@lists.infradead.org"
<linux-arm-kernel@lists.infradead.org>,
Tony Luck <tony.luck@intel.com>,
Nathan Lynch <Nathan_Lynch@mentor.com>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
Martin Schwidefsky <schwidefsky@de.ibm.com>,
"linux390@de.ibm.com" <linux390@de.ibm.com>,
"linuxppc-dev@lists.ozlabs.org" <linuxppc-dev@lists.ozlabs.org>
Subject: Re: [PATCH v3] arm64, ia64, ppc, s390, sh, tile, um, x86, mm: Remove default gate area
Date: Fri, 18 Jul 2014 11:14:16 +0100 [thread overview]
Message-ID: <20140718101416.GB1818@arm.com> (raw)
In-Reply-To: <CALCETrXG6nL4K=Er+kv5-CXBDVa0TLg9yR6iePnMyE2ufXgKkw@mail.gmail.com>
On Tue, Jul 15, 2014 at 03:47:26PM +0100, Andy Lutomirski wrote:
> On Sun, Jul 13, 2014 at 1:01 PM, Andy Lutomirski <luto@amacapital.net> wrote:
> > The core mm code will provide a default gate area based on
> > FIXADDR_USER_START and FIXADDR_USER_END if
> > !defined(__HAVE_ARCH_GATE_AREA) && defined(AT_SYSINFO_EHDR).
> >
> > This default is only useful for ia64. arm64, ppc, s390, sh, tile,
> > 64-bit UML, and x86_32 have their own code just to disable it. arm,
> > 32-bit UML, and x86_64 have gate areas, but they have their own
> > implementations.
> >
> > This gets rid of the default and moves the code into ia64.
> >
> > This should save some code on architectures without a gate area: it's
> > now possible to inline the gate_area functions in the default case.
>
> Can one of you pull this somewhere? Otherwise I can put it somewhere
> stable and ask for -next inclusion, but that seems like overkill for a
> single patch.
I'd be happy to take the arm64 part, but it doesn't feel right for mm/*
changes (or changes to other archs) to go via our tree.
I'm not sure what the best approach is if you want to send this via a single
tree. Maybe you could ask akpm nicely?
Will
WARNING: multiple messages have this Message-ID (diff)
From: will.deacon@arm.com (Will Deacon)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH v3] arm64, ia64, ppc, s390, sh, tile, um, x86, mm: Remove default gate area
Date: Fri, 18 Jul 2014 11:14:16 +0100 [thread overview]
Message-ID: <20140718101416.GB1818@arm.com> (raw)
In-Reply-To: <CALCETrXG6nL4K=Er+kv5-CXBDVa0TLg9yR6iePnMyE2ufXgKkw@mail.gmail.com>
On Tue, Jul 15, 2014 at 03:47:26PM +0100, Andy Lutomirski wrote:
> On Sun, Jul 13, 2014 at 1:01 PM, Andy Lutomirski <luto@amacapital.net> wrote:
> > The core mm code will provide a default gate area based on
> > FIXADDR_USER_START and FIXADDR_USER_END if
> > !defined(__HAVE_ARCH_GATE_AREA) && defined(AT_SYSINFO_EHDR).
> >
> > This default is only useful for ia64. arm64, ppc, s390, sh, tile,
> > 64-bit UML, and x86_32 have their own code just to disable it. arm,
> > 32-bit UML, and x86_64 have gate areas, but they have their own
> > implementations.
> >
> > This gets rid of the default and moves the code into ia64.
> >
> > This should save some code on architectures without a gate area: it's
> > now possible to inline the gate_area functions in the default case.
>
> Can one of you pull this somewhere? Otherwise I can put it somewhere
> stable and ask for -next inclusion, but that seems like overkill for a
> single patch.
I'd be happy to take the arm64 part, but it doesn't feel right for mm/*
changes (or changes to other archs) to go via our tree.
I'm not sure what the best approach is if you want to send this via a single
tree. Maybe you could ask akpm nicely?
Will
WARNING: multiple messages have this Message-ID (diff)
From: Will Deacon <will.deacon@arm.com>
To: Andy Lutomirski <luto@amacapital.net>
Cc: Catalin Marinas <Catalin.Marinas@arm.com>,
Tony Luck <tony.luck@intel.com>,
Fenghua Yu <fenghua.yu@intel.com>,
Benjamin Herrenschmidt <benh@kernel.crashing.org>,
Paul Mackerras <paulus@samba.org>,
Martin Schwidefsky <schwidefsky@de.ibm.com>,
Heiko Carstens <heiko.carstens@de.ibm.com>,
"linux390@de.ibm.com" <linux390@de.ibm.com>,
Chris Metcalf <cmetcalf@tilera.com>,
Jeff Dike <jdike@addtoit.com>,
Richard Weinberger <richard@nod.at>,
Thomas Gleixner <tglx@linutronix.de>,
Ingo Molnar <mingo@redhat.com>, "H. Peter Anvin" <hpa@zytor.com>,
Nathan Lynch <Nathan_Lynch@mentor.com>, X86 ML <x86@kernel.org>,
linux-arch <linux-arch@vger.kernel.org>,
"linux-arm-kernel@lists.infradead.org"
<linux-arm-kernel@lists.infradead.org>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
"linux-ia64@vger.kernel.org" <linux-ia64@vger.kernel.org>,
"linuxppc-dev@lists.ozlabs.org" <linuxppc-dev@lists.ozlabs.org>,
"linux-s390@vger.kernel.org" <linux-s390@vger.kernel.org>,
"linux-sh@vger.kernel.org" <linux-sh@vger.kernel.org>,
"user-mode-linux-devel@lists.sourceforge.net"
<user-mode-linux-devel@lists.sourceforge.net>,
"linux-mm@kvack.org" <linux-mm@kvack.org>
Subject: Re: [PATCH v3] arm64,ia64,ppc,s390,sh,tile,um,x86,mm: Remove default gate area
Date: Fri, 18 Jul 2014 11:14:16 +0100 [thread overview]
Message-ID: <20140718101416.GB1818@arm.com> (raw)
In-Reply-To: <CALCETrXG6nL4K=Er+kv5-CXBDVa0TLg9yR6iePnMyE2ufXgKkw@mail.gmail.com>
On Tue, Jul 15, 2014 at 03:47:26PM +0100, Andy Lutomirski wrote:
> On Sun, Jul 13, 2014 at 1:01 PM, Andy Lutomirski <luto@amacapital.net> wrote:
> > The core mm code will provide a default gate area based on
> > FIXADDR_USER_START and FIXADDR_USER_END if
> > !defined(__HAVE_ARCH_GATE_AREA) && defined(AT_SYSINFO_EHDR).
> >
> > This default is only useful for ia64. arm64, ppc, s390, sh, tile,
> > 64-bit UML, and x86_32 have their own code just to disable it. arm,
> > 32-bit UML, and x86_64 have gate areas, but they have their own
> > implementations.
> >
> > This gets rid of the default and moves the code into ia64.
> >
> > This should save some code on architectures without a gate area: it's
> > now possible to inline the gate_area functions in the default case.
>
> Can one of you pull this somewhere? Otherwise I can put it somewhere
> stable and ask for -next inclusion, but that seems like overkill for a
> single patch.
I'd be happy to take the arm64 part, but it doesn't feel right for mm/*
changes (or changes to other archs) to go via our tree.
I'm not sure what the best approach is if you want to send this via a single
tree. Maybe you could ask akpm nicely?
Will
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next prev parent reply other threads:[~2014-07-18 10:14 UTC|newest]
Thread overview: 37+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-07-13 20:01 [PATCH v3] arm64,ia64,ppc,s390,sh,tile,um,x86,mm: Remove default gate area Andy Lutomirski
2014-07-13 20:01 ` Andy Lutomirski
2014-07-13 20:01 ` Andy Lutomirski
2014-07-13 20:01 ` [PATCH v3] arm64, ia64, ppc, s390, sh, tile, um, x86, mm: " Andy Lutomirski
2014-07-13 20:01 ` Andy Lutomirski
2014-07-13 20:01 ` [PATCH v3] arm64,ia64,ppc,s390,sh,tile,um,x86,mm: " Andy Lutomirski
2014-07-13 20:01 ` Andy Lutomirski
2014-07-13 20:01 ` Andy Lutomirski
2014-07-15 14:47 ` Andy Lutomirski
2014-07-15 14:47 ` Andy Lutomirski
2014-07-15 14:47 ` [PATCH v3] arm64, ia64, ppc, s390, sh, tile, um, x86, mm: " Andy Lutomirski
2014-07-15 14:47 ` Andy Lutomirski
2014-07-15 14:47 ` Andy Lutomirski
2014-07-18 10:14 ` Will Deacon [this message]
2014-07-18 10:14 ` [PATCH v3] arm64,ia64,ppc,s390,sh,tile,um,x86,mm: " Will Deacon
2014-07-18 10:14 ` [PATCH v3] arm64, ia64, ppc, s390, sh, tile, um, x86, mm: " Will Deacon
2014-07-18 10:14 ` Will Deacon
2014-07-18 10:14 ` Will Deacon
2014-07-18 10:20 ` [PATCH v3] arm64,ia64,ppc,s390,sh,tile,um,x86,mm: " Richard Weinberger
2014-07-18 10:20 ` Richard Weinberger
2014-07-18 10:20 ` [PATCH v3] arm64, ia64, ppc, s390, sh, tile, um, x86, mm: " Richard Weinberger
2014-07-18 10:20 ` Richard Weinberger
2014-07-18 10:20 ` Richard Weinberger
2014-07-18 16:53 ` [PATCH v3] arm64,ia64,ppc,s390,sh,tile,um,x86,mm: " Andy Lutomirski
2014-07-18 16:53 ` Andy Lutomirski
2014-07-18 16:53 ` [PATCH v3] arm64, ia64, ppc, s390, sh, tile, um, x86, mm: " Andy Lutomirski
2014-07-18 16:53 ` [uml-devel] " Andy Lutomirski
2014-07-18 17:28 ` [PATCH v3] arm64,ia64,ppc,s390,sh,tile,um,x86,mm: " Nathan Lynch
2014-07-18 17:28 ` Nathan Lynch
2014-07-18 17:28 ` [PATCH v3] arm64, ia64, ppc, s390, sh, tile, um, x86, mm: " Nathan Lynch
2014-07-18 17:28 ` Nathan Lynch
2014-07-18 17:28 ` Nathan Lynch
2014-07-18 18:36 ` [PATCH v3] arm64,ia64,ppc,s390,sh,tile,um,x86,mm: " H. Peter Anvin
2014-07-18 18:36 ` H. Peter Anvin
2014-07-18 18:36 ` [PATCH v3] arm64, ia64, ppc, s390, sh, tile, um, x86, mm: " H. Peter Anvin
2014-07-18 18:36 ` H. Peter Anvin
2014-07-18 18:36 ` H. Peter Anvin
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