From: Arnd Bergmann <arnd@arndb.de>
To: David Rientjes <rientjes@google.com>
Cc: Andrew Morton <akpm@linux-foundation.org>,
ebmunson@us.ibm.com, linux-kernel@vger.kernel.org,
linux-mm@kvack.org, linux-man@vger.kernel.org,
mtk.manpages@gmail.com, randy.dunlap@oracle.com, rth@twiddle.net,
ink@jurassic.park.msu.ru, Tony Luck <tony.luck@intel.com>,
Fenghua Yu <fenghua.yu@intel.com>,
linux-ia64@vger.kernel.org
Subject: Re: [PATCH] remove duplicate asm/mman.h files
Date: Mon, 21 Sep 2009 08:31:25 +0000 [thread overview]
Message-ID: <200909211031.25369.arnd@arndb.de> (raw)
In-Reply-To: <alpine.DEB.1.00.0909181236190.27556@chino.kir.corp.google.com>
On Friday 18 September 2009, David Rientjes wrote:
> On Fri, 18 Sep 2009, Arnd Bergmann wrote:
>
> > -#define MCL_CURRENT 1 /* lock all current mappings */
> > -#define MCL_FUTURE 2 /* lock all future mappings */
> > +#define MAP_GROWSUP 0x0200 /* register stack-like segment */
> >
> > #ifdef __KERNEL__
> > #ifndef __ASSEMBLY__
>
> ia64 doesn't use MAP_GROWSUP, so it's probably not necessary to carry it
> along with your cleanup.
ia64 is the only architecture defining it, nobody uses it in the kernel.
If the ia64 maintainers want to remove it in a separate patch, that
would probably be a good idea.
I tried not to change the ABI in any way in my patch, and there is
a theoretical possibility that some user space program on ia64 currently
depends on that definition.
Arnd <><
WARNING: multiple messages have this Message-ID (diff)
From: Arnd Bergmann <arnd@arndb.de>
To: David Rientjes <rientjes@google.com>
Cc: Andrew Morton <akpm@linux-foundation.org>,
ebmunson@us.ibm.com, linux-kernel@vger.kernel.org,
linux-mm@kvack.org, linux-man@vger.kernel.org,
mtk.manpages@gmail.com, randy.dunlap@oracle.com, rth@twiddle.net,
ink@jurassic.park.msu.ru, Tony Luck <tony.luck@intel.com>,
Fenghua Yu <fenghua.yu@intel.com>,
linux-ia64@vger.kernel.org
Subject: Re: [PATCH] remove duplicate asm/mman.h files
Date: Mon, 21 Sep 2009 10:31:25 +0200 [thread overview]
Message-ID: <200909211031.25369.arnd@arndb.de> (raw)
In-Reply-To: <alpine.DEB.1.00.0909181236190.27556@chino.kir.corp.google.com>
On Friday 18 September 2009, David Rientjes wrote:
> On Fri, 18 Sep 2009, Arnd Bergmann wrote:
>
> > -#define MCL_CURRENT 1 /* lock all current mappings */
> > -#define MCL_FUTURE 2 /* lock all future mappings */
> > +#define MAP_GROWSUP 0x0200 /* register stack-like segment */
> >
> > #ifdef __KERNEL__
> > #ifndef __ASSEMBLY__
>
> ia64 doesn't use MAP_GROWSUP, so it's probably not necessary to carry it
> along with your cleanup.
ia64 is the only architecture defining it, nobody uses it in the kernel.
If the ia64 maintainers want to remove it in a separate patch, that
would probably be a good idea.
I tried not to change the ABI in any way in my patch, and there is
a theoretical possibility that some user space program on ia64 currently
depends on that definition.
Arnd <><
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WARNING: multiple messages have this Message-ID (diff)
From: Arnd Bergmann <arnd@arndb.de>
To: David Rientjes <rientjes@google.com>
Cc: Andrew Morton <akpm@linux-foundation.org>,
ebmunson@us.ibm.com, linux-kernel@vger.kernel.org,
linux-mm@kvack.org, linux-man@vger.kernel.org,
mtk.manpages@gmail.com, randy.dunlap@oracle.com, rth@twiddle.net,
ink@jurassic.park.msu.ru, Tony Luck <tony.luck@intel.com>,
Fenghua Yu <fenghua.yu@intel.com>,
linux-ia64@vger.kernel.org
Subject: Re: [PATCH] remove duplicate asm/mman.h files
Date: Mon, 21 Sep 2009 10:31:25 +0200 [thread overview]
Message-ID: <200909211031.25369.arnd@arndb.de> (raw)
In-Reply-To: <alpine.DEB.1.00.0909181236190.27556@chino.kir.corp.google.com>
On Friday 18 September 2009, David Rientjes wrote:
> On Fri, 18 Sep 2009, Arnd Bergmann wrote:
>
> > -#define MCL_CURRENT 1 /* lock all current mappings */
> > -#define MCL_FUTURE 2 /* lock all future mappings */
> > +#define MAP_GROWSUP 0x0200 /* register stack-like segment */
> >
> > #ifdef __KERNEL__
> > #ifndef __ASSEMBLY__
>
> ia64 doesn't use MAP_GROWSUP, so it's probably not necessary to carry it
> along with your cleanup.
ia64 is the only architecture defining it, nobody uses it in the kernel.
If the ia64 maintainers want to remove it in a separate patch, that
would probably be a good idea.
I tried not to change the ABI in any way in my patch, and there is
a theoretical possibility that some user space program on ia64 currently
depends on that definition.
Arnd <><
next prev parent reply other threads:[~2009-09-21 8:31 UTC|newest]
Thread overview: 48+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-08-25 11:14 [PATCH 0/3] Add pseudo-anonymous huge page mappings V4 Eric B Munson
2009-08-25 11:14 ` [PATCH 1/3] hugetlbfs: Allow the creation of files suitable for MAP_PRIVATE on the vfs internal mount Eric B Munson
2009-08-26 19:34 ` David Rientjes
2009-08-26 19:34 ` David Rientjes
2009-08-25 11:14 ` [PATCH 2/3] Add MAP_HUGETLB for mmaping pseudo-anonymous huge page regions Eric B Munson
2009-09-17 22:44 ` Andrew Morton
2009-09-17 22:44 ` Andrew Morton
2009-09-17 22:44 ` Andrew Morton
2009-09-18 0:46 ` Andrew Morton
2009-09-18 0:46 ` Andrew Morton
2009-09-18 0:46 ` Andrew Morton
2009-09-18 15:19 ` [PATCH] " Arnd Bergmann
2009-09-18 15:19 ` Arnd Bergmann
[not found] ` <200909181719.47240.arnd-r2nGTMty4D4@public.gmane.org>
2009-09-18 16:48 ` [PATCH] remove duplicate asm/mman.h files Arnd Bergmann
2009-09-18 16:48 ` Arnd Bergmann
2009-09-18 16:48 ` Arnd Bergmann
[not found] ` <200909181848.42192.arnd-r2nGTMty4D4@public.gmane.org>
2009-09-18 19:37 ` David Rientjes
2009-09-18 19:37 ` David Rientjes
2009-09-18 19:37 ` David Rientjes
2009-09-21 8:31 ` Arnd Bergmann [this message]
2009-09-21 8:31 ` Arnd Bergmann
2009-09-21 8:31 ` Arnd Bergmann
2009-09-21 9:13 ` David Rientjes
2009-09-21 9:13 ` David Rientjes
2009-09-21 9:13 ` David Rientjes
2009-09-21 9:30 ` Arnd Bergmann
2009-09-21 9:30 ` Arnd Bergmann
2009-09-21 9:30 ` Arnd Bergmann
2009-09-21 12:02 ` Hugh Dickins
2009-09-21 12:02 ` Hugh Dickins
2009-09-21 12:02 ` Hugh Dickins
2009-09-21 12:02 ` Hugh Dickins
2009-09-21 22:55 ` David Rientjes
2009-09-21 22:55 ` David Rientjes
2009-09-21 22:55 ` David Rientjes
2009-09-21 23:25 ` Luck, Tony
2009-09-21 23:25 ` Luck, Tony
2009-09-21 23:25 ` Luck, Tony
2009-09-21 23:46 ` David Rientjes
2009-09-21 23:46 ` David Rientjes
2009-09-21 23:46 ` David Rientjes
2009-09-21 23:58 ` Ulrich Drepper
2009-09-21 23:58 ` Ulrich Drepper
2009-09-21 23:58 ` Ulrich Drepper
2009-09-21 23:58 ` Ulrich Drepper
2009-09-21 12:27 ` Eric B Munson
2009-09-21 12:25 ` [PATCH] Add MAP_HUGETLB for mmaping pseudo-anonymous huge page regions Eric B Munson
2009-08-25 11:14 ` [PATCH 3/3] Add MAP_HUGETLB example Eric B Munson
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