From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
To: Hugh Dickins <hughd@google.com>
Cc: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>,
LKML <linux-kernel@vger.kernel.org>,
linux-mm <linux-mm@kvack.org>,
Andrew Morton <akpm@linux-foundation.org>,
Dave Hansen <dave@linux.vnet.ibm.com>,
KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>,
Paul Mundt <lethal@linux-sh.org>,
Russell King <linux@arm.linux.org.uk>
Subject: Re: mm: convert vma->vm_flags to 64bit
Date: Mon, 18 Apr 2011 11:45:39 +1000 [thread overview]
Message-ID: <1303091139.28876.152.camel@pasglop> (raw)
In-Reply-To: <alpine.LSU.2.00.1104171649350.21405@sister.anvils>
On Sun, 2011-04-17 at 17:26 -0700, Hugh Dickins wrote:
> I am surprised that
> #define VM_EXEC 0x00000004ULL
> does not cause trouble for arch/arm/kernel/asm-offsets.c,
> but you tried cross-building it which I never did.
It would probably cause trouble for a big endian ARM no ? In that case
it should offset the load by 4.
> Does your later addition of __nocast on vm_flags not make trouble
> for the unsigned long casts in arch/arm/include/asm/cacheflush.h?
> (And if it does not, then just what does __nocast do?)
>
> Thanks for seeing this through,
Cheers,
Ben.
WARNING: multiple messages have this Message-ID (diff)
From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
To: Hugh Dickins <hughd@google.com>
Cc: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>,
LKML <linux-kernel@vger.kernel.org>,
linux-mm <linux-mm@kvack.org>,
Andrew Morton <akpm@linux-foundation.org>,
Dave Hansen <dave@linux.vnet.ibm.com>,
KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>,
Paul Mundt <lethal@linux-sh.org>,
Russell King <linux@arm.linux.org.uk>
Subject: Re: mm: convert vma->vm_flags to 64bit
Date: Mon, 18 Apr 2011 11:45:39 +1000 [thread overview]
Message-ID: <1303091139.28876.152.camel@pasglop> (raw)
In-Reply-To: <alpine.LSU.2.00.1104171649350.21405@sister.anvils>
On Sun, 2011-04-17 at 17:26 -0700, Hugh Dickins wrote:
> I am surprised that
> #define VM_EXEC 0x00000004ULL
> does not cause trouble for arch/arm/kernel/asm-offsets.c,
> but you tried cross-building it which I never did.
It would probably cause trouble for a big endian ARM no ? In that case
it should offset the load by 4.
> Does your later addition of __nocast on vm_flags not make trouble
> for the unsigned long casts in arch/arm/include/asm/cacheflush.h?
> (And if it does not, then just what does __nocast do?)
>
> Thanks for seeing this through,
Cheers,
Ben.
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next prev parent reply other threads:[~2011-04-18 1:46 UTC|newest]
Thread overview: 64+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-04-12 6:10 mm: convert vma->vm_flags to 64bit KOSAKI Motohiro
2011-04-12 6:10 ` KOSAKI Motohiro
2011-04-12 6:33 ` Andrew Morton
2011-04-12 6:33 ` Andrew Morton
2011-04-12 7:12 ` KOSAKI Motohiro
2011-04-12 7:12 ` KOSAKI Motohiro
2011-04-12 11:06 ` Alexey Dobriyan
2011-04-12 11:06 ` Alexey Dobriyan
2011-04-12 11:11 ` Alexey Dobriyan
2011-04-12 11:11 ` Alexey Dobriyan
2011-04-12 22:07 ` Benjamin Herrenschmidt
2011-04-12 22:07 ` Benjamin Herrenschmidt
2011-04-13 0:13 ` KOSAKI Motohiro
2011-04-13 0:13 ` KOSAKI Motohiro
2011-04-13 6:44 ` Alexey Dobriyan
2011-04-13 6:44 ` Alexey Dobriyan
2011-04-13 7:00 ` Benjamin Herrenschmidt
2011-04-13 7:00 ` Benjamin Herrenschmidt
2011-04-13 7:29 ` Russell King - ARM Linux
2011-04-13 7:29 ` Russell King - ARM Linux
2011-04-13 8:56 ` Benjamin Herrenschmidt
2011-04-13 8:56 ` Benjamin Herrenschmidt
2011-04-13 8:34 ` KOSAKI Motohiro
2011-04-13 8:34 ` KOSAKI Motohiro
2011-04-13 7:04 ` KOSAKI Motohiro
2011-04-13 7:04 ` KOSAKI Motohiro
2011-04-12 23:41 ` KOSAKI Motohiro
2011-04-12 23:41 ` KOSAKI Motohiro
2011-04-13 2:19 ` [PATCH 1/3] mm: add __nocast attribute to vm_flags KOSAKI Motohiro
2011-04-13 2:19 ` KOSAKI Motohiro
2011-04-13 2:20 ` [PATCH 2/3] fremap: convert vm_flags to unsigned long long KOSAKI Motohiro
2011-04-13 2:20 ` KOSAKI Motohiro
2011-04-13 2:21 ` [PATCH 3/3] procfs: " KOSAKI Motohiro
2011-04-13 2:21 ` KOSAKI Motohiro
2011-04-12 20:30 ` mm: convert vma->vm_flags to 64bit Russell King - ARM Linux
2011-04-12 20:30 ` Russell King - ARM Linux
2011-04-18 0:26 ` Hugh Dickins
2011-04-18 0:26 ` Hugh Dickins
2011-04-18 1:21 ` KOSAKI Motohiro
2011-04-18 1:21 ` KOSAKI Motohiro
2011-04-18 1:45 ` Benjamin Herrenschmidt [this message]
2011-04-18 1:45 ` Benjamin Herrenschmidt
2011-04-18 3:34 ` KOSAKI Motohiro
2011-04-18 3:34 ` KOSAKI Motohiro
2011-11-10 4:09 ` Nai Xia
2011-11-10 4:09 ` Nai Xia
2011-11-10 4:49 ` David Rientjes
2011-11-10 4:49 ` David Rientjes
2011-11-11 8:52 ` Russell King - ARM Linux
2011-11-11 8:52 ` Russell King - ARM Linux
2011-11-10 17:22 ` KOSAKI Motohiro
2011-11-10 17:22 ` KOSAKI Motohiro
2011-11-10 21:12 ` Benjamin Herrenschmidt
2011-11-10 21:12 ` Benjamin Herrenschmidt
2011-11-10 21:49 ` KOSAKI Motohiro
2011-11-10 21:49 ` KOSAKI Motohiro
2011-11-11 8:42 ` Russell King - ARM Linux
2011-11-11 8:42 ` Russell King - ARM Linux
2011-11-11 2:09 ` Hugh Dickins
2011-11-11 2:09 ` Hugh Dickins
2011-11-11 4:31 ` Benjamin Herrenschmidt
2011-11-11 4:31 ` Benjamin Herrenschmidt
2011-11-11 8:38 ` Nai Xia
2011-11-11 8:38 ` Nai Xia
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