From: Andrew Morton <akpm@linux-foundation.org>
To: Nathan Lynch <ntl@pobox.com>
Cc: Stephen Rothwell <sfr@canb.auug.org.au>,
Helge, Seetharaman <sekharan@us.ibm.com>,
Deller <deller@parisc-linux.org>,
linuxppc-dev@ozlabs.org,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
"linux-mm@kvack.org" <linux-mm@kvack.org>,
"andi@firstfloor.org" <andi@firstfloor.org>,
Chandra,
"kosaki.motohiro@jp.fujitsu.com" <kosaki.motohiro@jp.fujitsu.com>,
"mpm@selenic.com" <mpm@selenic.com>,
Olof Johansson <olof@lixom.net>,
Wu Fengguang <fengguang.wu@intel.com>,
"adobriyan@gmail.com" <adobriyan@gmail.com>
Subject: Re: [PATCH 5/5] proc: export more page flags in /proc/kpageflags
Date: Tue, 28 Apr 2009 21:50:50 -0700 [thread overview]
Message-ID: <20090428215050.67b7b4db.akpm@linux-foundation.org> (raw)
In-Reply-To: <m38wlkxe9b.fsf@pobox.com>
On Tue, 28 Apr 2009 23:41:52 -0500 Nathan Lynch <ntl@pobox.com> wrote:
> > CONFIG_DEBUG_KERNEL being enabled in distro kernels effectively means
> >
> > #ifdef CONFIG_DEBUG_KERNEL == #if 1
> >
> > as the following patch demos. Now it becomes obviously silly.
>
> Sure, #if 1 is usually silly. But if the point is that DEBUG_KERNEL is
> not supposed to directly affect code generation, then I see two options
> for powerpc:
>
> - remove the #ifdef CONFIG_DEBUG_KERNEL guards from
> arch/powerpc/kernel/sysfs.c, unconditionally enabling the hid/ima
> sysfs attributes, or
>
> - define a new config symbol which governs whether those attributes are
> enabled, and make it depend on DEBUG_KERNEL
yup.
WARNING: multiple messages have this Message-ID (diff)
From: Andrew Morton <akpm@linux-foundation.org>
To: Nathan Lynch <ntl@pobox.com>
Cc: Wu Fengguang <fengguang.wu@intel.com>,
"linux-kernel\@vger.kernel.org" <linux-kernel@vger.kernel.org>,
"kosaki.motohiro\@jp.fujitsu.com"
<kosaki.motohiro@jp.fujitsu.com>,
"andi\@firstfloor.org" <andi@firstfloor.org>,
"mpm\@selenic.com" <mpm@selenic.com>,
"adobriyan\@gmail.com" <adobriyan@gmail.com>,
"linux-mm\@kvack.org" <linux-mm@kvack.org>,
Stephen Rothwell <sfr@canb.auug.org.au>,
Chandra Seetharaman <sekharan@us.ibm.com>,
Olof Johansson <olof@lixom.net>,
Helge Deller <deller@parisc-linux.org>,
linuxppc-dev@ozlabs.org
Subject: Re: [PATCH 5/5] proc: export more page flags in /proc/kpageflags
Date: Tue, 28 Apr 2009 21:50:50 -0700 [thread overview]
Message-ID: <20090428215050.67b7b4db.akpm@linux-foundation.org> (raw)
In-Reply-To: <m38wlkxe9b.fsf@pobox.com>
On Tue, 28 Apr 2009 23:41:52 -0500 Nathan Lynch <ntl@pobox.com> wrote:
> > CONFIG_DEBUG_KERNEL being enabled in distro kernels effectively means
> >
> > #ifdef CONFIG_DEBUG_KERNEL == #if 1
> >
> > as the following patch demos. Now it becomes obviously silly.
>
> Sure, #if 1 is usually silly. But if the point is that DEBUG_KERNEL is
> not supposed to directly affect code generation, then I see two options
> for powerpc:
>
> - remove the #ifdef CONFIG_DEBUG_KERNEL guards from
> arch/powerpc/kernel/sysfs.c, unconditionally enabling the hid/ima
> sysfs attributes, or
>
> - define a new config symbol which governs whether those attributes are
> enabled, and make it depend on DEBUG_KERNEL
yup.
WARNING: multiple messages have this Message-ID (diff)
From: Andrew Morton <akpm@linux-foundation.org>
To: Nathan Lynch <ntl@pobox.com>
Cc: Wu Fengguang <fengguang.wu@intel.com>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
"kosaki.motohiro@jp.fujitsu.com" <kosaki.motohiro@jp.fujitsu.com>,
"andi@firstfloor.org" <andi@firstfloor.org>,
"mpm@selenic.com" <mpm@selenic.com>,
"adobriyan@gmail.com" <adobriyan@gmail.com>,
"linux-mm@kvack.org" <linux-mm@kvack.org>,
Stephen Rothwell <sfr@canb.auug.org.au>,
Chandra Seetharaman <sekharan@us.ibm.com>,
Olof Johansson <olof@lixom.net>,
Helge Deller <deller@parisc-linux.org>,
linuxppc-dev@ozlabs.org
Subject: Re: [PATCH 5/5] proc: export more page flags in /proc/kpageflags
Date: Tue, 28 Apr 2009 21:50:50 -0700 [thread overview]
Message-ID: <20090428215050.67b7b4db.akpm@linux-foundation.org> (raw)
In-Reply-To: <m38wlkxe9b.fsf@pobox.com>
On Tue, 28 Apr 2009 23:41:52 -0500 Nathan Lynch <ntl@pobox.com> wrote:
> > CONFIG_DEBUG_KERNEL being enabled in distro kernels effectively means
> >
> > #ifdef CONFIG_DEBUG_KERNEL == #if 1
> >
> > as the following patch demos. Now it becomes obviously silly.
>
> Sure, #if 1 is usually silly. But if the point is that DEBUG_KERNEL is
> not supposed to directly affect code generation, then I see two options
> for powerpc:
>
> - remove the #ifdef CONFIG_DEBUG_KERNEL guards from
> arch/powerpc/kernel/sysfs.c, unconditionally enabling the hid/ima
> sysfs attributes, or
>
> - define a new config symbol which governs whether those attributes are
> enabled, and make it depend on DEBUG_KERNEL
yup.
--
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next prev parent reply other threads:[~2009-04-29 4:58 UTC|newest]
Thread overview: 137+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-04-28 1:09 [PATCH 0/5] proc: export more page flags in /proc/kpageflags (take 4) Wu Fengguang
2009-04-28 1:09 ` Wu Fengguang
2009-04-28 1:09 ` [PATCH 1/5] pagemap: document clarifications Wu Fengguang
2009-04-28 1:09 ` Wu Fengguang
2009-04-28 7:11 ` Tommi Rantala
2009-04-28 7:11 ` Tommi Rantala
2009-04-28 1:09 ` [PATCH 2/5] pagemap: documentation 9 more exported page flags Wu Fengguang
2009-04-28 1:09 ` Wu Fengguang
2009-04-28 1:09 ` [PATCH 3/5] mm: introduce PageHuge() for testing huge/gigantic pages Wu Fengguang
2009-04-28 1:09 ` Wu Fengguang
2009-04-28 1:09 ` [PATCH 4/5] proc: kpagecount/kpageflags code cleanup Wu Fengguang
2009-04-28 1:09 ` Wu Fengguang
2009-04-28 1:09 ` [PATCH 5/5] proc: export more page flags in /proc/kpageflags Wu Fengguang
2009-04-28 1:09 ` Wu Fengguang
2009-04-28 6:55 ` Ingo Molnar
2009-04-28 6:55 ` Ingo Molnar
2009-04-28 7:40 ` Andi Kleen
2009-04-28 7:40 ` Andi Kleen
2009-04-28 9:04 ` Pekka Enberg
2009-04-28 9:04 ` Pekka Enberg
2009-04-28 9:10 ` Andi Kleen
2009-04-28 9:10 ` Andi Kleen
2009-04-28 9:15 ` Pekka Enberg
2009-04-28 9:15 ` Pekka Enberg
2009-04-28 9:15 ` Ingo Molnar
2009-04-28 9:15 ` Ingo Molnar
2009-04-28 9:19 ` Pekka Enberg
2009-04-28 9:19 ` Pekka Enberg
2009-04-28 9:25 ` Pekka Enberg
2009-04-28 9:25 ` Pekka Enberg
2009-04-28 9:36 ` Wu Fengguang
2009-04-28 9:36 ` Wu Fengguang
2009-04-28 9:36 ` Ingo Molnar
2009-04-28 9:36 ` Ingo Molnar
2009-04-28 9:57 ` Pekka Enberg
2009-04-28 9:57 ` Pekka Enberg
2009-04-28 10:10 ` KOSAKI Motohiro
2009-04-28 10:10 ` KOSAKI Motohiro
2009-04-28 10:21 ` Pekka Enberg
2009-04-28 10:21 ` Pekka Enberg
2009-04-28 10:56 ` Ingo Molnar
2009-04-28 10:56 ` Ingo Molnar
2009-04-28 11:09 ` KOSAKI Motohiro
2009-04-28 11:09 ` KOSAKI Motohiro
2009-04-28 12:42 ` Ingo Molnar
2009-04-28 12:42 ` Ingo Molnar
2009-04-28 11:03 ` Ingo Molnar
2009-04-28 11:03 ` Ingo Molnar
2009-04-28 17:42 ` Matt Mackall
2009-04-28 17:42 ` Matt Mackall
2009-04-28 9:29 ` Ingo Molnar
2009-04-28 9:29 ` Ingo Molnar
2009-04-28 9:34 ` KOSAKI Motohiro
2009-04-28 9:34 ` KOSAKI Motohiro
2009-04-28 9:38 ` Ingo Molnar
2009-04-28 9:38 ` Ingo Molnar
2009-04-28 9:55 ` Wu Fengguang
2009-04-28 9:55 ` Wu Fengguang
2009-04-28 10:11 ` KOSAKI Motohiro
2009-04-28 10:11 ` KOSAKI Motohiro
2009-04-28 11:05 ` Ingo Molnar
2009-04-28 11:05 ` Ingo Molnar
2009-04-28 11:36 ` Wu Fengguang
2009-04-28 11:36 ` Wu Fengguang
2009-04-28 12:17 ` [rfc] object collection tracing (was: [PATCH 5/5] proc: export more page flags in /proc/kpageflags) Ingo Molnar
2009-04-28 12:17 ` Ingo Molnar
2009-04-28 13:31 ` Wu Fengguang
2009-04-28 13:31 ` Wu Fengguang
2009-05-12 13:01 ` Frederic Weisbecker
2009-05-12 13:01 ` Frederic Weisbecker
2009-05-17 13:36 ` Wu Fengguang
2009-05-17 13:55 ` Frederic Weisbecker
2009-05-17 13:55 ` Frederic Weisbecker
2009-05-17 14:12 ` Wu Fengguang
2009-05-17 14:12 ` Wu Fengguang
2009-05-18 11:44 ` KOSAKI Motohiro
2009-05-18 11:44 ` KOSAKI Motohiro
2009-05-18 11:47 ` Wu Fengguang
2009-05-18 11:47 ` Wu Fengguang
2009-04-28 10:18 ` [PATCH 5/5] proc: export more page flags in /proc/kpageflags Andi Kleen
2009-04-28 10:18 ` Andi Kleen
2009-04-28 8:33 ` Wu Fengguang
2009-04-28 8:33 ` Wu Fengguang
2009-04-28 9:24 ` Ingo Molnar
2009-04-28 9:24 ` Ingo Molnar
2009-04-28 18:11 ` Tony Luck
2009-04-28 18:11 ` Tony Luck
2009-04-28 18:34 ` Matt Mackall
2009-04-28 18:34 ` Matt Mackall
2009-04-28 20:47 ` Tony Luck
2009-04-28 20:47 ` Tony Luck
2009-04-28 20:54 ` Andi Kleen
2009-04-28 20:54 ` Andi Kleen
2009-04-28 20:59 ` Matt Mackall
2009-04-28 20:59 ` Matt Mackall
2009-04-28 21:17 ` Andrew Morton
2009-04-28 21:17 ` Andrew Morton
2009-04-28 21:49 ` Matt Mackall
2009-04-28 21:49 ` Matt Mackall
2009-04-29 0:02 ` Robin Holt
2009-04-29 0:02 ` Robin Holt
2009-04-28 17:49 ` Matt Mackall
2009-04-28 17:49 ` Matt Mackall
2009-04-29 8:05 ` Wu Fengguang
2009-04-29 8:05 ` Wu Fengguang
2009-04-29 19:13 ` Matt Mackall
2009-04-29 19:13 ` Matt Mackall
2009-04-30 1:00 ` Wu Fengguang
2009-04-30 1:00 ` Wu Fengguang
2009-04-28 21:32 ` Andrew Morton
2009-04-28 21:32 ` Andrew Morton
2009-04-28 22:46 ` Matt Mackall
2009-04-28 22:46 ` Matt Mackall
2009-04-28 23:02 ` Andrew Morton
2009-04-28 23:02 ` Andrew Morton
2009-04-28 23:31 ` Matt Mackall
2009-04-28 23:31 ` Matt Mackall
2009-04-28 23:42 ` Andrew Morton
2009-04-28 23:42 ` Andrew Morton
2009-04-28 23:55 ` Matt Mackall
2009-04-28 23:55 ` Matt Mackall
2009-04-29 3:33 ` Wu Fengguang
2009-04-29 3:33 ` Wu Fengguang
2009-04-29 2:38 ` Wu Fengguang
2009-04-29 2:38 ` Wu Fengguang
2009-04-29 2:55 ` Andrew Morton
2009-04-29 2:55 ` Andrew Morton
2009-04-29 3:48 ` Wu Fengguang
2009-04-29 3:48 ` Wu Fengguang
2009-04-29 5:09 ` Wu Fengguang
2009-04-29 5:09 ` Wu Fengguang
2009-04-29 4:41 ` Nathan Lynch
2009-04-29 4:41 ` Nathan Lynch
2009-04-29 4:41 ` Nathan Lynch
2009-04-29 4:50 ` Andrew Morton [this message]
2009-04-29 4:50 ` Andrew Morton
2009-04-29 4:50 ` Andrew Morton
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