linux-kernel - Re: Linux 2.6.24-rc5 x86 architecture no longer Oopses...

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Date:	Fri, 21 Dec 2007 12:12:07 +0100
From:	Ingo Molnar <mingo@...e.hu>
To:	Andrew Morton <akpm@...ux-foundation.org>
Cc:	trond.myklebust@....uio.no, tglx@...utronix.de, mingo@...hat.com,
	hpa@...or.com, linux-kernel@...r.kernel.org
Subject: Re: Linux 2.6.24-rc5 x86 architecture no longer Oopses...


* Andrew Morton <akpm@...ux-foundation.org> wrote:

> I'd suggest that we add a local_read_flags() along with 
> local_save_flags(). Then I can merge the parts of the patch which 
> don't get destroyed by ongoing churn and then we can come in and clean 
> up the stragglers later.

ah, indeed.

like the patch below? (Only local_save_flags() should be used by drivers 
- but i stuck in the other variants as well for completeness.)

	Ingo

-------------------->
Subject: migration helpers for local_save_flags => local_read_flags rename
From: Ingo Molnar <mingo@...e.hu>

prepare for renaming of all local_save_flags variants to local_read_flags,
via migration helpers, as suggested by Andrew Morton.

Signed-off-by: Ingo Molnar <mingo@...e.hu>
---
 include/linux/irqflags.h |    9 +++++++++
 1 file changed, 9 insertions(+)

Index: linux-x86.q/include/linux/irqflags.h
===================================================================
--- linux-x86.q.orig/include/linux/irqflags.h
+++ linux-x86.q/include/linux/irqflags.h
@@ -93,4 +93,13 @@
 #define irqs_disabled_flags(flags)	raw_irqs_disabled_flags(flags)
 #endif		/* CONFIG_X86 */
 
+/*
+ * Migration helpers - the proper API is the local_read_flags API.
+ * Will go away in v2.6.26.
+ */
+#define local_save_flags		local_read_flags
+#define __local_save_flags		__local_read_flags
+#define raw_local_save_flags		raw_local_read_flags
+#define __raw_local_save_flags		__raw_local_read_flags
+
 #endif
--
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