linux-kernel - [Patch 7/8] powerpc: implement crashkernel=auto

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Message-Id: <20090821065749.4855.3923.sendpatchset@localhost.localdomain>
Date:	Fri, 21 Aug 2009 02:55:24 -0400
From:	Amerigo Wang <amwang@...hat.com>
To:	linux-kernel@...r.kernel.org
Cc:	tony.luck@...el.com, linux-ia64@...r.kernel.org,
	Neil Horman <nhorman@...hat.com>,
	"Eric W. Biederman" <ebiederm@...ssion.com>,
	Andi Kleen <andi@...stfloor.org>, Ingo Molnar <mingo@...e.hu>,
	Amerigo Wang <amwang@...hat.com>, akpm@...ux-foundation.org,
	bernhard.walle@....de, Fenghua Yu <fenghua.yu@...el.com>,
	kamezawa.hiroyu@...fujitsu.com,
	Anton Vorontsov <avorontsov@...mvista.com>
Subject: [Patch 7/8] powerpc: implement crashkernel=auto


Since in patch 3/8 we already implement the generic part, this will
add the rest part for powerpc.

Signed-off-by: WANG Cong <amwang@...hat.com>
Cc: Anton Vorontsov <avorontsov@...mvista.com>

---

Index: linux-2.6/arch/powerpc/include/asm/kexec.h
===================================================================
--- linux-2.6.orig/arch/powerpc/include/asm/kexec.h
+++ linux-2.6/arch/powerpc/include/asm/kexec.h
@@ -39,6 +39,14 @@ typedef void (*crash_shutdown_t)(void);
 
 #ifdef CONFIG_KEXEC
 
+#ifdef CONFIG_KEXEC_AUTO_RESERVE
+#ifdef KEXEC_AUTO_RESERVED_SIZE
+#undef KEXEC_AUTO_RESERVED_SIZE
+#endif
+#define KEXEC_AUTO_RESERVED_SIZE (1ULL<<28) /* 256M */
+#include <asm-generic/kexec.h>
+#endif
+
 /*
  * This function is responsible for capturing register states if coming
  * via panic or invoking dump using sysrq-trigger.
--
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