[RFC PATCH v6 09/10] fadump: Invalidate the fadump registration during machine shutdown.

From: Mahesh J Salgaonkar <mahesh@linux.vnet.ibm.com>
To: linuxppc-dev <linuxppc-dev@ozlabs.org>,
	Linux Kernel <linux-kernel@vger.kernel.org>,
	Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Anton Blanchard <anton@samba.org>,
	Amerigo Wang <amwang@redhat.com>,
	Kexec-ml <kexec@lists.infradead.org>,
	Milton Miller <miltonm@bga.com>,
	Randy Dunlap <rdunlap@xenotime.net>,
	"Eric W. Biederman" <ebiederm@xmission.com>,
	Vivek Goyal <vgoyal@redhat.com>
Subject: [RFC PATCH v6 09/10] fadump: Invalidate the fadump registration during machine shutdown.
Date: Sat, 10 Dec 2011 12:21:22 +0530	[thread overview]
Message-ID: <20111210065122.10195.980.stgit@mars.in.ibm.com> (raw)
In-Reply-To: <20111210064301.10195.3344.stgit@mars.in.ibm.com>

From: Mahesh Salgaonkar <mahesh@linux.vnet.ibm.com>

If dump is active during system reboot, shutdown or halt then invalidate
the fadump registration as it does not get invalidated automatically.

Signed-off-by: Mahesh Salgaonkar <mahesh@linux.vnet.ibm.com>
---
 arch/powerpc/kernel/setup-common.c |    8 ++++++++
 1 files changed, 8 insertions(+), 0 deletions(-)

diff --git a/arch/powerpc/kernel/setup-common.c b/arch/powerpc/kernel/setup-common.c
index 4e62a56..b0ebdea 100644
--- a/arch/powerpc/kernel/setup-common.c
+++ b/arch/powerpc/kernel/setup-common.c
@@ -110,6 +110,14 @@ EXPORT_SYMBOL(ppc_do_canonicalize_irqs);
 /* also used by kexec */
 void machine_shutdown(void)
 {
+#ifdef CONFIG_FA_DUMP
+	/*
+	 * if fadump is active, cleanup the fadump registration before we
+	 * shutdown.
+	 */
+	fadump_cleanup();
+#endif
+
 	if (ppc_md.machine_shutdown)
 		ppc_md.machine_shutdown();
 }
