linux-kernel - [S390] Use diag instead of ccw reipl.

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Message-ID: <20061204145222.GK32059@skybase>
Date:	Mon, 4 Dec 2006 15:52:22 +0100
From:	Martin Schwidefsky <schwidefsky@...ibm.com>
To:	linux-kernel@...r.kernel.org, holzheu@...ibm.com
Subject: [S390] Use diag instead of ccw reipl.

From: Michael Holzheu <holzheu@...ibm.com>

[S390] Use diag instead of ccw reipl.

Since the diag 308 reipl method is superior to the ccw method, we should
use it whenever it is possible. We can do that, if the user has not
specified a new reipl ccw device and the system has been ipled from
a ccw device.

Signed-off-by: Michael Holzheu <holzheu@...ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@...ibm.com>
---

 arch/s390/kernel/ipl.c |    2 ++
 1 files changed, 2 insertions(+)

diff -urpN linux-2.6/arch/s390/kernel/ipl.c linux-2.6-patched/arch/s390/kernel/ipl.c
--- linux-2.6/arch/s390/kernel/ipl.c	2006-12-04 14:50:39.000000000 +0100
+++ linux-2.6-patched/arch/s390/kernel/ipl.c	2006-12-04 14:50:41.000000000 +0100
@@ -664,6 +664,8 @@ void do_reipl(void)
 	switch (reipl_method) {
 	case IPL_METHOD_CCW_CIO:
 		devid.devno = reipl_block_ccw->ipl_info.ccw.devno;
+		if (ipl_get_type() == IPL_TYPE_CCW && devid.devno == ipl_devno)
+			diag308(DIAG308_IPL, NULL);
 		devid.ssid  = 0;
 		reipl_ccw_dev(&devid);
 		break;
-
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