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From: Michael Holzheu <holzheu@linux.vnet.ibm.com>
To: vgoyal@redhat.com
Cc: oomichi@mxs.nes.nec.co.jp, linux-s390@vger.kernel.org,
	mahesh@linux.vnet.ibm.com, heiko.carstens@de.ibm.com,
	linux-kernel@vger.kernel.org, hbabu@us.ibm.com,
	horms@verge.net.au, ebiederm@xmission.com,
	schwidefsky@de.ibm.com, kexec@lists.infradead.org
Subject: [patch v3 1/8] kdump: Add KEXEC_CRASH_CONTROL_MEMORY_LIMIT
Date: Fri, 12 Aug 2011 15:48:50 +0200	[thread overview]
Message-ID: <20110812134907.021058020@linux.vnet.ibm.com> (raw)
In-Reply-To: 20110812134849.748973593@linux.vnet.ibm.com

[-- Attachment #1: s390-kdump-common-control-limit.patch --]
[-- Type: text/plain, Size: 1404 bytes --]

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

On s390 there is a different KEXEC_CONTROL_MEMORY_LIMIT for the normal and
the kdump kexec case. Therefore this patch introduces a new macro
KEXEC_CRASH_CONTROL_MEMORY_LIMIT. This is set to
KEXEC_CONTROL_MEMORY_LIMIT for all architectures that do not define
KEXEC_CRASH_CONTROL_MEMORY_LIMIT.

Signed-off-by: Michael Holzheu <holzheu@linux.vnet.ibm.com>
---
 include/linux/kexec.h |    4 ++++
 kernel/kexec.c        |    2 +-
 2 files changed, 5 insertions(+), 1 deletion(-)

--- a/include/linux/kexec.h
+++ b/include/linux/kexec.h
@@ -33,6 +33,10 @@
 #error KEXEC_ARCH not defined
 #endif
 
+#ifndef KEXEC_CRASH_CONTROL_MEMORY_LIMIT
+#define KEXEC_CRASH_CONTROL_MEMORY_LIMIT KEXEC_CONTROL_MEMORY_LIMIT
+#endif
+
 #define KEXEC_NOTE_HEAD_BYTES ALIGN(sizeof(struct elf_note), 4)
 #define KEXEC_CORE_NOTE_NAME "CORE"
 #define KEXEC_CORE_NOTE_NAME_BYTES ALIGN(sizeof(KEXEC_CORE_NOTE_NAME), 4)
--- a/kernel/kexec.c
+++ b/kernel/kexec.c
@@ -498,7 +498,7 @@ static struct page *kimage_alloc_crash_c
 	while (hole_end <= crashk_res.end) {
 		unsigned long i;
 
-		if (hole_end > KEXEC_CONTROL_MEMORY_LIMIT)
+		if (hole_end > KEXEC_CRASH_CONTROL_MEMORY_LIMIT)
 			break;
 		if (hole_end > crashk_res.end)
 			break;


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WARNING: multiple messages have this Message-ID (diff)
From: Michael Holzheu <holzheu@linux.vnet.ibm.com>
To: vgoyal@redhat.com
Cc: ebiederm@xmission.com, mahesh@linux.vnet.ibm.com,
	hbabu@us.ibm.com, oomichi@mxs.nes.nec.co.jp, horms@verge.net.au,
	schwidefsky@de.ibm.com, heiko.carstens@de.ibm.com,
	kexec@lists.infradead.org, linux-kernel@vger.kernel.org,
	linux-s390@vger.kernel.org
Subject: [patch v3 1/8] kdump: Add KEXEC_CRASH_CONTROL_MEMORY_LIMIT
Date: Fri, 12 Aug 2011 15:48:50 +0200	[thread overview]
Message-ID: <20110812134907.021058020@linux.vnet.ibm.com> (raw)
In-Reply-To: 20110812134849.748973593@linux.vnet.ibm.com

[-- Attachment #1: s390-kdump-common-control-limit.patch --]
[-- Type: text/plain, Size: 1259 bytes --]

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

On s390 there is a different KEXEC_CONTROL_MEMORY_LIMIT for the normal and
the kdump kexec case. Therefore this patch introduces a new macro
KEXEC_CRASH_CONTROL_MEMORY_LIMIT. This is set to
KEXEC_CONTROL_MEMORY_LIMIT for all architectures that do not define
KEXEC_CRASH_CONTROL_MEMORY_LIMIT.

Signed-off-by: Michael Holzheu <holzheu@linux.vnet.ibm.com>
---
 include/linux/kexec.h |    4 ++++
 kernel/kexec.c        |    2 +-
 2 files changed, 5 insertions(+), 1 deletion(-)

--- a/include/linux/kexec.h
+++ b/include/linux/kexec.h
@@ -33,6 +33,10 @@
 #error KEXEC_ARCH not defined
 #endif
 
+#ifndef KEXEC_CRASH_CONTROL_MEMORY_LIMIT
+#define KEXEC_CRASH_CONTROL_MEMORY_LIMIT KEXEC_CONTROL_MEMORY_LIMIT
+#endif
+
 #define KEXEC_NOTE_HEAD_BYTES ALIGN(sizeof(struct elf_note), 4)
 #define KEXEC_CORE_NOTE_NAME "CORE"
 #define KEXEC_CORE_NOTE_NAME_BYTES ALIGN(sizeof(KEXEC_CORE_NOTE_NAME), 4)
--- a/kernel/kexec.c
+++ b/kernel/kexec.c
@@ -498,7 +498,7 @@ static struct page *kimage_alloc_crash_c
 	while (hole_end <= crashk_res.end) {
 		unsigned long i;
 
-		if (hole_end > KEXEC_CONTROL_MEMORY_LIMIT)
+		if (hole_end > KEXEC_CRASH_CONTROL_MEMORY_LIMIT)
 			break;
 		if (hole_end > crashk_res.end)
 			break;

  reply	other threads:[~2011-08-12 13:49 UTC|newest]

Thread overview: 45+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-08-12 13:48 [patch v3 0/8] kdump: Patch series for s390 support (version 3) Michael Holzheu
2011-08-12 13:48 ` Michael Holzheu
2011-08-12 13:48 ` Michael Holzheu [this message]
2011-08-12 13:48   ` [patch v3 1/8] kdump: Add KEXEC_CRASH_CONTROL_MEMORY_LIMIT Michael Holzheu
2011-08-12 13:48 ` [patch v3 2/8] kdump: Make kimage_load_crash_segment() weak Michael Holzheu
2011-08-12 13:48   ` Michael Holzheu
2011-08-18 17:15   ` Vivek Goyal
2011-08-18 17:15     ` Vivek Goyal
2011-08-19 13:27     ` Michael Holzheu
2011-08-19 13:27       ` Michael Holzheu
2011-08-19 13:48       ` Vivek Goyal
2011-08-19 13:48         ` Vivek Goyal
2011-08-19 13:48         ` Vivek Goyal
2011-08-19 14:02         ` Michael Holzheu
2011-08-19 14:02           ` Michael Holzheu
2011-08-19 14:02           ` Michael Holzheu
2011-08-19 14:28         ` Martin Schwidefsky
2011-08-19 14:28           ` Martin Schwidefsky
2011-08-19 14:28           ` Martin Schwidefsky
2011-08-19 14:37           ` Vivek Goyal
2011-08-19 14:37             ` Vivek Goyal
2011-08-19 14:37             ` Vivek Goyal
2011-08-19 14:44             ` Martin Schwidefsky
2011-08-19 14:44               ` Martin Schwidefsky
2011-08-19 14:44               ` Martin Schwidefsky
2011-08-12 13:48 ` [patch v3 3/8] kdump: Add size to elfcorehdr kernel parameter Michael Holzheu
2011-08-12 13:48   ` Michael Holzheu
2011-08-17 21:05   ` Vivek Goyal
2011-08-17 21:05     ` Vivek Goyal
2011-08-18  8:47     ` Michael Holzheu
2011-08-18  8:47       ` Michael Holzheu
2011-08-18 17:28       ` Vivek Goyal
2011-08-18 17:28         ` Vivek Goyal
2011-08-18 17:56         ` Michael Holzheu
2011-08-18 17:56           ` Michael Holzheu
2011-08-12 13:48 ` [patch v3 4/8] s390: Add real memory access functions Michael Holzheu
2011-08-12 13:48   ` Michael Holzheu
2011-08-12 13:48 ` [patch v3 5/8] s390: kdump backend code Michael Holzheu
2011-08-12 13:48   ` Michael Holzheu
2011-08-12 13:48 ` [patch v3 6/8] s390: Do first kdump checksum test before really starting kdump Michael Holzheu
2011-08-12 13:48   ` Michael Holzheu
2011-08-12 13:48 ` [patch v3 7/8] kexec-tools: Add s390 kdump support Michael Holzheu
2011-08-12 13:48   ` Michael Holzheu
2011-08-12 13:48 ` [patch v3 8/8] kexec-tools: Allow to call verify_sha256_digest() from kernel Michael Holzheu
2011-08-12 13:48   ` Michael Holzheu

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