[PATCH v2 08/20] vmcore: modify vmcore clean-up function to free buffer on 2nd kernel

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From: HATAYAMA Daisuke <d.hatayama@jp.fujitsu.com>
To: vgoyal@redhat.com, ebiederm@xmission.com, cpw@sgi.com,
	kumagai-atsushi@mxc.nes.nec.co.jp, lisa.mitchell@hp.com,
	heiko.carstens@de.ibm.com, akpm@linux-foundation.org
Cc: kexec@lists.infradead.org, linux-kernel@vger.kernel.org
Subject: [PATCH v2 08/20] vmcore: modify vmcore clean-up function to free buffer on 2nd kernel
Date: Sat, 02 Mar 2013 17:36:33 +0900	[thread overview]
Message-ID: <20130302083633.31252.48024.stgit@localhost6.localdomain6> (raw)
In-Reply-To: <20130302083447.31252.93914.stgit@localhost6.localdomain6>

If flag MEM_TYPE_CURRENT_KERNEL is set, the object is copied in some
buffer on the 2nd kernel, so clean-up funciton needs to free it.

Signed-off-by: HATAYAMA Daisuke <d.hatayama@jp.fujitsu.com>
---

 fs/proc/vmcore.c |    4 ++++
 1 files changed, 4 insertions(+), 0 deletions(-)

diff --git a/fs/proc/vmcore.c b/fs/proc/vmcore.c
index 6b071b4..e4751ce 100644
--- a/fs/proc/vmcore.c
+++ b/fs/proc/vmcore.c
@@ -926,6 +926,10 @@ void vmcore_cleanup(void)
 		struct vmcore *m;
 
 		m = list_entry(pos, struct vmcore, list);
+
+		if (m->flag & MEM_TYPE_CURRENT_KERNEL)
+			free_pages((unsigned long)m->buf, get_order(m->size));
+
 		list_del(&m->list);
 		kfree(m);
 	}

WARNING: multiple messages have this Message-ID (diff)

From: HATAYAMA Daisuke <d.hatayama@jp.fujitsu.com>
To: vgoyal@redhat.com, ebiederm@xmission.com, cpw@sgi.com,
	kumagai-atsushi@mxc.nes.nec.co.jp, lisa.mitchell@hp.com,
	heiko.carstens@de.ibm.com, akpm@linux-foundation.org
Cc: kexec@lists.infradead.org, linux-kernel@vger.kernel.org
Subject: [PATCH v2 08/20] vmcore: modify vmcore clean-up function to free buffer on 2nd kernel
Date: Sat, 02 Mar 2013 17:36:33 +0900	[thread overview]
Message-ID: <20130302083633.31252.48024.stgit@localhost6.localdomain6> (raw)
In-Reply-To: <20130302083447.31252.93914.stgit@localhost6.localdomain6>

If flag MEM_TYPE_CURRENT_KERNEL is set, the object is copied in some
buffer on the 2nd kernel, so clean-up funciton needs to free it.

Signed-off-by: HATAYAMA Daisuke <d.hatayama@jp.fujitsu.com>
---

 fs/proc/vmcore.c |    4 ++++
 1 files changed, 4 insertions(+), 0 deletions(-)

diff --git a/fs/proc/vmcore.c b/fs/proc/vmcore.c
index 6b071b4..e4751ce 100644
--- a/fs/proc/vmcore.c
+++ b/fs/proc/vmcore.c
@@ -926,6 +926,10 @@ void vmcore_cleanup(void)
 		struct vmcore *m;
 
 		m = list_entry(pos, struct vmcore, list);
+
+		if (m->flag & MEM_TYPE_CURRENT_KERNEL)
+			free_pages((unsigned long)m->buf, get_order(m->size));
+
 		list_del(&m->list);
 		kfree(m);
 	}


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next prev parent reply	other threads:[~2013-03-05  7:05 UTC|newest]

Thread overview: 82+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-03-02  8:35 [PATCH v2 00/20] kdump, vmcore: support mmap() on /proc/vmcore HATAYAMA Daisuke
2013-03-02  8:35 ` HATAYAMA Daisuke
2013-03-02  8:35 ` [PATCH v2 01/20] vmcore: refer to e_phoff member explicitly HATAYAMA Daisuke
2013-03-02  8:35   ` HATAYAMA Daisuke
2013-03-05  7:35   ` Zhang Yanfei
2013-03-05  7:35     ` Zhang Yanfei
2013-03-10  6:46     ` Zhang Yanfei
2013-03-10  6:46       ` Zhang Yanfei
2013-03-11  0:31       ` HATAYAMA Daisuke
2013-03-11  0:31         ` HATAYAMA Daisuke
2013-03-11 17:36         ` Vivek Goyal
2013-03-11 17:36           ` Vivek Goyal
2013-03-02  8:35 ` [PATCH v2 02/20] vmcore: rearrange program headers without assuming consequtive PT_NOTE entries HATAYAMA Daisuke
2013-03-02  8:35   ` HATAYAMA Daisuke
2013-03-05  8:36   ` Zhang Yanfei
2013-03-05  8:36     ` Zhang Yanfei
2013-03-05  9:02     ` HATAYAMA Daisuke
2013-03-05  9:02       ` HATAYAMA Daisuke
2013-03-05  9:35       ` Zhang Yanfei
2013-03-05  9:35         ` Zhang Yanfei
2013-03-02  8:36 ` [PATCH v2 03/20] vmcore, sysfs: export ELF note segment size instead of vmcoreinfo data size HATAYAMA Daisuke
2013-03-02  8:36   ` HATAYAMA Daisuke
2013-03-05  9:29   ` Zhang Yanfei
2013-03-05  9:29     ` Zhang Yanfei
2013-03-06  0:07   ` HATAYAMA Daisuke
2013-03-06  0:07     ` HATAYAMA Daisuke
2013-03-02  8:36 ` [PATCH v2 04/20] vmcore: allocate buffer for ELF headers on page-size alignment HATAYAMA Daisuke
2013-03-02  8:36   ` HATAYAMA Daisuke
2013-03-06  6:57   ` Zhang Yanfei
2013-03-06  6:57     ` Zhang Yanfei
2013-03-06  9:14     ` HATAYAMA Daisuke
2013-03-06  9:14       ` HATAYAMA Daisuke
2013-03-02  8:36 ` [PATCH v2 05/20] vmcore: round up buffer size of ELF headers by PAGE_SIZE HATAYAMA Daisuke
2013-03-02  8:36   ` HATAYAMA Daisuke
2013-03-06 15:51   ` Yanfei Zhang
2013-03-06 15:51     ` Yanfei Zhang
2013-03-02  8:36 ` [PATCH v2 06/20] vmcore, procfs: introduce a flag to distinguish objects copied in 2nd kernel HATAYAMA Daisuke
2013-03-02  8:36   ` HATAYAMA Daisuke
2013-03-06 15:55   ` Yanfei Zhang
2013-03-06 15:55     ` Yanfei Zhang
2013-03-02  8:36 ` [PATCH v2 07/20] vmcore: copy non page-size aligned head and tail pages " HATAYAMA Daisuke
2013-03-02  8:36   ` HATAYAMA Daisuke
2013-03-10  6:16   ` Zhang Yanfei
2013-03-10  6:16     ` Zhang Yanfei
2013-03-11  0:27     ` HATAYAMA Daisuke
2013-03-11  0:27       ` HATAYAMA Daisuke
2013-03-02  8:36 ` HATAYAMA Daisuke [this message]
2013-03-02  8:36   ` [PATCH v2 08/20] vmcore: modify vmcore clean-up function to free buffer on " HATAYAMA Daisuke
2013-03-02  8:36 ` [PATCH v2 09/20] vmcore: clean up read_vmcore() HATAYAMA Daisuke
2013-03-02  8:36   ` HATAYAMA Daisuke
2013-03-02  8:36 ` [PATCH v2 10/20] vmcore: read buffers for vmcore objects copied from old memory HATAYAMA Daisuke
2013-03-02  8:36   ` HATAYAMA Daisuke
2013-03-02  8:36 ` [PATCH v2 11/20] vmcore: allocate per-cpu crash_notes objects on page-size boundary HATAYAMA Daisuke
2013-03-02  8:36   ` HATAYAMA Daisuke
2013-03-02  8:36 ` [PATCH v2 12/20] kexec: allocate vmcoreinfo note buffer " HATAYAMA Daisuke
2013-03-02  8:36   ` HATAYAMA Daisuke
2013-03-02  8:37 ` [PATCH v2 13/20] kexec, elf: introduce NT_VMCORE_DEBUGINFO note type HATAYAMA Daisuke
2013-03-02  8:37   ` HATAYAMA Daisuke
2013-03-02  8:37 ` [PATCH v2 14/20] elf: introduce NT_VMCORE_PAD type HATAYAMA Daisuke
2013-03-02  8:37   ` HATAYAMA Daisuke
2013-03-02  8:37 ` [PATCH v2 15/20] kexec: fill note buffers by NT_VMCORE_PAD notes in page-size boundary HATAYAMA Daisuke
2013-03-02  8:37   ` HATAYAMA Daisuke
2013-03-07 10:11   ` Zhang Yanfei
2013-03-07 10:11     ` Zhang Yanfei
2013-03-08  1:55     ` HATAYAMA Daisuke
2013-03-08  1:55       ` HATAYAMA Daisuke
2013-03-08 13:02       ` Yanfei Zhang
2013-03-08 13:02         ` Yanfei Zhang
2013-03-09  3:46         ` HATAYAMA Daisuke
2013-03-09  3:46           ` HATAYAMA Daisuke
2013-03-10  2:33           ` Zhang Yanfei
2013-03-10  2:33             ` Zhang Yanfei
2013-03-02  8:37 ` [PATCH v2 16/20] vmcore: check NT_VMCORE_PAD as a mark indicating the end of ELF note buffer HATAYAMA Daisuke
2013-03-02  8:37   ` HATAYAMA Daisuke
2013-03-02  8:37 ` [PATCH v2 17/20] vmcore: check if vmcore objects satify mmap()'s page-size boundary requirement HATAYAMA Daisuke
2013-03-02  8:37   ` HATAYAMA Daisuke
2013-03-02  8:37 ` [PATCH v2 18/20] vmcore: round-up offset of vmcore object in page-size boundary HATAYAMA Daisuke
2013-03-02  8:37   ` HATAYAMA Daisuke
2013-03-02  8:37 ` [PATCH v2 19/20] vmcore: count holes generated by round-up operation for vmcore size HATAYAMA Daisuke
2013-03-02  8:37   ` HATAYAMA Daisuke
2013-03-02  8:37 ` [PATCH v2 20/20] vmcore: introduce mmap_vmcore() HATAYAMA Daisuke
2013-03-02  8:37   ` HATAYAMA Daisuke

find likely ancestor, descendant, or conflicting patches for this message:
dfblob:6b071b4 dfblob:6b071b4 dfblob:e4751ce dfblob:e4751ce
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