Some parts of old memory need to be copied in buffers on 2nd kernel to
be remapped to user-space. To distinguish objects in the buffer on 2nd
kernel and the ones on old memory, enum vmcore_type is introduced: the
object in the buffer on 2nd kernel has VMCORE_2ND_KERNEL type, and the
one on old memory has VMCORE_OLD_MEMORY type.
Signed-off-by: HATAYAMA Daisuke <d.hatayama at jp.fujitsu.com>
---
include/linux/proc_fs.h | 11 ++++++++++-
1 files changed, 10 insertions(+), 1 deletions(-)
diff --git a/include/linux/proc_fs.h b/include/linux/proc_fs.h
index 32676b3..4b153ed 100644
--- a/include/linux/proc_fs.h
+++ b/include/linux/proc_fs.h
@@ -97,11 +97,20 @@ struct kcore_list {
int type;
};
+enum vmcore_type {
+ VMCORE_OLD_MEMORY,
+ VMCORE_2ND_KERNEL,
+};
+
struct vmcore {
struct list_head list;
- unsigned long long paddr;
+ union {
+ unsigned long long paddr;
+ char *buf;
+ };
unsigned long long size;
loff_t offset;
+ enum vmcore_type type;
};
#ifdef CONFIG_PROC_FS
