[patch 26/26] kdump proc vmcore size oveflow fix

[gregkh]

From: Vivek Goyal <vgoyal@xxxxxxxxxx>

A couple of /proc/vmcore data structures overflow with 32bit systems having
memory more than 4G.  This patch fixes those.

Signed-off-by: Ken'ichi Ohmichi <oomichi@xxxxxxxxxxxxxxxxx>
Signed-off-by: Vivek Goyal <vgoyal@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxx>


---
 fs/proc/vmcore.c        |    4 ++--
 include/linux/proc_fs.h |    2 +-
 2 files changed, 3 insertions(+), 3 deletions(-)

--- linux-2.6.16.1.orig/fs/proc/vmcore.c
+++ linux-2.6.16.1/fs/proc/vmcore.c
@@ -103,8 +103,8 @@ static ssize_t read_vmcore(struct file *
 				size_t buflen, loff_t *fpos)
 {
 	ssize_t acc = 0, tmp;
-	size_t tsz, nr_bytes;
-	u64 start;
+	size_t tsz;
+	u64 start, nr_bytes;
 	struct vmcore *curr_m = NULL;
 
 	if (buflen == 0 || *fpos >= vmcore_size)
--- linux-2.6.16.1.orig/include/linux/proc_fs.h
+++ linux-2.6.16.1/include/linux/proc_fs.h
@@ -78,7 +78,7 @@ struct kcore_list {
 struct vmcore {
 	struct list_head list;
 	unsigned long long paddr;
-	unsigned long size;
+	unsigned long long size;
 	loff_t offset;
 };
 

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