fs/proc/vmcore.c | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/fs/proc/vmcore.c b/fs/proc/vmcore.c
index a45f0af22a60..83278c547127 100644
--- a/fs/proc/vmcore.c
+++ b/fs/proc/vmcore.c
@@ -491,7 +491,15 @@ static int mmap_vmcore(struct file *file, struct vm_area_struct *vma)
 }
 #endif
 
+/* Mark vmcore as being able and willing to do 64-bit mmaps */
+static int vmcore_open(struct inode *inode, struct file *file)
+{
+	file->f_mode |= FMODE_UNSIGNED_OFFSET;
+	return 0;
+}
+
 static const struct file_operations proc_vmcore_operations = {
+	.open		= vmcore_open,
 	.read		= read_vmcore,
 	.llseek		= default_llseek,
 	.mmap		= mmap_vmcore,