1 files changed, 15 insertions, 0 deletions

diff --git a/kernel/kexec.c b/kernel/kexec.c
index 20ed47ae252f..60bf181b3eae 100644
--- a/kernel/kexec.c
+++ b/kernel/kexec.c
@@ -1129,6 +1129,7 @@ int crash_shrink_memory(unsigned long new_size)
 {
         int ret = 0;
         unsigned long start, end;
+        struct resource *ram_res;
 
         mutex_lock(&kexec_mutex);
 
@@ -1146,6 +1147,12 @@ int crash_shrink_memory(unsigned long new_size)
                 goto unlock;
         }
 
+        ram_res = kzalloc(sizeof(*ram_res), GFP_KERNEL);
+        if (!ram_res) {
+                ret = -ENOMEM;
+                goto unlock;
+        }
+
         start = roundup(start, KEXEC_CRASH_MEM_ALIGN);
         end = roundup(start + new_size, KEXEC_CRASH_MEM_ALIGN);
 
@@ -1154,7 +1161,15 @@ int crash_shrink_memory(unsigned long new_size)
 
         if ((start == end) && (crashk_res.parent != NULL))
                 release_resource(&crashk_res);
+
+        ram_res->start = end;
+        ram_res->end = crashk_res.end;
+        ram_res->flags = IORESOURCE_BUSY | IORESOURCE_MEM;
+        ram_res->name = "System RAM";
+
         crashk_res.end = end - 1;
+
+        insert_resource(&iomem_resource, ram_res);
         crash_unmap_reserved_pages();
 
 unlock: