mm: vm_event_item: explicit #include for THREAD_SIZE

This header uses THREAD_SIZE, which is provided by the thread_info.h
header but is not included in this header.  Depending on the #include
ordering in other files, this can produce preprocessor errors.

Link: https://lkml.kernel.org/r/20250909201419.827638-1-briannorris@chromium.org
Signed-off-by: Brian Norris <briannorris@chromium.org>
Reviewed-by: Lorenzo Stoakes <lorenzo.stoakes@oracle.com>
Cc: David Hildenbrand <david@redhat.com>
Cc: Liam Howlett <liam.howlett@oracle.com>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Mike Rapoport <rppt@kernel.org>
Cc: Suren Baghdasaryan <surenb@google.com>
Cc: Vlastimil Babka <vbabka@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>

diff --git a/include/linux/vm_event_item.h b/include/linux/vm_event_item.h
index 9e15a088ba38e2d3864ea7bddf486e87a1ff4410..92f80b4d69a6db191fb3e277b4d4702091babe6d 100644 (file)
--- a/include/linux/vm_event_item.h
+++ b/include/linux/vm_event_item.h
@@ -2,6 +2,8 @@
 #ifndef VM_EVENT_ITEM_H_INCLUDED
 #define VM_EVENT_ITEM_H_INCLUDED
 
+#include <linux/thread_info.h>
+
 #ifdef CONFIG_ZONE_DMA
 #define DMA_ZONE(xx) xx##_DMA,
 #else