Merge branch 'memalloc_prof_v6' of https://github.com/surenbaghdasaryan/linux

1 files changed, 12 insertions, 1 deletions

diff --git a/mm/mm_init.c b/mm/mm_init.c
index 549e76af8f82..f45c2b32ba82 100644
--- a/mm/mm_init.c
+++ b/mm/mm_init.c
@@ -24,6 +24,7 @@
 #include <linux/page_ext.h>
 #include <linux/pti.h>
 #include <linux/pgtable.h>
+#include <linux/stackdepot.h>
 #include <linux/swap.h>
 #include <linux/cma.h>
 #include <linux/crash_dump.h>
@@ -2566,7 +2567,6 @@ void __init set_dma_reserve(unsigned long new_dma_reserve)
 void __init memblock_free_pages(struct page *page, unsigned long pfn,
 							unsigned int order)
 {
-
 	if (IS_ENABLED(CONFIG_DEFERRED_STRUCT_PAGE_INIT)) {
 		int nid = early_pfn_to_nid(pfn);
 
@@ -2578,6 +2578,17 @@ void __init memblock_free_pages(struct page *page, unsigned long pfn,
 		/* KMSAN will take care of these pages. */
 		return;
 	}
+
+	/* pages were reserved and not allocated */
+	if (mem_alloc_profiling_enabled()) {
+		union codetag_ref *ref = get_page_tag_ref(page);
+
+		if (ref) {
+			set_codetag_empty(ref);
+			put_page_tag_ref(ref);
+		}
+	}
+
 	__free_pages_core(page, order);
 }