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-rw-r--r--mm/page_alloc.c11
1 files changed, 10 insertions, 1 deletions
diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index 303d385..c13b6b2 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -59,6 +59,7 @@
#include <linux/page_ext.h>
#include <linux/hugetlb.h>
#include <linux/sched/rt.h>
+#include <linux/page_owner.h>
#include <asm/sections.h>
#include <asm/tlbflush.h>
@@ -813,6 +814,8 @@ static bool free_pages_prepare(struct page *page, unsigned int order)
if (bad)
return false;
+ reset_page_owner(page, order);
+
if (!PageHighMem(page)) {
debug_check_no_locks_freed(page_address(page),
PAGE_SIZE << order);
@@ -988,6 +991,8 @@ static int prep_new_page(struct page *page, unsigned int order, gfp_t gfp_flags)
if (order && (gfp_flags & __GFP_COMP))
prep_compound_page(page, order);
+ set_page_owner(page, order, gfp_flags);
+
return 0;
}
@@ -1560,8 +1565,11 @@ void split_page(struct page *page, unsigned int order)
split_page(virt_to_page(page[0].shadow), order);
#endif
- for (i = 1; i < (1 << order); i++)
+ set_page_owner(page, 0, 0);
+ for (i = 1; i < (1 << order); i++) {
set_page_refcounted(page + i);
+ set_page_owner(page + i, 0, 0);
+ }
}
EXPORT_SYMBOL_GPL(split_page);
@@ -1601,6 +1609,7 @@ int __isolate_free_page(struct page *page, unsigned int order)
}
}
+ set_page_owner(page, order, 0);
return 1UL << order;
}
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