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-rw-r--r--mm/memory-failure.c14
1 files changed, 4 insertions, 10 deletions
diff --git a/mm/memory-failure.c b/mm/memory-failure.c
index 9a285f8cdbe1..676ab394200e 100644
--- a/mm/memory-failure.c
+++ b/mm/memory-failure.c
@@ -401,14 +401,6 @@ static int me_unknown(struct page *p, unsigned long pfn)
}
/*
- * Free memory
- */
-static int me_free(struct page *p, unsigned long pfn)
-{
- return DELAYED;
-}
-
-/*
* Clean (or cleaned) page cache page.
*/
static int me_pagecache_clean(struct page *p, unsigned long pfn)
@@ -604,7 +596,6 @@ static int me_huge_page(struct page *p, unsigned long pfn)
#define tail (1UL << PG_tail)
#define compound (1UL << PG_compound)
#define slab (1UL << PG_slab)
-#define buddy (1UL << PG_buddy)
#define reserved (1UL << PG_reserved)
static struct page_state {
@@ -614,7 +605,10 @@ static struct page_state {
int (*action)(struct page *p, unsigned long pfn);
} error_states[] = {
{ reserved, reserved, "reserved kernel", me_ignore },
- { buddy, buddy, "free kernel", me_free },
+ /*
+ * free pages are specially detected outside this table:
+ * PG_buddy pages only make a small fraction of all free pages.
+ */
/*
* Could in theory check if slab page is free or if we can drop