[PATCH] mm/huge_memory.c: quiet sparse noise

[H Hartley Sweeten]

Quiet the sparse noise:

warning: symbol 'khugepaged_scan' was not declared. Should it be static?
warning: context imbalance in 'khugepaged_scan_mm_slot' - unexpected unlock

Signed-off-by: H Hartley Sweeten <hsweeten@xxxxxxxxxxxxxxxxxxx>
Cc: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
Cc: Andrea Arcangeli <aarcange@xxxxxxxxxx>
Cc: Rik van Riel <riel@xxxxxxxxxx>
Cc: Johannes Weiner <jweiner@xxxxxxxxxx>
Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@xxxxxxxxxxxxxx>

---

diff --git a/mm/huge_memory.c b/mm/huge_memory.c
index 6b072bd..44f5763 100644
--- a/mm/huge_memory.c
+++ b/mm/huge_memory.c
@@ -89,7 +89,8 @@ struct khugepaged_scan {
 	struct list_head mm_head;
 	struct mm_slot *mm_slot;
 	unsigned long address;
-} khugepaged_scan = {
+};
+static struct khugepaged_scan khugepaged_scan = {
 	.mm_head = LIST_HEAD_INIT(khugepaged_scan.mm_head),
 };
 
@@ -2069,6 +2070,8 @@ static void collect_mm_slot(struct mm_slot *mm_slot)
 
 static unsigned int khugepaged_scan_mm_slot(unsigned int pages,
 					    struct page **hpage)
+	__releases(&khugepaged_mm_lock)
+	__acquires(&khugepaged_mm_lock)
 {
 	struct mm_slot *mm_slot;
 	struct mm_struct *mm;
--
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