mm/huge_memory.c: quiet sparse noise

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@visionengravers.com>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Cc: Rik van Riel <riel@redhat.com>
Cc: Johannes Weiner <jweiner@redhat.com>
Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 4 insertions, 1 deletions

diff --git a/mm/huge_memory.c b/mm/huge_memory.c
index 6b072bdccf81..44f57631cd7c 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;