VisionFive2 Linux kernel

StarFive Tech Linux Kernel for VisionFive (JH7110) boards (mirror)

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author: Vlastimil Babka <vbabka@suse.cz> 2021-05-21 01:16:54 +0200 committer: Vlastimil Babka <vbabka@suse.cz> 2021-09-04 01:12:22 +0200 commit: 7cf9f3ba2f02216b2303e648c0c5439f00191008 parent: fc1455f4e023b278ca73cb729bc50037dc48c45c
Commit Summary:
mm, slub: only disable irq with spin_lock in __unfreeze_partials()
Diffstat:
1 file changed, 4 insertions, 6 deletions
diff --git a/mm/slub.c b/mm/slub.c
index 9b46d9b9c879..c5766e504e73 100644
--- a/mm/slub.c
+++ b/mm/slub.c
@@ -2352,9 +2352,7 @@ static void __unfreeze_partials(struct kmem_cache *s, struct page *partial_page)
 {
 	struct kmem_cache_node *n = NULL, *n2 = NULL;
 	struct page *page, *discard_page = NULL;
-	unsigned long flags;
-
-	local_irq_save(flags);
+	unsigned long flags = 0;
 
 	while (partial_page) {
 		struct page new;
@@ -2366,10 +2364,10 @@ static void __unfreeze_partials(struct kmem_cache *s, struct page *partial_page)
 		n2 = get_node(s, page_to_nid(page));
 		if (n != n2) {
 			if (n)
-				spin_unlock(&n->list_lock);
+				spin_unlock_irqrestore(&n->list_lock, flags);
 
 			n = n2;
-			spin_lock(&n->list_lock);
+			spin_lock_irqsave(&n->list_lock, flags);
 		}
 
 		do {
@@ -2398,9 +2396,7 @@ static void __unfreeze_partials(struct kmem_cache *s, struct page *partial_page)
 	}
 
 	if (n)
-		spin_unlock(&n->list_lock);
-
-	local_irq_restore(flags);
+		spin_unlock_irqrestore(&n->list_lock, flags);
 
 	while (discard_page) {
 		page = discard_page;