VisionFive2 Linux kernel

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

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author: Vlastimil Babka <vbabka@suse.cz> 2021-05-10 16:30:01 +0200 committer: Vlastimil Babka <vbabka@suse.cz> 2021-09-04 01:12:21 +0200 commit: 6c1dbb674c5cf76d23381160577d34bead60b76b parent: fa417ab7506f9234100e249938d13e94a8c404e8
Commit Summary:
mm, slub: restore irqs around calling new_slab()
Diffstat:
1 file changed, 2 insertions, 6 deletions
diff --git a/mm/slub.c b/mm/slub.c
index 4d1f3e4a5951..7798ba1c614f 100644
--- a/mm/slub.c
+++ b/mm/slub.c
@@ -1809,9 +1809,6 @@ static struct page *allocate_slab(struct kmem_cache *s, gfp_t flags, int node)
 
 	flags &= gfp_allowed_mask;
 
-	if (gfpflags_allow_blocking(flags))
-		local_irq_enable();
-
 	flags |= s->allocflags;
 
 	/*
@@ -1870,8 +1867,6 @@ static struct page *allocate_slab(struct kmem_cache *s, gfp_t flags, int node)
 	page->frozen = 1;
 
 out:
-	if (gfpflags_allow_blocking(flags))
-		local_irq_disable();
 	if (!page)
 		return NULL;
 
@@ -2812,16 +2807,17 @@ new_objects:
 		goto check_new_page;
 	}
 
+	local_irq_restore(flags);
 	put_cpu_ptr(s->cpu_slab);
 	page = new_slab(s, gfpflags, node);
 	c = get_cpu_ptr(s->cpu_slab);
 
 	if (unlikely(!page)) {
-		local_irq_restore(flags);
 		slab_out_of_memory(s, gfpflags, node);
 		return NULL;
 	}
 
+	local_irq_save(flags);
 	if (c->page)
 		flush_slab(s, c);