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vmalloc,rcu: convert call_rcu(rcu_free_va) to kfree_rcu()

PATCH In review Lai Jiangshan 1 participant 1 message Mar 18, 2011

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Lai Jiangshan

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PATCH 33/36 vmalloc,rcu: convert call_rcu(rcu_free_va) to kfree_rcu()

The rcu callback rcu_free_va() just calls a kfree(), so we use kfree_rcu() instead of the call_rcu(rcu_free_va).

Signed-off-by Lai Jiangshan <[email protected]>
---
 mm/vmalloc.c |    9 +--------
 1 files changed, 1 insertions(+), 8 deletions(-)
mm/vmalloc.c +1 -8
index f9b1667..fe38e30 100644
@@ -416,13 +416,6 @@ overflow:
 	return va;
 }
 
-static void rcu_free_va(struct rcu_head *head)
-{
-	struct vmap_area *va = container_of(head, struct vmap_area, rcu_head);
-
-	kfree(va);
-}
-
 static void __free_vmap_area(struct vmap_area *va)
 {
 	BUG_ON(RB_EMPTY_NODE(&va->rb_node));

@@ -439,7 +432,7 @@ static void __free_vmap_area(struct vmap_area *va)
 	if (va->va_end > VMALLOC_START && va->va_end <= VMALLOC_END)
 		vmap_area_pcpu_hole = max(vmap_area_pcpu_hole, va->va_end);
 
-	call_rcu(&va->rcu_head, rcu_free_va);
+	kfree_rcu(va, rcu_head);
 }
 
 /*
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1.7.4

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