From patchwork Wed Jun 8 19:30:03 2011 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Paul E. McKenney" X-Patchwork-Id: 1867 Return-Path: Delivered-To: unknown Received: from imap.gmail.com (74.125.47.109) by localhost6.localdomain6 with IMAP4-SSL; 14 Jun 2011 16:46:10 -0000 Delivered-To: patches@linaro.org Received: by 10.52.181.10 with SMTP id ds10cs199955vdc; Wed, 8 Jun 2011 12:30:32 -0700 (PDT) Received: by 10.236.109.136 with SMTP id s8mr2775832yhg.306.1307561432330; Wed, 08 Jun 2011 12:30:32 -0700 (PDT) Received: from e1.ny.us.ibm.com (e1.ny.us.ibm.com [32.97.182.141]) by mx.google.com with ESMTPS id j68si4950929yhe.131.2011.06.08.12.30.31 (version=TLSv1/SSLv3 cipher=OTHER); Wed, 08 Jun 2011 12:30:32 -0700 (PDT) Received-SPF: pass (google.com: domain of paulmck@linux.vnet.ibm.com designates 32.97.182.141 as permitted sender) client-ip=32.97.182.141; Authentication-Results: mx.google.com; spf=pass (google.com: domain of paulmck@linux.vnet.ibm.com designates 32.97.182.141 as permitted sender) smtp.mail=paulmck@linux.vnet.ibm.com Received: from d01relay01.pok.ibm.com (d01relay01.pok.ibm.com [9.56.227.233]) by e1.ny.us.ibm.com (8.14.4/8.13.1) with ESMTP id p58JIqDj018372 for ; Wed, 8 Jun 2011 15:18:53 -0400 Received: from d01av01.pok.ibm.com (d01av01.pok.ibm.com [9.56.224.215]) by d01relay01.pok.ibm.com (8.13.8/8.13.8/NCO v10.0) with ESMTP id p58JUS5m125678 for ; Wed, 8 Jun 2011 15:30:28 -0400 Received: from d01av01.pok.ibm.com (loopback [127.0.0.1]) by d01av01.pok.ibm.com (8.14.4/8.13.1/NCO v10.0 AVout) with ESMTP id p58JUG5O016124 for ; Wed, 8 Jun 2011 15:30:24 -0400 Received: from paulmck-ThinkPad-W500 (paulmck-ThinkPad-W500.beaverton.ibm.com [9.47.24.65]) by d01av01.pok.ibm.com (8.14.4/8.13.1/NCO v10.0 AVin) with ESMTP id p58JUBKT015579; Wed, 8 Jun 2011 15:30:14 -0400 Received: by paulmck-ThinkPad-W500 (Postfix, from userid 1000) id 0981813F806; Wed, 8 Jun 2011 12:30:10 -0700 (PDT) From: "Paul E. McKenney" To: linux-kernel@vger.kernel.org Cc: mingo@elte.hu, laijs@cn.fujitsu.com, dipankar@in.ibm.com, akpm@linux-foundation.org, mathieu.desnoyers@polymtl.ca, josh@joshtriplett.org, niv@us.ibm.com, tglx@linutronix.de, peterz@infradead.org, rostedt@goodmis.org, Valdis.Kletnieks@vt.edu, dhowells@redhat.com, eric.dumazet@gmail.com, darren@dvhart.com, patches@linaro.org, "Paul E. McKenney" , Namhyung Kim , David Rientjes Subject: [PATCH tip/core/rcu 24/28] vmalloc, rcu: Convert call_rcu(rcu_free_va) to kfree_rcu() Date: Wed, 8 Jun 2011 12:30:03 -0700 Message-Id: <1307561407-13809-24-git-send-email-paulmck@linux.vnet.ibm.com> X-Mailer: git-send-email 1.7.3.2 In-Reply-To: <20110608192943.GA13211@linux.vnet.ibm.com> References: <20110608192943.GA13211@linux.vnet.ibm.com> From: Lai Jiangshan 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 Signed-off-by: Paul E. McKenney Cc: Andrew Morton Cc: David Rientjes Reviewed-by: Josh Triplett --- mm/vmalloc.c | 9 +-------- 1 files changed, 1 insertions(+), 8 deletions(-) diff --git a/mm/vmalloc.c b/mm/vmalloc.c index 5d60302..73f56c8 100644 --- a/mm/vmalloc.c +++ b/mm/vmalloc.c @@ -452,13 +452,6 @@ overflow: return ERR_PTR(-EBUSY); } -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)); @@ -491,7 +484,7 @@ 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); } /*