From mboxrd@z Thu Jan 1 00:00:00 1970 From: Shirley Ma Subject: Re: [PATCH] fix memory leak in virtio_net Date: Mon, 10 Aug 2009 22:03:41 -0700 Message-ID: <1249967021.4161.2.camel@localhost.localdomain> References: <1249934708.7400.10.camel@localhost.localdomain> Mime-Version: 1.0 Content-Type: text/plain Content-Transfer-Encoding: 7bit Cc: linux-kernel@vger.kernel.org, netdev@vger.kernel.org To: kvm@vger.kernel.org Return-path: In-Reply-To: <1249934708.7400.10.camel@localhost.localdomain> Sender: linux-kernel-owner@vger.kernel.org List-Id: netdev.vger.kernel.org This is false report. I checked kfree_skb(), it does free all pages in the fraglist in skb_release_data() later. Thanks Shirley On Mon, 2009-08-10 at 13:05 -0700, Shirley Ma wrote: > Whild reading virtio code, I found some memory leak in removing > virtio_net. > > In virtnet_remove, only skb has been freed not the pages in skb > frags. Here is the patch to fix this, please review it. > > Signed-off-by: Shirley Ma > > diff --git a/drivers/net/virtio_net.c b/drivers/net/virtio_net.c > index 2a6e81d..7e629d9 100644 > --- a/drivers/net/virtio_net.c > +++ b/drivers/net/virtio_net.c > @@ -978,6 +978,7 @@ static void virtnet_remove(struct virtio_device *vdev) > > /* Free our skbs in send and recv queues, if any. */ > while ((skb = __skb_dequeue(&vi->recv)) != NULL) { > + trim_pages(vi, skb); > kfree_skb(skb); > vi->num--; > } > > > >