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x-ptr=pass x-ptr-helo=vger.kernel.org x-ptr-lookup=vger.kernel.org; x-return-mx=pass smtp.domain=vger.kernel.org smtp.result=pass smtp_org.domain=kernel.org smtp_org.result=pass smtp_is_org_domain=no header.domain=oracle.com header.result=pass header_is_org_domain=yes Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S935264AbeCTAfa (ORCPT ); Mon, 19 Mar 2018 20:35:30 -0400 Received: from aserp2130.oracle.com ([141.146.126.79]:43592 "EHLO aserp2130.oracle.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S934191AbeCTAf3 (ORCPT ); Mon, 19 Mar 2018 20:35:29 -0400 Date: Mon, 19 Mar 2018 17:34:56 -0700 From: "Darrick J. Wong" To: Christoph Hellwig Cc: viro@zeniv.linux.org.uk, Avi Kivity , linux-aio@kvack.org, linux-fsdevel@vger.kernel.org, netdev@vger.kernel.org, linux-api@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH 06/36] aio: delete iocbs from the active_reqs list in kiocb_cancel Message-ID: <20180320003456.GD7282@magnolia> References: <20180305212743.16664-1-hch@lst.de> <20180305212743.16664-7-hch@lst.de> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20180305212743.16664-7-hch@lst.de> User-Agent: Mutt/1.5.24 (2015-08-30) X-Proofpoint-Virus-Version: vendor=nai engine=5900 definitions=8836 signatures=668693 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 suspectscore=2 malwarescore=0 phishscore=0 bulkscore=0 spamscore=0 mlxscore=0 mlxlogscore=999 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1711220000 definitions=main-1803190149 Sender: linux-api-owner@vger.kernel.org X-Mailing-List: linux-api@vger.kernel.org X-getmail-retrieved-from-mailbox: INBOX X-Mailing-List: linux-kernel@vger.kernel.org List-ID: On Mon, Mar 05, 2018 at 01:27:13PM -0800, Christoph Hellwig wrote: > One we cancel an iocb there is no reason to keep it on the active_reqs > list, given that the list is only used to look for cancelation candidates. > > Signed-off-by: Christoph Hellwig > Acked-by: Jeff Moyer Reviewed-by: Darrick J. Wong --D > --- > fs/aio.c | 4 ++-- > 1 file changed, 2 insertions(+), 2 deletions(-) > > diff --git a/fs/aio.c b/fs/aio.c > index 2d40cf5dd4ec..0b6394b4e528 100644 > --- a/fs/aio.c > +++ b/fs/aio.c > @@ -561,6 +561,8 @@ static int kiocb_cancel(struct aio_kiocb *kiocb) > { > kiocb_cancel_fn *cancel = kiocb->ki_cancel; > > + list_del_init(&kiocb->ki_list); > + > if (!cancel) > return -EINVAL; > kiocb->ki_cancel = NULL; > @@ -607,8 +609,6 @@ static void free_ioctx_users(struct percpu_ref *ref) > while (!list_empty(&ctx->active_reqs)) { > req = list_first_entry(&ctx->active_reqs, > struct aio_kiocb, ki_list); > - > - list_del_init(&req->ki_list); > kiocb_cancel(req); > } > > -- > 2.14.2 >