From patchwork Fri Sep 16 20:27:07 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jeff Layton X-Patchwork-Id: 9336739 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id 8F9496077F for ; Fri, 16 Sep 2016 20:27:38 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 7C2C52A07C for ; Fri, 16 Sep 2016 20:27:38 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 6DF852A083; Fri, 16 Sep 2016 20:27:38 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-6.9 required=2.0 tests=BAYES_00,RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 1B9A62A07E for ; Fri, 16 Sep 2016 20:27:28 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S965243AbcIPU1Y (ORCPT ); Fri, 16 Sep 2016 16:27:24 -0400 Received: from mx1.redhat.com ([209.132.183.28]:45206 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S965462AbcIPU1V (ORCPT ); Fri, 16 Sep 2016 16:27:21 -0400 Received: from int-mx14.intmail.prod.int.phx2.redhat.com (int-mx14.intmail.prod.int.phx2.redhat.com [10.5.11.27]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id 171DF65733; Fri, 16 Sep 2016 20:27:16 +0000 (UTC) Received: from tlielax.poochiereds.net (ovpn-116-71.rdu2.redhat.com [10.10.116.71]) by int-mx14.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id u8GKRBde005570; Fri, 16 Sep 2016 16:27:15 -0400 From: Jeff Layton To: trond.myklebust@primarydata.com, anna.schumaker@netapp.com Cc: linux-nfs@vger.kernel.org, bfields@fieldses.org Subject: [PATCH v3 5/9] nfs: track whether server sets MAY_NOTIFY_LOCK flag Date: Fri, 16 Sep 2016 16:27:07 -0400 Message-Id: <1474057631-31209-6-git-send-email-jlayton@redhat.com> In-Reply-To: <1474057631-31209-1-git-send-email-jlayton@redhat.com> References: <1474057631-31209-1-git-send-email-jlayton@redhat.com> X-Scanned-By: MIMEDefang 2.68 on 10.5.11.27 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.38]); Fri, 16 Sep 2016 20:27:16 +0000 (UTC) Sender: linux-nfs-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-nfs@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP We want to handle the two cases differently, such that we poll more aggressively when we don't expect a callback. Signed-off-by: Jeff Layton --- fs/nfs/nfs4_fs.h | 1 + fs/nfs/nfs4proc.c | 2 ++ 2 files changed, 3 insertions(+) diff --git a/fs/nfs/nfs4_fs.h b/fs/nfs/nfs4_fs.h index 9bf64eacba5b..91e4f135a5f2 100644 --- a/fs/nfs/nfs4_fs.h +++ b/fs/nfs/nfs4_fs.h @@ -156,6 +156,7 @@ enum { NFS_STATE_RECLAIM_NOGRACE, /* OPEN stateid needs to recover state */ NFS_STATE_POSIX_LOCKS, /* Posix locks are supported */ NFS_STATE_RECOVERY_FAILED, /* OPEN stateid state recovery failed */ + NFS_STATE_MAY_NOTIFY_LOCK, /* server may CB_NOTIFY_LOCK */ }; struct nfs4_state { diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c index 253b0c09fb02..c8ccf13e3ffb 100644 --- a/fs/nfs/nfs4proc.c +++ b/fs/nfs/nfs4proc.c @@ -2537,6 +2537,8 @@ static int _nfs4_open_and_get_state(struct nfs4_opendata *opendata, goto out; if (server->caps & NFS_CAP_POSIX_LOCK) set_bit(NFS_STATE_POSIX_LOCKS, &state->flags); + if (opendata->o_res.rflags & NFS4_OPEN_RESULT_MAY_NOTIFY_LOCK) + set_bit(NFS_STATE_MAY_NOTIFY_LOCK, &state->flags); dentry = opendata->dentry; if (d_really_is_negative(dentry)) {