Return-Path: 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 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> Sender: linux-nfs-owner@vger.kernel.org List-ID: 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)) { -- 2.7.4