From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 6952C612E for ; Mon, 3 Apr 2023 14:22:49 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id DD5FBC433D2; Mon, 3 Apr 2023 14:22:48 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1680531769; bh=FPkH9PXy3xWR9So2Q2UJzXlHT9aVVobiwfb7/kLq0bI=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=kaB2/ULixPV0lnPPWu/7XyPLcilQqVA27qTYSpfZVLcXbzCAB2D9yxvEURYDJ4wwX sjca7qT2E4XqpmcWv5rFRkWYBa2BDXLKFf9h86yoD5KxST9W1HxC3Ta9bivRSZDqqr 8VsSFkePBPgk4WT1ws+2Dv7ZDykLogTXTpetjoac= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Trond Myklebust , Anna Schumaker Subject: [PATCH 5.4 094/104] NFSv4: Fix hangs when recovering open state after a server reboot Date: Mon, 3 Apr 2023 16:09:26 +0200 Message-Id: <20230403140407.856701069@linuxfoundation.org> X-Mailer: git-send-email 2.40.0 In-Reply-To: <20230403140403.549815164@linuxfoundation.org> References: <20230403140403.549815164@linuxfoundation.org> User-Agent: quilt/0.67 Precedence: bulk X-Mailing-List: patches@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit From: Trond Myklebust commit 6165a16a5ad9b237bb3131cff4d3c601ccb8f9a3 upstream. When we're using a cached open stateid or a delegation in order to avoid sending a CLAIM_PREVIOUS open RPC call to the server, we don't have a new open stateid to present to update_open_stateid(). Instead rely on nfs4_try_open_cached(), just as if we were doing a normal open. Fixes: d2bfda2e7aa0 ("NFSv4: don't reprocess cached open CLAIM_PREVIOUS") Cc: stable@vger.kernel.org Signed-off-by: Trond Myklebust Signed-off-by: Anna Schumaker Signed-off-by: Greg Kroah-Hartman --- fs/nfs/nfs4proc.c | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) --- a/fs/nfs/nfs4proc.c +++ b/fs/nfs/nfs4proc.c @@ -1934,8 +1934,7 @@ _nfs4_opendata_reclaim_to_nfs4_state(str if (!data->rpc_done) { if (data->rpc_status) return ERR_PTR(data->rpc_status); - /* cached opens have already been processed */ - goto update; + return nfs4_try_open_cached(data); } ret = nfs_refresh_inode(inode, &data->f_attr); @@ -1944,7 +1943,7 @@ _nfs4_opendata_reclaim_to_nfs4_state(str if (data->o_res.delegation_type != 0) nfs4_opendata_check_deleg(data, state); -update: + if (!update_open_stateid(state, &data->o_res.stateid, NULL, data->o_arg.fmode)) return ERR_PTR(-EAGAIN);