From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 00BCBC433F5 for ; Tue, 12 Apr 2022 06:49:11 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1350895AbiDLGvZ (ORCPT ); Tue, 12 Apr 2022 02:51:25 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:40146 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1351622AbiDLGpZ (ORCPT ); Tue, 12 Apr 2022 02:45:25 -0400 Received: from dfw.source.kernel.org (dfw.source.kernel.org [IPv6:2604:1380:4641:c500::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id B796B3B3C1; Mon, 11 Apr 2022 23:38:51 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id 3000561902; Tue, 12 Apr 2022 06:38:51 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 3075BC385A6; Tue, 12 Apr 2022 06:38:49 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1649745530; bh=l+2BCsZPps0iWEc5fLeoKlrLnZL6zo6XHbcO9pBOeM0=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=X+zz49oc9fvcOcCYBF43OMVQxYtTMzhiRqc30i4ul6A2/uO834bEftrgD1IWJgCSL hamtFO/TxZAPV2/3GOW/smxE9sFN3cJF9a731Kzh4pxumeKxptmy+cytJ64lX3FVMc rtowG5M8mlRSH8o2d4eMUqVv8Clglr1/shkUXOIM= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Trond Myklebust , Sasha Levin Subject: [PATCH 5.10 128/171] SUNRPC: Handle low memory situations in call_status() Date: Tue, 12 Apr 2022 08:30:19 +0200 Message-Id: <20220412062931.588126018@linuxfoundation.org> X-Mailer: git-send-email 2.35.1 In-Reply-To: <20220412062927.870347203@linuxfoundation.org> References: <20220412062927.870347203@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Trond Myklebust [ Upstream commit 9d82819d5b065348ce623f196bf601028e22ed00 ] We need to handle ENFILE, ENOBUFS, and ENOMEM, because xprt_wake_pending_tasks() can be called with any one of these due to socket creation failures. Fixes: b61d59fffd3e ("SUNRPC: xs_tcp_connect_worker{4,6}: merge common code") Signed-off-by: Trond Myklebust Signed-off-by: Sasha Levin --- net/sunrpc/clnt.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/net/sunrpc/clnt.c b/net/sunrpc/clnt.c index bae42ada8c10..c5af31312e0c 100644 --- a/net/sunrpc/clnt.c +++ b/net/sunrpc/clnt.c @@ -2342,6 +2342,11 @@ call_status(struct rpc_task *task) case -EPIPE: case -EAGAIN: break; + case -ENFILE: + case -ENOBUFS: + case -ENOMEM: + rpc_delay(task, HZ>>2); + break; case -EIO: /* shutdown or soft timeout */ goto out_exit; -- 2.35.1