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 4D77CCA0ECD for ; Mon, 11 Sep 2023 22:00:12 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S243703AbjIKV7J (ORCPT ); Mon, 11 Sep 2023 17:59:09 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:53762 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S239887AbjIKOaz (ORCPT ); Mon, 11 Sep 2023 10:30:55 -0400 Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id D9C3EE4B for ; Mon, 11 Sep 2023 07:30:50 -0700 (PDT) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 2DB7AC433C8; Mon, 11 Sep 2023 14:30:50 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1694442650; bh=99NYLAl3ELDwe/Isvz2IYO6IYT2tDbm4Nyrjv2K4fQc=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=k2OOxemp2t4EiTuhPvLSVtpLuTyMLcqLtRy4DD/jKSxSRyjkQV6slSx49uX0tpTgQ puiG0pGevYsTD89GLPb5G/xbbctddzWhOCI0HjeRDgVxm9tMHU7nlcyZFupdELlI/L W0qjYFIOhd9vmO84WxRH6/+DFRBokiEgv0ainTkc= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, =?UTF-8?q?Ahelenia=20Ziemia=C5=84ska?= , Jan Kara , Amir Goldstein , Christian Brauner , Sasha Levin Subject: [PATCH 6.4 100/737] splice: fsnotify_access(in), fsnotify_modify(out) on success in tee Date: Mon, 11 Sep 2023 15:39:19 +0200 Message-ID: <20230911134653.307359256@linuxfoundation.org> X-Mailer: git-send-email 2.42.0 In-Reply-To: <20230911134650.286315610@linuxfoundation.org> References: <20230911134650.286315610@linuxfoundation.org> User-Agent: quilt/0.67 X-stable: review X-Patchwork-Hint: ignore MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org 6.4-stable review patch. If anyone has any objections, please let me know. ------------------ From: Ahelenia Ziemiańska [ Upstream commit 576d498e0ac5caff2d9f6312573ab54d98f12d32 ] Same logic applies here: this can fill up the pipe, and pollers that rely on getting IN_MODIFY notifications never wake up. Fixes: 983652c69199 ("splice: report related fsnotify events") Link: https://lore.kernel.org/linux-fsdevel/jbyihkyk5dtaohdwjyivambb2gffyjs3dodpofafnkkunxq7bu@jngkdxx65pux/t/#u Link: https://bugs.debian.org/1039488 Signed-off-by: Ahelenia Ziemiańska Acked-by: Jan Kara Reviewed-by: Amir Goldstein Message-Id: <10d76dd8c85017ae3cd047c9b9a32e26daefdaa2.1688393619.git.nabijaczleweli@nabijaczleweli.xyz> Signed-off-by: Christian Brauner Signed-off-by: Sasha Levin --- fs/splice.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/fs/splice.c b/fs/splice.c index c08eb445a1d20..3ae2de263e806 100644 --- a/fs/splice.c +++ b/fs/splice.c @@ -1815,6 +1815,11 @@ long do_tee(struct file *in, struct file *out, size_t len, unsigned int flags) } } + if (ret > 0) { + fsnotify_access(in); + fsnotify_modify(out); + } + return ret; } -- 2.40.1