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 8D65EC64ED6 for ; Mon, 27 Feb 2023 02:40:37 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229665AbjB0Ckg (ORCPT ); Sun, 26 Feb 2023 21:40:36 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:60876 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229620AbjB0CkT (ORCPT ); Sun, 26 Feb 2023 21:40:19 -0500 Received: from ams.source.kernel.org (ams.source.kernel.org [IPv6:2604:1380:4601:e00::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 2FA01D524; Sun, 26 Feb 2023 18:39:57 -0800 (PST) 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 ams.source.kernel.org (Postfix) with ESMTPS id D79E5B80D15; Mon, 27 Feb 2023 02:11:30 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 10C00C4339B; Mon, 27 Feb 2023 02:11:28 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1677463889; bh=7aJE/n3JKkOSrjq+Uk7kU0lMVZJ6wJFMUR+Pn/32Wt8=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=HolqxsM/A10bJkEMkNU6qJUrBYEwG9RBnuEEwvS45SwuM5Fih6+oIP6fkXg/3fq3Y KGqiewzFow/et/ykag/2R5K8jgEwsNlP8ilELkhCHCRKsjg9uKO4B2erCJfxSQSpC8 Slp6itImunNDBNADefVdh8iMcGt5V7x4ZDl1Lphv6hlyLezEx8xvgUyVqfcKX8Czdy DBXHh606xSq0aFpUpXJ6oTxG+PBPIRZg8XZCfXzRAnnaZl439LJT9UuD3sYc8LeNQn AXftoi24qcFWOJbViS28pD765oCxd4KOj9WEvrqz2hfO0LQX1TnSrsL5NK/N15OsOE n3ezL1xEkQGXQ== From: Sasha Levin To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: Mike Snitzer , Sasha Levin , agk@redhat.com, dm-devel@redhat.com Subject: [PATCH AUTOSEL 4.19 09/10] dm thin: add cond_resched() to various workqueue loops Date: Sun, 26 Feb 2023 21:11:06 -0500 Message-Id: <20230227021110.1053474-9-sashal@kernel.org> X-Mailer: git-send-email 2.39.0 In-Reply-To: <20230227021110.1053474-1-sashal@kernel.org> References: <20230227021110.1053474-1-sashal@kernel.org> MIME-Version: 1.0 X-stable: review X-Patchwork-Hint: Ignore Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Mike Snitzer [ Upstream commit e4f80303c2353952e6e980b23914e4214487f2a6 ] Otherwise on resource constrained systems these workqueues may be too greedy. Signed-off-by: Mike Snitzer Signed-off-by: Sasha Levin --- drivers/md/dm-thin.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/md/dm-thin.c b/drivers/md/dm-thin.c index 386cb33953783..969ea013c74e4 100644 --- a/drivers/md/dm-thin.c +++ b/drivers/md/dm-thin.c @@ -2222,6 +2222,7 @@ static void process_thin_deferred_bios(struct thin_c *tc) throttle_work_update(&pool->throttle); dm_pool_issue_prefetches(pool->pmd); } + cond_resched(); } blk_finish_plug(&plug); } @@ -2305,6 +2306,7 @@ static void process_thin_deferred_cells(struct thin_c *tc) else pool->process_cell(tc, cell); } + cond_resched(); } while (!list_empty(&cells)); } -- 2.39.0