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 C9AC3C7EE30 for ; Mon, 27 Feb 2023 02:16:18 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231440AbjB0CPD (ORCPT ); Sun, 26 Feb 2023 21:15:03 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:40762 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231224AbjB0COE (ORCPT ); Sun, 26 Feb 2023 21:14:04 -0500 Received: from dfw.source.kernel.org (dfw.source.kernel.org [IPv6:2604:1380:4641:c500::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id B940A1A497; Sun, 26 Feb 2023 18:11:56 -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 dfw.source.kernel.org (Postfix) with ESMTPS id E0BDA60DB6; Mon, 27 Feb 2023 02:11:48 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id BBBB5C4339B; Mon, 27 Feb 2023 02:11:47 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1677463908; bh=TzYeOkBi/6uFsa5JfvKkTlX4iUTVOLR7WgliN2nuPzg=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=NZdFWw5Bbx4bDLg2Y8PM0crsSdGjv0TdJRj6W00qQlgxsucndY1moQXetkzmgPOVe NFMCpzd9M7oes7YQLnxp58ZysIlcqm6IL3/UbrQipQy8TfBGO+TTjf7ej9/GYDOv2Z XzBRfHUSKt1KSXyHY0+31H8x4bQ0q8mcOk/CdNWZykxeYHQsDcR4LYMS50+jMgvxUx iEU0jOV5BnTrGJhcgiw+AMGewEnlUX55OJk3dmsXuL0H+KTJLa2Lr2EwNck0PC8NuK 0V5B+uRVO96NIBHzAUcUou5GMtQBLn+Y+PySPGWE5RrlQ6J90BANY+22zKmgFv4NFk m8Lp2nLFvovlQ== 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 4.14 8/9] dm thin: add cond_resched() to various workqueue loops Date: Sun, 26 Feb 2023 21:11:30 -0500 Message-Id: <20230227021131.1053662-8-sashal@kernel.org> X-Mailer: git-send-email 2.39.0 In-Reply-To: <20230227021131.1053662-1-sashal@kernel.org> References: <20230227021131.1053662-1-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: linux-kernel@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 6c7fa790c8ae6..fcf1eaafec72d 100644 --- a/drivers/md/dm-thin.c +++ b/drivers/md/dm-thin.c @@ -2233,6 +2233,7 @@ 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); } @@ -2316,6 +2317,7 @@ 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