From patchwork Thu Jan 27 02:46:29 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: NeilBrown X-Patchwork-Id: 12726125 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 42DC1C433F5 for ; Thu, 27 Jan 2022 02:47:15 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235227AbiA0CrJ (ORCPT ); Wed, 26 Jan 2022 21:47:09 -0500 Received: from smtp-out1.suse.de ([195.135.220.28]:55046 "EHLO smtp-out1.suse.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230049AbiA0CrI (ORCPT ); Wed, 26 Jan 2022 21:47:08 -0500 Received: from imap2.suse-dmz.suse.de (imap2.suse-dmz.suse.de [192.168.254.74]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (P-521) server-digest SHA512) (No client certificate requested) by smtp-out1.suse.de (Postfix) with ESMTPS id AB2D621905; Thu, 27 Jan 2022 02:47:05 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_rsa; t=1643251625; h=from:from:reply-to:date:date:message-id:message-id:to:to:cc:cc: mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding; bh=yDPdolIqP1BqbqmgH35S+RrYDCrJz/kAXtj6i96pLsQ=; b=hAN5Dg0REL/K5jKsVHYqM3X+M7oL7DolmPiPn5nkKXAbr4U3cj5oAi65hMwxiSWo27QmOB cLQTty8i2cI986CYr180STDwieVyetu7kQ3qHdYo7SeahuPrc14qirLFBA73zPbrr4po2f zGgWZWBXgqAPi8k0xRaMTCQlkN1djpM= DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_ed25519; t=1643251625; h=from:from:reply-to:date:date:message-id:message-id:to:to:cc:cc: mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding; bh=yDPdolIqP1BqbqmgH35S+RrYDCrJz/kAXtj6i96pLsQ=; b=x6ydMXUFPK4DvzDKO6csSNrS9nejdxdCvtHG4Sf6wjFPHRmP2fhorasjEjQ6+4R4FunEK1 J47b6RQj8pZ6MXBg== Received: from imap2.suse-dmz.suse.de (imap2.suse-dmz.suse.de [192.168.254.74]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (P-521) server-digest SHA512) (No client certificate requested) by imap2.suse-dmz.suse.de (Postfix) with ESMTPS id E280813E46; Thu, 27 Jan 2022 02:46:58 +0000 (UTC) Received: from dovecot-director2.suse.de ([192.168.254.65]) by imap2.suse-dmz.suse.de with ESMTPSA id d+tYJ6IH8mGjKwAAMHmgww (envelope-from ); Thu, 27 Jan 2022 02:46:58 +0000 Subject: [PATCH 0/9] Remove remaining parts of congestions tracking code. From: NeilBrown To: Andrew Morton , Jaegeuk Kim , Chao Yu , Jeff Layton , Ilya Dryomov , Miklos Szeredi , Trond Myklebust , Anna Schumaker , Ryusuke Konishi , "Darrick J. Wong" , Philipp Reisner , Lars Ellenberg , Paolo Valente , Jens Axboe Cc: linux-mm@kvack.org, linux-nilfs@vger.kernel.org, linux-nfs@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-f2fs-devel@lists.sourceforge.net, linux-ext4@vger.kernel.org, ceph-devel@vger.kernel.org, drbd-dev@lists.linbit.com, linux-kernel@vger.kernel.org, linux-block@vger.kernel.org Date: Thu, 27 Jan 2022 13:46:29 +1100 Message-ID: <164325106958.29787.4865219843242892726.stgit@noble.brown> User-Agent: StGit/0.23 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: ceph-devel@vger.kernel.org Congestion hasn't been reliably tracked for quite some time. Most MM uses of it for guiding writeback decisions were removed in 5.16. Some other uses were removed in 17-rc1. This series removes the remaining places that test for congestion, and the few places which still set it. The second patch touches a few filesystems. I didn't think there was much value in splitting this out by filesystems, but if maintainers would rather I did that, I will. The f2fs, cephfs, fuse, NFS, and block patches can go through the respective trees proving the final patch doesn't land until after they all do - so maybe it should be held for 5.18-rc2 if all the rest lands by 5.18-rc1. Thanks, NeilBrown Acked-by: Jens Axboe --- NeilBrown (9): Remove inode_congested() Remove bdi_congested() and wb_congested() and related functions f2fs: change retry waiting for f2fs_write_single_data_page() f2f2: replace some congestion_wait() calls with io_schedule_timeout() cephfs: don't set/clear bdi_congestion fuse: don't set/clear bdi_congested NFS: remove congestion control. block/bfq-iosched.c: use "false" rather than "BLK_RW_ASYNC" Remove congestion tracking framework. block/bfq-iosched.c | 2 +- drivers/block/drbd/drbd_int.h | 3 -- drivers/block/drbd/drbd_req.c | 3 +- fs/ceph/addr.c | 27 --------------- fs/ceph/super.c | 2 -- fs/ceph/super.h | 2 -- fs/ext2/ialloc.c | 2 -- fs/f2fs/compress.c | 6 ++-- fs/f2fs/data.c | 9 +++-- fs/f2fs/segment.c | 14 ++++---- fs/f2fs/super.c | 8 ++--- fs/fuse/control.c | 17 ---------- fs/fuse/dev.c | 8 ----- fs/nfs/sysctl.c | 7 ---- fs/nfs/write.c | 53 +---------------------------- fs/nilfs2/segbuf.c | 11 ------ fs/xfs/xfs_buf.c | 3 -- include/linux/backing-dev-defs.h | 8 ----- include/linux/backing-dev.h | 28 ---------------- include/linux/nfs_fs.h | 1 - include/linux/nfs_fs_sb.h | 1 - include/trace/events/writeback.h | 28 ---------------- mm/backing-dev.c | 57 -------------------------------- mm/vmscan.c | 4 +-- 24 files changed, 25 insertions(+), 279 deletions(-) -- Signature