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 X-Spam-Level: X-Spam-Status: No, score=-3.8 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 09705CA9EB6 for ; Wed, 23 Oct 2019 16:48:00 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id DA51F21925 for ; Wed, 23 Oct 2019 16:47:59 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726350AbfJWQr7 (ORCPT ); Wed, 23 Oct 2019 12:47:59 -0400 Received: from mx2.suse.de ([195.135.220.15]:56954 "EHLO mx1.suse.de" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1726259AbfJWQr6 (ORCPT ); Wed, 23 Oct 2019 12:47:58 -0400 X-Virus-Scanned: by amavisd-new at test-mx.suse.de Received: from relay2.suse.de (unknown [195.135.220.254]) by mx1.suse.de (Postfix) with ESMTP id 48ACEADCB; Wed, 23 Oct 2019 16:47:57 +0000 (UTC) Received: by ds.suse.cz (Postfix, from userid 10065) id 2C256DA734; Wed, 23 Oct 2019 18:48:08 +0200 (CEST) From: David Sterba To: linux-btrfs@vger.kernel.org Cc: David Sterba Subject: [PATCH 0/6] Block group structure cleanups Date: Wed, 23 Oct 2019 18:48:07 +0200 Message-Id: X-Mailer: git-send-email 2.23.0 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Sender: linux-btrfs-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-btrfs@vger.kernel.org The block group cache structure has two embedded members that belong to the on-disk format but were used for the in-memory structures. It's been like that forever and I wonder why nobody was bothered by that. Switch to normal members and rename a few things on along the way. The size of block_group_cache is down from 528 to 504 so it should not fit better to slab pages. Further shrinkage is possible. David Sterba (6): btrfs: move block_group_item::used to block group btrfs: move block_group_item::flags to block group btrfs: remove embedded block_group_cache::item btrfs: rename block_group_item on-stack accessors to follow naming btrfs: rename extent buffer block group item accessors btrfs: add dedicated members for start and length of a block group fs/btrfs/block-group.c | 191 +++++++++++++------------ fs/btrfs/block-group.h | 5 +- fs/btrfs/ctree.h | 12 +- fs/btrfs/extent-tree.c | 31 ++-- fs/btrfs/free-space-cache.c | 39 +++-- fs/btrfs/free-space-tree.c | 83 ++++++----- fs/btrfs/ioctl.c | 5 +- fs/btrfs/print-tree.c | 6 +- fs/btrfs/reada.c | 4 +- fs/btrfs/relocation.c | 18 +-- fs/btrfs/scrub.c | 10 +- fs/btrfs/space-info.c | 3 +- fs/btrfs/sysfs.c | 4 +- fs/btrfs/tests/btrfs-tests.c | 5 +- fs/btrfs/tests/free-space-tree-tests.c | 75 +++++----- fs/btrfs/tree-checker.c | 10 +- fs/btrfs/volumes.c | 19 ++- include/trace/events/btrfs.h | 21 ++- 18 files changed, 264 insertions(+), 277 deletions(-) -- 2.23.0