Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S937801AbdCJOG2 (ORCPT ); Fri, 10 Mar 2017 09:06:28 -0500 Received: from shadbolt.e.decadent.org.uk ([88.96.1.126]:42854 "EHLO shadbolt.e.decadent.org.uk" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S933940AbdCJLv0 (ORCPT ); Fri, 10 Mar 2017 06:51:26 -0500 Content-Type: text/plain; charset="UTF-8" Content-Disposition: inline Content-Transfer-Encoding: 8bit MIME-Version: 1.0 From: Ben Hutchings To: linux-kernel@vger.kernel.org, stable@vger.kernel.org CC: akpm@linux-foundation.org, "Daniel Dressler" , "David Sterba" Date: Fri, 10 Mar 2017 11:46:22 +0000 Message-ID: X-Mailer: LinuxStableQueue (scripts by bwh) Subject: [PATCH 3.16 106/370] Btrfs: delayed-inode: replace root args iff only fs_info used In-Reply-To: X-SA-Exim-Connect-IP: 82.70.136.246 X-SA-Exim-Mail-From: ben@decadent.org.uk X-SA-Exim-Scanned: No (on shadbolt.decadent.org.uk); SAEximRunCond expanded to false Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2594 Lines: 80 3.16.42-rc1 review patch. If anyone has any objections, please let me know. ------------------ From: Daniel Dressler commit a585e94895ed8ab2930bfd5186ffd20301b5c703 upstream. This is the second independent patch of a larger project to cleanup btrfs's internal usage of btrfs_root. Many functions take btrfs_root only to grab the fs_info struct. By requiring a root these functions cause programmer overhead. That these functions can accept any valid root is not obvious until inspection. This patch reduces the specificity of such functions to accept the fs_info directly. These patches can be applied independently and thus are not being submitted as a patch series. There should be about 26 patches by the project's completion. Each patch will cleanup between 1 and 34 functions apiece. Each patch covers a single file's functions. This patch affects the following function(s): 1) btrfs_wq_run_delayed_node Signed-off-by: Daniel Dressler Signed-off-by: David Sterba Signed-off-by: Ben Hutchings --- fs/btrfs/delayed-inode.c | 9 +++++---- 1 file changed, 5 insertions(+), 4 deletions(-) --- a/fs/btrfs/delayed-inode.c +++ b/fs/btrfs/delayed-inode.c @@ -1383,7 +1383,7 @@ out: static int btrfs_wq_run_delayed_node(struct btrfs_delayed_root *delayed_root, - struct btrfs_root *root, int nr) + struct btrfs_fs_info *fs_info, int nr) { struct btrfs_async_delayed_work *async_work; @@ -1399,7 +1399,7 @@ static int btrfs_wq_run_delayed_node(str btrfs_async_run_delayed_root, NULL, NULL); async_work->nr = nr; - btrfs_queue_work(root->fs_info->delayed_workers, &async_work->work); + btrfs_queue_work(fs_info->delayed_workers, &async_work->work); return 0; } @@ -1426,6 +1426,7 @@ static int could_end_wait(struct btrfs_d void btrfs_balance_delayed_items(struct btrfs_root *root) { struct btrfs_delayed_root *delayed_root; + struct btrfs_fs_info *fs_info = root->fs_info; delayed_root = btrfs_get_delayed_root(root); @@ -1438,7 +1439,7 @@ void btrfs_balance_delayed_items(struct seq = atomic_read(&delayed_root->items_seq); - ret = btrfs_wq_run_delayed_node(delayed_root, root, 0); + ret = btrfs_wq_run_delayed_node(delayed_root, fs_info, 0); if (ret) return; @@ -1447,7 +1448,7 @@ void btrfs_balance_delayed_items(struct return; } - btrfs_wq_run_delayed_node(delayed_root, root, BTRFS_DELAYED_BATCH); + btrfs_wq_run_delayed_node(delayed_root, fs_info, BTRFS_DELAYED_BATCH); } /* Will return 0 or -ENOMEM */