From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from userp2130.oracle.com ([156.151.31.86]:52236 "EHLO userp2130.oracle.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755943AbeAIORf (ORCPT ); Tue, 9 Jan 2018 09:17:35 -0500 Received: from pps.filterd (userp2130.oracle.com [127.0.0.1]) by userp2130.oracle.com (8.16.0.22/8.16.0.22) with SMTP id w09EGXwD151442 for ; Tue, 9 Jan 2018 14:17:34 GMT Received: from userv0021.oracle.com (userv0021.oracle.com [156.151.31.71]) by userp2130.oracle.com with ESMTP id 2fcsdn1k78-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK) for ; Tue, 09 Jan 2018 14:17:34 +0000 Received: from aserv0121.oracle.com (aserv0121.oracle.com [141.146.126.235]) by userv0021.oracle.com (8.14.4/8.14.4) with ESMTP id w09ECXYJ017004 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=FAIL) for ; Tue, 9 Jan 2018 14:12:33 GMT Received: from abhmp0012.oracle.com (abhmp0012.oracle.com [141.146.116.18]) by aserv0121.oracle.com (8.14.4/8.13.8) with ESMTP id w09ECX7v022985 for ; Tue, 9 Jan 2018 14:12:33 GMT From: Anand Jain To: linux-btrfs@vger.kernel.org Subject: [PATCH 4/6] btrfs: make btrfs_free_stale_device() argument optional Date: Tue, 9 Jan 2018 22:13:12 +0800 Message-Id: <20180109141314.23795-5-anand.jain@oracle.com> In-Reply-To: <20180109141314.23795-1-anand.jain@oracle.com> References: <20180109141314.23795-1-anand.jain@oracle.com> Sender: linux-btrfs-owner@vger.kernel.org List-ID: From: Anand Jain This updates btrfs_free_stale_device() helper function to delete all unmouted devices, when arg is NULL. Signed-off-by: Anand Jain --- fs/btrfs/volumes.c | 14 ++++++-------- 1 file changed, 6 insertions(+), 8 deletions(-) diff --git a/fs/btrfs/volumes.c b/fs/btrfs/volumes.c index 7b253da6c0a4..7646f8860096 100644 --- a/fs/btrfs/volumes.c +++ b/fs/btrfs/volumes.c @@ -611,9 +611,6 @@ static void btrfs_free_stale_device(struct btrfs_device *cur_dev) struct btrfs_fs_devices *fs_devs, *tmp_fs_devs; struct btrfs_device *dev, *tmp_dev; - if (!cur_dev->name) - return; - list_for_each_entry_safe(fs_devs, tmp_fs_devs, &fs_uuids, list) { if (fs_devs->opened) @@ -623,9 +620,7 @@ static void btrfs_free_stale_device(struct btrfs_device *cur_dev) &fs_devs->devices, dev_list) { int not_found; - if (dev == cur_dev) - continue; - if (!dev->name) + if (cur_dev && (cur_dev == dev || !dev->name)) continue; /* @@ -635,8 +630,11 @@ static void btrfs_free_stale_device(struct btrfs_device *cur_dev) * either use mapper or non mapper path throughout. */ rcu_read_lock(); - not_found = strcmp(rcu_str_deref(dev->name), - rcu_str_deref(cur_dev->name)); + if (cur_dev) + not_found = strcmp(rcu_str_deref(dev->name), + rcu_str_deref(cur_dev->name)); + else + not_found = 0; rcu_read_unlock(); if (not_found) continue; -- 2.7.0