From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from aserp2130.oracle.com ([141.146.126.79]:55964 "EHLO aserp2130.oracle.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1730008AbeGPPWs (ORCPT ); Mon, 16 Jul 2018 11:22:48 -0400 Received: from pps.filterd (aserp2130.oracle.com [127.0.0.1]) by aserp2130.oracle.com (8.16.0.22/8.16.0.22) with SMTP id w6GEriNv058628 for ; Mon, 16 Jul 2018 14:55:00 GMT Received: from userv0021.oracle.com (userv0021.oracle.com [156.151.31.71]) by aserp2130.oracle.com with ESMTP id 2k7a3svtc5-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK) for ; Mon, 16 Jul 2018 14:55:00 +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 w6GEsx6l007603 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK) for ; Mon, 16 Jul 2018 14:54:59 GMT Received: from abhmp0018.oracle.com (abhmp0018.oracle.com [141.146.116.24]) by aserv0121.oracle.com (8.14.4/8.13.8) with ESMTP id w6GEswMf025602 for ; Mon, 16 Jul 2018 14:54:58 GMT From: Anand Jain To: linux-btrfs@vger.kernel.org Subject: [PATCH 4/7] btrfs: use the assigned fs_devices instead of the dereference Date: Mon, 16 Jul 2018 22:58:09 +0800 Message-Id: <20180716145812.20836-5-anand.jain@oracle.com> In-Reply-To: <20180716145812.20836-1-anand.jain@oracle.com> References: <20180716145812.20836-1-anand.jain@oracle.com> Sender: linux-btrfs-owner@vger.kernel.org List-ID: We have assigned the %fs_info->fs_devices in %fs_devices as its not modified just use it for the mutex_lock(). Signed-off-by: Anand Jain --- I don't see this in the ML at all, I remember sending this. Anyway I am marking this as V1. fs/btrfs/volumes.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/fs/btrfs/volumes.c b/fs/btrfs/volumes.c index c6f3f0dfbabe..7f4973fc2b52 100644 --- a/fs/btrfs/volumes.c +++ b/fs/btrfs/volumes.c @@ -2199,7 +2199,7 @@ static int btrfs_prepare_sprout(struct btrfs_fs_info *fs_info) INIT_LIST_HEAD(&seed_devices->alloc_list); mutex_init(&seed_devices->device_list_mutex); - mutex_lock(&fs_info->fs_devices->device_list_mutex); + mutex_lock(&fs_devices->device_list_mutex); list_splice_init_rcu(&fs_devices->devices, &seed_devices->devices, synchronize_rcu); list_for_each_entry(device, &seed_devices->devices, dev_list) @@ -2219,7 +2219,7 @@ static int btrfs_prepare_sprout(struct btrfs_fs_info *fs_info) generate_random_uuid(fs_devices->fsid); memcpy(fs_info->fsid, fs_devices->fsid, BTRFS_FSID_SIZE); memcpy(disk_super->fsid, fs_devices->fsid, BTRFS_FSID_SIZE); - mutex_unlock(&fs_info->fs_devices->device_list_mutex); + mutex_unlock(&fs_devices->device_list_mutex); super_flags = btrfs_super_flags(disk_super) & ~BTRFS_SUPER_FLAG_SEEDING; -- 2.7.0