From: Anand Jain <anand.jain@oracle.com>
To: Qu Wenruo <wqu@suse.com>, linux-btrfs@vger.kernel.org
Subject: Re: [PATCH v3 3/3] btrfs: Introduce new incompat feature, BG_TREE, to speed up mount time
Date: Mon, 14 Oct 2019 17:08:05 +0800 [thread overview]
Message-ID: <16b15fd5-cee8-784b-31e9-d5473cd72474@oracle.com> (raw)
In-Reply-To: <20191010023928.24586-4-wqu@suse.com>
> diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c
> index 044981cf6df9..1c5728e6a660 100644
> --- a/fs/btrfs/disk-io.c
> +++ b/fs/btrfs/disk-io.c
> @@ -1570,6 +1570,8 @@ struct btrfs_root *btrfs_get_fs_root(struct btrfs_fs_info *fs_info,
> if (location->objectid == BTRFS_FREE_SPACE_TREE_OBJECTID)
> return fs_info->free_space_root ? fs_info->free_space_root :
> ERR_PTR(-ENOENT);
> + if (location->objectid == BTRFS_BLOCK_GROUP_TREE_OBJECTID)
> + return fs_info->bg_root ? fs_info->bg_root: ERR_PTR(-ENOENT);
An explicit check is better than implicit check for example:
------------
return btrfs_fs_incompat(fs_info, BG_TREE) ? \
fs_info->bg_root : ERR_PTR(-ENOENT);
------------
Thanks, Anand
next prev parent reply other threads:[~2019-10-14 9:09 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-10-10 2:39 [PATCH v3 0/3] btrfs: Introduce new incompat feature BG_TREE to hugely reduce mount time Qu Wenruo
2019-10-10 2:39 ` [PATCH v3 1/3] btrfs: block-group: Fix a memory leak due to missing btrfs_put_block_group() Qu Wenruo
2019-10-10 2:51 ` Anand Jain
2019-10-10 7:20 ` Johannes Thumshirn
2019-10-11 19:23 ` David Sterba
2019-10-10 2:39 ` [PATCH v3 2/3] btrfs: block-group: Refactor btrfs_read_block_groups() Qu Wenruo
2019-10-10 2:52 ` Anand Jain
2019-10-30 4:59 ` Qu WenRuo
2019-11-04 19:53 ` David Sterba
2019-11-04 21:44 ` David Sterba
2019-11-05 0:47 ` Qu Wenruo
2019-11-04 19:55 ` David Sterba
2019-10-10 2:39 ` [PATCH v3 3/3] btrfs: Introduce new incompat feature, BG_TREE, to speed up mount time Qu Wenruo
2019-10-10 5:21 ` Naohiro Aota
2019-10-11 13:23 ` Josef Bacik
2019-10-14 9:08 ` Anand Jain [this message]
2019-10-10 2:40 ` [PATCH v3 0/3] btrfs: Introduce new incompat feature BG_TREE to hugely reduce " Qu WenRuo
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