Commit bcbba5e6 authored by Wang Shilong's avatar Wang Shilong Committed by Josef Bacik
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Btrfs: skip readonly root for snapshot-aware defragment 



Btrfs send is assuming readonly root won't change, let's skip readonly root.

Signed-off-by: default avatarWang Shilong <wangsl.fnst@cn.fujitsu.com>
Signed-off-by: default avatarJosef Bacik <jbacik@fb.com>
parent 850a8cdf

fs/btrfs/inode.c

+5 −0
Original line number Diff line number Diff line
@@ -2240,6 +2240,11 @@ static noinline int relink_extent_backref(struct btrfs_path *path, 
		return PTR_ERR(root);

	}



	if (btrfs_root_readonly(root)) {

		srcu_read_unlock(&fs_info->subvol_srcu, index);

		return 0;

	}



	/* step 2: get inode */

	key.objectid = backref->inum;

	key.type = BTRFS_INODE_ITEM_KEY;