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-rw-r--r--fs/btrfs/block-group.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/fs/btrfs/block-group.c b/fs/btrfs/block-group.c
index 9f77565bd..5993b627b 100644
--- a/fs/btrfs/block-group.c
+++ b/fs/btrfs/block-group.c
@@ -1413,7 +1413,8 @@ void btrfs_delete_unused_bgs(struct btrfs_fs_info *fs_info)
* needing to allocate extents from the block group.
*/
used = btrfs_space_info_used(space_info, true);
- if (space_info->total_bytes - block_group->length < used) {
+ if (space_info->total_bytes - block_group->length < used &&
+ block_group->zone_unusable < block_group->length) {
/*
* Add a reference for the list, compensate for the ref
* drop under the "next" label for the