iommu/arm-smmu: Use incoming shareability attributes in bypass mode

[cascardo/linux.git] / fs / btrfs / extent-tree.c

diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c
index 99a8e57..acf3ed1 100644 (file)
--- a/fs/btrfs/extent-tree.c
+++ b/fs/btrfs/extent-tree.c
@@ -10279,22 +10279,25 @@ void btrfs_delete_unused_bgs(struct btrfs_fs_info *fs_info)
                block_group = list_first_entry(&fs_info->unused_bgs,
                                               struct btrfs_block_group_cache,
                                               bg_list);
-               space_info = block_group->space_info;
                list_del_init(&block_group->bg_list);
+
+               space_info = block_group->space_info;
+
                if (ret || btrfs_mixed_space_info(space_info)) {
                        btrfs_put_block_group(block_group);
                        continue;
                }
                spin_unlock(&fs_info->unused_bgs_lock);
 
-               mutex_lock(&root->fs_info->delete_unused_bgs_mutex);
+               mutex_lock(&fs_info->delete_unused_bgs_mutex);
 
                /* Don't want to race with allocators so take the groups_sem */
                down_write(&space_info->groups_sem);
                spin_lock(&block_group->lock);
                if (block_group->reserved ||
                    btrfs_block_group_used(&block_group->item) ||
-                   block_group->ro) {
+                   block_group->ro ||
+                   list_is_singular(&block_group->list)) {
                        /*
                         * We want to bail if we made new allocations or have
                         * outstanding allocations in this block group.  We do
@@ -10410,7 +10413,7 @@ void btrfs_delete_unused_bgs(struct btrfs_fs_info *fs_info)
 end_trans:
                btrfs_end_transaction(trans, root);
 next:
-               mutex_unlock(&root->fs_info->delete_unused_bgs_mutex);
+               mutex_unlock(&fs_info->delete_unused_bgs_mutex);
                btrfs_put_block_group(block_group);
                spin_lock(&fs_info->unused_bgs_lock);
        }