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path: root/fs/btrfs/extent-tree.c
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Diffstat (limited to 'fs/btrfs/extent-tree.c')
-rw-r--r--fs/btrfs/extent-tree.c10
1 files changed, 7 insertions, 3 deletions
diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c
index 3c8e68da9ef8..1bbb204c8a5d 100644
--- a/fs/btrfs/extent-tree.c
+++ b/fs/btrfs/extent-tree.c
@@ -8344,9 +8344,15 @@ static void __link_block_group(struct btrfs_space_info *space_info,
struct btrfs_block_group_cache *cache)
{
int index = get_block_group_index(cache);
+ bool first = false;
down_write(&space_info->groups_sem);
- if (list_empty(&space_info->block_groups[index])) {
+ if (list_empty(&space_info->block_groups[index]))
+ first = true;
+ list_add_tail(&cache->list, &space_info->block_groups[index]);
+ up_write(&space_info->groups_sem);
+
+ if (first) {
struct kobject *kobj = &space_info->block_group_kobjs[index];
int ret;
@@ -8358,8 +8364,6 @@ static void __link_block_group(struct btrfs_space_info *space_info,
kobject_put(&space_info->kobj);
}
}
- list_add_tail(&cache->list, &space_info->block_groups[index]);
- up_write(&space_info->groups_sem);
}
static struct btrfs_block_group_cache *