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-rw-r--r--fs/btrfs/volumes.c21
1 files changed, 21 insertions, 0 deletions
diff --git a/fs/btrfs/volumes.c b/fs/btrfs/volumes.c
index 9b2dafa..a6df8fd 100644
--- a/fs/btrfs/volumes.c
+++ b/fs/btrfs/volumes.c
@@ -3400,6 +3400,7 @@ static int __btrfs_balance(struct btrfs_fs_info *fs_info)
u32 count_data = 0;
u32 count_meta = 0;
u32 count_sys = 0;
+ int chunk_reserved = 0;
/* step one make some room on all the devices */
devices = &fs_info->fs_devices->devices;
@@ -3501,6 +3502,7 @@ again:
ret = should_balance_chunk(chunk_root, leaf, chunk,
found_key.offset);
+
btrfs_release_path(path);
if (!ret) {
mutex_unlock(&fs_info->delete_unused_bgs_mutex);
@@ -3537,6 +3539,25 @@ again:
goto loop;
}
+ if ((chunk_type & BTRFS_BLOCK_GROUP_DATA) && !chunk_reserved) {
+ trans = btrfs_start_transaction(chunk_root, 0);
+ if (IS_ERR(trans)) {
+ mutex_unlock(&fs_info->delete_unused_bgs_mutex);
+ ret = PTR_ERR(trans);
+ goto error;
+ }
+
+ ret = btrfs_force_chunk_alloc(trans, chunk_root,
+ BTRFS_BLOCK_GROUP_DATA);
+ if (ret < 0) {
+ mutex_unlock(&fs_info->delete_unused_bgs_mutex);
+ goto error;
+ }
+
+ btrfs_end_transaction(trans, chunk_root);
+ chunk_reserved = 1;
+ }
+
ret = btrfs_relocate_chunk(chunk_root,
found_key.offset);
mutex_unlock(&fs_info->delete_unused_bgs_mutex);
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