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-rw-r--r--fs/btrfs/inode-map.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/fs/btrfs/inode-map.c b/fs/btrfs/inode-map.c
index 3262cd1..04f7199 100644
--- a/fs/btrfs/inode-map.c
+++ b/fs/btrfs/inode-map.c
@@ -388,6 +388,12 @@ int btrfs_save_ino_cache(struct btrfs_root *root,
int prealloc;
bool retry = false;
+ /* only fs tree and subvol/snap needs ino cache */
+ if (root->root_key.objectid != BTRFS_FS_TREE_OBJECTID &&
+ (root->root_key.objectid < BTRFS_FIRST_FREE_OBJECTID ||
+ root->root_key.objectid > BTRFS_LAST_FREE_OBJECTID))
+ return 0;
+
path = btrfs_alloc_path();
if (!path)
return -ENOMEM;
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