diff options
| -rw-r--r-- | fs/btrfs/disk-io.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c index 67e7b0ccdea0..43af9f9b8583 100644 --- a/fs/btrfs/disk-io.c +++ b/fs/btrfs/disk-io.c @@ -1513,8 +1513,10 @@ int btrfs_insert_fs_root(struct btrfs_fs_info *fs_info, ret = radix_tree_insert(&fs_info->fs_roots_radix, (unsigned long)root->root_key.objectid, root); - if (ret == 0) + if (ret == 0) { + btrfs_grab_fs_root(root); set_bit(BTRFS_ROOT_IN_RADIX, &root->state); + } spin_unlock(&fs_info->fs_roots_radix_lock); radix_tree_preload_end(); @@ -3817,6 +3819,8 @@ void btrfs_drop_and_free_fs_root(struct btrfs_fs_info *fs_info, spin_lock(&fs_info->fs_roots_radix_lock); radix_tree_delete(&fs_info->fs_roots_radix, (unsigned long)root->root_key.objectid); + if (test_and_clear_bit(BTRFS_ROOT_IN_RADIX, &root->state)) + btrfs_put_fs_root(root); spin_unlock(&fs_info->fs_roots_radix_lock); if (btrfs_root_refs(&root->root_item) == 0) |