2 files changed, 9 insertions, 1 deletions

diff --git a/fs/btrfs/ioctl.c b/fs/btrfs/ioctl.c
index 2f6d7b13b5bd..c6c8e3560e73 100644
--- a/fs/btrfs/ioctl.c
+++ b/fs/btrfs/ioctl.c
@@ -2574,6 +2574,10 @@ static long btrfs_ioctl_fs_info(struct btrfs_root *root, void __user *arg)
         }
         mutex_unlock(&fs_devices->device_list_mutex);
 
+        fi_args->nodesize = root->fs_info->super_copy->nodesize;
+        fi_args->sectorsize = root->fs_info->super_copy->sectorsize;
+        fi_args->clone_alignment = root->fs_info->super_copy->sectorsize;
+
         if (copy_to_user(arg, fi_args, sizeof(*fi_args)))
                 ret = -EFAULT;
 
diff --git a/include/uapi/linux/btrfs.h b/include/uapi/linux/btrfs.h
index 901a3c563f60..7554fd381a56 100644
--- a/include/uapi/linux/btrfs.h
+++ b/include/uapi/linux/btrfs.h
@@ -181,7 +181,11 @@ struct btrfs_ioctl_fs_info_args {
         __u64 max_id;                           /* out */
         __u64 num_devices;                      /* out */
         __u8 fsid[BTRFS_FSID_SIZE];             /* out */
-        __u64 reserved[124];                    /* pad to 1k */
+        __u32 nodesize;                         /* out */
+        __u32 sectorsize;                       /* out */
+        __u32 clone_alignment;                  /* out */
+        __u32 reserved32;
+        __u64 reserved[122];                    /* pad to 1k */
 };
 
 struct btrfs_ioctl_feature_flags {