Error: fsync: invalid argument

/home/.ipfs/blocks/CIQMJ:
CIQMJCAMEI4UXBQ35CUDVVJOGU3DNWNHI7O7JCWHWNMUWPGKPOTLFYY.data

/home/.ipfs/blocks/CIQMK:
CIQMKGZXBKZV262ZN6ABE4SUO5BNGKVSPTGAQXSOC35UUK7FUPIIAIY.data

/home/.ipfs/blocks/CIQMI:
CIQMI5TLEXEWEYC3G3WELU6ONMKNLAF6CZUXU5BTWEU453LHPTUNNEI.data //coming from mounted device.
CIQMIRQGFPT23SZ6XYFFU45GLZENEWRYI7PR3YJ7EP7ZC6I4ME7GPFQ.data //newly added file

sudo mount -t cifs //<ip_address>/mybloc /home/ipfs_blocks -o username=admin,password=my_password,uid=1000
cd ~/.ipfs/blocks/
for d in */ ; do
    if [ ! -d /home/ipfs_blocks/$d ]; then
        mkdir /home/ipfs_blocks/$d
        cp $d/* /home/netlab/ipfs_blocks/$d/
        rm /home/.ipfs/blocks/$d/*
        sudo umount /home/ipfs_blocks/$d
        sudo mount -t cifs //<ip_address>/mybloc/$d ~/.ipfs/blocks/$d -o username=admin,password= my_password,uid=1000
    fi
done

cd /home/ipfs_blocks
for d in */ ; do
    sudo mount -t cifs //<ip_address>/mybloc/$d ~/.ipfs/blocks/$d -o username=admin,password=my_password,uid=1000
done
cd