How to grow xfs formated disk?

Here is the disk, it is thin provisioned vmware disk, and has been grown from 300 to 800 GB

  *-disk:1
       description: SCSI Disk
       physical id: 0.1.0
       bus info: scsi@2:0.1.0
       logical name: /dev/sdb
       size: 800GiB (858GB)
       capabilities: partitioned partitioned:dos
       configuration: sectorsize=512 signature=4268053f

here is the

df -h

/dev/sdb1                             300G   27G  273G   9% /data

and it stays unchanged when I do this

[evn-mrs-slave]~> xfs_growfs -d /data
meta-data=/dev/sdb1              isize=256    agcount=4, agsize=19660736 blks
         =                       sectsz=512   attr=2
data     =                       bsize=4096   blocks=78642944, imaxpct=25
         =                       sunit=0      swidth=0 blks
naming   =version 2              bsize=4096   ascii-ci=0
log      =internal               bsize=4096   blocks=38399, version=2
         =                       sectsz=512   sunit=0 blks, lazy-count=1
realtime =none                   extsz=4096   blocks=0, rtextents=0
data size unchanged, skipping