A cheatsheet to fixing up xfs issues.
Check what the filesystem type is:
xfs_repair requires the folder to be unmounted, both to fix the device and to check for errors.
If the folder is busy and you need to find out which processes are in it:
fuser -um /home
Kill the processes:
fuser -km /home
If you need to install fuser:
yum install psmisc
Check for errors on the device:
xfs_repair -n /dev/sda5