A cheatsheet to fixing up xfs issues.
Check what the filesystem type is:
df -T
xfs_repair requires the folder to be unmounted, both to fix the device and to check for errors.
umount /home
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