Comment 3 for bug 1576451

Description of problem:
See bug 1313377

Instead of reporting 4096, the kernel reports 1 for
cat /sys/dev/block/8:0/queue/discard_granularity

Version-Release number of selected component (if applicable):
4.4.2-301.fc23.x86_64
4.4.3-300.fc23.x86_64

Not affected: 4.3.5-300.fc23.x86_64

Additional info:
This makes lvremove not discard logical volumes, since it assumes that the granularity is always bigger or equal to 512 for devices supporting discard/trim.