8b43ac3a57
Reserving 10% of space for hints managers makes sense if the device is shared with other components (like /data or /commitlog). But, if hints directory is mounted on a dedicated storage, it makes sense to reserve much more - 90% was chosen as a sane limit. Whether storage is 'dedicated' or not is based on a simple check if given hints directory is a mount point. Fixes #3516 Signed-off-by: Piotr Sarna <sarna@scylladb.com>