ata_host_start (9)   - start and freeze ports of an ATA host
freeze_bdev (9)      - - lock a filesystem and force it into a consistent state
freeze_super (9)     - lock the filesystem and force it into a consistent state
fsfreeze (8)         - suspend access to a filesystem (Ext3/4, ReiserFS, JFS,...
lxc-freeze (1)       - freeze all the container's processes
lxc-unfreeze (1)     - thaw all the container's processes
wait_event_freezable (9) - sleep (or freeze) until a condition gets true
xfs_freeze (8)       - suspend access to an XFS filesystem