SYNC(2)SYNC(2)NAMEsync - update super-block
SYNOPSISsync()DESCRIPTION
Sync causes all information in core memory that should be on disk to be
written out. This includes modified super blocks, modified i-nodes,
and delayed block I/O.
Sync should be used by programs that examine a file system, for example
fsck, df, etc. Sync is mandatory before a boot.
SEE ALSOfsync(2), sync(8), update(8)BUGS
The writing, although scheduled, is not necessarily complete upon
return from sync.
4th Berkeley Distribution June 30, 1985 SYNC(2)