Copyright (c) 1980 Regents of the University of California.
All rights reserved. The Berkeley software License Agreement
specifies the terms and conditions for redistribution.
@(#)sync.2 6.2 (Berkeley) 06/30/85
All rights reserved. The Berkeley software License Agreement
specifies the terms and conditions for redistribution.
@(#)sync.2 6.2 (Berkeley) 06/30/85
SYNC 2 ""
C 4 NAME
sync - update super-block
SYNOPSIS
sync() 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 ALSO"
fsync(2), sync(8), update(8)
BUGS
The writing, although scheduled, is not necessarily
complete upon return from
sync .