SYNC(2-SVR4)        RISC/os Reference Manual         SYNC(2-SVR4)



NAME
     sync - update super block

SYNOPSIS
     #include <unistd.h>

     void sync(void);

DESCRIPTION
     sync causes all information in memory that should be on disk
     to be written out.  This includes modified super blocks,
     modified i-nodes, and delayed block I/O.

     It should be used by programs that examine a file system,
     such as fsck(1M), df(1M), etc.  It is mandatory before a
     re-boot.

     The writing, although scheduled, is not necessarily com-
     pleted before sync returns.  The fsync(2) system call com-
     pletes the writing before it returns.

SEE ALSO
     fsync(2)
































                        Printed 11/19/92                   Page 1