| SYNC(2) | System Calls | SYNC(2) |
sync — update
super block
#include
<unistd.h>
void
sync(void);
The
sync()
function writes all information in memory that should be on disk, including
modified super blocks, modified inodes, and delayed block I/O.
Unlike
fsync(3C), which completes the writing
before it returns,
sync()
schedules but does not necessarily complete the writing before returning. To
perform a blocking synchronization of a single file system, use the
syncfs(3C) function.
The sync() function should be used by
applications that examine a file system, such as
fsck(8),
df(8), and is mandatory before
rebooting.
fsync(3C), syncfs(3C), attributes(7), standards(7), df(8), fsck(8)
| July 2, 2024 | OmniOS |