NAME¶
VFS_SYNC
—
flush unwritten data
SYNOPSIS¶
#include
<sys/param.h>
#include
<sys/mount.h>
#include
<sys/vnode.h>
int
VFS_SYNC
(
struct
mount *mp,
int
waitfor);
DESCRIPTION¶
The
VFS_SYNC
() macro writes out all unwritten
data in the file system mounted as
mp.
The arguments it expects are:
- mp
- The file system.
- waitfor
- Whether the function should wait for I/O to complete. Possible values are:
MNT_WAIT
- synchronously wait for I/O to complete
MNT_NOWAIT
- start all I/O, but do not wait for it
MNT_LAZY
- push data not written by file system syncer
The
VFS_SYNC
() macro calls the
vfs_sync method of the file system, which
normally calls
VOP_FSYNC(9) for all the vnodes in
the file system.
SEE ALSO¶
fsync(2),
sync(2),
VFS(9),
vnode(9),
VOP_FSYNC(9)
AUTHORS¶
This manual page was written by
Doug
Rabson.