VFS_SYNC9
Flush unwritten data
Usage
#include <sys/param.h>
#include <sys/mount.h>
#include <sys/vnode.h>
int
VFS_SYNC(struct mount *mp, int waitfor);
Overview
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.
Releases
83 releases since FreeBSD 2.2.2-RELEASE; the text changed 42 times.