Copyright (c) 1996 Doug Rabson All rights reserved. This program is free software. Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met: 1. Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer. 2. Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in...
NAMEVFS_SYNC - flush unwritten data
SYNOPSISIn sys/param.h In sys/mount.h In sys/vnode.h Ft int Fn VFS_SYNC struct mount *mp int waitfor
DESCRIPTIONThe Fn VFS_SYNC macro writes out all unwritten data in the file system mounted as Fa mp .
The arguments it expects are:
- Fa mp
- The file system.
- Fa waitfor
Whether the function should wait for I/O to complete.
Possible values are:
- synchronously wait for I/O to complete
- start all I/O, but do not wait for it
- push data not written by file system syncer
The Fn VFS_SYNC macro calls the vfs_sync method of the file system, which normally calls VOP_FSYNC9 for all the vnodes in the file system.