SIMPLE SOLUTIONS

VFS_SYNC(9FREEBSD) - man page online | system kernel interfaces

Flush unwritten data.

Chapter
May 23, 2009
VFS_SYNC(9)                       BSD Kernel Developer's Manual                       VFS_SYNC(9)

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.
BSD May 23, 2009 BSD
This manual Reference Other manuals
VFS_SYNC(9freebsd) referred by VFS(9freebsd)
refer to fsync(2) | sync(2) | VFS(9freebsd) | vnode(9freebsd) | VOP_FSYNC(9freebsd)