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VFS_SYNC — flush unwritten data
#include <sys/param.h> #include <sys/mount.h> #include <sys/vnode.h> int VFS_SYNC(struct mount *mp, int waitfor);
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.
This manual page was written by Doug Rabson.