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VFS_SYNC (9) | Kernel routines | Unix Manual Pages | :man

NAME

VFS_SYNC - flush unwritten data

CONTENTS

Synopsis
Description
See Also
Authors

SYNOPSIS


.In sys/param.h
.In sys/mount.h
.In sys/vnode.h int VFS_SYNC "struct mount *mp" "int waitfor" "struct ucred *cred" "struct thread *td"

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
cred The caller’s credentials.
td The calling thread.

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


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