VOP_FSYNC.9freebsd

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Version: 365449 (ubuntu - 25/10/10)

Section: 9 (Appels noyau Linux)


BSD mandoc

NAME

VOP_FSYNC - flush file system buffers for a file

SYNOPSIS

In sys/param.h In sys/vnode.h Ft int Fn VOP_FSYNC struct vnode *vp int waitfor struct thread *td

DESCRIPTION

This call flushes any dirty file system buffers for the file. It is used to implement the sync(2) and fsync(2) system calls.

Its arguments are:

Fa vp
The vnode of the file.
Fa 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.
Fa td
The calling thread.

The argument Fa waitfor is either MNT_WAIT or MNT_NOWAIT and specifies whether or not the function should wait for the writes to finish before returning.

LOCKS

The file should be locked on entry.

RETURN VALUES

Zero is returned if the call is successful, otherwise an appropriate error code is returned.

ERRORS

Bq Er ENOSPC
The file system is full.
Bq Er EDQUOT
Quota exceeded.

SEE ALSO

vnode(9)

AUTHORS

This manual page was written by An Doug Rabson .