Provided by: freebsd-manpages_10.1~RC1-1_all bug


     vinvalbuf — flushes and invalidates all buffers associated with a vnode


     #include <sys/param.h>
     #include <sys/vnode.h>

     vinvalbuf(struct vnode *vp, int flags, struct ucred *cred, int slpflag, int slptimeo);


     The vinvalbuf() function invalidates all of the buffers associated with the given vnode.
     This includes buffers on the clean list and the dirty list.  If the V_SAVE flag is specified
     then the buffers on the dirty list are synced prior to being released.  If there is a VM
     Object associated with the vnode, it is removed.

     Its arguments are:

     vp        A pointer to the vnode whose buffers will be invalidated.

     flags     The only supported flag is V_SAVE and it indicates that dirty buffers should be
               synced with the disk.

     cred      The user credentials that are used to VOP_FSYNC(9) buffers if V_SAVE is set.

     slpflag   The slp flag that will be used in the priority of any sleeps in the function.

     slptimeo  The timeout for any sleeps in the function.


     The vnode is assumed to be locked prior to the call and remains locked upon return.

     Giant must be held by prior to the call and remains locked upon return.


     A 0 value is returned on success.


           vn_lock(devvp, LK_EXCLUSIVE | LK_RETRY);
           error = vinvalbuf(devvp, V_SAVE, cred, 0, 0);
           VOP_UNLOCK(devvp, 0);
           if (error)
                   return (error);


     [ENOSPC]           The file system is full.  (With V_SAVE)

     [EDQUOT]           Disc quota exceeded.  (With V_SAVE)

     [EWOULDBLOCK]      Sleep operation timed out.  (See slptimeo)

     [ERESTART]         A signal needs to be delivered and the system call should be restarted.
                        (With PCATCH set in slpflag)

     [EINTR]            The system has been interrupted by a signal.  (With PCATCH set in


     tsleep(9), VOP_FSYNC(9)


     This manual page was written by Chad David <>.