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/* libdiskfs implementation of fs.defs: file_syncfs
Copyright (C) 1992, 1993, 1994, 1995, 1996 Free Software Foundation
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License as
published by the Free Software Foundation; either version 2, or (at
your option) any later version.
This program is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
#include "priv.h"
#include "fs_S.h"
#include <hurd/fsys.h>
/* Implement file_syncfs as described in <hurd/fs.defs>. */
kern_return_t
diskfs_S_file_syncfs (struct protid *cred,
int wait,
int dochildren)
{
error_t
helper (struct node *np)
{
error_t err;
mach_port_t control;
err = fshelp_fetch_control (&np->transbox, &control);
pthread_mutex_unlock (&np->lock);
if (!err && (control != MACH_PORT_NULL))
{
fsys_syncfs (control, wait, 1);
mach_port_deallocate (mach_task_self (), control);
}
pthread_mutex_lock (&np->lock);
return 0;
}
if (!cred)
return EOPNOTSUPP;
if (dochildren)
diskfs_node_iterate (helper);
if (diskfs_synchronous)
wait = 1;
if (! diskfs_readonly)
{
diskfs_sync_everything (wait);
diskfs_set_hypermetadata (wait, 0);
}
return 0;
}
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