1 files changed, 75 insertions, 0 deletions
diff --git a/libdiskfs/fsys-syncfs.c b/libdiskfs/fsys-syncfs.c
new file mode 100644
index 00000000..503eea4c
--- /dev/null
+++ b/libdiskfs/fsys-syncfs.c
@@ -0,0 +1,75 @@
+/* 
+   Copyright (C) 1994, 1995, 1996 Free Software Foundation, Inc.
+   Written by Michael I. Bushnell.
+
+   This file is part of the GNU Hurd.
+
+   The GNU Hurd 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.
+
+   The GNU Hurd 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 "fsys_S.h"
+#include <hurd/fsys.h>
+
+/* Implement fsys_syncfs as described in <hurd/fsys.defs>. */
+kern_return_t
+diskfs_S_fsys_syncfs (fsys_t controlport,
+		      mach_port_t reply,
+		      mach_msg_type_name_t replytype,
+		      int wait,
+		      int children)
+{
+  struct port_info *pi = ports_lookup_port (diskfs_port_bucket, controlport,
+					    diskfs_control_class);
+  error_t 
+    helper (struct node *np)
+      {
+	error_t error;
+	mach_port_t control;
+	
+	error = fshelp_fetch_control (&np->transbox, &control);
+	mutex_unlock (&np->lock);
+	if (!error && (control != MACH_PORT_NULL))
+	  {
+	    fsys_syncfs (control, wait, 1);
+	    mach_port_deallocate (mach_task_self (), control);
+	  }
+	mutex_lock (&np->lock);
+	return 0;
+      }
+  
+  if (!pi)
+    return EOPNOTSUPP;
+  
+  rwlock_reader_lock (&diskfs_fsys_lock);
+
+  if (children)
+    diskfs_node_iterate (helper);
+
+  if (diskfs_synchronous)
+    wait = 1;
+  
+  if (! diskfs_readonly)
+    {
+      diskfs_sync_everything (wait);
+      diskfs_set_hypermetadata (wait, 0);
+    }
+
+  rwlock_reader_unlock (&diskfs_fsys_lock);
+
+  ports_port_deref (pi);
+
+  return 0;
+}
+