Remove unused xfs_syncd.c file

fs/xfs/linux/xfs_syncd.c

-/*
- * Copyright (c) 2000-2003 Silicon Graphics, Inc.  All Rights Reserved.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of version 2 of the GNU General Public License as
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it would be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
- *
- * Further, this software is distributed without any warranty that it is
- * free of the rightful claim of any third person regarding infringement
- * or the like.  Any license provided herein, whether implied or
- * otherwise, applies only to this software file.  Patent licenses, if
- * any, provided herein do not apply to combinations of this program with
- * other software, or any other product whatsoever.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write the Free Software Foundation, Inc., 59
- * Temple Place - Suite 330, Boston MA 02111-1307, USA.
- *
- * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
- * Mountain View, CA  94043, or:
- *
- * http://www.sgi.com
- *
- * For further information regarding this notice, see:
- *
- * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
- */
-
-#include <xfs.h>
-
-#define SYNCD_FLAGS	(SYNC_FSDATA|SYNC_BDFLUSH|SYNC_ATTR)
-
-int syncd(void *arg)
-{
-	vfs_t			*vfsp = (vfs_t *) arg;
-	int			error;
-
-	daemonize("xfs_syncd");
-
-	vfsp->vfs_sync_task = current;
-	wmb();
-	wake_up(&vfsp->vfs_wait_sync_task);
-
-	for (;;) {
-		set_current_state(TASK_INTERRUPTIBLE);
-		schedule_timeout(xfs_params.sync_interval);
-		if (vfsp->vfs_flag & VFS_UMOUNT)
-			break;
-		if (vfsp->vfs_flag & VFS_RDONLY);
-			continue;
-		VFS_SYNC(vfsp, SYNCD_FLAGS, NULL, error);
-	}
-
-	vfsp->vfs_sync_task = NULL;
-	wmb();
-	wake_up(&vfsp->vfs_wait_sync_task);
-
-	return 0;
-}
-
-int
-linvfs_start_syncd(vfs_t *vfsp)
-{
-	int pid;
-
-	pid = kernel_thread(syncd, (void *) vfsp,
-			CLONE_VM | CLONE_FS | CLONE_FILES);
-	if (pid < 0)
-		return pid;
-	wait_event(vfsp->vfs_wait_sync_task, vfsp->vfs_sync_task);
-	return 0;
-}
-
-void
-linvfs_stop_syncd(vfs_t *vfsp)
-{
-	vfsp->vfs_flag |= VFS_UMOUNT;
-	wmb();
-
-	wake_up_process(vfsp->vfs_sync_task);
-	wait_event(vfsp->vfs_wait_sync_task, !vfsp->vfs_sync_task);
-}