This commit was manufactured by cvs2svn to create branch 'vserver'.

[linux-2.6.git] / fs / xfs / linux-2.6 / xfs_fs_subr.c

diff --git a/fs/xfs/linux-2.6/xfs_fs_subr.c b/fs/xfs/linux-2.6/xfs_fs_subr.c
new file mode 100644 (file)
index 0000000..afad970
--- /dev/null
+++ b/fs/xfs/linux-2.6/xfs_fs_subr.c
@@ -0,0 +1,124 @@
+/*
+ * Copyright (c) 2000-2002 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"
+
+/*
+ * Stub for no-op vnode operations that return error status.
+ */
+int
+fs_noerr()
+{
+       return 0;
+}
+
+/*
+ * Operation unsupported under this file system.
+ */
+int
+fs_nosys()
+{
+       return ENOSYS;
+}
+
+/*
+ * Stub for inactive, strategy, and read/write lock/unlock.  Does nothing.
+ */
+/* ARGSUSED */
+void
+fs_noval()
+{
+}
+
+/*
+ * vnode pcache layer for vnode_tosspages.
+ * 'last' parameter unused but left in for IRIX compatibility
+ */
+void
+fs_tosspages(
+       bhv_desc_t      *bdp,
+       xfs_off_t       first,
+       xfs_off_t       last,
+       int             fiopt)
+{
+       vnode_t         *vp = BHV_TO_VNODE(bdp);
+       struct inode    *ip = LINVFS_GET_IP(vp);
+
+       if (VN_CACHED(vp))
+               truncate_inode_pages(ip->i_mapping, first);
+}
+
+
+/*
+ * vnode pcache layer for vnode_flushinval_pages.
+ * 'last' parameter unused but left in for IRIX compatibility
+ */
+void
+fs_flushinval_pages(
+       bhv_desc_t      *bdp,
+       xfs_off_t       first,
+       xfs_off_t       last,
+       int             fiopt)
+{
+       vnode_t         *vp = BHV_TO_VNODE(bdp);
+       struct inode    *ip = LINVFS_GET_IP(vp);
+
+       if (VN_CACHED(vp)) {
+               filemap_fdatawrite(ip->i_mapping);
+               filemap_fdatawait(ip->i_mapping);
+
+               truncate_inode_pages(ip->i_mapping, first);
+       }
+}
+
+/*
+ * vnode pcache layer for vnode_flush_pages.
+ * 'last' parameter unused but left in for IRIX compatibility
+ */
+int
+fs_flush_pages(
+       bhv_desc_t      *bdp,
+       xfs_off_t       first,
+       xfs_off_t       last,
+       uint64_t        flags,
+       int             fiopt)
+{
+       vnode_t         *vp = BHV_TO_VNODE(bdp);
+       struct inode    *ip = LINVFS_GET_IP(vp);
+
+       if (VN_CACHED(vp)) {
+               filemap_fdatawrite(ip->i_mapping);
+               filemap_fdatawait(ip->i_mapping);
+       }
+
+       return 0;
+}