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-rw-r--r--fs/nilfs2/sufile.h54
1 files changed, 54 insertions, 0 deletions
diff --git a/fs/nilfs2/sufile.h b/fs/nilfs2/sufile.h
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+++ b/fs/nilfs2/sufile.h
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+/*
+ * sufile.h - NILFS segment usage file.
+ *
+ * Copyright (C) 2006-2008 Nippon Telegraph and Telephone Corporation.
+ *
+ * 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 of the License, 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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ *
+ * Written by Koji Sato <koji@osrg.net>.
+ */
+
+#ifndef _NILFS_SUFILE_H
+#define _NILFS_SUFILE_H
+
+#include <linux/fs.h>
+#include <linux/buffer_head.h>
+#include <linux/nilfs2_fs.h>
+#include "mdt.h"
+
+#define NILFS_SUFILE_GFP NILFS_MDT_GFP
+
+static inline unsigned long nilfs_sufile_get_nsegments(struct inode *sufile)
+{
+ return NILFS_MDT(sufile)->mi_nilfs->ns_nsegments;
+}
+
+int nilfs_sufile_alloc(struct inode *, __u64 *);
+int nilfs_sufile_cancel_free(struct inode *, __u64);
+int nilfs_sufile_freev(struct inode *, __u64 *, size_t);
+int nilfs_sufile_free(struct inode *, __u64);
+int nilfs_sufile_get_segment_usage(struct inode *, __u64,
+ struct nilfs_segment_usage **,
+ struct buffer_head **);
+void nilfs_sufile_put_segment_usage(struct inode *, __u64,
+ struct buffer_head *);
+int nilfs_sufile_get_stat(struct inode *, struct nilfs_sustat *);
+int nilfs_sufile_get_ncleansegs(struct inode *, unsigned long *);
+int nilfs_sufile_set_error(struct inode *, __u64);
+ssize_t nilfs_sufile_get_suinfo(struct inode *, __u64, struct nilfs_suinfo *,
+ size_t);
+
+
+#endif /* _NILFS_SUFILE_H */