55 lines
1.9 KiB
C
55 lines
1.9 KiB
C
/*
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* sufile.h - NILFS segment usage file.
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*
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* Copyright (C) 2006-2008 Nippon Telegraph and Telephone Corporation.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*
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* Written by Koji Sato <koji@osrg.net>.
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*/
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#ifndef _NILFS_SUFILE_H
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#define _NILFS_SUFILE_H
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#include <linux/fs.h>
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#include <linux/buffer_head.h>
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#include <linux/nilfs2_fs.h>
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#include "mdt.h"
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#define NILFS_SUFILE_GFP NILFS_MDT_GFP
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static inline unsigned long nilfs_sufile_get_nsegments(struct inode *sufile)
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{
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return NILFS_MDT(sufile)->mi_nilfs->ns_nsegments;
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}
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int nilfs_sufile_alloc(struct inode *, __u64 *);
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int nilfs_sufile_cancel_free(struct inode *, __u64);
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int nilfs_sufile_freev(struct inode *, __u64 *, size_t);
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int nilfs_sufile_free(struct inode *, __u64);
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int nilfs_sufile_get_segment_usage(struct inode *, __u64,
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struct nilfs_segment_usage **,
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struct buffer_head **);
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void nilfs_sufile_put_segment_usage(struct inode *, __u64,
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struct buffer_head *);
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int nilfs_sufile_get_stat(struct inode *, struct nilfs_sustat *);
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int nilfs_sufile_get_ncleansegs(struct inode *, unsigned long *);
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int nilfs_sufile_set_error(struct inode *, __u64);
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ssize_t nilfs_sufile_get_suinfo(struct inode *, __u64, struct nilfs_suinfo *,
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size_t);
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#endif /* _NILFS_SUFILE_H */
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