/* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
 * vim:expandtab:shiftwidth=8:tabstop=8:
 *
 *  Copyright (C) 2002, 2003 Cluster File Systems, Inc.
 *
 *   This file is part of Lustre, http://www.lustre.org.
 *
 *   Lustre 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.
 *
 *   Lustre 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 Lustre; if not, write to the Free Software
 *   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 *
 */
#define DEBUG_SUBSYSTEM S_CLASS

#include <linux/version.h>
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,5,0))
#include <asm/statfs.h>
#endif
#include <linux/lprocfs_status.h>
#include <linux/obd.h>

#ifndef LPROCFS
struct lprocfs_vars lprocfs_obd_vars[]  = { {0} };
struct lprocfs_vars lprocfs_module_vars[] = { {0} };
#else

static inline int lprocfs_filter_statfs(void *data, struct statfs *sfs)
{
        struct obd_device *dev = (struct obd_device *) data;
        LASSERT(dev != NULL);
        return vfs_statfs(dev->u.filter.fo_sb, sfs);
}

DEFINE_LPROCFS_STATFS_FCT(rd_blksize,     lprocfs_filter_statfs);
DEFINE_LPROCFS_STATFS_FCT(rd_kbytestotal, lprocfs_filter_statfs);
DEFINE_LPROCFS_STATFS_FCT(rd_kbytesfree,  lprocfs_filter_statfs);
DEFINE_LPROCFS_STATFS_FCT(rd_filestotal,  lprocfs_filter_statfs);
DEFINE_LPROCFS_STATFS_FCT(rd_filesfree,   lprocfs_filter_statfs);
DEFINE_LPROCFS_STATFS_FCT(rd_filegroups,  lprocfs_filter_statfs);

int rd_fstype(char *page, char **start, off_t off, int count, int *eof,
              void *data)
{
        struct obd_device *dev = (struct obd_device *)data;
        LASSERT(dev != NULL);
        return snprintf(page, count, "%s\n", dev->u.filter.fo_fstype);
}

int lprocfs_filter_rd_mntdev(char *page, char **start, off_t off, int count,
                    int *eof, void *data)
{
        struct obd_device* obd = (struct obd_device *)data;

        LASSERT(obd != NULL);
        LASSERT(obd->u.filter.fo_vfsmnt->mnt_devname);
        *eof = 1;
        return snprintf(page, count, "%s\n", 
                        obd->u.filter.fo_vfsmnt->mnt_devname);
}

struct lprocfs_vars lprocfs_obd_vars[] = {
        { "uuid",        lprocfs_rd_uuid,    0, 0 },
        { "blocksize",   rd_blksize,         0, 0 },
        { "kbytestotal", rd_kbytestotal,     0, 0 },
        { "kbytesfree",  rd_kbytesfree,      0, 0 },
        { "filestotal",  rd_filestotal,      0, 0 },
        { "filesfree",   rd_filesfree,       0, 0 },
        { "filegroups",  rd_filegroups,      0, 0 },
        { "fstype",      rd_fstype,          0, 0 },
        { "mntdev",      lprocfs_filter_rd_mntdev,    0, 0 },
        { 0 }
};

struct lprocfs_vars lprocfs_module_vars[] = {
        { "num_refs",    lprocfs_rd_numrefs, 0, 0 },
        { 0 }
};

#endif /* LPROCFS */
LPROCFS_INIT_VARS(lprocfs_module_vars, lprocfs_obd_vars)