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/*
* GFS2 glstats file statistics.
*
* Copyright (c) 2013 Red Hat.
*
* 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.
*/
#ifndef GLSTATS_H
#define GLSTATS_H
/*
* GFS2 glock type identification; note that the glock type 7 is currently not
* used and is reserved to be on the safe side.
*
* Type Lock type Use
* 1 Trans Transaction lock
* 2 Inode Inode metadata and data
* 3 Rgrp Resource group metadata
* 4 Meta The superblock
* 5 Iopen Inode last closer detection
* 6 Flock flock(2) syscall
* 8 Quota Quota operations
* 9 Journal Journal mutex
*
*/
enum {
GLSTATS_TOTAL = 0,
GLSTATS_TRANS = 1,
GLSTATS_INODE = 2,
GLSTATS_RGRP = 3,
GLSTATS_META = 4,
GLSTATS_IOPEN = 5,
GLSTATS_FLOCK = 6,
GLSTATS_RESERVED_NOT_USED = 7,
GLSTATS_QUOTA = 8,
GLSTATS_JOURNAL = 9,
NUM_GLSTATS_STATS
};
struct glstats {
__uint64_t values[NUM_GLSTATS_STATS];
};
extern int gfs2_glstats_fetch(int, struct glstats *, pmAtomValue *);
extern int gfs2_refresh_glstats(const char *, const char *, struct glstats *);
#endif /* GLSTATS_H */
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