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coda_proc.h
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2005-10-13
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/*
* coda_statis.h
*
* CODA operation statistics
*
* (c) March, 1998
* by Michihiro Kuramochi, Zhenyu Xia and Zhanyong Wan
* zhanyong.wan@yale.edu
*
*/
#ifndef _CODA_PROC_H
#define _CODA_PROC_H
void coda_sysctl_init(void);
void coda_sysctl_clean(void);
#include <linux/sysctl.h>
#include <linux/coda_fs_i.h>
#include <linux/coda.h>
/* these four files are presented to show the result of the statistics:
*
* /proc/fs/coda/vfs_stats
* cache_inv_stats
*
* these four files are presented to reset the statistics to 0:
*
* /proc/sys/coda/vfs_stats
* cache_inv_stats
*/
/* VFS operation statistics */
struct coda_vfs_stats
{
/* file operations */
int open;
int flush;
int release;
int fsync;
/* dir operations */
int readdir;
/* inode operations */
int create;
int lookup;
int link;
int unlink;
int symlink;
int mkdir;
int rmdir;
int rename;
int permission;
/* symlink operatoins*/
int follow_link;
int readlink;
};
/* cache invalidation statistics */
struct coda_cache_inv_stats
{
int flush;
int purge_user;
int zap_dir;
int zap_file;
int zap_vnode;
int purge_fid;
int replace;
};
/* these global variables hold the actual statistics data */
extern struct coda_vfs_stats coda_vfs_stat;
#endif /* _CODA_PROC_H */