1/* 2 * coda_statis.h 3 * 4 * CODA operation statistics 5 * 6 * (c) March, 1998 7 * by Michihiro Kuramochi, Zhenyu Xia and Zhanyong Wan 8 * zhanyong.wan@yale.edu 9 * 10 */ 11 12#ifndef _CODA_PROC_H 13#define _CODA_PROC_H 14 15void coda_sysctl_init(void); 16void coda_sysctl_clean(void); 17 18#include <linux/sysctl.h> 19#include <linux/coda_fs_i.h> 20#include <linux/coda.h> 21 22/* these four files are presented to show the result of the statistics: 23 * 24 * /proc/fs/coda/vfs_stats 25 * cache_inv_stats 26 * 27 * these four files are presented to reset the statistics to 0: 28 * 29 * /proc/sys/coda/vfs_stats 30 * cache_inv_stats 31 */ 32 33/* VFS operation statistics */ 34struct coda_vfs_stats 35{ 36 /* file operations */ 37 int open; 38 int flush; 39 int release; 40 int fsync; 41 42 /* dir operations */ 43 int readdir; 44 45 /* inode operations */ 46 int create; 47 int lookup; 48 int link; 49 int unlink; 50 int symlink; 51 int mkdir; 52 int rmdir; 53 int rename; 54 int permission; 55 56 /* symlink operatoins*/ 57 int follow_link; 58 int readlink; 59}; 60 61/* cache invalidation statistics */ 62struct coda_cache_inv_stats 63{ 64 int flush; 65 int purge_user; 66 int zap_dir; 67 int zap_file; 68 int zap_vnode; 69 int purge_fid; 70 int replace; 71}; 72 73/* these global variables hold the actual statistics data */ 74extern struct coda_vfs_stats coda_vfs_stat; 75 76#endif /* _CODA_PROC_H */ 77