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| Rev | Author | Line No. | Line |
|---|---|---|---|
| 422 | giacomo | 1 | /* |
| 2 | * coda_statis.h |
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| 3 | * |
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| 4 | * CODA operation statistics |
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| 5 | * |
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| 6 | * (c) March, 1998 |
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| 7 | * by Michihiro Kuramochi, Zhenyu Xia and Zhanyong Wan |
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| 8 | * zhanyong.wan@yale.edu |
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| 9 | * |
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| 10 | */ |
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| 11 | |||
| 12 | #ifndef _CODA_PROC_H |
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| 13 | #define _CODA_PROC_H |
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| 14 | |||
| 15 | void coda_sysctl_init(void); |
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| 16 | void coda_sysctl_clean(void); |
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| 17 | |||
| 18 | #include <linux/sysctl.h> |
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| 19 | #include <linux/coda_fs_i.h> |
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| 20 | #include <linux/coda.h> |
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| 21 | |||
| 22 | /* these four files are presented to show the result of the statistics: |
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| 23 | * |
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| 24 | * /proc/fs/coda/vfs_stats |
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| 25 | * cache_inv_stats |
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| 26 | * |
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| 27 | * these four files are presented to reset the statistics to 0: |
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| 28 | * |
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| 29 | * /proc/sys/coda/vfs_stats |
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| 30 | * cache_inv_stats |
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| 31 | */ |
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| 32 | |||
| 33 | /* VFS operation statistics */ |
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| 34 | struct coda_vfs_stats |
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| 35 | { |
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| 36 | /* file operations */ |
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| 37 | int open; |
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| 38 | int flush; |
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| 39 | int release; |
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| 40 | int fsync; |
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| 41 | |||
| 42 | /* dir operations */ |
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| 43 | int readdir; |
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| 44 | |||
| 45 | /* inode operations */ |
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| 46 | int create; |
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| 47 | int lookup; |
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| 48 | int link; |
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| 49 | int unlink; |
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| 50 | int symlink; |
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| 51 | int mkdir; |
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| 52 | int rmdir; |
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| 53 | int rename; |
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| 54 | int permission; |
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| 55 | |||
| 56 | /* symlink operatoins*/ |
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| 57 | int follow_link; |
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| 58 | int readlink; |
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| 59 | }; |
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| 60 | |||
| 61 | /* cache invalidation statistics */ |
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| 62 | struct coda_cache_inv_stats |
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| 63 | { |
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| 64 | int flush; |
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| 65 | int purge_user; |
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| 66 | int zap_dir; |
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| 67 | int zap_file; |
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| 68 | int zap_vnode; |
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| 69 | int purge_fid; |
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| 70 | int replace; |
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| 71 | }; |
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| 72 | |||
| 73 | /* these global variables hold the actual statistics data */ |
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| 74 | extern struct coda_vfs_stats coda_vfs_stat; |
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| 75 | extern struct coda_cache_inv_stats coda_cache_inv_stat; |
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| 76 | |||
| 77 | /* reset statistics to 0 */ |
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| 78 | void reset_coda_vfs_stats( void ); |
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| 79 | void reset_coda_cache_inv_stats( void ); |
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| 80 | |||
| 81 | /* like coda_dointvec, these functions are to be registered in the ctl_table |
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| 82 | * data structure for /proc/sys/... files |
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| 83 | */ |
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| 84 | int do_reset_coda_vfs_stats( ctl_table * table, int write, struct file * filp, |
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| 85 | void * buffer, size_t * lenp ); |
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| 86 | int do_reset_coda_cache_inv_stats( ctl_table * table, int write, |
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| 87 | struct file * filp, void * buffer, |
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| 88 | size_t * lenp ); |
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| 89 | |||
| 90 | /* these functions are called to form the content of /proc/fs/coda/... files */ |
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| 91 | int coda_vfs_stats_get_info( char * buffer, char ** start, off_t offset, |
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| 92 | int length); |
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| 93 | int coda_cache_inv_stats_get_info( char * buffer, char ** start, off_t offset, |
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| 94 | int length); |
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| 95 | |||
| 96 | |||
| 97 | #endif /* _CODA_PROC_H */ |