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-rw-r--r--fs/coda/stats.c416
1 files changed, 0 insertions, 416 deletions
diff --git a/fs/coda/stats.c b/fs/coda/stats.c
deleted file mode 100644
index d4a8b2e9b..000000000
--- a/fs/coda/stats.c
+++ /dev/null
@@ -1,416 +0,0 @@
-/*
- * stats.c
- *
- * CODA operation statistics
- *
- * (c) March, 1998 Zhanyong Wan <zhanyong.wan@yale.edu>
- *
- */
-
-#include <linux/sched.h>
-#include <linux/mm.h>
-#include <linux/sysctl.h>
-#include <linux/swapctl.h>
-#include <linux/proc_fs.h>
-#include <linux/malloc.h>
-#include <linux/stat.h>
-#include <linux/ctype.h>
-#include <asm/bitops.h>
-#include <asm/segment.h>
-#include <asm/uaccess.h>
-#include <linux/utsname.h>
-
-#include <linux/coda.h>
-#include <linux/coda_linux.h>
-#include <linux/coda_fs_i.h>
-#include <linux/coda_psdev.h>
-#include <linux/coda_cache.h>
-#include <linux/coda_proc.h>
-
-struct coda_vfs_stats coda_vfs_stat;
-struct coda_permission_stats coda_permission_stat;
-struct coda_cache_inv_stats coda_cache_inv_stat;
-struct coda_upcall_stats_entry coda_upcall_stat[CODA_NCALLS];
-
-/* keep this in sync with coda.h! */
-char *coda_upcall_names[] = {
- "totals ", /* 0 */
- "noop ", /* 1 */
- "root ", /* 2 */
- "sync ", /* 3 */
- "open ", /* 4 */
- "close ", /* 5 */
- "ioctl ", /* 6 */
- "getattr ", /* 7 */
- "setattr ", /* 8 */
- "access ", /* 9 */
- "lookup ", /* 10 */
- "create ", /* 11 */
- "remove ", /* 12 */
- "link ", /* 13 */
- "rename ", /* 14 */
- "mkdir ", /* 15 */
- "rmdir ", /* 16 */
- "readdir ", /* 17 */
- "symlink ", /* 18 */
- "readlink ", /* 19 */
- "fsync ", /* 20 */
- "inactive ", /* 21 */
- "vget ", /* 22 */
- "signal ", /* 23 */
- "replace ", /* 24 */
- "flush ", /* 25 */
- "purgeuser ", /* 26 */
- "zapfile ", /* 27 */
- "zapdir ", /* 28 */
- "zapvnode ", /* 28 */
- "purgefid ", /* 30 */
- "open_by_path" /* 31 */
-};
-
-
-
-
-void reset_coda_vfs_stats( void )
-{
- memset( &coda_vfs_stat, 0, sizeof( coda_vfs_stat ) );
-}
-
-#if 0
-static void reset_upcall_entry( struct coda_upcall_stats_entry * pentry )
-{
- pentry->count = 0;
- pentry->time_sum = pentry->time_squared_sum = 0;
-}
-#endif
-
-void reset_coda_upcall_stats( void )
-{
- memset( &coda_upcall_stat, 0, sizeof( coda_upcall_stat ) );
-}
-
-void reset_coda_permission_stats( void )
-{
- memset( &coda_permission_stat, 0, sizeof( coda_permission_stat ) );
-}
-
-void reset_coda_cache_inv_stats( void )
-{
- memset( &coda_cache_inv_stat, 0, sizeof( coda_cache_inv_stat ) );
-}
-
-
-void do_time_stats( struct coda_upcall_stats_entry * pentry,
- unsigned long runtime )
-{
-
- unsigned long time = runtime * 1000 /HZ; /* time in ms */
- CDEBUG(D_SPECIAL, "time: %ld\n", time);
-
- if ( pentry->count == 0 ) {
- pentry->time_sum = pentry->time_squared_sum = 0;
- }
-
- pentry->count++;
- pentry->time_sum += time;
- pentry->time_squared_sum += time*time;
-}
-
-
-
-void coda_upcall_stats(int opcode, long unsigned runtime)
-{
- struct coda_upcall_stats_entry * pentry;
-
- if ( opcode < 0 || opcode > CODA_NCALLS - 1) {
- printk("Nasty opcode %d passed to coda_upcall_stats\n",
- opcode);
- return;
- }
-
- pentry = &coda_upcall_stat[opcode];
- do_time_stats(pentry, runtime);
-
- /* fill in the totals */
- pentry = &coda_upcall_stat[0];
- do_time_stats(pentry, runtime);
-
-}
-
-unsigned long get_time_average( const struct coda_upcall_stats_entry * pentry )
-{
- return ( pentry->count == 0 ) ? 0 : pentry->time_sum / pentry->count;
-}
-
-static inline unsigned long absolute( unsigned long x )
-{
- return x >= 0 ? x : -x;
-}
-
-static unsigned long sqr_root( unsigned long x )
-{
- unsigned long y = x, r;
- int n_bit = 0;
-
- if ( x == 0 )
- return 0;
- if ( x < 0)
- x = -x;
-
- while ( y ) {
- y >>= 1;
- n_bit++;
- }
-
- r = 1 << (n_bit/2);
-
- while ( 1 ) {
- r = (r + x/r)/2;
- if ( r*r <= x && x < (r+1)*(r+1) )
- break;
- }
-
- return r;
-}
-
-unsigned long get_time_std_deviation( const struct coda_upcall_stats_entry * pentry )
-{
- unsigned long time_avg;
-
- if ( pentry->count <= 1 )
- return 0;
-
- time_avg = get_time_average( pentry );
- return
- sqr_root( (pentry->time_squared_sum / pentry->count) -
- time_avg * time_avg );
-}
-
-int do_reset_coda_vfs_stats( ctl_table * table, int write, struct file * filp,
- void * buffer, size_t * lenp )
-{
- if ( write ) {
- reset_coda_vfs_stats();
- }
-
- *lenp = 0;
- return 0;
-}
-
-int do_reset_coda_upcall_stats( ctl_table * table, int write,
- struct file * filp, void * buffer,
- size_t * lenp )
-{
- if ( write ) {
- reset_coda_upcall_stats();
- }
-
- *lenp = 0;
- return 0;
-}
-
-int do_reset_coda_permission_stats( ctl_table * table, int write,
- struct file * filp, void * buffer,
- size_t * lenp )
-{
- if ( write ) {
- reset_coda_permission_stats();
- }
-
- *lenp = 0;
- return 0;
-}
-
-int do_reset_coda_cache_inv_stats( ctl_table * table, int write,
- struct file * filp, void * buffer,
- size_t * lenp )
-{
- if ( write ) {
- reset_coda_cache_inv_stats();
- }
-
- *lenp = 0;
- return 0;
-}
-
-int coda_vfs_stats_get_info( char * buffer, char ** start, off_t offset,
- int length, int dummy )
-{
- int len=0;
- off_t begin;
- struct coda_vfs_stats * ps = & coda_vfs_stat;
-
- /* this works as long as we are below 1024 characters! */
- len += sprintf( buffer,
- "Coda VFS statistics\n"
- "===================\n\n"
- "File Operations:\n"
- "\tfile_read\t%9d\n"
- "\tfile_write\t%9d\n"
- "\tfile_mmap\t%9d\n"
- "\topen\t\t%9d\n"
- "\trelase\t\t%9d\n"
- "\tfsync\t\t%9d\n\n"
- "Dir Operations:\n"
- "\treaddir\t\t%9d\n\n"
- "Inode Operations\n"
- "\tcreate\t\t%9d\n"
- "\tlookup\t\t%9d\n"
- "\tlink\t\t%9d\n"
- "\tunlink\t\t%9d\n"
- "\tsymlink\t\t%9d\n"
- "\tmkdir\t\t%9d\n"
- "\trmdir\t\t%9d\n"
- "\trename\t\t%9d\n"
- "\tpermission\t%9d\n"
- "\treadpage\t%9d\n",
-
- /* file operations */
- ps->file_read,
- ps->file_write,
- ps->file_mmap,
- ps->open,
- ps->release,
- ps->fsync,
-
- /* dir operations */
- ps->readdir,
-
- /* inode operations */
- ps->create,
- ps->lookup,
- ps->link,
- ps->unlink,
- ps->symlink,
- ps->mkdir,
- ps->rmdir,
- ps->rename,
- ps->permission,
- ps->readpage );
-
- begin = offset;
- *start = buffer + begin;
- len -= begin;
-
- if ( len > length )
- len = length;
- if ( len < 0 )
- len = 0;
-
- return len;
-}
-
-int coda_upcall_stats_get_info( char * buffer, char ** start, off_t offset,
- int length, int dummy )
-{
- int len=0;
- int i;
- off_t begin;
- off_t pos = 0;
- char tmpbuf[80];
- int tmplen = 0;
-
- ENTRY;
- /* this works as long as we are below 1024 characters! */
- if ( offset < 80 )
- len += sprintf( buffer,"%-79s\n", "Coda upcall statistics");
- if ( offset < 160)
- len += sprintf( buffer + len,"%-79s\n", "======================");
- if ( offset < 240)
- len += sprintf( buffer + len,"%-79s\n", "upcall\t\t count\tavg time(ms)\tstd deviation(ms)");
- if ( offset < 320)
- len += sprintf( buffer + len,"%-79s\n", "------\t\t -----\t------------\t-----------------");
- pos = 320;
- for ( i = 0 ; i < CODA_NCALLS ; i++ ) {
- tmplen += sprintf(tmpbuf,"%s\t%9d\t%10ld\t%10ld",
- coda_upcall_names[i],
- coda_upcall_stat[i].count,
- get_time_average(&coda_upcall_stat[i]),
- coda_upcall_stat[i].time_squared_sum);
- pos += 80;
- if ( pos < offset )
- continue;
- len += sprintf(buffer + len, "%-79s\n", tmpbuf);
- if ( len >= length )
- break;
- }
-
- begin = len- (pos - offset);
- *start = buffer + begin;
- len -= begin;
-
- if ( len > length )
- len = length;
- if ( len < 0 )
- len = 0;
- EXIT;
- return len;
-}
-
-int coda_permission_stats_get_info( char * buffer, char ** start, off_t offset,
- int length, int dummy )
-{
- int len=0;
- off_t begin;
- struct coda_permission_stats * ps = & coda_permission_stat;
-
- /* this works as long as we are below 1024 characters! */
- len += sprintf( buffer,
- "Coda permission statistics\n"
- "==========================\n\n"
- "count\t\t%9d\n"
- "hit count\t%9d\n",
-
- ps->count,
- ps->hit_count );
-
- begin = offset;
- *start = buffer + begin;
- len -= begin;
-
- if ( len > length )
- len = length;
- if ( len < 0 )
- len = 0;
-
- return len;
-}
-
-int coda_cache_inv_stats_get_info( char * buffer, char ** start, off_t offset,
- int length, int dummy )
-{
- int len=0;
- off_t begin;
- struct coda_cache_inv_stats * ps = & coda_cache_inv_stat;
-
- /* this works as long as we are below 1024 characters! */
- len += sprintf( buffer,
- "Coda cache invalidation statistics\n"
- "==================================\n\n"
- "flush\t\t%9d\n"
- "purge user\t%9d\n"
- "zap_dir\t\t%9d\n"
- "zap_file\t%9d\n"
- "zap_vnode\t%9d\n"
- "purge_fid\t%9d\n"
- "replace\t\t%9d\n",
- ps->flush,
- ps->purge_user,
- ps->zap_dir,
- ps->zap_file,
- ps->zap_vnode,
- ps->purge_fid,
- ps->replace );
-
- begin = offset;
- *start = buffer + begin;
- len -= begin;
-
- if ( len > length )
- len = length;
- if ( len < 0 )
- len = 0;
-
- return len;
-}
-
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