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Remove unused global statistic about fat cache usage.

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Tested by:	pho
MFC after:	3 weeks
This commit is contained in:
Konstantin Belousov 2010-02-28 17:06:42 +00:00
parent 22e62e7e6e
commit 35fcc0662b
1 changed files with 0 additions and 21 deletions
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21
sys/fs/msdosfs/msdosfs_fat.c
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@ -60,19 +60,6 @@
#include <fs/msdosfs/fat.h>
#include <fs/msdosfs/msdosfsmount.h>
/*
* Fat cache stats.
*/
static int fc_fileextends; /* # of file extends */
static int fc_lfcempty; /* # of time last file cluster cache entry
* was empty */
static int fc_bmapcalls; /* # of times pcbmap was called */
#define LMMAX 20
static int fc_lmdistance[LMMAX];/* counters for how far off the last
* cluster mapped entry was. */
static int fc_largedistance; /* off by more than LMMAX */
static int chainalloc(struct msdosfsmount *pmp, u_long start,
u_long count, u_long fillwith, u_long *retcluster,
u_long *got);
@ -152,8 +139,6 @@ pcbmap(dep, findcn, bnp, cnp, sp)
struct msdosfsmount *pmp = dep->de_pmp;
u_long bsize;
fc_bmapcalls++;
/*
* If they don't give us someplace to return a value then don't
* bother doing anything.
@ -203,10 +188,6 @@ pcbmap(dep, findcn, bnp, cnp, sp)
*/
i = 0;
fc_lookup(dep, findcn, &i, &cn);
if ((bn = findcn - i) >= LMMAX)
fc_largedistance++;
else
fc_lmdistance[bn]++;
/*
* Handle all other files or directories the normal way.
@ -992,10 +973,8 @@ extendfile(dep, count, bpp, ncp, flags)
* If the "file's last cluster" cache entry is empty, and the file
* is not empty, then fill the cache entry by calling pcbmap().
*/
fc_fileextends++;
if (dep->de_fc[FC_LASTFC].fc_frcn == FCE_EMPTY &&
dep->de_StartCluster != 0) {
fc_lfcempty++;
error = pcbmap(dep, 0xffff, 0, &cn, 0);
/* we expect it to return E2BIG */
if (error != E2BIG)