Author: kib
Date: Sun Feb 28 17:06:42 2010
New Revision: 204465
URL: http://svn.freebsd.org/changeset/base/204465
Log:
Remove unused global statistic about fat cache usage.
Tested by: pho
MFC after: 3 weeks
Modified:
head/sys/fs/msdosfs/msdosfs_fat.c
Modified: head/sys/fs/msdosfs/msdosfs_fat.c
==============================================================================
--- head/sys/fs/msdosfs/msdosfs_fat.c Sun Feb 28 16:25:49 2010
(r204464)
+++ head/sys/fs/msdosfs/msdosfs_fat.c Sun Feb 28 17:06:42 2010
(r204465)
@@ -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)
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