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From e7ceaa23ed1fd7b5d6d8272081586b7455195426 Mon Sep 17 00:00:00 2001
From: Justus Winter <4winter@informatik.uni-hamburg.de>
Date: Sun, 7 Sep 2014 14:01:38 +0200
Subject: [PATCH] libdiskfs: remove code counting cache misses
* libdiskfs/lookup.c (cache_misses): Remove.
(cm_lock): Likewise.
(diskfs_lookup): Do not count cache misses.
---
libdiskfs/lookup.c | 31 -------------------------------
1 file changed, 31 deletions(-)
diff --git a/libdiskfs/lookup.c b/libdiskfs/lookup.c
index bc2ad01..486fedc 100644
--- a/libdiskfs/lookup.c
+++ b/libdiskfs/lookup.c
@@ -21,17 +21,6 @@
#include "priv.h"
#include <string.h>
-static struct
-{
- int present;
- int absent;
- int errors;
- int dot;
- int dotdot;
-} cache_misses;
-static pthread_spinlock_t cm_lock = PTHREAD_SPINLOCK_INITIALIZER;
-
-
/* Lookup in directory DP (which is locked) the name NAME. TYPE will
either be LOOKUP, CREATE, RENAME, or REMOVE. CRED identifies the
user making the call.
@@ -175,26 +164,6 @@ diskfs_lookup (struct node *dp, const char *name, enum lookup_type type,
else
{
err = diskfs_lookup_hard (dp, name, type, np, ds, cred);
-
- pthread_spin_lock (&cm_lock);
- if (type == LOOKUP)
- {
- if (err == ENOENT)
- cache_misses.absent++;
- else if (err)
- cache_misses.errors++;
- else
- cache_misses.present++;
- if (name[0] == '.')
- {
- if (name[1] == '\0')
- cache_misses.dot++;
- else if (name[1] == '.' && name[2] == '\0')
- cache_misses.dotdot++;
- }
- }
- pthread_spin_unlock (&cm_lock);
-
if (err && err != ENOENT)
return err;
--
2.1.0
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