Revert "lstat_cache(): print a warning if doing ping-pong between cac…

…he types"

This reverts commit 7734f04.

I guess that the reverted commit, 7734f04, has been in test long
enough, and should now be reverted.  I have not received any info
regarding any debug output of the reverted commit, so lets hope that
the lstat_cache() function do not cause any ping-pong.

Signed-off-by: Kjetil Barvik <barvik@broadpark.no>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

symlinks.c

@@ -51,11 +51,6 @@ static inline void reset_lstat_cache(void)
 	 */
 }
 
-#define SWITCHES_BEFORE_WARNING 10
-static unsigned int cache_switches, number_of_warnings;
-static unsigned int current_cache_func, last_cache_func;
-static unsigned int total_calls;
-
 #define FL_DIR      (1 << 0)
 #define FL_NOENT    (1 << 1)
 #define FL_SYMLINK  (1 << 2)
@@ -82,7 +77,6 @@ static int lstat_cache(const char *name, int len,
 	int match_flags, ret_flags, save_flags, max_len, ret;
 	struct stat st;
 
-	total_calls++;
 	if (cache.track_flags != track_flags ||
 	    cache.prefix_len_stat_func != prefix_len_stat_func) {
 		/*
@@ -94,17 +88,6 @@ static int lstat_cache(const char *name, int len,
 		cache.track_flags = track_flags;
 		cache.prefix_len_stat_func = prefix_len_stat_func;
 		match_len = last_slash = 0;
-		cache_switches++;
-		if (cache_switches > SWITCHES_BEFORE_WARNING) {
-			if (number_of_warnings < 10 || number_of_warnings % 1000 == 0)
-				printf("warning from %s:%d cache_switches:%u > %u "\
-				       "(current:%u last:%u total:%u)\n",
-				       __FILE__, __LINE__,
-				       cache_switches, SWITCHES_BEFORE_WARNING,
-				       current_cache_func, last_cache_func,
-				       total_calls);
-			number_of_warnings++;
-		}
 	} else {
 		/*
 		 * Check to see if we have a match from the cache for
@@ -233,8 +216,6 @@ void clear_lstat_cache(void)
  */
 int has_symlink_leading_path(const char *name, int len)
 {
-	last_cache_func = current_cache_func;
-	current_cache_func = 1;
 	return lstat_cache(name, len,
 			   FL_SYMLINK|FL_DIR, USE_ONLY_LSTAT) &
 		FL_SYMLINK;
@@ -246,8 +227,6 @@ int has_symlink_leading_path(const char *name, int len)
  */
 int has_symlink_or_noent_leading_path(const char *name, int len)
 {
-	last_cache_func = current_cache_func;
-	current_cache_func = 2;
 	return lstat_cache(name, len,
 			   FL_SYMLINK|FL_NOENT|FL_DIR, USE_ONLY_LSTAT) &
 		(FL_SYMLINK|FL_NOENT);
@@ -262,8 +241,6 @@ int has_symlink_or_noent_leading_path(const char *name, int len)
  */
 int has_dirs_only_path(const char *name, int len, int prefix_len)
 {
-	last_cache_func = current_cache_func;
-	current_cache_func = 3;
 	return lstat_cache(name, len,
 			   FL_DIR|FL_FULLPATH, prefix_len) &
 		FL_DIR;