perf block-info: Remove unused refcount

block_info__get() has no callers so the refcount is only ever one. As
such remove the reference counting logic and turn puts to deletes.

Signed-off-by: Ian Rogers <[email protected]>
Cc: Adrian Hunter <[email protected]>
Cc: Alexander Shishkin <[email protected]>
Cc: Andi Kleen <[email protected]>
Cc: Athira Rajeev <[email protected]>
Cc: Ben Gainey <[email protected]>
Cc: Ingo Molnar <[email protected]>
Cc: James Clark <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: K Prateek Nayak <[email protected]>
Cc: Kajol Jain <[email protected]>
Cc: Kan Liang <[email protected]>
Cc: Li Dong <[email protected]>
Cc: Mark Rutland <[email protected]>
Cc: Namhyung Kim <[email protected]>
Cc: Oliver Upton <[email protected]>
Cc: Paran Lee <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Ravi Bangoria <[email protected]>
Cc: Sun Haiyong <[email protected]>
Cc: Tim Chen <[email protected]>
Cc: Yanteng Si <[email protected]>
Cc: Yicong Yang <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>

Author: captain5050

tools/perf/util/block-info.c

@@ -43,26 +43,14 @@ static struct block_header_column {
 	}
 };
 
-struct block_info *block_info__get(struct block_info *bi)
-{
-	if (bi)
-		refcount_inc(&bi->refcnt);
-	return bi;
-}
-
-void block_info__put(struct block_info *bi)
+struct block_info *block_info__new(void)
 {
-	if (bi && refcount_dec_and_test(&bi->refcnt))
-		free(bi);
+	return zalloc(sizeof(struct block_info));
 }
 
-struct block_info *block_info__new(void)
+void block_info__delete(struct block_info *bi)
 {
-	struct block_info *bi = zalloc(sizeof(*bi));
-
-	if (bi)
-		refcount_set(&bi->refcnt, 1);
-	return bi;
+	free(bi);
 }
 
 int64_t __block_info__cmp(struct hist_entry *left, struct hist_entry *right)
@@ -148,7 +136,7 @@ int block_info__process_sym(struct hist_entry *he, struct block_hist *bh,
 			he_block = hists__add_entry_block(&bh->block_hists,
 							  &al, bi);
 			if (!he_block) {
-				block_info__put(bi);
+				block_info__delete(bi);
 				return -1;
 			}
 		}

tools/perf/util/block-info.h

@@ -3,7 +3,6 @@
 #define __PERF_BLOCK_H
 
 #include <linux/types.h>
-#include <linux/refcount.h>
 #include "hist.h"
 #include "symbol.h"
 #include "sort.h"
@@ -19,7 +18,6 @@ struct block_info {
 	u64			total_cycles;
 	int			num;
 	int			num_aggr;
-	refcount_t		refcnt;
 };
 
 struct block_fmt {
@@ -48,19 +46,8 @@ struct block_report {
 	int			nr_fmts;
 };
 
-struct block_hist;
-
 struct block_info *block_info__new(void);
-struct block_info *block_info__get(struct block_info *bi);
-void   block_info__put(struct block_info *bi);
-
-static inline void __block_info__zput(struct block_info **bi)
-{
-	block_info__put(*bi);
-	*bi = NULL;
-}
-
-#define block_info__zput(bi) __block_info__zput(&bi)
+void block_info__delete(struct block_info *bi);
 
 int64_t __block_info__cmp(struct hist_entry *left, struct hist_entry *right);
 

tools/perf/util/hist.c

@@ -631,7 +631,7 @@ static struct hist_entry *hists__findnew_entry(struct hists *hists,
 			 */
 			mem_info__zput(entry->mem_info);
 
-			block_info__zput(entry->block_info);
+			block_info__delete(entry->block_info);
 
 			kvm_info__zput(entry->kvm_info);
 
@@ -1341,7 +1341,7 @@ void hist_entry__delete(struct hist_entry *he)
 	}
 
 	if (he->block_info)
-		block_info__zput(he->block_info);
+		block_info__delete(he->block_info);
 
 	if (he->kvm_info)
 		kvm_info__zput(he->kvm_info);