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[PATCH 07/12] bisect.c: use commit-slab for commit weight instead of commit->util




It's done so that commit->util can be removed. See more explanation in
the commit that removes commit->util.

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@xxxxxxxxx>
---
 bisect.c | 12 +++++++++---
 1 file changed, 9 insertions(+), 3 deletions(-)

diff --git a/bisect.c b/bisect.c
index a579b50884..6de1abd407 100644
--- a/bisect.c
+++ b/bisect.c
@@ -12,6 +12,7 @@
 #include "bisect.h"
 #include "sha1-array.h"
 #include "argv-array.h"
+#include "commit-slab.h"
 
 static struct oid_array good_revs;
 static struct oid_array skipped_revs;
@@ -70,16 +71,19 @@ static void clear_distance(struct commit_list *list)
 	}
 }
 
+define_commit_slab(commit_weight, int *);
+static struct commit_weight commit_weight;
+
 #define DEBUG_BISECT 0
 
 static inline int weight(struct commit_list *elem)
 {
-	return *((int*)(elem->item->util));
+	return **commit_weight_at(&commit_weight, elem->item);
 }
 
 static inline void weight_set(struct commit_list *elem, int weight)
 {
-	*((int*)(elem->item->util)) = weight;
+	**commit_weight_at(&commit_weight, elem->item) = weight;
 }
 
 static int count_interesting_parents(struct commit *commit)
@@ -265,7 +269,7 @@ static struct commit_list *do_find_bisection(struct commit_list *list,
 		struct commit *commit = p->item;
 		unsigned flags = commit->object.flags;
 
-		p->item->util = &weights[n++];
+		*commit_weight_at(&commit_weight, p->item) = &weights[n++];
 		switch (count_interesting_parents(commit)) {
 		case 0:
 			if (!(flags & TREESAME)) {
@@ -372,6 +376,7 @@ void find_bisection(struct commit_list **commit_list, int *reaches,
 	int *weights;
 
 	show_list("bisection 2 entry", 0, 0, *commit_list);
+	init_commit_weight(&commit_weight);
 
 	/*
 	 * Count the number of total and tree-changing items on the
@@ -412,6 +417,7 @@ void find_bisection(struct commit_list **commit_list, int *reaches,
 	}
 	free(weights);
 	*commit_list = best;
+	clear_commit_weight(&commit_weight);
 }
 
 static int register_ref(const char *refname, const struct object_id *oid,
-- 
2.17.0.705.g3525833791