commit-graph: fix segfault on e.g. "git status"

diff --git a/pack-objects.h b/pack-objects.h
index 3cd8d1f00a95978a5a8c86805506b9927aefcd0e..6bfacc7d2cedd7f399d7807b7746b6ed66737eed 100644 (file)
--- a/pack-objects.h
+++ b/pack-objects.h
@@ -148,7 +148,11 @@ struct packing_data {
        struct packed_git **in_pack_by_idx;
        struct packed_git **in_pack;
 
-       pthread_mutex_t lock;
+       /*
+        * During packing with multiple threads, protect the in-core
+        * object database from concurrent accesses.
+        */
+       pthread_mutex_t odb_lock;
 
        /*
         * This list contains entries for bases which we know the other side
@@ -168,13 +172,14 @@ struct packing_data {
 
 void prepare_packing_data(struct repository *r, struct packing_data *pdata);
 
+/* Protect access to object database */
 static inline void packing_data_lock(struct packing_data *pdata)
 {
-       pthread_mutex_lock(&pdata->lock);
+       pthread_mutex_lock(&pdata->odb_lock);
 }
 static inline void packing_data_unlock(struct packing_data *pdata)
 {
-       pthread_mutex_unlock(&pdata->lock);
+       pthread_mutex_unlock(&pdata->odb_lock);
 }
 
 struct object_entry *packlist_alloc(struct packing_data *pdata,