Get rid of unused field

Signed-off-by: NMaxim Polyakov <polyakov.maksim@huawei.com>
Change-Id: Ic5e182b6e70537e74c4d764aa9140d6fa932f1ab

porting/linux/user/src/internal/malloc_impl.h

@@ -26,7 +26,6 @@ struct chunk {
 	size_t state;
 #endif
 #ifdef MUSL_ITERATE_AND_STATS_API
-	size_t flag;
 	struct chunk *next_occupied, *prev_occupied;
 #endif
 	struct chunk *next, *prev;
@@ -56,7 +55,7 @@ hidden void __pop_chunk(struct chunk *c);
 
 #ifdef MUSL_ITERATE_AND_STATS_API
 #define OCCUPIED_LIST_OVERHEAD (2*sizeof(void*))
-#define ITERATE_AND_STATS_OVERHEAD (sizeof(size_t) + sizeof(void*) + OCCUPIED_LIST_OVERHEAD)
+#define ITERATE_AND_STATS_OVERHEAD (sizeof(void*) + OCCUPIED_LIST_OVERHEAD)
 #else
 #define ITERATE_AND_STATS_OVERHEAD (0)
 #endif

porting/linux/user/src/malloc/malloc.c

@@ -155,7 +155,6 @@ void __push_chunk(struct chunk *c)
 	}
 	occupied_bin->head = c;
 
-	c->flag = 0x00;
 	unlock(occupied_bin->lock);
 }
 
@@ -466,10 +465,10 @@ static struct chunk *expand_heap(size_t n)
 
 	p = __expand_heap(&n);
 	if (!p) {
-		unlock(heap_lock);
 #ifdef MUSL_ITERATE_AND_STATS_API
 		unlock(total_heap_space_inc_lock);
 #endif
+		unlock(heap_lock);
 		return 0;
 	}
 
@@ -1271,15 +1270,6 @@ void internal_free(void *p)
 
 	struct chunk *self = MEM_TO_CHUNK(p);
 #ifdef MUSL_ITERATE_AND_STATS_API
-#if 0
-	lock(pop_merge_lock);
-	if (self->flag == 0x01) {
-		unlock(pop_merge_lock);
-		return;
-	}
-	self->flag = 0x01;
-	unlock(pop_merge_lock);
-#endif
 	__pop_chunk(self);
 #endif