72    struct block_allocator_chunk* p;  in allocate_new_chunk()  local
77    p = VG_(malloc)("drd.bitmap.bac",  in allocate_new_chunk()
78                    sizeof(*p) + NODES_PER_CHUNCK * s_bm2_node_size);  in allocate_new_chunk()
79    tl_assert(p);  in allocate_new_chunk()
80    p->next = s_first;  in allocate_new_chunk()
82       p->next->prev = p;  in allocate_new_chunk()
83    s_first = p;  in allocate_new_chunk()
84    p->prev = 0;  in allocate_new_chunk()
85    p->nallocated = 0;  in allocate_new_chunk()
86    p->data = (char*)p + sizeof(*p);  in allocate_new_chunk()
87    tl_assert(p->data);  in allocate_new_chunk()
88    p->data_end = (char*)(p->data) + NODES_PER_CHUNCK * s_bm2_node_size;  in allocate_new_chunk()
89    p->first_free = p->data;  in allocate_new_chunk()
92       *(void**)((char*)(p->data) + i * s_bm2_node_size)  in allocate_new_chunk()
93          = (char*)(p->data) + (i + 1) * s_bm2_node_size;  in allocate_new_chunk()
96    *(void**)((char*)(p->data) + i * s_bm2_node_size) = NULL;  in allocate_new_chunk()
98    return p;  in allocate_new_chunk()
102 static void free_chunk(struct block_allocator_chunk* const p)  in free_chunk()  argument
104    tl_assert(p);  in free_chunk()
105    tl_assert(p->nallocated == 0);  in free_chunk()
107    if (p == s_first)  in free_chunk()
108       s_first = p->next;  in free_chunk()
109    else if (p->prev)  in free_chunk()
110       p->prev->next = p->next;  in free_chunk()
111    if (p->next)  in free_chunk()
112       p->next->prev = p->prev;  in free_chunk()
113    VG_(free)(p);  in free_chunk()
131       struct block_allocator_chunk* p;  in DRD_()  local
138       for (p = s_first; p; p = p->next)  in DRD_()
140          if (p->first_free)  in DRD_()
144             p->nallocated++;  in DRD_()
145             result = p->first_free;  in DRD_()
146             p->first_free = *(void**)(p->first_free);  in DRD_()
158    struct block_allocator_chunk* p;  in DRD_()  local
163       for (p = s_first; p; p = p->next) {  in DRD_()
164 	 if (p->data <= bm2 && bm2 < p->data_end) {  in DRD_()
166 	    tl_assert(((char*)bm2 - (char*)(p->data)) % s_bm2_node_size == 0);  in DRD_()
167 	    *(void**)bm2 = p->first_free;  in DRD_()
168 	    p->first_free = bm2;  in DRD_()
169 	    tl_assert(p->nallocated >= 1);  in DRD_()
170 	    if (--(p->nallocated) == 0)  in DRD_()
171 	       free_chunk(p);  in DRD_()