(_int_malloc): Use full list insert and not shortcut which assumes the
authordrepper <drepper>
Thu, 31 Aug 2006 16:57:49 +0000 (16:57 +0000)
committerdrepper <drepper>
Thu, 31 Aug 2006 16:57:49 +0000 (16:57 +0000)
list is empty for large requests too.

malloc/malloc.c

index d37e521..206f3e1 100644 (file)
@@ -4230,8 +4230,14 @@ _int_malloc(mstate av, size_t bytes)
         /* Split */
         else {
           remainder = chunk_at_offset(victim, nb);
-          unsorted_chunks(av)->bk = unsorted_chunks(av)->fd = remainder;
-          remainder->bk = remainder->fd = unsorted_chunks(av);
+          /* We cannot assume the unsorted list is empty and therefore
+             have to perform a complete insert here.  */
+         bck = unsorted_chunks(av);
+         fwd = bck->fd;
+         remainder->bk = bck;
+         remainder->fd = fwd;
+         bck->fd = remainder;
+         fwd->bk = remainder;
           set_head(victim, nb | PREV_INUSE |
                   (av != &main_arena ? NON_MAIN_ARENA : 0));
           set_head(remainder, remainder_size | PREV_INUSE);