tree ede82e7fc5816f183ffab27d1a28261410488b69
parent 226c446979ba88b5d5f05e6442c024d95c5656b0
author Jason Evans <jasone@canonware.com> 1460150277 -0700
committer Jason Evans <jasone@canonware.com> 1463426481 -0700

Refactor runs_avail.

Use pszind_t size classes rather than szind_t size classes, and always
reserve space for NPSIZES elements.  This removes unused heaps that are
not multiples of the page size, and adds (currently) unused heaps for
all huge size classes, with the immediate benefit that the size of
arena_t allocations is constant (no longer dependent on chunk size).