[PATCH] malloc: Cleanup sysmalloc_mmap

[DJ Delorie]

Wilco Dijkstra <Wilco.Dijkstra@arm.com> writes:
> Cleanup sysmalloc_mmap - simplify alignment code since it is always a constant.
> Remove av parameter which is only used in do_check_chunk, but since it may be
> NULL for mmap, it will cause a crash in checking mode.  Remove the odd check on
> mmap in do_check_chunk.
>
> Passes regress, OK for commit?

LGTM but for one minor thing...
Reviewed-by: DJ Delorie <dj@redhat.com>

> +  size_t align = MALLOC_ALIGNMENT - CHUNK_HDR_SZ;

This is no longer an alignment (in the sense we use the term in
malloc.c), so a more appropriate name would be better.  "padding",
perhaps?