[PATCH] malloc: Avoid premature fallback to mmap [BZ #20284]

[Siddhesh Poyarekar]

On Tue, Jun 21, 2016 at 05:21:18PM +0200, Florian Weimer wrote:
> 2016-06-21  Florian Weimer  <fweimer@redhat.com>
> 
> 	[BZ #20284]
> 	* malloc/arena.c (reused_arena): Do not return NULL if we start
> 	out with a non-corrupted arena.
> 

Looks OK to me.  The commit log could however use a nice explanation
of what the problem is.

Siddhesh