[patch] Avoid the use of mmap as buffer for stdio streams

[Ulrich Drepper]

What code is _really_ affected by this?  We are using mmap for a number 
of reasons, one of which is that it reduces fragmentation on the heap. 
It works well and so far I don't see any reason to change this.  I've 
not seen programs which constantly and with high frequency fclose() files.

-- 
➧ Ulrich Drepper ➧ Red Hat, Inc. ➧ 444 Castro St ➧ Mountain View, CA ❖