From: Matt Porter <porter@cox.net>

There was a thread a while back on lkml where Dave Hansen proposed this
simple vmalloc usage reporting patch.  The thread pretty much died out as
most people seemed focused on what VM loading type bugs it could solve.  I
had posted that this type of information was really valuable in debugging
embedded Linux board ports.  A common example is where people do arch
specific setup that limits there vmalloc space and then they find modules
won't load.  ;) Having the Vmalloc* info readily available is real useful in
helping folks to fix their kernel ports.