[debian-mysql] Bug#659565: Bug#659565: mysql-5.5: Enable the Linux native AIO support

[Clint Byrum]

Excerpts from Guillaume Plessis's message of Sat Feb 11 22:46:42 -0800 2012:
> Package: mysql-5.5
> Version: 5.5.17-4
> Severity: wishlist
> Tags: patch
> 
> The InnoDB storage engine now support Linux native asynchronous IO.
> Enabling it by default may be a good idea for a better scalability
> 
> More info here
> http://blogs.innodb.com/wp/2010/04/innodb-performance-aio-linux/
> 
> (a patch is attached)

Great idea!

I'm a little concerned at what your patch might do on kfreebsd and
hurd. Perhaps put in some checks to disable it on those systems?