review(XS): 7060836: RHEL 5.5 and 5.6 should support UseNUMA

[Igor Veresov]

There are popular linux distros that have a kernel that supports the 
sched_get_cpu() syscall but don't yet have a wrapper for it in libc. The 
solution is to implement the wrapper inside of the VM and call it if the 
libc version is not available.

Contributed-by: Andrew John Hughes <ahughes at redhat.com>

Webrev: http://cr.openjdk.java.net/~iveresov/7060836/webrev.00/

Tested with gc test suite.