Request approval to integrate 8006395 to 7u60

[mala bankal]

HI,

These changes have been reviewed earlier.
Requesting approval to integrate to 7u60.
http://cr.openjdk.java.net/~mbankal/8006395/webrev.00/

Brief Description :
Race in the socket asynchronous close mechanism on Linux which can lead
to blocking socket operations
issue is with closefd which first sends wakeup signal to all the threads
blocked on the fd , then closes/dup2 the fd.
But since signal may arrive in between these , the thread not blocked
needs to see that fd is closed on entry, else it will be woken up by the
signal.


JDK8 changeset is here :
http://hg.openjdk.java.net/jdk8/tl/jdk/rev/17b643956999

rgds
mala