hg: jdk9/sandbox/jdk: 8080589: (fs) FileChannel.force should use fcntl(F_FULLFSYNC) instead of fsync on OS X

[chris.hegarty at oracle.com]

Changeset: e08b856baa26
Author:    bpb
Date:      2015-05-21 09:57 -0700
URL:       http://hg.openjdk.java.net/jdk9/sandbox/jdk/rev/e08b856baa26

8080589: (fs) FileChannel.force should use fcntl(F_FULLFSYNC) instead of fsync on OS X
Summary: Replace f[data]sync(fd) with fcntl(fd, F_FULLSYNC) on OS X.
Reviewed-by: alanb

! src/java.base/unix/native/libnio/ch/FileDispatcherImpl.c