Both eventfd and eventfd2 have post handlers that we were failing
to call on most platforms. Fixes BZ #330459.


git-svn-id: svn://svn.valgrind.org/valgrind/trunk@13784 a5019735-40e9-0310-863c-91ae7b9d1cf9
Add support for the clock_adjtime system call.

Based on a patch from Stefan Sørensen on BZ#330469.


git-svn-id: svn://svn.valgrind.org/valgrind/trunk@13785 a5019735-40e9-0310-863c-91ae7b9d1cf9