seccomp: add additional asynchronous I/O syscalls

A previous commit, "seccomp: add the asynchronous I/O syscalls to the
whitelist", added several asynchronous I/O syscalls but left out the
io_submit() and io_cancel() syscalls.  This patch corrects this by
adding the two missing asynchronous I/O syscalls.

Signed-off-by: Paul Moore <pmoore@redhat.com>
Reviewed-by: Eduardo Otubo <otubo@linux.vnet.ibm.com>
Message-id: 20130715193201.943.4913.stgit@localhost
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>

qemu-seccomp.c

@@ -30,6 +30,7 @@ static const struct QemuSeccompSyscall seccomp_whitelist[] = {
     { SCMP_SYS(sendto), 250 },
     { SCMP_SYS(socketcall), 250 },
     { SCMP_SYS(read), 249 },
+    { SCMP_SYS(io_submit), 249 },
     { SCMP_SYS(brk), 248 },
     { SCMP_SYS(clone), 247 },
     { SCMP_SYS(mmap), 247 },
@@ -214,6 +215,7 @@ static const struct QemuSeccompSyscall seccomp_whitelist[] = {
     { SCMP_SYS(recvmmsg), 241 },
     { SCMP_SYS(prlimit64), 241 },
     { SCMP_SYS(waitid), 241 },
+    { SCMP_SYS(io_cancel), 241 },
     { SCMP_SYS(io_setup), 241 },
     { SCMP_SYS(io_destroy), 241 }
 };