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SubjectRe: kernel thread support - LWP's
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Andi Kleen <ak@muc.de> writes:

> Similar waitpid for a STOP and sigwaitinfo.

There wouldn't be only one extra syscall if the suspend flag is
implemented. The manager would be like this:


pid = clone (..., ... | CLONE_SUSPEND, ...);
if (sched_setparam (pid, ...) != 0
|| sched_setscheduler (pid, ...) != 0)
{
... kill newly created thread and report error ...
}
kill (pid, SIGCONT);

The child does not have to be modified at all, no trampolines and the
only new syscalls is the `kill' call.

--
---------------. drepper at gnu.org ,-. 1325 Chesapeake Terrace
Ulrich Drepper \ ,-------------------' \ Sunnyvale, CA 94089 USA
Cygnus Solutions `--' drepper at cygnus.com `------------------------
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