We dont want to execute off keventd since it might hold a semaphore our
callers hold too.  This can happen when kthread_create() is called from
within keventd.  This happened due to the IRQ threading patches but it
could happen with other code too.
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>