On Sat, 2014-05-10 at 12:03 +0200, Manfred Spraul wrote: > GETZCNT is supposed to return the number of threads that wait until > a semaphore value becomes 0. > The current implementation overlooks complex operations that contain > both wait-for-zero operation and operations that alter at least one semaphore.
Indeed. the pending_alter list does represent blocked processes on the sem. Good catch. Btw, how on earth did you run into this? reading the code or a real case? > > The patch fixes that. > It's intentionally copy&paste, this will be cleaned up in the next patch. Instead I would have expected this patch to actually come after the count_* refactoring. > Signed-off-by: Manfred Spraul <[email protected]> Reviewed-by: Davidlohr Bueso <[email protected]> -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
