From: Arnd Bergmann <a...@arndb.de> Date: Sun, 16 Dec 2018 20:48:21 +0100
> This is one of only two files that initialize a semaphore to a negative > value. We don't really need the two semaphores here at all, but can do > the same thing in more conventional and more effient way, by using a > single waitqueue and an atomic thread counter. > > This gets us a little bit closer to eliminating classic semaphores from > the kernel. It also fixes a corner case where we fail to continue after > one of the threads fails to start up. > > An alternative would be to use a split kthread_create()+wake_up_process() > and completely eliminate the separate synchronization. > > Acked-by: Phil Sutter <p...@nwl.cc> > Signed-off-by: Arnd Bergmann <a...@arndb.de> > --- > Changes from v1: > - rebase to mainline, > - fix pr_err() output > - bail out if interrupted Applied, thanks Arnd.