On Wed 17-11-21 15:34:42, NeilBrown wrote: > > Block devices do not, in general, report congestion any more, so this > congestion_wait() is effectively just a sleep. > > It isn't entirely clear what is being waited for, but as we only wait > when j_async_throttle is elevated, it seems reasonable to stop waiting > when j_async_throttle becomes zero - or after the same timeout. > > So change to use wait_event_event_timeout() for waiting, and > wake_up_var() to signal an end to waiting. > > Signed-off-by: NeilBrown <neilb@xxxxxxx> > --- > > I have no idea who might take this.... Jens and Jan have both landed > reiserfs patches recently... Yeah, I guess I can take this one. Honestly the whole code around j_async_throttle looks a bit suspicious but your patch does not make it worse so it looks safe to me :). Honza -- Jan Kara <jack@xxxxxxxx> SUSE Labs, CR
