Ingo Molnar <[EMAIL PROTECTED]> wrote: > > > There's a little lock ranking diagram in jbd.h which tells us that > > these locks nest inside j_list_lock and j_state_lock. So I guess > > you'll need to turn those into semaphores. > > indeed. I did this (see the three followup patches, against BK-curr), > and it builds/boots/works just fine on an ext3 box. Do we want to try > this in -mm?
ooh, I'd rather not. I spent an intense three days removing all the sleeping locks from ext3 (and three months debugging the result). Ended up gaining 1000% on 16-way. Putting them back in will really hurt the SMP performance. - 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/
