On 2010-08-03 14:37, Artem Bityutskiy wrote: > On Tue, 2010-08-03 at 14:27 +0200, Jens Axboe wrote: >> On 2010-07-25 13:29, Artem Bityutskiy wrote: >>> Hi, >>> >>> here is v6 of the patch series which clean-ups bdi threads and substantially >>> lessens amount of unnecessary kernel wake-ups, which is very important on >>> battery-powered devices. >>> >>> This patch-set is also available at: >>> git://git.infradead.org/users/dedekind/misc-2.6.git flushers_v6 >> >> Thanks Artem, for sticking around long enough to get this into >> shape. I have finally merged it. > > Thanks, but > >>> 1. Use 'spin_lock_bh' for the 'bdi->wb_lock' (changed patch N12) >> >> I'd rather not, question is how to avoid it. Either just wakeup the >> default thread, or punt the lock-and-check bdi->wb.task to a thread. > > you merged this change, do you want me to send a separate patch which > undo the 'spin_lock_bh' change? I'll think about how to avoid this and > come back. Yes, it's not a huge thing, but it would be nice to get rid of. So I figured it was better to merge it and not have you respin the series yet again. -- Jens Axboe -- To unsubscribe from this list: send the line "unsubscribe linux-fsdevel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
