On Wed, Aug 20 2008, Eric Sandeen wrote: > Milan Broz wrote: > > Hi, > > > > I run some barrier tests over device-mapper (which currently doesn't > > support barrier bio at all) and even if I set barrier=1 in ext3 mount, > > there is never any bio with barrier flag... (in 2.6.27-rc) > > > > How is the barrier=1 flag supposed to work in ext3 (JBD) now? > > Milan, you're right. Ric saw this same strange behavior when doing some > benchmarking with and without barriers; Chris noticed the change in > submit_bh; I was about to write up a similar patch to what you've sent > already. Jens, does Milan's fix look good to you? Yep looks good, thanks a lot Milan! I'll send in the patch, unless I'm badly mistaken we need it for 2.6.26-stable as well. -- 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
