On Monday 24 August 2009, Theodore Tso wrote: > On Mon, Aug 24, 2009 at 10:33:10AM +0200, Christian Fischer wrote: > > I try to figure out reasonable mount options for ext4. > > > > I've seen a "Enable asynchronous commits by default" patch from Sun, 21 > > Sep 2008. > > > > Why is it revoked? > > It patch was never merged because the ayschronous commits feature > disabled all write barriers, so under heavy workloads a power failure > could cause data loss. > > No one has gotten around to looking at this closely; I think adding a > strategically placed blkdev_issue_flush() will allow us to safely > enable this feature, but it needs careful study. > > Thanks for reminding us about this bit of unfinished business. I'll > put it back on our todo list, where it had fallen off. For now, it's > not safe to use, which is why it's not enabled by default. > > - Ted Hi Ted, Thanks, good to know that this better isn't to use. Christian > -- > To unsubscribe from this list: send the line "unsubscribe linux-ext4" in > the body of a message to majordomo@xxxxxxxxxxxxxxx > More majordomo info at http://vger.kernel.org/majordomo-info.html -- To unsubscribe from this list: send the line "unsubscribe linux-ext4" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
