On Fri, Jul 31, 2009 at 10:58 AM, Mingming<cmm@xxxxxxxxxx> wrote: > Eric and I looked at xfs code together the other day, xfs code did not > ensure DIO sync metadata (conversion) before return back to userspace. > It does ensure the workqueue kickoff the conversion and journal commit, > but it seems not waiting for it to complete. This seems confirmed by xfs > expert on IRC, who expressed DIO means only bypass page cache, but not > necessarily means sync on data and metadata unless file is opened with > SYNC mode. This will our expectations for DIO on ext4 also. mrubin -- 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
