Yes, that's true. However, it can be fixed, if the filesystem communicates either a write barrier (write this block before any blocks I send down after it) or ordering information (write block X before block Y, order of block Z doesn't matter). Once it is so easy to work on I/O scheduling, the need for this will become so evident that there is no question that it will be done.
Copyright © 2017, Eklektix, Inc.
Comments and public postings are copyrighted by their creators.
Linux is a registered trademark of Linus Torvalds