What's the test coverage for this? xfstest generic/192 tests that atime is persisted over remounts, which we had a bug with when XFS used to have a lazy atime implementation somewhat similar to the proposal. We should have something similar for c/mtime as well. Also a test to ensure timestamps are persisted afer a fsync, although right now I can't imagine how to do that genericly as no other filesystem seems to have an equivaent to XFS_IOC_GOINGDOWN. It seems you also handle i_version updates lazily. although that's not mentioned anywhere. I actually have a clarification request out on the IETF NFSv4 list about the persistance requirements for the change counter but I've not seen an answer to it yet. -- 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